android 多图片上传

recyclerview item布局
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content">

    <RelativeLayout
        android:layout_marginRight="15dp"
        android:layout_width="95dp"
        android:layout_height="85dp"
        android:layout_centerInParent="true">

        <ImageView
            android:layout_marginRight="5dp"
            android:id="@+id/fiv"
            android:layout_width="85dp"
            android:layout_height="80dp"
            android:layout_marginTop="6dp"
            android:contentDescription="@null"
            android:scaleType="centerCrop"
            android:src="@color/cus_view_detail_lines" />

        <LinearLayout
            android:id="@+id/ll_del"
            android:layout_width="25dp"
            android:layout_height="25dp"
            android:layout_alignParentEnd="true"
            android:layout_alignParentRight="true"
            android:gravity="end"
            android:orientation="vertical">
            <ImageView
                android:id="@+id/iv_del"
                android:layout_width="20dp"
                android:layout_height="20dp"
                android:contentDescription="@null"
                android:scaleType="fitXY"
                android:src="@mipmap/red" />
        </LinearLayout>

        <ImageView
            android:id="@+id/iv_duration"
            android:layout_width="80dp"
            android:layout_height="80dp"
            android:scaleType="centerCrop" />

    </RelativeLayout>

</RelativeLayout>

横屏
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:background="@color/color_white">

    <include
        android:id="@+id/include"
        layout="@layout/title" />


    <Button
        android:id="@+id/bt_put"
        android:layout_width="match_parent"
        android:layout_height="34dp"
        android:layout_alignParentBottom="true"
        android:layout_centerHorizontal="true"
        android:layout_marginLeft="96dp"
        android:layout_marginTop="10dp"
        android:layout_marginRight="84dp"
        android:layout_marginBottom="10dp"
        android:background="@drawable/btn_background"
        android:text="提交"
        android:textColor="@color/color_white"
        android:textSize="15sp" />

    <ScrollView
        android:id="@+id/scroview"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_above="@+id/bt_put"
        android:layout_below="@+id/include"
        android:orientation="vertical"
        android:scrollbars="none">

        <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:background="@color/color_white"
            android:orientation="horizontal">

            <RelativeLayout
                android:layout_width="0dp"
                android:layout_height="wrap_content"
                android:layout_weight="3.5">

                <TextView
                    android:id="@+id/tv_phone"
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:layout_marginLeft="30dp"
                    android:layout_marginTop="10dp"
                    android:text="您的手机号、QQ号、邮箱是？"
                    android:textColor="@color/black"
                    android:textSize="17sp" />

                <TextView
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:layout_marginTop="11dp"
                    android:layout_toRightOf="@id/tv_phone"
                    android:text="(选填)"
                    android:textSize="14sp" />

                <EditText
                    android:id="@+id/et_phone"
                    android:layout_width="500dp"
                    android:layout_height="50dp"
                    android:layout_marginLeft="30dp"
                    android:layout_marginTop="50dp"
                    android:background="@drawable/under_line_transparent"
                    android:hint="填写多种联系方式时，请用逗号分隔。"
                    android:imeOptions="actionDone"
                    android:inputType="number"
                    android:paddingLeft="20dp"
                    android:paddingRight="20dp"
                    android:textSize="14sp" />

                <TextView
                    android:id="@+id/tv_question"
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:layout_below="@id/et_phone"
                    android:layout_marginLeft="30dp"
                    android:layout_marginTop="30dp"
                    android:text="问题/意见描述"
                    android:textColor="@color/black"
                    android:textSize="17sp" />

                <TextView
                    android:id="@+id/tv_required"
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:layout_below="@id/et_phone"
                    android:layout_marginLeft="5dp"
                    android:layout_marginTop="30dp"
                    android:layout_toRightOf="@id/tv_question"
                    android:text="(必填)"
                    android:textSize="14sp" />

                <TextView
                    android:id="@+id/tv_sumber"
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:layout_below="@id/et_phone"
                    android:layout_marginLeft="285dp"
                    android:layout_marginTop="30dp"
                    android:layout_toRightOf="@id/tv_required"
                    android:text="（0/300）"
                    android:textSize="14sp" />

                <EditText
                    android:id="@+id/et_input"
                    android:layout_width="500dp"
                    android:layout_height="123dp"
                    android:layout_below="@id/tv_question"
                    android:layout_marginLeft="30dp"
                    android:layout_marginTop="10dp"
                    android:background="@drawable/under_line_transparent"
                    android:gravity="top"
                    android:hint="请留下您宝贵的意见，字数不少于10个字"
                    android:imeOptions="actionDone"
                    android:maxLength="300"
                    android:paddingLeft="20dp"
                    android:paddingTop="10dp"
                    android:paddingRight="20dp"
                    android:paddingBottom="10dp"
                    android:textSize="14sp" />

