Android 模拟MotionEvent事件 触发输入法

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical">

<Button android:id="@+id/ButtonIME"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:padding="5px"
android:text="弹出软键盘输入法" />

<EditText android:id="@+id/EditTextIME"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:padding="5px"
android:text="显示输入法键盘"/>

</LinearLayout>

package org.shuxiang.test;

import android.app.Activity;
import android.os.Bundle;
import android.os.Handler;
import android.os.Looper;
import android.os.Message;
import android.os.SystemClock;
import android.view.MotionEvent;
import android.view.View;
import android.view.Window;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.EditText;

public class ShowIME  extends Activity
{
private EditText et;
private Button bt;
private static Handler messageHandler;

@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
requestWindowFeature(Window.FEATURE_NO_TITLE);
setContentView(R.layout.showime);

bt = (Button) findViewById(R.id.ButtonIME);
bt.setOnClickListener(new OnClickListener()
{
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
et.dispatchTouchEvent(MotionEvent.obtain(SystemClock.uptimeMillis(), SystemClock.uptimeMillis(), MotionEvent.ACTION_DOWN, et.getLeft()+5, et.getTop()+5, 0));
et.dispatchTouchEvent(MotionEvent.obtain(SystemClock.uptimeMillis(), SystemClock.uptimeMillis(), MotionEvent.ACTION_UP, et.getLeft()+5, et.getTop()+5, 0));
}
});
et = (EditText) findViewById(R.id.EditTextIME);

Looper looper = Looper.myLooper();
messageHandler = new MessageHandler(looper);
//此处的作用是延迟1秒，然后激活点击事件
//欢迎转载并说明转自：http://blog.csdn.net/aminfo/article/details/7887964
new Thread()
{
@Override
public void run()
{
synchronized(this)
{
try
{
wait(1000); //1秒
}
catch (InterruptedException e)
{
// TODO Auto-generated catch block
e.printStackTrace();
}
}
Message message = Message.obtain();
message.what = 1;
messageHandler.sendMessage(message);
}
}.start();
}

class MessageHandler extends Handler
{
public MessageHandler(Looper looper)
{
super(looper);
}
@Override
public void handleMessage(Message msg)
{
Bundle bundle = msg.getData();
switch (msg.what)
{
case 1:
//模拟点击按钮
bt.dispatchTouchEvent(MotionEvent.obtain(SystemClock.uptimeMillis(), SystemClock.uptimeMillis(), MotionEvent.ACTION_DOWN, et.getLeft()+5, et.getTop()+5, 0));
bt.dispatchTouchEvent(MotionEvent.obtain(SystemClock.uptimeMillis(), SystemClock.uptimeMillis(), MotionEvent.ACTION_UP, et.getLeft()+5, et.getTop()+5, 0));

//以下代码模拟点击文本编辑框
//et.dispatchTouchEvent(MotionEvent.obtain(SystemClock.uptimeMillis(), SystemClock.uptimeMillis(), MotionEvent.ACTION_DOWN, et.getLeft()+5, et.getTop()+5, 0));
//et.dispatchTouchEvent(MotionEvent.obtain(SystemClock.uptimeMillis(), SystemClock.uptimeMillis(), MotionEvent.ACTION_UP, et.getLeft()+5, et.getTop()+5, 0));
break;
default:
break;
}

}
}
}