Android学习笔记技巧之给文本加边框

时间：2017-04-17 13:00:08 阅读：209 评论：0 收藏：0 [点我收藏+]

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BorderTextViews.Java

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package xiaosi.BorderTextView;
import android.content.Context;
import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.Paint;
import android.util.AttributeSet;
import android.widget.TextView;
public class BorderTextViews extends TextView
{
private Paint paint = null;
private int color = Color.GRAY;
public BorderTextViews(Context context, AttributeSet attrs)
{
super(context, attrs);
}
//设置边框颜色
public void setPaintColor(int color){
this.color = color;
}
@Override
protected void onDraw(Canvas canvas)
{
super.onDraw(canvas);
paint = new Paint();
//给边框设置颜色
paint.setColor(color);
//上
canvas.drawLine(0, 0, this.getWidth()-1, 0, paint);
//左
canvas.drawLine(0, 0, 0, this.getHeight()-1, paint);
//下
canvas.drawLine(0, this.getHeight()-1, this.getWidth()-1, this.getHeight()-1, paint);
//右
canvas.drawLine(this.getWidth()-1, 0, this.getWidth()-1, this.getHeight()-1, paint);
}
}

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main.xml

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原文地址：http://www.cnblogs.com/Free-Thinker/p/6722171.html

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