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 
ResizingTextTextView(Context context, AttributeSet attrs)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
onTextChanged(CharSequence text, int start, int lengthBefore, int lengthAfter)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
onSizeChanged(int w, int h, int oldw, int oldh)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