问题描述
另一个服务已泄漏了IntentReceiver ，我阅读了所有其他问题，但找不到修复程序。我有一个绑定服务的活动（扩展了AppCompatActivity）。该服务扩展了抽象服务类，因为我希望能够根据某些条件创建特定的服务，并在抽象类中保留通用性。
public abstract class DeviceService extends Service {
...
public DeviceService() {
super();
}
@Override
public IBinder onBind(Intent intent) {
Log.e("DeviceService","I'm the service: "+this.toString());
return _binder;
}
public class LocalBinder extends Binder {
DeviceService getService() {
return DeviceService.this;
}
}
...
}
所以服务是：
public class UsbService extends DeviceService implements Runnable{
...
public UsbService() {
super();
}
...
}
该活动在onCreate方法中将服务绑定
public class displayActivity extends AppCompatActivity {
...
private DeviceService deviceService;
private boolean deviceServiceUpdateReceiverRegistered = false;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_display);
Log.d(TAG,"Set up the toolbar.");
Toolbar generalToolbar = (Toolbar) findViewById(R.id.app_toolbar);
setSupportActionBar(generalToolbar);
// Get a support ActionBar corresponding to this toolbar
ActionBar ab = getSupportActionBar();
if(ab!=null)
ab.setdisplayShowTitleEnabled(true);
Intent usbServiceIntent = new Intent(this,UsbService.class);
bindService(usbServiceIntent,(ServiceConnection) deviceServiceConnection,BIND_AUTO_CREATE);
}
在onResume方法中注册broadcastreciver，并在onPause方法中取消注册
@Override
protected void onResume() {
super.onResume();
try {
if(!deviceServiceUpdateReceiverRegistered) {
Log.d(TAG,"onResume. Register the device service broadcaster receiver.");
registerReceiver(deviceServiceUpdateReceiver,deviceServiceUpdateIntentFilter());
deviceServiceUpdateReceiverRegistered = true;
if (deviceService != null) {
try {
// connects to the device
Log.d(TAG,"onResume. Connect to the device.");
deviceService.connect(deviceName);
}
catch (Exception e) {
Log.e(TAG,"Error: "+e.getMessage());
}
}
}
}
catch (Exception e) {
Log.e(TAG,"Could not register broadcast receiver. Error: "+e.getMessage());
}
}
@Override
protected void onPause() {
super.onPause();
try {
Log.d(TAG,"onPause. disconnect the device.");
if(deviceService != null)
deviceService.disconnect();
Log.d(TAG,"onPause. Unregister the device service broadcaster receiver.");
unregisterReceiver(deviceServiceUpdateReceiver);
deviceServiceUpdateReceiverRegistered = false;
}
catch (Exception e) {
Log.e(TAG,"Could not unregister broadcast receiver. Error: "+e.getMessage());
}
}
通过onDestroy方法取消服务
@Override
protected void onDestroy() {
super.onDestroy();
try {
if(deviceServiceUpdateReceiverRegistered) {
Log.d(TAG,"onDestroy. Unregister the device service broadcaster receiver.");
unregisterReceiver(deviceServiceUpdateReceiver);
deviceServiceUpdateReceiverRegistered = false;
}
//deviceService.disconnect();
Log.d(TAG,"onDestroy. Unbind the device service: "+deviceService.toString());
unbindService((ServiceConnection) deviceServiceConnection);
deviceService = null;
}
catch (Exception e) {
Log.e(TAG,"Could not unbind device service. Error: "+e.getMessage());
}
}
和其他部分
private final ServiceConnection deviceServiceConnection = new ServiceConnection() {
@Override
public void onServiceConnected(ComponentName componentName,IBinder service) {
deviceService = ((DeviceService.LocalBinder) service).getService();
if (!deviceService.initialize()) {
Log.e(TAG,"Unable to initialize the device: "+deviceService.getDeviceType());
finish();
}
else {
try {
// Automatically connects to the device upon successful start-up initialization.
