/** * 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) + "%"; } }