            </RelativeLayout>

            <LinearLayout
                android:layout_width="0dp"
                android:layout_height="match_parent"
                android:layout_weight="1"
                android:orientation="vertical">

                <TextView
                    android:id="@+id/tv_sc"
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:layout_alignParentRight="true"
                    android:layout_marginLeft="13dp"
                    android:text="上传图片"
                    android:textColor="@color/black"
                    android:textSize="17sp" />

                <TextView
                    android:id="@+id/tv_get_photo"
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:layout_alignParentRight="true"
                    android:text="（选填,您可以上传3张）"
                    android:textSize="14sp" />

                <android.support.v7.widget.RecyclerView
                    android:id="@+id/recyclerview"
                    android:layout_width="match_parent"
                    android:layout_height="wrap_content"
                    android:layout_marginLeft="10dp"
                    android:layout_marginTop="15dp"
                    android:layout_marginRight="10dp"
                    android:overScrollMode="never" />
            </LinearLayout>
        </LinearLayout>
    </ScrollView>
</RelativeLayout>

竖屏
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:background="@color/color_white">

    <include
        android:id="@+id/include"
        layout="@layout/titles" />

    <Button
        android:id="@+id/bt_put"
        android:layout_width="match_parent"
        android:layout_height="54dp"
        android:layout_alignParentBottom="true"
        android:layout_centerHorizontal="true"
        android:layout_marginLeft="22dp"
        android:layout_marginTop="10dp"
        android:layout_marginRight="20dp"
        android:layout_marginBottom="5dp"
        android:background="@drawable/btn_background"
        android:text="提交"
        android:textColor="@color/color_white"
        android:textSize="18sp" />

    <ScrollView
        android:id="@+id/scroview"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_above="@+id/bt_put"
        android:layout_below="@+id/include"
        android:orientation="vertical"
        android:scrollbars="none">

        <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:background="@color/color_white"
            android:orientation="horizontal">

            <RelativeLayout
                android:layout_width="match_parent"
                android:layout_height="wrap_content">

                <TextView
                    android:id="@+id/tv_phone"
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:layout_marginLeft="28dp"
                    android:layout_marginTop="10dp"
                    android:text="您的手机号、QQ号、邮箱是？"
                    android:textColor="@color/black"
                    android:textSize="18sp" />


                <TextView
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:layout_marginTop="12dp"
                    android:layout_toRightOf="@id/tv_phone"
                    android:text="(选填)"
                    android:textSize="15sp" />

                <EditText
                    android:id="@+id/et_phone"
                    android:layout_width="500dp"
                    android:layout_height="50dp"
                    android:layout_marginLeft="15dp"
                    android:layout_marginTop="50dp"
                    android:layout_marginRight="15dp"
                    android:background="@drawable/under_line_transparent"
                    android:hint="填写多种联系方式时，请用逗号分隔。"
                    android:imeOptions="actionDone"
                    android:inputType="number"
                    android:paddingLeft="20dp"
                    android:paddingRight="20dp"
                    android:textSize="14sp" />

                <TextView
                    android:id="@+id/tv_question"
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:layout_below="@id/et_phone"
                    android:layout_marginLeft="30dp"
                    android:layout_marginTop="30dp"
                    android:text="问题/意见描述"
                    android:textColor="@color/black"
                    android:textSize="17sp" />

                <TextView
                    android:id="@+id/tv_required"
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:layout_below="@id/et_phone"
                    android:layout_marginLeft="5dp"
                    android:layout_marginTop="32dp"
                    android:layout_toRightOf="@id/tv_question"
                    android:text="(必填)"
                    android:textSize="14sp" />

                <RelativeLayout
                    android:layout_width="match_parent"
                    android:layout_height="wrap_content"
                    android:layout_below="@id/et_phone"
                    android:orientation="horizontal">

                    <TextView
                        android:id="@+id/tv_sumber"
                        android:layout_width="wrap_content"
                        android:layout_height="wrap_content"
                        android:layout_alignParentRight="true"
                        android:layout_marginTop="30dp"
                        android:layout_marginRight="20dp"
                        android:text="（0/300）"
                        android:textSize="14sp" />

