Progressbar 内加文字

最新推荐文章于 2023-03-07 11:13:33 发布

sunjianjiayou000

最新推荐文章于 2023-03-07 11:13:33 发布

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本文链接：https://blog.youkuaiyun.com/sunjianjiayou000/article/details/43450483

这是一个自定义的MProgressView类，继承自ProgressBar。它在进度条内部显示文字，通过onDraw方法绘制文字，并在初始化时设置画笔颜色为灰色。提供了setText方法用于设置要显示的文本。

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package com.voole.ep.playertest;

import android.content.Context;
import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.Paint;
import android.graphics.Rect;
import android.util.AttributeSet;
import android.widget.ProgressBar;

public class MProgressView extends ProgressBar{

private String text ;
private Paint mPaint ;

public MProgressView(Context context, AttributeSet attrs, int defStyle) {
super(context, attrs, defStyle);
// TODO Auto-generated constructor stub
init() ;
}

public MProgressView(Context context, AttributeSet attrs) {
super(context, attrs);
// TODO Auto-generated constructor stub
init() ;
}

public MProgressView(Context context) {
super(context);
// TODO Auto-generated constructor stub
init() ;
}

@Override
protected synchronized void onDraw(Canvas canvas) {
// TODO Auto-generated method stub
super.onDraw(canvas);
Rect rect = new Rect() ;
mPaint.getTextBounds(text, 0, text.length(), rect) ;
int x = getWidth()/2 - rect.centerX() ;
int y = getHeight()/2-rect.centerY() ;
canvas.drawText(text, x, y, mPaint) ;
}

private void init(){
mPaint = new Paint() ;
mPaint.setColor(Color.GRAY) ;
}

public void setText(String text){
this.text = text ;
}
}