seekbar如何实现弧形的进度条或SeekBar

在android的音乐播放器中用到的seekBar控件怎么用

int position = mediaPlayer.getCurrentPosition(); int total = mediaPlayer.getDuration(); int max = seekBar.getMax(); if (position>=0&&total!=0) { seekBar.setProgress(position*max/total); } 这是随着播放更新进度条的，拖动视频和这个差不多。

不懂追问。

怎么得到seekbar进度的位置

seekbar.setOnSeekBarChangeListener(new seekbarListener()); //这个监听seekbar变化的，一旦有变，变化到哪progress表示 private class seekbarListener implements OnSeekBarChangeListener{ @Override public void onProgressChanged

android seekbar 单击事件

1.先把你的xml文件写好 2.用这个代码： SeekBar fSlider = (SeekBar) findViewById(R.id.songProgressBar); fSlider.setProgress(0); // 这个很重要 OnSeekBarChangeListener progressListener = new OnSeekBarChangeListener() { public void TrackingTouch(SeekBar seekBar) { } public void onStartTrackingTouch(SeekBar seekBar) { } public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) { if(fromUser) //做一些事; } }; fSlider.setOnSeekBarChangeListener(progressListener);

如何实现弧形的进度条或SeekBar

[Android UI界面]如何实现弧形的进度条或SeekBar？ 转载 public MusicSeekbar(Context context, AttributeSet attrs) { super(context, attrs); mContext = context; mPaint.setAntiAlias(true); mPaint.setFilterBitmap(true); mPaint.setStrokeWidth(4); mPaint.setColor(getResources().getColor(R.color.music_seekbar)); mPaint.setStyle(Style.STROKE); mBitmapDot = BitmapFactory.decodeResource(getResources(), R.drawable.ui_music_dot); // if(mThread==null) // { // mThread=new Thread(new myThread()); // mThread.start(); // } mPaintText.setAntiAlias(true); mPaintText.setStyle(Style.STROKE); mPaintText.setStrokeWidth(1); // conn=new MediaPlayerServiceConnection(mContext); // init(); } protected void onDraw(Canvas canvas) { mLeft = (float) (Centre_X - RADIUS * Math.cos((90 - mSeekBarTotalDegree / 2 + mDegree) / 180 * Math.PI)); mTop = (float) (Centre_Y - RADIUS * Math.sin((90 - mSeekBarTotalDegree / 2 + mDegree) / 180 * Math.PI)); Shader mLinearGradient = new LinearGradient(mLeft - 80, 100, mLeft, 100, new int[] { getResources().getColor(R.color.music_seekbar), getResources().getColor(R.color.music_seekbar1) }, null, Shader.TileMode.CLAMP); mPaint.setShader(mLinearGradient); canvas.drawArc(mRect, mStartDegree, mDegree, false, mPaint); canvas.drawBitmap(mBitmapDot, mLeft - 20, mTop - 20, new Paint()); canvas.save(); canvas.rotate(-22, Centre_X, Centre_Y); mPaintText.setColor(getResources().getColor(R.color.music_seekbar)); canvas.drawText(formatTime(mCurTime), 150, 0, mPaintText); canvas.restore(); canvas.save(); canvas.rotate(20, Centre_X, Centre_Y); mPaintText.setColor(Color.WHITE); canvas.drawText(formatTime(mDuration), 150, 0, mPaintText); canvas.restore(); super.onDraw(canvas); }