                </RelativeLayout>

                <EditText
                    android:id="@+id/et_input"
                    android:layout_width="500dp"
                    android:layout_height="184dp"
                    android:layout_below="@id/tv_question"
                    android:layout_marginLeft="15dp"
                    android:layout_marginTop="13dp"
                    android:layout_marginRight="15dp"
                    android:background="@drawable/under_line_transparent"
                    android:gravity="top"
                    android:hint="请留下您宝贵的意见，字数不少于10个字"
                    android:imeOptions="actionDone"
                    android:maxLength="300"
                    android:paddingLeft="20dp"
                    android:paddingTop="10dp"
                    android:paddingRight="20dp"
                    android:paddingBottom="10dp"
                    android:textSize="14sp" />

                <TextView
                    android:id="@+id/tv_sc"
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:layout_below="@id/et_input"
                    android:layout_marginLeft="17dp"
                    android:layout_marginTop="20dp"
                    android:text="上传图片"
                    android:textColor="@color/black"
                    android:textSize="18sp" />

                <TextView
                    android:id="@+id/tv_get_photo"
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:layout_below="@id/et_input"
                    android:layout_marginLeft="90dp"
                    android:layout_marginTop="23dp"
                    android:text="（选填,您可以上传3张）"
                    android:textSize="14sp" />

                <android.support.v7.widget.RecyclerView
                    android:id="@+id/recyclerview"
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:layout_below="@id/tv_sc"
                    android:layout_marginLeft="10dp"
                    android:layout_marginTop="15dp"
                    android:layout_marginRight="10dp"
                    android:overScrollMode="never" />
            </RelativeLayout>

        </LinearLayout>

    </ScrollView>

</RelativeLayout>

主函数

package com.example.zyghfeedback.commits;

import android.app.Activity;
import android.app.AlertDialog;
import android.app.Dialog;
import android.content.ContentUris;
import android.content.ContentValues;
import android.content.Context;
import android.content.DialogInterface;
import android.content.Intent;
import android.content.pm.ActivityInfo;
import android.content.pm.PackageManager;
import android.content.res.Configuration;
import android.database.Cursor;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.net.Uri;
import android.os.Build;
import android.os.Bundle;
import android.os.Environment;
import android.os.Handler;
import android.os.Message;
import android.os.ParcelFileDescriptor;
import android.provider.DocumentsContract;
import android.provider.MediaStore;
import android.support.annotation.Nullable;
import android.support.v4.app.ActivityCompat;
import android.support.v4.content.ContextCompat;
import android.support.v7.widget.GridLayoutManager;
import android.support.v7.widget.LinearLayoutManager;
import android.support.v7.widget.RecyclerView;
import android.text.Editable;
import android.text.TextUtils;
import android.text.TextWatcher;
import android.util.Log;
import android.view.Gravity;
import android.view.LayoutInflater;
import android.view.View;
import android.view.Window;
import android.view.WindowManager;
import android.widget.Button;
import android.widget.EditText;
import android.widget.ImageView;
import android.widget.TextView;
import android.widget.Toast;

import com.example.zyghfeedback.R;
import com.example.zyghfeedback.assist.FeedbackGlobalManager;
import com.example.zyghfeedback.assist.Image;
import com.example.zyghfeedback.assist.WeiboDialogUtils;
import com.example.zyghfeedback.assist.ZyagUtils;
import com.example.zyghfeedback.feebacklist.FeedbackList;;
import org.json.JSONException;
import org.json.JSONObject;

import java.io.File;
import java.io.FileDescriptor;
import java.io.FileOutputStream;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;

import okhttp3.MediaType;
import okhttp3.MultipartBody;
import okhttp3.OkHttpClient;
import okhttp3.Request;
import okhttp3.RequestBody;
import okhttp3.Response;

public class CommitsActivity extends Activity implements View.OnClickListener {
    public static final int CHOOSE_PHOTO = 2;// 相册
    //用于横竖屏切换后recyclerview显示行数
    private boolean HORIZONTAL_SREEN = false;
    private RecyclerView recyclerview;
    private int maxSelectNum = 3;//最多到几张还可以选择
    private List<Image> selectList = new ArrayList<>();
    private CommitsAdapter adapter;

    private View include;
    private ImageView iv_back;
    //提交按钮
    private Button bt_put;
    private EditText et_phone, et_input;
    private TextView tv_sumber;
    private String phone, input;

    private GridLayoutManager layoutManager;

    private Dialog mWeiboDialog;
    Handler handler = new Handler() {
        @Override
        public void handleMessage(Message msg) {
            if (msg.what == 100) {
                adapter.notifyDataSetChanged();
            } else if (msg.what == 2) {
                WeiboDialogUtils.closeDialog(mWeiboDialog);
                AlertDialog.Builder builder = new AlertDialog.Builder(CommitsActivity.this);
                builder.setTitle("提交成功");
                builder.setNegativeButton(("OK"), new DialogInterface.OnClickListener() {
                    @Override
                    public void onClick(DialogInterface dialog, int which) {
                        Intent intent = new Intent(CommitsActivity.this, FeedbackList.class);
                        intent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
                        startActivity(intent);
                        selectList.clear();
                        dialog.dismiss();
                    }
                });
                if (!((Activity) CommitsActivity.this).isFinishing()) {
                    AlertDialog dialog = builder.create();
                    dialog.show();
                }

