菜鸟Andriod学习18——拖动条的使用

来源：互联网发布：视频切换矩阵编辑：程序博客网时间：2024/06/01 09:05

1、代码

protected void onCreate(Bundle savedInstanceState) {
  super.onCreate(savedInstanceState);
  setContentView(R.layout.activity_main);
  SeekBar seekbar=(SeekBar)findViewById(R.id.seekBar1);
  final TextView textview =(TextView)findViewById(R.id.textView1);
  seekbar.setOnSeekBarChangeListener(new OnSeekBarChangeListener() {

   @Override
   public void onStopTrackingTouch(SeekBar seekBar) {
    // TODO Auto-generated method stub
    Toast.makeText(MainActivity.this, "停止滑动", Toast.LENGTH_SHORT).show();
   }

   @Override
   public void onStartTrackingTouch(SeekBar seekBar) {
    Toast.makeText(MainActivity.this, "开始滑动", Toast.LENGTH_SHORT).show();// TODO Auto-generated method stub

   }

   @Override
   public void onProgressChanged(SeekBar seekBar, int progress,
     boolean fromUser) {
    textview.setText("当前值:"+progress);// TODO Auto-generated method stub

   }
  });
}

效果如下

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