ios 第三方键盘开发无限刷屏浅析

姬拉关注

0.1 2016.09.02 19:26* 字数 629 阅读 958评论 2喜欢 4

故事前景：

某直播刷人气，主播随机截图抽取当前留言者为中奖对象......

想着写个第三方键盘无限刷然后写了这个么小玩意，贴出来互相学习

首先当然是创建一个手机APP项目：（这一步贴上来真是浪费流量.....）

新建项目以后我直接新建了两个控件：（为了研究键盘的发送，和写入数据用）

一开始我以为苹果会直接提供发送方法，类似点击键盘上的（done,return....）找了一圈苹果文档么发现，后来去墙外发现了原来是换一种方式玩的，往下看：

在原来的项目上添加了一个 target 如图 (这玩意就是苹果的第三方键盘了)

如下是自动创建的两个类，所有内容都从这里面展开：

首先要解决的第一个问题是如何插入文字，以微信为例，如何在微信聊天输入框插入文本：

UITextDocumentProxy 这个类为我们提供了插入，删除，等基本操作，但是方法也不多就几个基本的

//自己猜

- (void)dismissKeyboard;

//切换键盘

- (void)advanceToNextInputMode;

//判断是否存在文本（我猜的没有试验）

- (BOOL)hasText;

//插入文本

- (void)insertText:(NSString*)text;

//删除（我估计删除一个字符，我猜的没试）

- (void)deleteBackward;

这些方法够用了，一开始跑起来时候默认是长这样的：

创建新的view 没有什么特别的

跑起来的时候让我选择个APP 执行但是我发现没有选的也可以使用键盘，这个我后期研究差不多了陆续提交：

最最最重点的是我们已经可以插入文字，接下来就是解决如何调用发送这个功能了，找了一圈文档没找到，后来听了一遍《流川枫与苍井空》豁然开朗，原来只要插入 @“\n” 就能调用别人APP的

-(BOOL)textFieldShouldReturn:(UITextField*)textField

这个方法。

//发送

[self.textDocumentProxyinsertText:@"\n"];

接下来的刷屏就简单了，一个定时一插一发一发一插.....无穷尽也。

配上几个效果图：

end；

本人课余喜欢研究 object pascal ，object c ，java,玩些 c# 。欢迎广大IT男加群（367276878）互相学习

大家好我叫姬拉

iOS 自定义第三方键盘

28画生关注

2017.05.03 15:56* 字数 434 阅读 1099评论 4喜欢 1

iOS8新特性扩展(Extension)应用之四——自定义键盘控件

iOS8系统的开放第三方键盘，使得用户在输入法的选择上更加自主灵活，也更加贴近不同语言的输入风格。这篇博客，将介绍如何开发一个第三方的键盘控件。

一、了解UIInputViewController类

UIInputViewController是系统扩展支持键盘扩展的一个类，通过这个类，我们可以自定义一款我们自己的键盘提供给系统使用。

首先，我们先来看一下这个类中的一些属性和方法：

@property (nonatomic, retain) UIInputView *inputView;

键盘的输入视图，我们可以自定义这个视图。

@property (nonatomic, readonly) NSObject <UITextDocumentProxy> *textDocumentProxy;

实现了UITextDocumentProxy协议的一个对象，后面会介绍这个协议。

@property (nonatomic, copy) NSString *primaryLanguage;

系统为我们准备了一些本地化的语言字符串

- (void)dismissKeyboard;

收键盘的方法

- (void)advanceToNextInputMode;

切换到下一输入法的方法

UITextDocumentProxy协议内容如下：

@protocol UITextDocumentProxy <UIKeyInput>

//输入的上一个字符

@property (nonatomic, readonly) NSString *documentContextBeforeInput;

//即将输入的一个字符

@property (nonatomic, readonly) NSString *documentContextAfterInput;

//将输入的字符移动到某一位置

- (void)adjustTextPositionByCharacterOffset:(NSInteger)offset;

@end

而UITextDocumentProxy这个协议继承与UIKeyInput协议，UIKeyInput协议中提供的两个方法用于输入字符和删除字符：

- (void)insertText:(NSString *)text;

- (void)deleteBackward;

二、创建一款最简单的数字输入键盘

创建一个项目，作为宿主APP，接着我们File->new->target->customKeyBoard:

Snip20170503_8.png

Snip20170503_9.png

系统要求我们对键盘的布局要使用autolayout，并且只可以采用代码布局的方式，我们这里为了简单演示，将坐标写死：

- (void)viewDidLoad {

[super viewDidLoad];

// 设置数字键盘的UI

//数字按钮布局

for (int i=0; i<10; i++) {

UIButton * btn = [UIButton buttonWithType:UIButtonTypeSystem];

btn.frame=CGRectMake(20+45*(i%3), 20+45*(i/3), 40, 40);

btn.backgroundColor=[UIColor greenColor];

