![](/img/trans.png)
[英]IntentService's onDestroy method getting called straight after onHandleIntent
[英]Method onHandleIntent() does not get called
经过几个小时的研究,我终于咨询了官方的帮助。 为什么不调用onHandleIntent()
? 这里有什么问题吗?
在主要活动onCreate()
:
mService = new Intent(context, xyz.class);
startService(mService);
发布它。 调用onStartCommand()
,但不onHandleIntent()
package com.autoalbumwallaperplus;
import android.app.IntentService;
import android.content.Intent;
import android.widget.Toast;
public class xyz extends IntentService {
public xyz() {
super("bmp");
}
@Override
public int onStartCommand(Intent intent, int flags, int startId) {
Toast.makeText(this,"onStartCommand works!", Toast.LENGTH_SHORT).show();
return super.onStartCommand(intent,flags,startId);
}
@Override
protected void onHandleIntent(Intent workIntent) {
Toast.makeText(this,"onHandleIntent works!", Toast.LENGTH_SHORT).show();
}
}
这是在OnHandleIntent中
String imagepath = workIntent.getStringExtra("String");
Toast.makeText(this, "it works" , Toast.LENGTH_SHORT).show();
DisplayMetrics displayMetrics = new DisplayMetrics();
WindowManager hi = ((WindowManager) getBaseContext().getSystemService(Context.WINDOW_SERVICE));
int height = displayMetrics.heightPixels;
int width = displayMetrics.widthPixels << 2;
// ... First decode with inJustDecodeBounds=true to check dimensions
final BitmapFactory.Options options = new BitmapFactory.Options();
options.inJustDecodeBounds = true;
Bitmap decodedSampleBitmap = BitmapFactory.decodeFile(imagepath, options);
// ... Calculate inSampleSize
options.inSampleSize = calculateInSampleSize(options, width, height);
// ... Decode bitmap with inSampleSize set
options.inJustDecodeBounds = false;
decodedSampleBitmap = BitmapFactory.decodeFile(imagepath, options);
// ... Set Wallpaper
//Context context = getApplicationContext();
WallpaperManager wm = WallpaperManager.getInstance(this);
try {
wm.setBitmap(decodedSampleBitmap);
} catch (IOException e) {
}
可能是你的意图服务没有启动,因为你正在重写onStartCommand()
方法,因为android文档说:
“你不应该为
(onStartCommand())
覆盖这个方法(onStartCommand())
。而是覆盖onHandleIntent(Intent)
,系统在IntentService收到启动请求时调用它。”
希望这对你有所帮助
声明:本站的技术帖子网页,遵循CC BY-SA 4.0协议,如果您需要转载,请注明本站网址或者原文地址。任何问题请咨询:yoyou2525@163.com.