1 /* 2 * Copyright (C) 2009 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.camera; 18 19 import android.content.Context; 20 import android.content.res.Resources; 21 import android.content.res.TypedArray; 22 import android.util.AttributeSet; 23 24 import com.android.camera.R; 25 26 import java.util.List; 27 28 /** A {@code ListPreference} where each entry has a corresponding icon. */ 29 public class IconListPreference extends ListPreference { 30 31 private int mIconIds[]; 32 private int mLargeIconIds[]; 33 34 public IconListPreference(Context context, AttributeSet attrs) { 35 super(context, attrs); 36 TypedArray a = context.obtainStyledAttributes( 37 attrs, R.styleable.IconListPreference, 0, 0); 38 Resources res = context.getResources(); 39 mIconIds = getIconIds(res, a.getResourceId( 40 R.styleable.IconListPreference_icons, 0)); 41 mLargeIconIds = getIconIds(res, a.getResourceId( 42 R.styleable.IconListPreference_largeIcons, 0)); 43 a.recycle(); 44 } 45 46 public int[] getLargeIconIds() { 47 return mLargeIconIds; 48 } 49 50 public int[] getIconIds() { 51 return mIconIds; 52 } 53 54 public void setLargeIconIds(int[] largeIconIds) { 55 mLargeIconIds = largeIconIds; 56 } 57 58 public void setIconIds(int[] iconIds) { 59 mIconIds = iconIds; 60 } 61 62 private int[] getIconIds(Resources res, int iconsRes) { 63 if (iconsRes == 0) return null; 64 TypedArray array = res.obtainTypedArray(iconsRes); 65 int n = array.length(); 66 int ids[] = new int[n]; 67 for (int i = 0; i < n; ++i) { 68 ids[i] = array.getResourceId(i, 0); 69 } 70 array.recycle(); 71 return ids; 72 } 73 74 @Override 75 public void filterUnsupported(List<String> supported) { 76 CharSequence entryValues[] = getEntryValues(); 77 IntArray iconIds = new IntArray(); 78 IntArray largeIconIds = new IntArray(); 79 80 for (int i = 0, len = entryValues.length; i < len; i++) { 81 if (supported.indexOf(entryValues[i].toString()) >= 0) { 82 iconIds.add(mIconIds[i]); 83 largeIconIds.add(mLargeIconIds[i]); 84 } 85 } 86 int size = iconIds.size(); 87 mIconIds = iconIds.toArray(new int[size]); 88 mLargeIconIds = iconIds.toArray(new int[size]); 89 super.filterUnsupported(supported); 90 } 91 } 92