Android自定义进度条-带文本(文字进度)的水平进度条(ProgressBar)

/**

 * 带文本提示的进度条

 */

public class TextProgressBar extends ProgressBar {

    private String text;

    private Paint mPaint;

public TextProgressBar(Context context) {

        super(context);

        initText();

    }
public TextProgressBar(Context context, AttributeSet attrs, int defStyle) {

        super(context, attrs, defStyle);

        initText();

    }
public TextProgressBar(Context context, AttributeSet attrs) {

        super(context, attrs);

        initText();

    }
@Override

    public void setProgress(int progress) {

        setText(progress);

        super.setProgress(progress);
}
@Override

    protected synchronized void onDraw(Canvas canvas) {

        super.onDraw(canvas);

        Rect rect = new Rect();

        this.mPaint.getTextBounds(this.text, 0, this.text.length(), rect);

        int x = (getWidth() / 2) - rect.centerX();

        int y = (getHeight() / 2) - rect.centerY();

        canvas.drawText(this.text, x, y, this.mPaint);

    }
// 初始化，画笔

    private void initText() {

        this.mPaint = new Paint();

        this.mPaint.setAntiAlias(true);

        this.mPaint.setColor(Color.WHITE);
}
// 设置文字内容

    private void setText(int progress) {

        int i = (int) ((progress * 1.0f / this.getMax()) * 100);

        this.text = String.valueOf(i) + "%";

    }

}

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