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 android.support.v7.widget; 18 19 import android.content.Context; 20 import android.support.v7.appcompat.R; 21 import android.util.AttributeSet; 22 import android.widget.TextView; 23 24 /** 25 * A {@link TextView} which supports compatible features on older version of the platform, 26 * including: 27 * <ul> 28 * <li>Supports {@link R.attr#textAllCaps} style attribute which works back to 29 * {@link android.os.Build.VERSION_CODES#ECLAIR_MR1 Eclair MR1}.</li> 30 * </ul> 31 * 32 * <p>This will automatically be used when you use {@link TextView} in your layouts. 33 * You should only need to manually use this class when writing custom views.</p> 34 */ 35 public class AppCompatTextView extends TextView { 36 37 private AppCompatTextHelper mTextHelper; 38 AppCompatTextView(Context context)39 public AppCompatTextView(Context context) { 40 this(context, null); 41 } 42 AppCompatTextView(Context context, AttributeSet attrs)43 public AppCompatTextView(Context context, AttributeSet attrs) { 44 this(context, attrs, android.R.attr.textViewStyle); 45 } 46 AppCompatTextView(Context context, AttributeSet attrs, int defStyleAttr)47 public AppCompatTextView(Context context, AttributeSet attrs, int defStyleAttr) { 48 super(context, attrs, defStyleAttr); 49 50 mTextHelper = new AppCompatTextHelper(this); 51 mTextHelper.loadFromAttributes(attrs, defStyleAttr); 52 } 53 54 @Override setTextAppearance(Context context, int resId)55 public void setTextAppearance(Context context, int resId) { 56 super.setTextAppearance(context, resId); 57 if (mTextHelper != null) { 58 mTextHelper.onSetTextAppearance(context, resId); 59 } 60 } 61 } 62