android - Android程序可以在seekbar的帮助下放大和缩小？

我想放大和缩小一个图像相对于运动的搜索栏！！
有人能帮我做这件事吗？请您及时回复，我们将不胜感激！！！！

最佳答案

onprogresschanged（）方法做我想做的魔术！！
公共类mainActivity扩展活动实现onSeekBarchangeListener
{

private SeekBar mSeekBar;
Bitmap bm;
ImageView image;
@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    mSeekBar = (SeekBar) findViewById(R.id.seekBar);
    mSeekBar.setOnSeekBarChangeListener((OnSeekBarChangeListener) this);
   image=(ImageView)findViewById(R.id.image);
   bm=BitmapFactory.decodeResource(getResources(), R.drawable.sachin);
}

@Override
public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) {

     Bitmap resizedbitmap=Bitmap.createScaledBitmap(bm,10, 10, true);

      if(progress>0&&progress<=25)
      {
           resizedbitmap=Bitmap.createScaledBitmap(bm,70, 70, true);
      }
      if(progress>26&&progress<=50)
      {
           resizedbitmap=Bitmap.createScaledBitmap(bm,120, 120, true);
      }
      if(progress>51&&progress<=75)
      {
           resizedbitmap=Bitmap.createScaledBitmap(bm,180, 180, true);
      }
      if(progress>76&&progress<=100)
      {
          resizedbitmap=Bitmap.createScaledBitmap(bm,220, 220, true);
      }

      image.setImageBitmap(resizedbitmap);

}
@Override
public void onStartTrackingTouch(SeekBar seekBar) {

}
@Override
public void onStopTrackingTouch(SeekBar seekBar)

{
    mSeekBar.setSecondaryProgress(seekBar.getProgress());

}
@Override
public boolean onCreateOptionsMenu(Menu menu) {

    getMenuInflater().inflate(R.menu.activity_main, menu);
    return true;
}

}