SeekBar的用法

1)ProgressBar (一般进度条,例如:下载进度条)
2)SeekBar(拖动条,适用于音乐,视频播放进度条)
3)RatingBar(星星数量级别评价条)

public class MainActivity extends Activity implements OnSeekBarChangeListener{

    private SeekBar sBar;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        sBar=(SeekBar) findViewById(R.id.seekBar1);
        sBar.setOnSeekBarChangeListener(this);
    }

    /**进度改变时执行此方法*/
    @Override
    public void onProgressChanged(SeekBar seekBar, int progress,
            boolean fromUser) {
        Log.i("TAG", "onProgressChanged");
    }

    /**按下(开始触摸)seekBar时*/
    @Override
    public void onStartTrackingTouch(SeekBar seekBar) {
        int startProgress=
        seekBar.getProgress();
        Log.i("TAG", "startProgress="+startProgress);
    }

    /**抬起(停止触摸)seekBar时*/
    @Override
    public void onStopTrackingTouch(SeekBar seekBar) {
        int stopProgress=
        seekBar.getProgress();
        Log.i("TAG", "stopProgress="+stopProgress);
    }
}

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