我正在获取应用程序启动器图标,如下所示:
resolveInfo.activityInfo.loadIcon(packageManager)
但在Android 8.0 Oreo中,由于自适应图标的原因,这行代码返回空图标。我该如何检索应用程序的自适应图标呢?谢谢。
public static class AppIconHelperV26 {
@RequiresApi(api = Build.VERSION_CODES.O)
public static Bitmap getAppIcon(PackageManager mPackageManager, String packageName) {
try {
Drawable drawable = mPackageManager.getApplicationIcon(packageName);
if (drawable instanceof BitmapDrawable) {
return ((BitmapDrawable) drawable).getBitmap();
} else if (drawable instanceof AdaptiveIconDrawable) {
Drawable backgroundDr = ((AdaptiveIconDrawable) drawable).getBackground();
Drawable foregroundDr = ((AdaptiveIconDrawable) drawable).getForeground();
Drawable[] drr = new Drawable[2];
drr[0] = backgroundDr;
drr[1] = foregroundDr;
LayerDrawable layerDrawable = new LayerDrawable(drr);
int width = layerDrawable.getIntrinsicWidth();
int height = layerDrawable.getIntrinsicHeight();
Bitmap bitmap = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888);
Canvas canvas = new Canvas(bitmap);
layerDrawable.setBounds(0, 0, canvas.getWidth(), canvas.getHeight());
layerDrawable.draw(canvas);
return bitmap;
}
} catch (PackageManager.NameNotFoundException e) {
e.printStackTrace();
}
return null;
}
}