android兑现虚拟按键实例

package com.tcl.testandroid;import android.app.Activity;import android.app.Instrumentation;import android.os.Bundle;import android.os.Handler;import android.view.KeyEvent;import android.view.View;import android.view.View.OnClickListener;import android.widget.Button;import android.widget.EditText;import android.widget.TextView;public class TestAndroidActivity extends Activity {	private Handler mhHandler = new Handler();	private Instrumentation in =new Instrumentation();    /** Called when the activity is first created. */    @Override    public void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.main);        setTheme(android.R.style.Theme_Dialog);        final Button button = (Button) findViewById(R.id.button1);        final EditText editText = (EditText) findViewById(R.id.editText);        button.setOnClickListener(new OnClickListener() {						@Override			public void onClick(View v) {				editText.requestFocus();				new Thread(new Runnable() {										@Override					public void run() {						// TODO Auto-generated method stub						in.sendKeyDownUpSync(KeyEvent.KEYCODE_F);						in.sendKeyDownUpSync(KeyEvent.KEYCODE_U);						in.sendKeyDownUpSync(KeyEvent.KEYCODE_C);						in.sendKeyDownUpSync(KeyEvent.KEYCODE_K);						mhHandler.post(new Runnable() {														@Override							public void run() {								// TODO Auto-generated method stub								button.requestFocus();							}						});					}				}).start();								// TODO Auto-generated method stub							}		});                    }}

<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"	android:orientation="vertical" android:layout_width="wrap_content"	android:layout_height="wrap_content">	<Button android:text="Button" android:id="@+id/button1"		android:layout_width="wrap_content" android:layout_height="wrap_content"></Button>	<EditText android:id="@+id/editText" android:layout_height="wrap_content"		android:layout_width="192dp" /></LinearLayout>