            }
            super.handleMessage(msg);
        }
    };

    @Override
    protected void onCreate(@Nullable Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        this.requestWindowFeature(Window.FEATURE_NO_TITLE);
        this.getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,
                WindowManager.LayoutParams.FLAG_FULLSCREEN);
        Configuration cf = this.getResources().getConfiguration();
        int ori = cf.orientation;
        if (ori == cf.ORIENTATION_LANDSCAPE) {
            setContentView(R.layout.feedback_commits);
            setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE);//横屏
            HORIZONTAL_SREEN = true;
        } else if (ori == cf.ORIENTATION_PORTRAIT) {
            setContentView(R.layout.feedback_commits);
            setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_PORTRAIT);//竖屏
            HORIZONTAL_SREEN = false;
        }
        setinit();
        setonclick();
        et_phone.setText("");
        et_input.setText("");
    }

    private void setinit() {
        include = findViewById(R.id.include);
        iv_back = include.findViewById(R.id.iv_back);
        bt_put = findViewById(R.id.bt_put);
        et_phone = findViewById(R.id.et_phone);
        et_input = findViewById(R.id.et_input);
        tv_sumber = findViewById(R.id.tv_sumber);

        recyclerview = findViewById(R.id.recyclerview);
        //是否为横屏
        if (HORIZONTAL_SREEN) {
            //设置布局管理器
            layoutManager = new GridLayoutManager(this, 1, LinearLayoutManager.VERTICAL, false);
        } else {
            layoutManager = new GridLayoutManager(this, 3, LinearLayoutManager.VERTICAL, false);
        }
        recyclerview.setLayoutManager(layoutManager);
        //设置adapter
        adapter = new CommitsAdapter(this, onAddPicClickListener);
        //添加图片集合
        adapter.setList(selectList);
        //传递上传图片最大个数
        adapter.setSelectMax(maxSelectNum);
        recyclerview.setAdapter(adapter);
        //
        adapter.setOnItemClickListener(new CommitsAdapter.OnItemClickListener() {
            @Override
            public void onItemClick(int position, View v) {
                if (selectList.size() > 0) {
                    Image media = selectList.get(position);
                    Toast.makeText(CommitsActivity.this, "暂时不可以哦", Toast.LENGTH_SHORT).show();
                }
            }
        });
    }


    private void setonclick() {
        bt_put.setOnClickListener(this);
        iv_back.setOnClickListener(this);
        et_input.addTextChangedListener(new TextWatcher() {
            CharSequence temp;
            @Override
            //只要编辑框内容有变化就会调用该方法，s为编辑框变化后的内容
            public void onTextChanged(CharSequence s, int start, int before, int count) {
                temp = s;
            }
            @Override
            //编辑框内容变化之前会调用该方法，s为编辑框内容变化之前的内容
            public void beforeTextChanged(CharSequence s, int start, int count, int after) {

            }
            @Override
            //编辑框内容变化之后会调用该方法，s为编辑框内容变化后的内容
            public void afterTextChanged(Editable s) {
                tv_sumber.setText(("(" + "" + temp.length() + "/" + "300)"));
            }
        });
    }

    private CommitsAdapter.onAddPicClickListener onAddPicClickListener = new CommitsAdapter.onAddPicClickListener() {
        @Override
        public void onAddPicClick() {
            show();
        }
    };

    //选择相册dialog
    private void show() {
        final Dialog dialog = new Dialog(this, R.style.ActionSheetDialogStyle);
        View inflate = LayoutInflater.from(this).inflate(R.layout.dialog_item, null);
        //相册
        Button bt_camera = inflate.findViewById(R.id.bt_camera);
        //取消
        Button bt_cancel = inflate.findViewById(R.id.bt_cancel);
        dialog.setContentView(inflate);
        Window dialogWindow = dialog.getWindow();
        dialogWindow.setGravity(Gravity.BOTTOM);
        WindowManager.LayoutParams lp = dialogWindow.getAttributes();
        lp.y = 20;
        dialogWindow.setAttributes(lp);
        bt_cancel.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                dialog.dismiss();
            }
        });
        bt_camera.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                dialog.dismiss();
                if (ContextCompat.checkSelfPermission(CommitsActivity.this,
                        android.Manifest.permission.WRITE_EXTERNAL_STORAGE) != PackageManager.PERMISSION_GRANTED) {
                    ActivityCompat.requestPermissions(CommitsActivity.this, new String[]{android.Manifest.permission.WRITE_EXTERNAL_STORAGE, android.Manifest.permission.READ_EXTERNAL_STORAGE}, 1);
                } else {
                    //从相册获取图片
                    openAlbum();
                }
            }
        });
        dialog.show();
    }

