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;/** * 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); } }
2.之后在xml布局文件中直接引用即可。。。
真是会者不难,,,难者不会。。。