| /* |
| * Copyright 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 androidx.leanback.preference; |
| |
| import android.os.Bundle; |
| import android.view.LayoutInflater; |
| import android.view.View; |
| import android.view.ViewGroup; |
| import android.widget.TextView; |
| |
| import androidx.annotation.NonNull; |
| |
| /** |
| * This fragment provides a fully decorated leanback-style preference fragment, including a |
| * list background and header. |
| * |
| * <p>The following sample code shows a simple leanback preference fragment that is |
| * populated from a resource. The resource it loads is:</p> |
| * |
| * {@sample frameworks/support/samples/SupportPreferenceDemos/src/main/res/xml/preferences.xml preferences} |
| * |
| * <p>The fragment needs only to implement {@link #onCreatePreferences(Bundle, String)} to populate |
| * the list of preference objects:</p> |
| * |
| * {@sample frameworks/support/samples/SupportPreferenceDemos/src/main/java/com/example/androidx/preference/LeanbackPreferences.java leanback_preferences} |
| */ |
| public abstract class LeanbackPreferenceFragmentCompat extends |
| BaseLeanbackPreferenceFragmentCompat { |
| |
| public LeanbackPreferenceFragmentCompat() { |
| LeanbackPreferenceFragmentTransitionHelperApi21.addTransitions(this); |
| } |
| |
| @Override |
| public View onCreateView(@NonNull LayoutInflater inflater, ViewGroup container, |
| Bundle savedInstanceState) { |
| final View innerView = super.onCreateView(inflater, container, savedInstanceState); |
| // parent class would create a themed context based the preferenceTheme attr. |
| LayoutInflater themedInflater = LayoutInflater.from(innerView.getContext()); |
| final View view = themedInflater.inflate(R.layout.leanback_preference_fragment, container, |
| false); |
| final ViewGroup innerContainer = (ViewGroup) view.findViewById(R.id.main_frame); |
| if (innerView != null) { |
| innerContainer.addView(innerView); |
| } |
| return view; |
| } |
| |
| @Override |
| public void onViewCreated(@NonNull View view, Bundle savedInstanceState) { |
| super.onViewCreated(view, savedInstanceState); |
| setTitle(getPreferenceScreen().getTitle()); |
| } |
| |
| /** |
| * Set the title to be shown above the preference list |
| * |
| * @param title Title text to be shown |
| */ |
| public void setTitle(CharSequence title) { |
| final View view = getView(); |
| final TextView decorTitle = view == null |
| ? null : (TextView) view.findViewById(R.id.decor_title); |
| if (decorTitle != null) { |
| decorTitle.setText(title); |
| } |
| } |
| } |