Prevent users from blocking certain system notifications. (21c30548) · Commits · e / os / android_frameworks_base

packages/SettingsLib/src/com/android/settingslib/Utils.java

+33 −0

Original line number	Diff line number	Diff line
		@@ -2,7 +2,11 @@ package com.android.settingslib;

		import android.content.Context;
		import android.content.Intent;
		import android.content.pm.PackageInfo;
		import android.content.pm.PackageManager;
		import android.content.pm.PackageManager.NameNotFoundException;
		import android.content.pm.UserInfo;
		import android.content.pm.Signature;
		import android.content.res.Resources;
		import android.graphics.Bitmap;
		import android.graphics.BitmapFactory;
		@@ -138,4 +142,33 @@ public class Utils {

		return statusString;
		}

		/**
		* Determine whether a package is a "system package", in which case certain things (like
		* disabling notifications or disabling the package altogether) should be disallowed.
		*/
		public static boolean isSystemPackage(PackageManager pm, PackageInfo pkg) {
		if (sSystemSignature == null) {
		sSystemSignature = new Signature[]{ getSystemSignature(pm) };
		}
		return sSystemSignature[0] != null && sSystemSignature[0].equals(getFirstSignature(pkg));
		}

		private static Signature[] sSystemSignature;

		private static Signature getFirstSignature(PackageInfo pkg) {
		if (pkg != null && pkg.signatures != null && pkg.signatures.length > 0) {
		return pkg.signatures[0];
		}
		return null;
		}

		private static Signature getSystemSignature(PackageManager pm) {
		try {
		final PackageInfo sys = pm.getPackageInfo("android", PackageManager.GET_SIGNATURES);
		return getFirstSignature(sys);
		} catch (NameNotFoundException e) {
		}
		return null;
		}
		}

packages/SystemUI/src/com/android/systemui/statusbar/NotificationGuts.java

+21 −4

Original line number	Diff line number	Diff line
		@@ -16,10 +16,11 @@

		package com.android.systemui.statusbar;

		import android.annotation.IdRes;
		import android.app.INotificationManager;
		import android.app.Notification;
		import android.content.Context;
		import android.content.pm.PackageInfo;
		import android.content.pm.PackageManager;
		import android.graphics.Canvas;
		import android.graphics.drawable.Drawable;
		import android.os.RemoteException;
		@@ -28,13 +29,12 @@ import android.service.notification.NotificationListenerService;
		import android.service.notification.StatusBarNotification;
		import android.util.AttributeSet;
		import android.view.View;
		import android.widget.FrameLayout;
		import android.widget.LinearLayout;
		import android.widget.RadioButton;
		import android.widget.RadioGroup;
		import android.widget.SeekBar;
		import android.widget.TextView;

		import com.android.settingslib.Utils;
		import com.android.systemui.R;

		/**
		@@ -123,10 +123,27 @@ public class NotificationGuts extends LinearLayout {
		final TextView topicSummary = ((TextView) row.findViewById(R.id.summary));
		final TextView topicTitle = ((TextView) row.findViewById(R.id.title));
		mSeekBar = (SeekBar) row.findViewById(R.id.seekbar);
		mSeekBar.setMax(4);
		boolean systemApp = false;
		try {
		final PackageManager pm = BaseStatusBar.getPackageManagerForUser(
		getContext(), sbn.getUser().getIdentifier());
		final PackageInfo info =
		pm.getPackageInfo(sbn.getPackageName(), PackageManager.GET_SIGNATURES);
		systemApp = Utils.isSystemPackage(pm, info);
		} catch (PackageManager.NameNotFoundException e) {
		// unlikely.
		}
		final int minProgress = systemApp ?
		NotificationListenerService.Ranking.IMPORTANCE_LOW
		: NotificationListenerService.Ranking.IMPORTANCE_NONE;
		mSeekBar.setMax(NotificationListenerService.Ranking.IMPORTANCE_MAX);
		mSeekBar.setOnSeekBarChangeListener(new SeekBar.OnSeekBarChangeListener() {
		@Override
		public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) {
		if (progress < minProgress) {
		seekBar.setProgress(minProgress);
		progress = minProgress;
		}
		updateTitleAndSummary(progress);
		if (fromUser) {
		if (appUsesTopics) {