我正在后台运行服务，服务将停止并开始单击切换按钮。服务在第一个 Activity 中启动，并在单击切换按钮时在另一个 Activity 中停止服务。当我运行应用程序服务时在第一个 Activity 中自动启动，我在第一个 Activity 的 onCreate() 方法中启动，另一个 Activity 切换按钮状态已经处于状态但是当我切换按钮将关闭服务停止但是当我回到第一个 Activity 服务再次启动。请任何人都可以帮助我。这是我的代码
public class MyService extends Service
{
private static final String TAG = "MyService";
MediaPlayer player;
private final String StrMyService="myservice";
@Override
public IBinder onBind(Intent arg0) {
// TODO Auto-generated method stub
return null;
}
@Override
public void onCreate() {
Toast.makeText(this, "My Service Created", Toast.LENGTH_LONG).show();
Log.d(TAG, "onCreate");
player = MediaPlayer.create(this, R.raw.braincandy);
player.setLooping(false); // Set looping
}
@Override
public void onDestroy() {
Toast.makeText(this, "My Service Stopped", Toast.LENGTH_LONG).show();
Log.d(TAG, "onDestroy");
player.stop();
}
@Override
public void onStart(Intent intent, int startid) {
Toast.makeText(this, "My Service Started", Toast.LENGTH_LONG).show();
Log.d(TAG, "onStart");
player.start();
}
}
public class Service_Demo extends Activity implements OnClickListener
{
private static final String TAG = "ServicesDemo";
@Override
public void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
System.out.println("In OnCreate(");
startService(new Intent(this, MyService.class));
}
}
public class Toggle_Activity extends Activity
{
ToggleButton tgButton;
private boolean isService=false;
private String strService;
public final String service_Prefs="servicePrefs";
private static final String StrMyService = "zdf";
public void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.toggle);
final SharedPreferences servicePrefs=this.getSharedPreferences("Service_Prefs",MODE_WORLD_READABLE);
strService=servicePrefs.getString(StrMyService , "myservice");
Log.e("",""+strService);
final boolean mBool = servicePrefs.getBoolean("myservice", true);
Log.e("Boolean Value mBool","="+mBool);
Boolean b = mBool;
Log.e("Update pref", b.toString());
tgButton = (ToggleButton)findViewById(R.id.toggleButton);
tgButton.setChecked(mBool);
final boolean mBool1 = servicePrefs.getBoolean("myservice", false);
final Boolean c = mBool1;
Log.e("Update pref", c.toString());
tgButton=(ToggleButton)findViewById(R.id.toggleButton);
tgButton.setOnClickListener(new OnClickListener()
{
@Override
public void onClick(View v)
{
// TODO Auto-generated method stub
if(tgButton.isChecked())
{
startService(new Intent(Toggle_Activity.this , MyService.class));
System.out.println("Service is started in togglr button");
}
else
{
stopService(new Intent(Toggle_Activity.this,MyService.class));
System.out.println("Service is stopped in togglr button");
}
}
});
}
}
最佳答案
在第一个 Activity 中，您将 startService(new Intent(this, MyService.class)) 放在 onresume 中 来自oncreate
关于java - 如何在 Android 中使用切换按钮停止后台服务？，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/16536810/