[btn setTitle:[NSString stringWithFormat:@"%d",i] forState:UIControlStateNormal];

btn.tag=101+i;

[btn addTarget:self action:@selector(click:) forControlEvents:UIControlEventTouchUpInside];

[self.view addSubview:btn];

}

//创建切换键盘按钮

UIButton * change = [UIButton buttonWithType:UIButtonTypeSystem];

change.frame=CGRectMake(200,20, 80, 40) ;

NSLog(@"%f,%f",self.view.frame.size.height,self.view.frame.size.width);

[change setBackgroundColor:[UIColor blueColor]];

[change setTitle:@"切换键盘" forState:UIControlStateNormal];

[change addTarget:self action:@selector(change) forControlEvents:UIControlEventTouchUpInside];

[self.view addSubview:change];

//创建删除按钮

UIButton * delete = [UIButton buttonWithType:UIButtonTypeSystem];

delete.frame=CGRectMake(200, 120, 80, 40);

[delete setTitle:@"delete" forState:UIControlStateNormal];

[delete setBackgroundColor:[UIColor redColor]];

[delete addTarget:self action:@selector(delete) forControlEvents:UIControlEventTouchUpInside];

[self.view addSubview:delete];

}

//删除方法

-(void)delete{

if (self.textDocumentProxy.documentContextBeforeInput) {

[self.textDocumentProxy deleteBackward];

}

//切换键盘方法

-(void)change{

[self advanceToNextInputMode];

}

//点击数字按钮将相应数字输入

-(void)click:(UIButton *)btn{

[self.textDocumentProxy insertText:[NSString stringWithFormat:@"%ld",btn.tag-101]];

}

运行后，在使用之前，我们需要先加入这个键盘：在模拟器系统设置中general->keyboard->keyboards->addNowKeyboard

选中我们自定义的键盘，之后运行浏览器，切换到我们的键盘，效果如下：

// KeyboardViewController.m

// KeyboardViewController

// Created by 王彦平 on 2019/2/18.

#import "KeyboardViewController.h"

@interface KeyboardViewController (){

UIButton *godoit;

}

@property (nonatomic, strong) UIButton *nextKeyboardButton;

@end

@implementation KeyboardViewController

- (void)updateViewConstraints {

[super updateViewConstraints];

// Add custom view sizing constraints here

}

- (void)viewDidLoad {

[super viewDidLoad];

// Perform custom UI setup here

self.nextKeyboardButton = [UIButton buttonWithType:UIButtonTypeSystem];

[self.nextKeyboardButton setTitle:NSLocalizedString(@"Next Keyboard", @"Title for 'Next Keyboard' button") forState:UIControlStateNormal];

[self.nextKeyboardButton sizeToFit];

self.nextKeyboardButton.translatesAutoresizingMaskIntoConstraints = NO;

[self.nextKeyboardButton addTarget:self action:@selector(handleInputModeListFromView:withEvent:) forControlEvents:UIControlEventAllTouchEvents];

[self.view addSubview:self.nextKeyboardButton];

[self.nextKeyboardButton.leftAnchor constraintEqualToAnchor:self.view.leftAnchor].active = YES;

[self.nextKeyboardButton.bottomAnchor constraintEqualToAnchor:self.view.bottomAnchor].active = YES;

[self createuI];

}

- (void)textWillChange:(id<UITextInput>)textInput {

// The app is about to change the document's contents. Perform any preparation here.

}

- (void)textDidChange:(id<UITextInput>)textInput {

// The app has just changed the document's contents, the document context has been updated.

UIColor *textColor = nil;

if (self.textDocumentProxy.keyboardAppearance == UIKeyboardAppearanceDark) {

textColor = [UIColor whiteColor];

} else {

textColor = [UIColor blackColor];

}

[self.nextKeyboardButton setTitleColor:textColor forState:UIControlStateNormal];

}

-(void)createuI{

godoit = [UIButton buttonWithType:UIButtonTypeCustom];

godoit.backgroundColor = [UIColor blueColor];

godoit.frame = CGRectMake(60, 100, 100, 100);

[godoit setTitle:@"走你" forState:UIControlStateNormal];

[godoit setTitleColor:[UIColor redColor] forState:UIControlStateNormal];

[godoit addTarget:self action:@selector(doit:) forControlEvents:UIControlEventTouchUpInside];

[self.view addSubview:godoit];

UIButton *btn2 = [UIButton buttonWithType:UIButtonTypeCustom];

btn2.backgroundColor = [UIColor blueColor];

btn2.frame = CGRectMake(200, 100, 100, 100);

[btn2 setTitle:@"变态循环" forState:UIControlStateNormal];

[btn2 setTitleColor:[UIColor redColor] forState:UIControlStateNormal];

