android实现虚拟按键实例

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上代码：

Java代码  
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  
                  
            }  
        });  
          
          
    }  
}  

上layout

Java代码  
<?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>  

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