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 17 package com.android.setupwizardlib; 18 19 import android.annotation.TargetApi; 20 import android.content.Context; 21 import android.content.res.TypedArray; 22 import android.graphics.drawable.Drawable; 23 import android.os.Build; 24 import android.os.Build.VERSION_CODES; 25 import android.support.v7.widget.LinearLayoutManager; 26 import android.support.v7.widget.RecyclerView; 27 import android.util.AttributeSet; 28 import android.view.LayoutInflater; 29 import android.view.View; 30 import android.view.ViewGroup; 31 32 import com.android.setupwizardlib.items.ItemGroup; 33 import com.android.setupwizardlib.items.ItemInflater; 34 import com.android.setupwizardlib.items.RecyclerItemAdapter; 35 import com.android.setupwizardlib.util.DrawableLayoutDirectionHelper; 36 import com.android.setupwizardlib.view.HeaderRecyclerView; 37 38 /** 39 * A GLIF themed layout with a RecyclerView. {@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 */ 42 public class GlifRecyclerLayout extends GlifLayout { 43 44 private RecyclerView mRecyclerView; 45 private View mHeader; 46 47 private DividerItemDecoration mDividerDecoration; 48 private Drawable mDefaultDivider; 49 private Drawable mDivider; 50 private int mDividerInset; 51 52 public GlifRecyclerLayout(Context context) { 53 this(context, 0, 0); 54 } 55 56 public GlifRecyclerLayout(Context context, int template) { 57 this(context, template, 0); 58 } 59 60 public GlifRecyclerLayout(Context context, int template, int containerId) { 61 super(context, template, containerId); 62 init(context, null, 0); 63 } 64 65 public GlifRecyclerLayout(Context context, AttributeSet attrs) { 66 super(context, attrs); 67 init(context, attrs, 0); 68 } 69 70 @TargetApi(VERSION_CODES.HONEYCOMB) 71 public GlifRecyclerLayout(Context context, AttributeSet attrs, int defStyleAttr) { 72 super(context, attrs, defStyleAttr); 73 init(context, attrs, defStyleAttr); 74 } 75 76 private void init(Context context, AttributeSet attrs, int defStyleAttr) { 77 final TypedArray a = context.obtainStyledAttributes(attrs, 78 R.styleable.SuwGlifRecyclerLayout, defStyleAttr, 0); 79 final int xml = a.getResourceId(R.styleable.SuwGlifRecyclerLayout_android_entries, 0); 80 if (xml != 0) { 81 final ItemGroup inflated = (ItemGroup) new ItemInflater(context).inflate(xml); 82 RecyclerItemAdapter adapter = new RecyclerItemAdapter(inflated); 83 adapter.setHasStableIds(a.getBoolean( 84 R.styleable.SuwGlifRecyclerLayout_suwHasStableIds, false)); 85 setAdapter(adapter); 86 } 87 int dividerInset = 88 a.getDimensionPixelSize(R.styleable.SuwGlifRecyclerLayout_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_recycler_template; 110 } 111 return super.onInflateTemplate(inflater, template); 112 } 113 114 @Override 115 protected ViewGroup findContainer(int containerId) { 116 if (containerId == 0) { 117 containerId = R.id.suw_recycler_view; 118 } 119 return super.findContainer(containerId); 120 } 121 122 @Override 123 protected void onTemplateInflated() { 124 initRecyclerView((RecyclerView) findViewById(R.id.suw_recycler_view)); 125 } 126 127 protected void initRecyclerView(RecyclerView recyclerView) { 128 mRecyclerView = recyclerView; 129 mRecyclerView.setLayoutManager(new LinearLayoutManager(getContext())); 130 if (mRecyclerView instanceof HeaderRecyclerView) { 131 mHeader = ((HeaderRecyclerView) mRecyclerView).getHeader(); 132 } 133 mDividerDecoration = new DividerItemDecoration(getContext()); 134 mRecyclerView.addItemDecoration(mDividerDecoration); 135 } 136 137 @Override 138 protected View findManagedViewById(int id) { 139 if (mHeader != null) { 140 final View view = mHeader.findViewById(id); 141 if (view != null) { 142 return view; 143 } 144 } 145 return super.findViewById(id); 146 } 147 148 public void setDividerItemDecoration(DividerItemDecoration decoration) { 149 mRecyclerView.removeItemDecoration(mDividerDecoration); 150 mDividerDecoration = decoration; 151 mRecyclerView.addItemDecoration(mDividerDecoration); 152 updateDivider(); 153 } 154 155 public RecyclerView getRecyclerView() { 156 return mRecyclerView; 157 } 158 159 public void setAdapter(RecyclerView.Adapter adapter) { 160 getRecyclerView().setAdapter(adapter); 161 } 162 163 public RecyclerView.Adapter getAdapter() { 164 final RecyclerView.Adapter adapter = getRecyclerView().getAdapter(); 165 if (adapter instanceof HeaderRecyclerView.HeaderAdapter) { 166 return ((HeaderRecyclerView.HeaderAdapter) adapter).getWrappedAdapter(); 167 } 168 return adapter; 169 } 170 171 /** 172 * Sets the start inset of the divider. This will use the default divider drawable set in the 173 * theme and inset it {@code inset} pixels to the right (or left in RTL layouts). 174 * 175 * @param inset The number of pixels to inset on the "start" side of the list divider. Typically 176 * this will be either {@code @dimen/suw_items_glif_icon_divider_inset} or 177 * {@code @dimen/suw_items_glif_text_divider_inset}. 178 */ 179 public void setDividerInset(int inset) { 180 mDividerInset = inset; 181 updateDivider(); 182 } 183 184 public int getDividerInset() { 185 return mDividerInset; 186 } 187 188 private void updateDivider() { 189 boolean shouldUpdate = true; 190 if (Build.VERSION.SDK_INT >= VERSION_CODES.KITKAT) { 191 shouldUpdate = isLayoutDirectionResolved(); 192 } 193 if (shouldUpdate) { 194 if (mDefaultDivider == null) { 195 mDefaultDivider = mDividerDecoration.getDivider(); 196 } 197 mDivider = DrawableLayoutDirectionHelper.createRelativeInsetDrawable(mDefaultDivider, 198 mDividerInset /* start */, 0 /* top */, 0 /* end */, 0 /* bottom */, this); 199 mDividerDecoration.setDivider(mDivider); 200 } 201 } 202 203 public Drawable getDivider() { 204 return mDivider; 205 } 206 } 207