    //进入相册
    private void openAlbum() {
        Intent intent = new Intent("android.intent.action.GET_CONTENT");
        intent.setType("image/*");
        startActivityForResult(intent, CHOOSE_PHOTO);//打开相册
    }

    //相册权限申请
    @Override
    public void onRequestPermissionsResult(int requestCode, String[] permissions,
                                           int[] grantResults) {
        super.onRequestPermissionsResult(requestCode, permissions, grantResults);
        switch (requestCode) {
            case 1:
                if (grantResults.length > 0 && grantResults[0] == PackageManager.PERMISSION_GRANTED) {
                    openAlbum();
                } else {
                    Toast.makeText(this, "你拒绝了权限申请，可能无法打开相册哟", Toast.LENGTH_SHORT).show();
                }
                break;
            default:
        }
    }

    @Override
    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
        switch (requestCode) {
            case CHOOSE_PHOTO:
                if (resultCode == RESULT_OK) {
                    // 判断手机系统版本号
                    if (Build.VERSION.SDK_INT >= 19) {
                        // 4.4及以上系统使用这个方法处理图片
                        handleImageOnKitKat(data);
                    } else {
                        // 4.4以下系统使用这个方法处理图片
                        handleImageBeforeKitKat(data);
                    }
                }
                break;
            default:
                break;
        }
    }

    private void handleImageOnKitKat(Intent data) {
        String imagePath = null;
        Uri uri = data.getData();
        if (DocumentsContract.isDocumentUri(this, uri)) {
            // 如果是document类型的Uri，则通过document id处理
            String docId = DocumentsContract.getDocumentId(uri);
            if ("com.android.providers.media.documents".equals(uri.getAuthority())) {
                String id = docId.split(":")[1]; // 解析出数字格式的id
                String selection = MediaStore.Images.Media._ID + "=" + id;
                imagePath = getImagePath(MediaStore.Images.Media.EXTERNAL_CONTENT_URI, selection);
            } else if ("com.android.providers.downloads.documents".equals(uri.
                    getAuthority())) {
                Uri contentUri = ContentUris.withAppendedId(Uri.parse("content: downloads/public_downloads"), Long.valueOf(docId));
                imagePath = getImagePath(contentUri, null);
            }
        } else if ("content".equalsIgnoreCase(uri.getScheme())) {
            // 如果是content类型的Uri，则使用普通方式处理
            imagePath = getImagePath(uri, null);
        } else if ("file".equalsIgnoreCase(uri.getScheme())) {
            // 如果是file类型的Uri，直接获取图片路径即可
            imagePath = uri.getPath();
        }
        displayImage(imagePath); // 根据图片路径显示图片
    }

    private void handleImageBeforeKitKat(Intent data) {
        Uri uri = data.getData();
        String imagePath = getImagePath(uri, null);
        displayImage(imagePath);
    }

    private String getImagePath(Uri uri, String selection) {
        String path = null;
        // 通过Uri和selection来获取真实的图片路径
        Cursor cursor = getContentResolver().query(uri, null, selection, null, null);
        if (cursor != null) {
            if (cursor.moveToFirst()) {
                path = cursor.getString(cursor.getColumnIndex(MediaStore.
                        Images.Media.DATA));
            }
            cursor.close();
        }
        return path;
    }

    private void displayImage(String imagePath) {
//        Bitmap bitmap = BitmapFactory.decodeFile(imagePath);
        Bitmap bitmap1 = getBitmapFromUri(this, getImageContentUri(this, imagePath));
        if (bitmap1 != null) {
            //获取图片
//             File headFile = null;
            //把获取到的图片放进集合里 每次获取一个
            selectList.add(new Image(bitmap1));
            adapter.setList(selectList);
            adapter.notifyDataSetChanged();
        } else {
            Toast.makeText(this, "获取图片失败", Toast.LENGTH_SHORT).show();
        }
    }
    // 通过uri加载图片
    public static Bitmap getBitmapFromUri(Context context, Uri uri) {
        try {
            ParcelFileDescriptor parcelFileDescriptor =
                    context.getContentResolver().openFileDescriptor(uri, "r");
            FileDescriptor fileDescriptor = parcelFileDescriptor.getFileDescriptor();
            Bitmap image = BitmapFactory.decodeFileDescriptor(fileDescriptor);
            parcelFileDescriptor.close();
            return image;
        } catch (Exception e) {
            e.printStackTrace();
        }
        return null;
    }

