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我正在使用 IntentService 在后台更改墙纸。它在收到推送通知时被调用。如果在应用程序打开时收到通知，下面的代码可以正常工作。但是如果应用程序被关闭/杀死（通过在菜单按钮的帮助下将其刷掉）则不起作用

@Override
protected void onHandleIntent(Intent intent) {

    //Toast.makeText(this, "Intent", Toast.LENGTH_SHORT).show();
    sharedpreferences = getSharedPreferences(MyPREFERENCES, Context.MODE_PRIVATE);

    String imageUrl = intent.getExtras().getString("imageUrl");

    try {
        URL url;
        try {
            WallpaperManager myWallpaperManager = WallpaperManager
                    .getInstance(this);


            url = new URL(
                    imageUrl);
            Bitmap bmp = BitmapFactory.decodeStream(url
                    .openConnection().getInputStream());
            myWallpaperManager.setBitmap(bmp);


        } catch (MalformedURLException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        } catch (IOException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
    } catch (Exception e) {
        e.printStackTrace();
    }

    PushReceiver.completeWakefulIntent(intent);
}

打开应用程序时工作正常。关闭/杀死时，它无法在以下位置下载图像BitmapFactory.decodeStream(url.openConnection().getInputStream())

下面是堆栈跟踪。

我正在使用 Mi3 Xiaomi 设备（不确定这是否有帮助）

应用拥有 android.permission.INTERNET、android.permission.ACCESS_NETWORK_STATE 的权限

W/System.err: java.net.ConnectException: failed to connect to sgsbirds.com/182.50.149.129 (port 80): connect failed: ECONNREFUSED (Connection refused)
W/System.err:     at libcore.io.IoBridge.connect(IoBridge.java:114)
W/System.err:     at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:192)
W/System.err:     at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:460)
W/System.err:     at java.net.Socket.connect(Socket.java:833)
W/System.err:     at com.android.okhttp.internal.Platform.connectSocket(Platform.java:152)
W/System.err:     at com.android.okhttp.Connection.connect(Connection.java:101)
W/System.err:     at com.android.okhttp.internal.http.HttpEngine.connect(HttpEngine.java:294)
W/System.err:     at com.android.okhttp.internal.http.HttpEngine.sendSocketRequest(HttpEngine.java:255)
W/System.err:     at com.android.okhttp.internal.http.HttpEngine.sendRequest(HttpEngine.java:206)
W/System.err:     at com.android.okhttp.internal.http.HttpURLConnectionImpl.execute(HttpURLConnectionImpl.java:345)
W/System.err:     at com.android.okhttp.internal.http.HttpURLConnectionImpl.getResponse(HttpURLConnectionImpl.java:296)
W/System.err:     at com.android.okhttp.internal.http.HttpURLConnectionImpl.getInputStream(HttpURLConnectionImpl.java:179)
W/System.err:     at org.dycusa.sgs.wallpapers.IntentServiceManager.onHandleIntent(IntentServiceManager.java:111)
W/System.err:     at android.app.IntentService$ServiceHandler.handleMessage(IntentService.java:65)
W/System.err:     at android.os.Handler.dispatchMessage(Handler.java:102)
W/System.err:     at android.os.Looper.loop(Looper.java:136)
W/System.err:     at android.os.HandlerThread.run(HandlerThread.java:61)
W/System.err: Caused by: libcore.io.ErrnoException: connect failed: ECONNREFUSED (Connection refused)
W/System.err:     at libcore.io.Posix.connect(Native Method)
W/System.err:     at libcore.io.BlockGuardOs.connect(BlockGuardOs.java:85)
W/System.err:     at libcore.io.IoBridge.connectErrno(IoBridge.java:127)
W/System.err:     at libcore.io.IoBridge.connect(IoBridge.java:112)
W/System.err:   ... 16 more
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1 回答 1

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该应用程序的“限制后台数据”设置已关闭。我打开它，一切都开始工作了。

@MateuszHerych 很受欢迎。

于 2016-01-19T18:02:11.850 回答