InputConnection模拟文字输入

1.自定义输入法

参考资料：http://blog.csdn.net/nicolelili1/article/details/78723259

2.在继承了类InputMethodService的方法onCreateInputView()中注册广播接收者

	@Override
	public View onCreateInputView() {
		View mkeyView = LayoutInflater.from(this).inflate(R.layout.keyboardview, null);
		keyboardUtil = new KeyboardUtil(this, (KeyboardView) mkeyView.findViewById(R.id.keyboardView));

		registReceiver();
		return mkeyView;
	}

public void registReceiver(){
		receiveTextReceiver = new ReceiveTextReceiver();
		IntentFilter intentFilter = new IntentFilter();
		intentFilter.addAction(BROADCAST_ACTION);
		myImeService.registerReceiver(receiveTextReceiver, intentFilter);
	}

3.接收到广播后调用InputConnection的commitText方法输入字符

  private class ReceiveTextReceiver extends BroadcastReceiver {



        @Override
        public void onReceive(Context context, Intent intent) {
            String str = intent.getStringExtra("text");
            InputConnection ic = myImeService.getCurrentInputConnection();
            ic.commitText(str,str.length());
        }
    }

4.onCreateInputView需要在键盘被显示出来的时候才会被调用，为了确保广播被注册，当应用启动的时候，手动调用代码显示输入法

  InputMethodManager imm = (InputMethodManager)context.getSystemService(Context.INPUT_METHOD_SERVICE);
                        boolean isOpen=imm.isActive();//isOpen若返回true，则表示输入法打开
                        if(!isOpen){
                            imm.toggleSoftInput(0, InputMethodManager.HIDE_NOT_ALWAYS);
                        }

5.需要输入文字时发送广播，参数为所需要输入的文字

    private void sendBroadCast(String str){
        Intent intent = new Intent();
        intent.setAction(BROADCAST_ACTION);
        intent.putExtra("text", str);
        sendBroadcast(intent);
    }

6.运行结果

环境：当输入命令后，调用发送广播的方法后，将文字追加到当前光标聚焦的文本框中

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