    public static Uri getImageContentUri(Context context, String path) {
        Cursor cursor = context.getContentResolver().query(MediaStore.Images.Media.EXTERNAL_CONTENT_URI,
                new String[]{MediaStore.Images.Media._ID}, MediaStore.Images.Media.DATA + "=? ",
                new String[]{path}, null);
        if (cursor != null && cursor.moveToFirst()) {
            int id = cursor.getInt(cursor.getColumnIndex(MediaStore.MediaColumns._ID));
            Uri baseUri = Uri.parse("content://media/external/images/media");
            return Uri.withAppendedPath(baseUri, "" + id);
        } else {
            // 如果图片不在手机的共享图片数据库，就先把它插入。
            if (new File(path).exists()) {
                ContentValues values = new ContentValues();
                values.put(MediaStore.Images.Media.DATA, path);
                return context.getContentResolver().insert(MediaStore.Images.Media.EXTERNAL_CONTENT_URI, values);
            } else {
                return null;
            }
        }
    }

    //将bitmap转化为png格式
    //首先获取了系统相册的地址，然后每次我拍下照片或者选择照片时，
    // 都进行简单的压缩，因为图片要上传到服务器进行审核管理，做成微信头像之类的超级压缩方法有损画质，
    // 所以我只是进行了简单的压缩上传最后写成一个文件。（在第二个页面的时候可能会有几个问题，
    // 三个ImageView即是三个bitmap，三个File文件。如何判断及正确的显示，我们可以定义成全局变量，
    // 因为都是点击事件，所以bitmap会在点击后修改，然后保存下来。
    public File saveMyBitmap(Bitmap mBitmap, String prefix) {
        File storageDir = Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_DCIM);
        File file = null;
        try {
            file = File.createTempFile(
                    prefix,  /* prefix */
                    ".jpg"
//                    ,         /* suffix */
//                    storageDir      /* directory */
            );
            FileOutputStream fos = new FileOutputStream(file); //创建一个字节数组输出流对象
            //Bitmap.CompressFormat format 图像的压缩格式；
            //int quality 图像压缩率，0-100。 0 压缩100%，100意味着不压缩；
            //OutputStream stream 写入压缩数据的输出流；
            mBitmap.compress(Bitmap.CompressFormat.JPEG, 50, fos);//通过bitmap中的compress,将图片压缩到os流对象中.
            //其中第二个参数quality,为100表示不压缩,如果为80,表示压缩百分之20.
//            Bitmap.createScaledBitmap(mBitmap, mBitmap.getWidth()/2, mBitmap.getHeight()/2, true);

            fos.flush();
            fos.close();
        } catch (Exception e) {
            e.printStackTrace();
        }
        return file;
    }

    @Override
    public void onClick(View view) {
        int id = view.getId();
        //提交
        if (id == R.id.bt_put) {
            //获取问题描述
            input = et_input.getText().toString();
            //获取手机号等
            phone = et_phone.getText().toString();
            if (TextUtils.isEmpty(input) || input.length() < 10) {
                AlertDialog.Builder builder = new AlertDialog.Builder(this);
                builder.setTitle("反馈内容10-300字之间");
                builder.setNegativeButton(("OK"), new DialogInterface.OnClickListener() {
                    @Override
                    public void onClick(DialogInterface dialog, int which) {
                        dialog.dismiss();
                    }
                });
                AlertDialog dialog = builder.create();
                dialog.show();
            } else {
                //这里把图片上传给后台，后台返回图片地址（建议上传图片给后台之前，图片做压缩处理）
                if (selectList.size() == 0) {
                    getData("");
                } else {
                    upphoto(selectList);
                }
            }
        } else if (id == R.id.iv_back) {
            finish();
        }
    }


