AVD 说“不幸的是，服务已停止”，其中服务是我的应用程序的名称。请告诉我哪里出错了。我已经发布了两个文件的代码：
MainActivity.java：
public class MainActivity extends Activity {
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Button start, stop;
start = (Button) findViewById(R.id.Button1);
stop = (Button) findViewById(R.id.Button2);
start.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Intent service = new Intent(MainActivity.this, MyService.class);
startService(service);
}
});
stop.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Intent name = new Intent(MainActivity.this, MyService.class);
stopService(name);
}
});
}
}
我的服务.java：
public class MyService extends Service {
@Override
public IBinder onBind(Intent arg0) {
return null;
}
@Override
public void onCreate() {
super.onCreate();
}
@Override
public int onStartCommand(Intent intent, int flags, int startId) {
new AlertDialog.Builder(this).setTitle("Argh").setMessage("Watch out!").setNeutralButton("Close", null).show();
return 0;
}
@Override
public void onDestroy() {
super.onDestroy();
}
}
活动主.xml：
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:paddingBottom="@dimen/activity_vertical_margin"
android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin"
tools:context=".MainActivity" >
<Button
android:id="@+id/Button1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_alignParentTop="true"
android:layout_marginLeft="20dp"
android:text="Play" />
<Button
android:id="@+id/Button2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignBaseline="@+id/Button1"
android:layout_alignBottom="@+id/Button1"
android:layout_centerHorizontal="true"
android:text="Stop" />
</RelativeLayout>
这就是 LogCat 所说的：
04-18 18:48:48.724: E/Trace(852): error opening trace file: No such file or directory (2)
04-18 18:48:49.683: D/gralloc_goldfish(852): Emulator without GPU emulation detected.
单击开始按钮后会显示错误消息。
提前致谢 ：）