Notification settings updates

- Hide channels when a group is blocked
- Update importance strings
- Allow app blocking from 'recently seen'

Test: RoboSettingsTests
Fixes: 72879584
Fixes: 72882969
Fixes: 72831483
Change-Id: I99e001d3eb9eef52251cd50da191d33923335fcf

src/com/android/settings/notification/NotificationAppPreference.java

@@ -0,0 +1,131 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.android.settings.notification;
+
+import android.content.Context;
+import android.support.v7.preference.PreferenceViewHolder;
+import android.text.TextUtils;
+import android.util.AttributeSet;
+import android.view.View;
+import android.widget.ProgressBar;
+import android.widget.Switch;
+
+import com.android.settings.R;
+import com.android.settingslib.RestrictedLockUtils;
+import com.android.settingslib.TwoTargetPreference;
+
+/**
+ * Shows an app icon, title and summary. Has a second switch touch target.
+ */
+public class NotificationAppPreference extends TwoTargetPreference {
+
+    private int mProgress;
+    private boolean mProgressVisible;
+    private Switch mSwitch;
+    private boolean mChecked;
+    private boolean mEnableSwitch = true;
+
+    public NotificationAppPreference(Context context) {
+        super(context);
+        setLayoutResource(R.layout.preference_app);
+    }
+
+    public NotificationAppPreference(Context context, AttributeSet attrs) {
+        super(context, attrs);
+        setLayoutResource(R.layout.preference_app);
+    }
+
+    @Override
+    protected int getSecondTargetResId() {
+        return R.layout.preference_widget_master_switch;
+    }
+
+    public void setProgress(int amount) {
+        mProgress = amount;
+        mProgressVisible = true;
+        notifyChanged();
+    }
+
+    @Override
+    public void onBindViewHolder(PreferenceViewHolder view) {
+        super.onBindViewHolder(view);
+
+        view.findViewById(R.id.summary_container)
+                .setVisibility(TextUtils.isEmpty(getSummary()) ? View.GONE : View.VISIBLE);
+        final ProgressBar progress = (ProgressBar) view.findViewById(android.R.id.progress);
+        if (mProgressVisible) {
+            progress.setProgress(mProgress);
+            progress.setVisibility(View.VISIBLE);
+        } else {
+            progress.setVisibility(View.GONE);
+        }
+
+        final View widgetView = view.findViewById(android.R.id.widget_frame);
+        if (widgetView != null) {
+            widgetView.setOnClickListener(new View.OnClickListener() {
+                @Override
+                public void onClick(View v) {
+                    if (mSwitch != null && !mSwitch.isEnabled()) {
+                        return;
+                    }
+                    setChecked(!mChecked);
+                    if (!callChangeListener(mChecked)) {
+                        setChecked(!mChecked);
+                    } else {
+                        persistBoolean(mChecked);
+                    }
+                }
+            });
+        }
+
+        mSwitch = (Switch) view.findViewById(R.id.switchWidget);
+        if (mSwitch != null) {
+            mSwitch.setContentDescription(getTitle());
+            mSwitch.setChecked(mChecked);
+            mSwitch.setEnabled(mEnableSwitch);
+        }
+    }
+
+    public boolean isChecked() {
+        return mSwitch != null && mChecked;
+    }
+
+    public void setChecked(boolean checked) {
+        mChecked = checked;
+        if (mSwitch != null) {
+            mSwitch.setChecked(checked);
+        }
+    }
+
+    public void setSwitchEnabled(boolean enabled) {
+        mEnableSwitch = enabled;
+        if (mSwitch != null) {
+            mSwitch.setEnabled(enabled);
+        }
+    }
+
+    /**
+     * If admin is not null, disables the switch.
+     * Otherwise, keep it enabled.
+     */
+    public void setDisabledByAdmin(RestrictedLockUtils.EnforcedAdmin admin) {
+        setSwitchEnabled(admin == null);
+    }
+
+    public Switch getSwitch() {
+        return mSwitch;
+    }
+}