    //上传图片
    private void upphoto(final List<Image> filePaths) {
        mWeiboDialog = WeiboDialogUtils.createLoadingDialog(CommitsActivity.this, "加载中...");
        //开启线程来发起网络请求
        new Thread(new Runnable() {
            @Override
            public void run() {
                try {
                    //1 . 拿到OkHttpClient对象
                    OkHttpClient client = new OkHttpClient();
                    // MediaType.parse() 里面是上传的文件类型。
                    MultipartBody.Builder builder = new MultipartBody.Builder().setType(MultipartBody.FORM);
                    for (int i = 0; i < filePaths.size(); i++) {
                        Image image = filePaths.get(i);
                        //把bitmap转为数组
                        File headFile = saveMyBitmap(image.getPhoto(), "head");
                        File mFiles[] = new File[]{headFile};
                        //创建RequestBody封装参数
                        RequestBody fileBody = RequestBody.create(MediaType.parse("image/*"), mFiles[i]);
                        // 参数分别为， 请求key ，文件名称 ， RequestBody
                        builder.addFormDataPart("zyFile", mFiles[i].getName(), fileBody);
                    }
                    MultipartBody requestBody = builder.build();
//                    3 . 构建Request,将FormBody作为Post方法的参数传入
                    Request request = new Request.Builder()
                            .url("http://172.28.60.97:8200/ZYGameServer_v2/v1/upload/feedback")
                            .post(requestBody)
                            .build();
                    Response response = client.newCall(request).execute();
                    String responseData = response.body().string();
                    getfeedback(responseData);
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }

            //一个JSON对象——JSONObject{}
            //一个JSON数组——JSONArray[]
            private void getfeedback(String responseData) {
                try {
//                    Log.i("zyag", responseData);
                    //借用线程来为传图片加加载动画 具体思路当图片上传成功后调用
                    handler.sendEmptyMessageDelayed(2, 0);
                    JSONObject jsonObject1 = new JSONObject(responseData);
                    String path = jsonObject1.getString("path");
                    getData(path);
                } catch (JSONException e) {
                    e.printStackTrace();
                }
            }
        }).start();
    }

    private void getData(String strPath) {
        mWeiboDialog = WeiboDialogUtils.createLoadingDialog(CommitsActivity.this, "加载中...");
        //开启线程来发起网络请求
        new Thread(new Runnable() {
            @Override
            public void run() {
                try {
                    MediaType JSON = MediaType.parse("application/json; charset=utf-8");
                    JSONObject json = new JSONObject();
                    try {
                        json.put("zyno", FeedbackGlobalManager.getInstanse().getZykey());
                        json.put("userId", ZyagUtils.getAndroidID(CommitsActivity.this));
                        json.put("model", ZyagUtils.getDeviceModle());
                        json.put("osVersion", ZyagUtils.getAndroidSystemVersionName());
                        json.put("language", ZyagUtils.getLanguage());
                        json.put("network", ZyagUtils.GetNetype(CommitsActivity.this));
                        json.put("appVersion", ZyagUtils.getPackageVersion(CommitsActivity.this));
                        json.put("content", input);
                        json.put("des", phone);
//                        System.out.println("CommitsActivity.getData strPath=" + strPath);
                        if (!TextUtils.isEmpty(strPath)) {
                            json.put("imgs", strPath);//图片地址url
                        }
                    } catch (JSONException e) {
                        e.printStackTrace();
                    }
                    //1 . 拿到OkHttpClient对象
                    OkHttpClient client = new OkHttpClient();
                    //创建一个RequestBody(参数1：数据类型 参数2传递的json串)
                    RequestBody requestBody = RequestBody.create(JSON, String.valueOf(json));
                    //3 . 构建Request,将FormBody作为Post方法的参数传入
                    Request request = new Request.Builder()
                            .url("http://172.28.60.97:8200/ZYGameServer_v2/app/v2/feedback")
                            .post(requestBody)
                            .build();

                    Response response = client.newCall(request).execute();
                    String responseData = response.body().string();
                    getfeedback(responseData);
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }

            private void getfeedback(String responseData) {
                try {
                    JSONObject jsonObject = new JSONObject(responseData);
                    String code = jsonObject.getString("code");
                    if ("0".equals(code)) {
                        FeedbackGlobalManager.getInstanse().getFeedback().onSucess();
                        handler.sendEmptyMessageDelayed(2, 0);
                    } else {
                        FeedbackGlobalManager.getInstanse().getFeedback().onFailure();
                    }
                } catch (JSONException e) {
                    e.printStackTrace();
                }
            }
        }).start();
    }
}

recyclerview 适配器
package com.example.zyghfeedback.commits;

import android.content.Context;
import android.support.annotation.NonNull;
import android.support.v7.widget.RecyclerView;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ImageView;
import android.widget.LinearLayout;

import com.example.zyghfeedback.R;
import com.example.zyghfeedback.assist.Image;

import java.util.ArrayList;
import java.util.List;

public class CommitsAdapter extends RecyclerView.Adapter<CommitsAdapter.ViewHolder> {
    //用于判断是否显示图标
    //有图片
    public static final int TYPE_CAMERA = 1;
    //没有图片
    public static final int TYPE_PICTURE = 2;


    private List<Image> list = new ArrayList<>();
    private LayoutInflater mInflater;
    private Context context;
    private int selectMax = 4;

