1 /* 2 * Copyright (C) 2014 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package com.android.tv.settings; 18 19 import android.app.Activity; 20 import android.os.Bundle; 21 import android.graphics.drawable.Drawable; 22 import android.support.v17.leanback.app.BrowseFragment; 23 import android.support.v17.leanback.widget.ListRow; 24 import android.support.v17.leanback.widget.ListRowPresenter; 25 import android.support.v17.leanback.widget.ClassPresenterSelector; 26 import android.support.v17.leanback.widget.ObjectAdapter; 27 28 /** 29 * Activity showing a menu of settings. 30 */ 31 public abstract class MenuActivity extends Activity { 32 33 private static final String TAG_BROWSE_FRAGMENT = "browse_fragment"; 34 35 private BrowseFragment mBrowseFragment; 36 getBrowseTitle()37 protected abstract String getBrowseTitle(); 38 getBadgeImage()39 protected abstract Drawable getBadgeImage(); 40 getBrowseInfoFactory()41 protected abstract BrowseInfoFactory getBrowseInfoFactory(); 42 43 @Override onCreate(Bundle savedInstanceState)44 protected void onCreate(Bundle savedInstanceState) { 45 super.onCreate(savedInstanceState); 46 47 mBrowseFragment = (BrowseFragment) getFragmentManager().findFragmentByTag( 48 TAG_BROWSE_FRAGMENT); 49 if (mBrowseFragment == null) { 50 mBrowseFragment = new BrowseFragment(); 51 getFragmentManager().beginTransaction() 52 .replace(android.R.id.content, mBrowseFragment, TAG_BROWSE_FRAGMENT) 53 .commit(); 54 } 55 56 ClassPresenterSelector rowPresenterSelector = new ClassPresenterSelector(); 57 rowPresenterSelector.addClassPresenter(ListRow.class, new ListRowPresenter()); 58 59 ObjectAdapter adapter = getBrowseInfoFactory().getRows(); 60 adapter.setPresenterSelector(rowPresenterSelector); 61 62 mBrowseFragment.setAdapter(adapter); 63 updateBrowseParams(); 64 } 65 updateBrowseParams()66 protected void updateBrowseParams() { 67 mBrowseFragment.setTitle(getBrowseTitle()); 68 mBrowseFragment.setBadgeDrawable(getBadgeImage()); 69 mBrowseFragment.setHeadersState(BrowseFragment.HEADERS_DISABLED); 70 } 71 } 72