Scale application icons

Closes #2095

CHANGELOG.md

@@ -21,6 +21,9 @@ Changelog
 
 **Next release**
 
+* Prevent accidental application icon/name clicks ([issue](/../../issues/2095))
+* Scale application icons ([issue](/../../issues/2095))
+
 [Open issues](https://github.com/M66B/XPrivacy/issues?state=open)
 
 **Version 3.5.8 BETA**

src/biz/bokhorst/xprivacy/ActivityMain.java

@@ -1988,7 +1988,8 @@ else if (state == ApplicationInfoEx.STATE_SHARED)
 								getThemed(R.attr.color_state_restricted)));
 
 					// Display icon
-					holder.imgIcon.setImageDrawable(xAppInfo.getIcon(ActivityMain.this));
+					holder.imgIcon.setImageBitmap(xAppInfo.getIconBitmap(ActivityMain.this));
+					// holder.imgIcon.setImageDrawable(xAppInfo.getIcon(ActivityMain.this));
 					holder.imgIcon.setVisibility(View.VISIBLE);
 
 					// Display on demand

src/biz/bokhorst/xprivacy/ApplicationInfoEx.java

@@ -17,12 +17,17 @@
 import android.content.pm.PackageInfo;
 import android.content.pm.PackageManager;
 import android.content.pm.PackageManager.NameNotFoundException;
+import android.content.res.Resources;
+import android.graphics.Bitmap;
+import android.graphics.BitmapFactory;
 import android.graphics.Color;
 import android.graphics.drawable.ColorDrawable;
 import android.graphics.drawable.Drawable;
 import android.text.TextUtils;
+import android.util.DisplayMetrics;
 import android.util.Log;
 import android.util.SparseArray;
+import android.util.TypedValue;
 
 @SuppressLint("DefaultLocale")
 public class ApplicationInfoEx implements Comparable<ApplicationInfoEx> {
@@ -155,6 +160,48 @@ public Drawable getIcon(Context context) {
 			return new ColorDrawable(Color.TRANSPARENT);
 	}
 
+	public Bitmap getIconBitmap(Context context) {
+		if (mMapAppInfo.size() > 0) {
+			try {
+				final ApplicationInfo appInfo = mMapAppInfo.firstEntry().getValue();
+				final Resources resources = context.getPackageManager().getResourcesForApplication(appInfo);
+
+				final BitmapFactory.Options options = new BitmapFactory.Options();
+				options.inJustDecodeBounds = true;
+				BitmapFactory.decodeResource(resources, appInfo.icon, options);
+
+				final int pixels = Math.round(dipToPixels(context, 48));
+				options.inSampleSize = calculateInSampleSize(options, pixels, pixels);
+				options.inJustDecodeBounds = false;
+				return BitmapFactory.decodeResource(resources, appInfo.icon, options);
+			} catch (NameNotFoundException ex) {
+				Util.bug(null, ex);
+				return null;
+			}
+		} else
+			return null;
+	}
+
+	private static float dipToPixels(Context context, float dipValue) {
+		DisplayMetrics metrics = context.getResources().getDisplayMetrics();
+		return TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, dipValue, metrics);
+	}
+
+	private static int calculateInSampleSize(BitmapFactory.Options options, int reqWidth, int reqHeight) {
+		final int height = options.outHeight;
+		final int width = options.outWidth;
+		int inSampleSize = 1;
+
+		if (height > reqHeight || width > reqWidth) {
+			final int halfHeight = height / 2;
+			final int halfWidth = width / 2;
+			while ((halfHeight / inSampleSize) > reqHeight && (halfWidth / inSampleSize) > reqWidth)
+				inSampleSize *= 2;
+		}
+
+		return inSampleSize;
+	}
+
 	public boolean hasInternet(Context context) {
 		if (mInternet == null) {
 			mInternet = false;