    /**
     * 点击添加图片跳转
     */
    private onAddPicClickListener mOnAddPicClickListener;

    public interface onAddPicClickListener {
        void onAddPicClick();
    }
    //获取最大显示个数
    public void setSelectMax(int selectMax) {
        this.selectMax = selectMax;
    }

    //获取图片集合
    public void setList(List<Image> list) {
        this.list = list;
    }




    public CommitsAdapter(Context context, onAddPicClickListener mOnAddPicClickListener) {
        this.context = context;
        mInflater = LayoutInflater.from(context);
        this.mOnAddPicClickListener = mOnAddPicClickListener;
    }

    /**
     * 创建ViewHolder
     */
    @NonNull
    @Override
    public CommitsAdapter.ViewHolder onCreateViewHolder(@NonNull ViewGroup viewGroup, int i) {
        View view = mInflater.inflate(R.layout.photo_item,
                viewGroup, false);
        final ViewHolder viewHolder = new ViewHolder(view);
        return viewHolder;
    }


    @Override
    public void onBindViewHolder(@NonNull CommitsAdapter.ViewHolder viewHolder, int position) {
        //少于selectMax张，显示继续添加的图标
        if (getItemViewType(position) == TYPE_CAMERA) {
            //显示添加图片图标
            viewHolder.mImg.setImageResource(R.mipmap.group);
            viewHolder.mImg.setOnClickListener(new View.OnClickListener() {
                @Override
                public void onClick(View v) {
                    mOnAddPicClickListener.onAddPicClick();
                }
            });
            viewHolder.ll_del.setVisibility(View.INVISIBLE);
        } else {
            //显示删除图片图标
            viewHolder.ll_del.setVisibility(View.VISIBLE);
            //删除图标点击事件
            viewHolder.ll_del.setOnClickListener(new View.OnClickListener() {
                @Override
                public void onClick(View view) {
                    int index = viewHolder.getAdapterPosition();
                    // 这里有时会返回-1造成数据下标越界,具体可参考getAdapterPosition()源码，
                    // 通过源码分析应该是bindViewHolder()暂未绘制完成导致，知道原因的也可联系我~感谢
                    if (index != RecyclerView.NO_POSITION) {
                        list.remove(index);
                        notifyItemRemoved(index);
                        notifyItemRangeChanged(index, list.size());
                    }
                }
            });
            Image image = list.get(position);
            //显示选中的图片
            viewHolder.mImg.setImageBitmap(image.getPhoto());
            //itemView 的点击事件
            if (mItemClickListener != null) {
                viewHolder.itemView.setOnClickListener(new View.OnClickListener() {
                    @Override
                    public void onClick(View v) {
                        int adapterPosition = viewHolder.getAdapterPosition();
                        mItemClickListener.onItemClick(adapterPosition, v);
                    }
                });
            }
        }
    }


    @Override
    public int getItemCount() {
        //判断存储图片个数和最大个数
        if (list.size() < selectMax) {
            return list.size() + 1;
        } else {
            return list.size();
        }
    }
    //形式：条件表达式 ？程序块1 ：程序块2 ；
    //含义：如果条件表达式为真，则本程序语句执行程序块1，程序块1的值即为整个表达式的值， 否则为表达式2的值。
    private boolean isShowAddItem(int position) {
        int size = list.size() == 0 ? 0 : list.size();
        return position == size;
    }

    @Override
    public int getItemViewType(int position) {
        if (isShowAddItem(position)) {
            //有图片
            return TYPE_CAMERA;
        } else {
            //没有图片
            return TYPE_PICTURE;
        }
    }

    public class ViewHolder extends RecyclerView.ViewHolder {
        ImageView mImg;
        LinearLayout ll_del;
        ImageView iv_duration;
        public ViewHolder(@NonNull View view) {
            super(view);
            mImg = (ImageView) view.findViewById(R.id.fiv);
            ll_del = (LinearLayout) view.findViewById(R.id.ll_del);
            iv_duration = (ImageView) view.findViewById(R.id.iv_duration);
        }
    }

    //点击事件接口
    protected OnItemClickListener mItemClickListener;

    public interface OnItemClickListener {
        void onItemClick(int position, View v);
    }

    public void setOnItemClickListener(OnItemClickListener listener) {
        this.mItemClickListener = listener;
    }
}

存放图片工具类
package com.example.zyghfeedback.assist;

import android.graphics.Bitmap;

public class Image {
    private Bitmap photo;

    public Image(Bitmap photo) {
        this.photo = photo;
    }
    public Bitmap getPhoto() {
        return photo;
    }

    public void setPhoto(Bitmap photo) {
        this.photo = photo;
    }
}