Question

I run a service when the device boots and that service just loads an image from sd card and makes it wallpaper. When the device starts i get an error. But after the sd card finishes the loading the service sets the image as wallpaper fine.

<action android:name="android.intent.action.BOOT_COMPLETED" /> 

I start the service like this ^ and i want to ask if there is a way to start the service after sd card finishes loading.

Answer 1

You can wait for the SD card to load. One way is to use the android.intent.action.MEDIA_MOUNTED action.

Another way is to poll up to some maximum and give up if not mounted:

String mountState = Environment.getExternalStorageState();
int tries = 15;
do {
    if (!mountState.equals(Environment.MEDIA_MOUNTED)) {
        Log.i(LOG_TAG, "External media present but not mounted. Waiting 15 seconds for mount...");
        try {
            Thread.sleep(1000); // sleep for a second
        } catch (InterruptedException e) {
            Log.w(LOG_TAG, "Interrupted!");
            break;
        }
        mountState = Environment.getExternalStorageState();
    } else {
        Log.i(LOG_TAG, "External media mounted");
        break;
    }
} while (--tries > 0);
if (tries == 0) // give up

Hope this helps.