Android - how to set the wallpaper image

Question

Is it possible to set the android wallpaper image programatically? I'd like to create a service that downloads an image from the web and updates the home screen wallpaper periodically.

Tormentor

#2205592 click this link I write there sample code. – Anuria

Answer 1

From this page on the developer site:

public void setStream (InputStream data)

Change the current system wallpaper to a specific byte stream. The give InputStream is copied into persistent storage and will now be used as the wallpaper. Currently it must be either a JPEG or PNG image.

Verdure

Note that API first appeared in 2.0; if you want to support older versions, use one of the original APIs on Context: developer.android.com/reference/android/content/… – Baldachin

i tried same thing for videoistream...it's not working ...for imageurl it work fine...any idea/suggestion here. – Nunatak

Answer 2

If you have image URL then use

WallpaperManager wpm = WallpaperManager.getInstance(context);
InputStream ins = new URL("absolute/path/of/image").openStream();
wpm.setStream(ins);

If you have image URI then use

WallpaperManager wpm = WallpaperManager.getInstance(context);
wpm.setResource(Uri.of.image);

In your manifest file:

<uses-permission android:name="android.permission.SET_WALLPAPER"></uses-permission>

Cockatoo

I tried same things for video stream..but I am getting --- "SkImageDecoder::Factory returned null" error...any suggestion here. – Nunatak

is it possible to set live wallpaper as an default wallpaper from application. – Nunatak

It must be a new Questions.. anyways what do you mean by default wallpaper? – Cockatoo

Answer 3

If you have bitmap of image than you will add this function to set as wallpaper:

  public void SetBackground(int Url) {

    try {
        File file = new File("/sdcard/sampleimage");
        Bitmap bitmap = BitmapFactory.decodeResource(getResources(), Url);
        bitmap.compress(CompressFormat.JPEG, 80, new FileOutputStream(file));
        Context context = this.getBaseContext();
        context.setWallpaper(bitmap);            
        Toast.makeText(getApplicationContext(), "Wallpaper has been set",             Toast.LENGTH_SHORT).show();            
    } catch (MalformedURLException e) {
        e.printStackTrace();
    } catch (IOException e) {
        e.printStackTrace();
    }         
}

you should add permission for this

<uses-permission android:name="android.permission.SET_WALLPAPER"></uses-permission>

hope it will work

Mariquilla

Answer 4

OK Here's how to do it before api 2.0:

You need to call getApplicationContext.setWallpaper() and pass it the bitmap.

This method is now deprecated. See ChrisF's answer for details on the new method.

Lecher