Android自定义TextView实现drawableLeft内容居中

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;/** * 自定义TextView，实现drawableLeft可以和文字一起居中 * @author HLQ * @createtime 2016年3月20日04:14:36 * */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);  }}

<com.test.signcalendar.weight.DrawableCenterTextView          android:id="@+id/textView1111"          android:layout_width="0dp"          android:layout_height="wrap_content"          android:layout_weight="1"          android:drawableLeft="@drawable/fmhp_mine_health_plan_signcalendar_finish_status_bg"          android:drawablePadding="5dp"//给图片和文字之间设置填充          android:text="都完成"          android:textColor="#333333"          android:textSize="12sp" />