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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.EditText;
     23 
     24 import com.android.phone.common.R;
     25 import com.android.phone.common.util.ViewUtil;
     26 
     27 /**
     28  * EditText which resizes dynamically with respect to text length.
     29  */
     30 public class ResizingTextEditText extends EditText {
     31     private final int mOriginalTextSize;
     32     private final int mMinTextSize;
     33     private boolean mIsResizeEnabled = true;
     34 
     35     public ResizingTextEditText(Context context, AttributeSet attrs) {
     36         super(context, attrs);
     37         mOriginalTextSize = (int) getTextSize();
     38         TypedArray a = context.obtainStyledAttributes(attrs, R.styleable.ResizingText);
     39         mMinTextSize = (int) a.getDimension(R.styleable.ResizingText_resizing_text_min_size,
     40                 mOriginalTextSize);
     41         a.recycle();
     42     }
     43 
     44     @Override
     45     protected void onTextChanged(CharSequence text, int start, int lengthBefore, int lengthAfter) {
     46         super.onTextChanged(text, start, lengthBefore, lengthAfter);
     47         if (mIsResizeEnabled) {
     48             ViewUtil.resizeText(this, mOriginalTextSize, mMinTextSize);
     49         }
     50     }
     51 
     52     @Override
     53     protected void onSizeChanged(int w, int h, int oldw, int oldh) {
     54         super.onSizeChanged(w, h, oldw, oldh);
     55         if (mIsResizeEnabled) {
     56             ViewUtil.resizeText(this, mOriginalTextSize, mMinTextSize);
     57         }
     58     }
     59 
     60     public void setResizeEnabled(boolean isEnabled) {
     61         mIsResizeEnabled = isEnabled;
     62     }
     63 }
     64