1/* 2 * Copyright (C) 2015 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 17package com.android.setupwizardlib; 18 19import android.annotation.TargetApi; 20import android.content.Context; 21import android.content.res.TypedArray; 22import android.graphics.drawable.Drawable; 23import android.os.Build; 24import android.os.Build.VERSION_CODES; 25import android.util.AttributeSet; 26import android.view.LayoutInflater; 27import android.view.View; 28import android.view.ViewGroup; 29import android.widget.HeaderViewListAdapter; 30import android.widget.ListAdapter; 31import android.widget.ListView; 32 33import com.android.setupwizardlib.items.ItemAdapter; 34import com.android.setupwizardlib.items.ItemGroup; 35import com.android.setupwizardlib.items.ItemInflater; 36import com.android.setupwizardlib.util.DrawableLayoutDirectionHelper; 37 38/** 39 * A GLIF themed layout with a ListView. {@code android:entries} can also be used to specify an 40 * {@link com.android.setupwizardlib.items.ItemHierarchy} to be used with this layout in XML. 41 */ 42public class GlifListLayout extends GlifLayout { 43 44 /* static section */ 45 46 private static final String TAG = "GlifListLayout"; 47 48 /* non-static section */ 49 50 private ListView mListView; 51 private Drawable mDivider; 52 private Drawable mDefaultDivider; 53 private int mDividerInset; 54 55 public GlifListLayout(Context context) { 56 this(context, 0, 0); 57 } 58 59 public GlifListLayout(Context context, int template) { 60 this(context, template, 0); 61 } 62 63 public GlifListLayout(Context context, int template, int containerId) { 64 super(context, template, containerId); 65 init(context, null, 0); 66 } 67 68 public GlifListLayout(Context context, AttributeSet attrs) { 69 super(context, attrs); 70 init(context, attrs, 0); 71 } 72 73 @TargetApi(VERSION_CODES.HONEYCOMB) 74 public GlifListLayout(Context context, AttributeSet attrs, int defStyleAttr) { 75 super(context, attrs, defStyleAttr); 76 init(context, attrs, defStyleAttr); 77 } 78 79 private void init(Context context, AttributeSet attrs, int defStyleAttr) { 80 final TypedArray a = context.obtainStyledAttributes(attrs, R.styleable.SuwGlifListLayout, 81 defStyleAttr, 0); 82 final int xml = a.getResourceId(R.styleable.SuwGlifListLayout_android_entries, 0); 83 if (xml != 0) { 84 final ItemGroup inflated = (ItemGroup) new ItemInflater(context).inflate(xml); 85 setAdapter(new ItemAdapter(inflated)); 86 } 87 int dividerInset = 88 a.getDimensionPixelSize(R.styleable.SuwGlifListLayout_suwDividerInset, 0); 89 if (dividerInset == 0) { 90 dividerInset = getResources() 91 .getDimensionPixelSize(R.dimen.suw_items_glif_icon_divider_inset); 92 } 93 setDividerInset(dividerInset); 94 a.recycle(); 95 } 96 97 @Override 98 protected void onLayout(boolean changed, int left, int top, int right, int bottom) { 99 super.onLayout(changed, left, top, right, bottom); 100 if (mDivider == null) { 101 // Update divider in case layout direction has just been resolved 102 updateDivider(); 103 } 104 } 105 106 @Override 107 protected View onInflateTemplate(LayoutInflater inflater, int template) { 108 if (template == 0) { 109 template = R.layout.suw_glif_list_template; 110 } 111 return super.onInflateTemplate(inflater, template); 112 } 113 114 @Override 115 protected ViewGroup findContainer(int containerId) { 116 if (containerId == 0) { 117 containerId = android.R.id.list; 118 } 119 return super.findContainer(containerId); 120 } 121 122 @Override 123 protected void onTemplateInflated() { 124 mListView = (ListView) findViewById(android.R.id.list); 125 } 126 127 public ListView getListView() { 128 return mListView; 129 } 130 131 public void setAdapter(ListAdapter adapter) { 132 getListView().setAdapter(adapter); 133 } 134 135 public ListAdapter getAdapter() { 136 final ListAdapter adapter = getListView().getAdapter(); 137 if (adapter instanceof HeaderViewListAdapter) { 138 return ((HeaderViewListAdapter) adapter).getWrappedAdapter(); 139 } 140 return adapter; 141 } 142 143 /** 144 * Sets the start inset of the divider. This will use the default divider drawable set in the 145 * theme and inset it {@code inset} pixels to the right (or left in RTL layouts). 146 * 147 * @param inset The number of pixels to inset on the "start" side of the list divider. Typically 148 * this will be either {@code @dimen/suw_items_glif_icon_divider_inset} or 149 * {@code @dimen/suw_items_glif_text_divider_inset}. 150 */ 151 public void setDividerInset(int inset) { 152 mDividerInset = inset; 153 updateDivider(); 154 } 155 156 public int getDividerInset() { 157 return mDividerInset; 158 } 159 160 private void updateDivider() { 161 boolean shouldUpdate = true; 162 if (Build.VERSION.SDK_INT >= VERSION_CODES.KITKAT) { 163 shouldUpdate = isLayoutDirectionResolved(); 164 } 165 if (shouldUpdate) { 166 final ListView listView = getListView(); 167 if (mDefaultDivider == null) { 168 mDefaultDivider = listView.getDivider(); 169 } 170 mDivider = DrawableLayoutDirectionHelper.createRelativeInsetDrawable(mDefaultDivider, 171 mDividerInset /* start */, 0 /* top */, 0 /* end */, 0 /* bottom */, this); 172 listView.setDivider(mDivider); 173 } 174 } 175 176 public Drawable getDivider() { 177 return mDivider; 178 } 179} 180