Android自定义TextView实现drawableLeft内容居中

如何实现使用TextView的DrawableLeft使图片和文字居中显示呢？？？

代码如下：

1.首先自定义一个类，继承TextView

package com.test.signcalendar.weight;

import android.content.Context;
import android.graphics.Canvas;
import android.graphics.drawable.Drawable;
import android.util.AttributeSet;
import android.widget.TextView;


public class DrawableCenterTextView extends TextView {

  public DrawableCenterTextView(Context context, AttributeSet attrs,
      int defStyle) {
    super(context, attrs, defStyle);
  }

  public DrawableCenterTextView(Context context, AttributeSet attrs) {
    super(context, attrs);
  }

  public DrawableCenterTextView(Context context) {
    super(context);
  }

  @Override
  protected void onDraw(Canvas canvas) {
    Drawable[] drawables = getCompoundDrawables();
    if (drawables != null) {
      Drawable drawableLeft = drawables[0];
      if (drawableLeft != null) {
 float textWidth = getPaint().measureText(getText().toString());
 int drawablePadding = getCompoundDrawablePadding();
 int drawableWidth = 0;
 drawableWidth = drawableLeft.getIntrinsicWidth();
 float bodyWidth = textWidth + drawableWidth + drawablePadding;
 canvas.translate((getWidth() - bodyWidth) / 2, 0);
      }
    }
    super.onDraw(canvas);
  }
}

2.之后在xml布局文件中直接引用即可。。。

3。ok实现效果 如下。。。

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