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      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.phone.common.widget;
     18 
     19 import android.content.Context;
     20 import android.content.res.TypedArray;
     21 import android.util.AttributeSet;
     22 import android.widget.TextView;
     23 
     24 import com.android.phone.common.R;
     25 import com.android.phone.common.util.ViewUtil;
     26 
     27 /**
     28  * TextView which resizes dynamically with respect to text length.
     29  */
     30 public class ResizingTextTextView extends TextView {
     31     private final int mOriginalTextSize;
     32     private final int mMinTextSize;
     33 
     34     public ResizingTextTextView(Context context, AttributeSet attrs) {
     35         super(context, attrs);
     36         mOriginalTextSize = (int) getTextSize();
     37         TypedArray a = context.obtainStyledAttributes(attrs, R.styleable.ResizingText);
     38         mMinTextSize = (int) a.getDimension(R.styleable.ResizingText_resizing_text_min_size,
     39                 mOriginalTextSize);
     40         a.recycle();
     41     }
     42 
     43     @Override
     44     protected void onTextChanged(CharSequence text, int start, int lengthBefore, int lengthAfter) {
     45         super.onTextChanged(text, start, lengthBefore, lengthAfter);
     46         ViewUtil.resizeText(this, mOriginalTextSize, mMinTextSize);
     47     }
     48 
     49     @Override
     50     protected void onSizeChanged(int w, int h, int oldw, int oldh) {
     51         super.onSizeChanged(w, h, oldw, oldh);
     52         ViewUtil.resizeText(this, mOriginalTextSize, mMinTextSize);
     53     }
     54 }
     55