如何增加Android上的搜索栏数量规模 [英] How to add number scale on android SeekBar

问题描述

我使用的开箱即用的Andr​​oid SeekBar组件的。下面我想数字表单中添加1〜5显示了搜索栏的进度。我有问题正确地分发搜索栏上的数字。

I'm using the out of the box android SeekBar component. Below I would like to add the numbers form 1 to 5 showing the progress of the SeekBar. I have problem distributing the numbers correctly on the seek bar.

就像下面

推荐答案

有关绘制文本在搜索栏拇指使用此功能。

For drawing text over the seekbar thumb use this function

  public BitmapDrawable writeOnDrawable(int drawableId, String text){

        Bitmap bm = BitmapFactory.decodeResource(getResources(), drawableId).copy(Bitmap.Config.ARGB_8888, true);
        Paint paint = new Paint(); 
        paint.setStyle(Style.FILL);  
        paint.setColor(Color.BLACK); 
        paint.setTextSize(20); 
        Canvas canvas = new Canvas(bm);
        canvas.drawText(text, 0, bm.getHeight()/2, paint);

        return new BitmapDrawable(bm);
    }

此功能会调用为

seekbar.setThumb（writeOnDrawable（R.drawable.thumbimage，MYTEXT））;
 放在RES /绘制/和'MYTEXT'thumbimage.png文件要上绘上书写字符串

seekbar.setThumb(writeOnDrawable(R.drawable.thumbimage, mytext)); put thumbimage.png file in res/drawable/ and 'mytext' is the string which you want to write on top of that drawable

有关完整的谈话看到下面的链接

For complete conversation see the below link

<一个href=\"http://stackoverflow.com/questions/12369519/how-to-set-the-seek-bar-thumb-with-a-layout-or-with-a-textview\">how设置搜索栏大拇指布局或一个TextView？

希望这对您有所帮助。

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