Android：如何自定義這個特定的Seekbar？

Question

圖：

我應該怎麼做來定製特定的搜索條，如PIC？

我想的一點是：

1. 當手指在搜索條，如何呈現顯示進度懸浮視圖移動。

2. 有一些視圖哪個圖層與seekbar的父視圖具有相同的級別，這些視圖在seekbar附近，這些視圖是否會與暫停視圖重疊？

Answer 1

這個答案請看：13887556

這可能是一個很好的起點。 儘可能擴大搜索欄和覆蓋onMeasure（）和的onDraw方法（）：

@Override 
protected synchronized void onMeasure(int widthMeasureSpec, int heightMeasureSpec) 
{ 
    super.onMeasure(widthMeasureSpec, heightMeasureSpec); 

    if (labelBackground != null) 
    { 

     viewWidth = getMeasuredWidth(); 
     barHeight = getMeasuredHeight();// returns only the bar height (without the label); 
     setMeasuredDimension(viewWidth, barHeight + labelBackground.getHeight()); 
    } 

} 



@Override 
protected synchronized void onDraw(Canvas canvas) 
{ 
    if (labelBackground != null) 
    { 
     barBounds.left = getPaddingLeft(); 
     barBounds.top = labelBackground.getHeight() + getPaddingTop(); 
     barBounds.right = barBounds.left + viewWidth - getPaddingRight() - getPaddingLeft(); 
     barBounds.bottom = barBounds.top + barHeight - getPaddingBottom() - getPaddingTop(); 

     progressPosX = barBounds.left + ((float) this.getProgress()/(float) this.getMax()) * barBounds.width(); 

     labelPos.x = (int) progressPosX - labelOffset; 
     labelPos.y = getPaddingTop(); 

     progressDrawable = getProgressDrawable(); 
     progressDrawable.setBounds(barBounds.left, barBounds.top, barBounds.right, barBounds.bottom); 
     progressDrawable.draw(canvas); 

     labelTextPaint.getTextBounds(labelText, 0, labelText.length(), labelTextRect); 

     canvas.drawBitmap(labelBackground, labelPos.x, labelPos.y, labelBackgroundPaint); 
     canvas.drawText(labelText, labelPos.x + labelBackground.getWidth()/2 - labelTextRect.width()/2, labelPos.y + labelBackground.getHeight()/2 + labelTextRect.height()/2, labelTextPaint); 

     thumbX = (int) progressPosX - getThumbOffset(); 
     thumbDrawable.setBounds(thumbX, barBounds.top, thumbX + thumbDrawable.getIntrinsicWidth(), barBounds.top + thumbDrawable.getIntrinsicHeight()); 
     thumbDrawable.draw(canvas); 
    } else 
    { 
     super.onDraw(canvas); 
    }