// [btn2 addTarget:self action:@selector(send:) forControlEvents:UIControlEventTouchUpInside];

[self.view addSubview:btn2];

}

-(void)doit:(UIButton *)sender{

[self.textDocumentProxy insertText:@"\n"];

[self.textDocumentProxy insertText:@"你好我叫基拉"];

}

@end

#import "ViewController.h"

@interface ViewController ()<UITextViewDelegate,UITextFieldDelegate>

@end

@implementation ViewController

- (void)viewDidLoad {

[super viewDidLoad];

UITextView *text = [[UITextView alloc]initWithFrame:CGRectMake(0, 340, self.view.bounds.size.width, 300)];

text.backgroundColor = [UIColor colorWithRed:0.8304 green:0.8304 blue:0.8304 alpha:1.0];

[self.view addSubview:text];

text.delegate = self;

UITextField *text2 = [[UITextField alloc]initWithFrame:CGRectMake(0, 30, self.view.bounds.size.width, 30)];

text2.backgroundColor = [UIColor colorWithRed:0.8304 green:0.8304 blue:0.8304 alpha:1.0];

[self.view addSubview:text2];

text2.delegate = self;

}

-(BOOL)textFieldShouldReturn:(UITextField *)textField{

textField.text = [textField.text stringByAppendingString:@"done"];

//发送

return YES;

}

-(void)textViewDidChange:(UITextView *)textView{

textView.text = [textView.text stringByAppendingString:@""];

}

@end

#import "KeyboardViewController.h"

@interface KeyboardViewController (){

UIButton *godoit;

}

@property (nonatomic, strong) UIButton *nextKeyboardButton;

@end

@implementation KeyboardViewController

- (void)updateViewConstraints {

[super updateViewConstraints];

// Add custom view sizing constraints here

}

- (void)viewDidLoad {

[super viewDidLoad];

// Perform custom UI setup here

self.nextKeyboardButton = [UIButton buttonWithType:UIButtonTypeSystem];

[self.nextKeyboardButton setTitle:NSLocalizedString(@"Next Keyboard", @"Title for 'Next Keyboard' button") forState:UIControlStateNormal];

[self.nextKeyboardButton sizeToFit];

self.nextKeyboardButton.translatesAutoresizingMaskIntoConstraints = NO;

[self.nextKeyboardButton addTarget:self action:@selector(handleInputModeListFromView:withEvent:) forControlEvents:UIControlEventAllTouchEvents];

[self.view addSubview:self.nextKeyboardButton];

[self.nextKeyboardButton.leftAnchor constraintEqualToAnchor:self.view.leftAnchor].active = YES;

[self.nextKeyboardButton.bottomAnchor constraintEqualToAnchor:self.view.bottomAnchor].active = YES;

[self createuI];

}

- (void)textWillChange:(id<UITextInput>)textInput {

// The app is about to change the document's contents. Perform any preparation here.

}

- (void)textDidChange:(id<UITextInput>)textInput {

// The app has just changed the document's contents, the document context has been updated.

UIColor *textColor = nil;

if (self.textDocumentProxy.keyboardAppearance == UIKeyboardAppearanceDark) {

textColor = [UIColor whiteColor];

} else {

textColor = [UIColor blackColor];

}

[self.nextKeyboardButton setTitleColor:textColor forState:UIControlStateNormal];

}

-(void)createuI{

godoit = [UIButton buttonWithType:UIButtonTypeCustom];

godoit.backgroundColor = [UIColor blueColor];

godoit.frame = CGRectMake(60, 100, 100, 100);

[godoit setTitle:@"走你" forState:UIControlStateNormal];

[godoit setTitleColor:[UIColor redColor] forState:UIControlStateNormal];

[godoit addTarget:self action:@selector(doit:) forControlEvents:UIControlEventTouchUpInside];

[self.view addSubview:godoit];

UIButton *btn2 = [UIButton buttonWithType:UIButtonTypeCustom];

btn2.backgroundColor = [UIColor blueColor];

btn2.frame = CGRectMake(200, 100, 100, 100);

[btn2 setTitle:@"变态循环" forState:UIControlStateNormal];

[btn2 setTitleColor:[UIColor redColor] forState:UIControlStateNormal];

[btn2 addTarget:self action:@selector(send:) forControlEvents:UIControlEventTouchUpInside];

[self.view addSubview:btn2];

}

-(void)doit:(UIButton *)sender{

[self.textDocumentProxy insertText:@"\n"];

[self.textDocumentProxy insertText:@"你好我叫基拉"];

}

-(void)send:(UIButton *)sender{

[self.textDocumentProxy insertText:@"\n"];

}

@end

ios 第三方键盘开发 无限刷屏浅析

ios 第三方键盘开发无限刷屏浅析