Log.d(TAG,"onServiceConnected. Connect to the device.");
deviceService.connect(deviceName);
}
catch (Exception e) {
Log.e(TAG,"Error: "+e.getMessage());
}
}//else
}//onServiceConnected
@Override
public void onServicedisconnected(ComponentName componentName) {
try {
Log.d(TAG,"onServicedisconnected. disconnect from the device.");
deviceService = null;
}
catch (Exception e) {
Log.e(TAG,"Error: "+e.getMessage());
}
}//onServicedisconnected
}; //deviceServiceConnection
一切正常，当我打开应用程序时，将其暂停并恢复。更改手机方向时会弹出此问题。通过调试遵循流程之后，由于重新创建了活动，因此在转到onCreate和onResume之前正确调用了onStop和onDestroy方法。日志是：
2020-09-18 11:48:17.802 31771-31771/live.fita.switchereditor D/displayActivity: Set up the toolbar.
...
2020-09-18 11:48:17.826 31771-31771/live.fita.switchereditor D/displayActivity: onResume. Register the device service broadcaster receiver.
...
2020-09-18 11:48:17.968 31771-31771/live.fita.switchereditor E/DeviceService: I'm the service: live.fita.switchereditor.UsbService@fbc1928
2020-09-18 11:48:18.060 31771-31771/live.fita.switchereditor D/displayActivity: onServiceConnected. Connect to the device.
...
2020-09-18 11:48:57.324 31771-31771/live.fita.switchereditor D/displayActivity: onPause. Unregister the device service broadcaster receiver.
2020-09-18 11:48:57.331 31771-31771/live.fita.switchereditor D/displayActivity: onDestroy. Unbind the device service: live.fita.switchereditor.UsbService@fbc1928
2020-09-18 11:48:57.394 31771-31771/live.fita.switchereditor D/displayActivity: Set up the toolbar.
...
2020-09-18 11:48:57.404 31771-31771/live.fita.switchereditor D/displayActivity: onResume. Register the device service broadcaster receiver.
2020-09-18 11:48:57.425 3831-2144/? I/Inputdispatcher: Focus entered window: Window{a4b7e56 u0 live.fita.switchereditor/live.fita.switchereditor.displayActivity}
2020-09-18 11:48:57.446 31771-31771/live.fita.switchereditor E/DeviceService: I'm the service: live.fita.switchereditor.UsbService@f432de8
2020-09-18 11:48:57.454 31771-31771/live.fita.switchereditor E/ActivityThread: Service live.fita.switchereditor.UsbService has leaked IntentReceiver live.fita.switchereditor.UsbService$1@6209dbe that was originally registered here. Are you missing a call to unregisterReceiver()?
android.app.IntentReceiverLeaked: Service live.fita.switchereditor.UsbService has leaked IntentReceiver live.fita.switchereditor.UsbService$1@6209dbe that was originally registered here. Are you missing a call to unregisterReceiver()?
at android.app.LoadedApk$Receiverdispatcher.<init>(LoadedApk.java:1333)
at android.app.LoadedApk.getReceiverdispatcher(LoadedApk.java:1114)
at android.app.ContextImpl.registerReceiverInternal(ContextImpl.java:1412)
at android.app.ContextImpl.registerReceiver(ContextImpl.java:1385)
at android.app.ContextImpl.registerReceiver(ContextImpl.java:1373)
at android.content.Contextwrapper.registerReceiver(Contextwrapper.java:603)
at live.fita.switchereditor.UsbService.initialize(UsbService.java:52)
at live.fita.switchereditor.displayActivity$2.onServiceConnected(displayActivity.java:316)
at android.app.LoadedApk$Servicedispatcher.doConnected(LoadedApk.java:1634)
at android.app.LoadedApk$Servicedispatcher$runconnection.run(LoadedApk.java:1663)
at android.os.Handler.handleCallback(Handler.java:789)
at android.os.Handler.dispatchMessage(Handler.java:98)
at android.os.Looper.loop(Looper.java:251)
at android.app.ActivityThread.main(ActivityThread.java:6589)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.Zygote$MethodAndArgsCaller.run(Zygote.java:240)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:767)
2020-09-18 11:48:57.472 31771-31771/live.fita.switchereditor D/displayActivity: onServiceConnected. Connect to the device.
您可以看到已注册了另一个服务，但即使通过调试也无法理解它的来源。任何想法？ 谢谢
解决方法
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