get full res icon

gistfile2.txt

```Java

  private Bitmap getFullResIcon(String packageName) throws PackageManager.NameNotFoundException {
    return getFullResIcon(pm.getApplicationInfo(packageName, 0));
  }

  private Bitmap getFullResIcon(ApplicationInfo info) {
    try {
      Resources resources = pm.getResourcesForApplication(info.packageName);
      if (resources != null) {
        int iconId = info.icon;
        if (iconId != 0) {
          return getFullResIcon(resources, iconId);
        }
      }
    } catch (PackageManager.NameNotFoundException ignored) {
    }
    return getFullResDefaultActivityIcon();
  }

  private Bitmap getFullResIcon(Resources resources, int iconId) {
    final Drawable drawable;
    try {
      if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP_MR1) {
        drawable = resources.getDrawableForDensity(iconId, dpi, null);
      } else if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.ICE_CREAM_SANDWICH_MR1) {
        drawable = resources.getDrawableForDensity(iconId, dpi);
      } else {
        drawable = resources.getDrawable(iconId);
      }
    } catch (Resources.NotFoundException e) {
      return getFullResDefaultActivityIcon();
    }
    return drawableToBitmap(drawable);
  }

  private Bitmap getFullResDefaultActivityIcon() {
    if (defaultAppIcon == null) {
      Drawable drawable;
      if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.ICE_CREAM_SANDWICH_MR1) {
        drawable = Resources.getSystem().getDrawableForDensity(
            android.R.mipmap.sym_def_app_icon, dpi);
      } else {
        drawable = Resources.getSystem().getDrawable(
            android.R.drawable.sym_def_app_icon);
      }
      defaultAppIcon = drawableToBitmap(drawable);
    }
    return defaultAppIcon;
  }
  
  ```