Aide Android IDE Hintergründe Hilfe

1public class ImageUtils
2{
3
4 public static Drawable scaleDrawable(Drawable drawable, int width, int height, boolean filter) throws Exception {
5 Drawable d = drawable;
6 int w = width;
7 int h = height;
8 boolean f = filter;
9
10 Bitmap b = drawableToBitmap(d);
11 Bitmap sB = Bitmap.createScaledBitmap(b, w, h, f);
12
13 return new BitmapDrawable(s;
14 }
15
16 public static Drawable cropDrawable(Drawable drawable, int x, int y, int width, int height, boolean filter) throws Exception {
17 Drawable d = drawable;
18 int sX = x;
19 int sY = y;
20 int w = width;
21 int h = height;
22 boolean f = filter;
23
24 Bitmap b = drawableToBitmap(d);
25 Bitmap sB = Bitmap.createBitmap(b, sX, sY, w, h, new Matrix(), f);
26
27 return new BitmapDrawable(s;
28 }
29
30 public static Bitmap drawableToBitmap(Drawable drawable) {
31 if (drawable instanceof BitmapDrawable) {
32 return ((BitmapDrawable)drawable).getBitmap();
33 }
34
35 Bitmap bitmap = Bitmap.createBitmap(drawable.getIntrinsicWidth(), drawable.getIntrinsicHeight(), Bitmap.Config.ARGB_8888);
36 Canvas canvas = new Canvas(bitmap);
37 drawable.setBounds(0, 0, canvas.getWidth(), canvas.getHeight());
38 drawable.draw(canvas);
39 return bitmap;
40 }
41
42}

1public void setBackground(Drawable d)
2 {
3 try
4 {
5 WallpaperManager wm = WallpaperManager.getInstance(c);
6 View dv = getWindow().getDecorView();
7
8 getWindow().setBackgroundDrawable(ImageUtils.cropDrawable(d, 0, 0, dv.getWidth(), dv.getHeight(), true));
9 }
10 catch (Exception e)
11 {
12 Toast.makeText(c, getResources().getString(R.string.exception_background) + " - " + e.getMessage(), Toast.LENGTH_SHORT).show();
13 }
14 }

1public void setViewBackground(View v, Drawable d)
2 {
3 try
4 {
5v.setBackgroundDrawable(ImageUtils.cropDrawable(d, 0, 0, v.getWidth(), v.getHeight(), true));
6 }
7 catch (Exception e)
8 {
9 Toast.makeText(c, getResources().getString(R.string.exception_background) + " - " + e.getMessage(), Toast.LENGTH_SHORT).show();
10 }
11 }

1new Thread() {
2public void run () {
3try {
4//200 millisekunden warten:
5sleep (200);
6//im ui-thread ausführen, damit die App nicht abstürzt:
7runOnUiThread (new Runnable() {
8public void run () {
9setBackground (deinBild);
10
11// oder:
12
13setViewBackground(deinView, deinBild);
14}
15});
16} catch (Exception e) {
17//dann halt net
18}
19}
20}.start();