Seekbar进度级别达到0到最大值之间的限制

Question

你好我有一个搜索栏,在android中有最大进度值100.我希望搜索栏只能在0到100之间达到50.它不会允许进展beyound值50.我的逻辑就像我不想改变seekbar的最大进展值.

请帮助我如何在android中的seekbar中执行此操作.提前致谢.

@Override
public void onCreate(Bundle savedInstanceState) 
{
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);

    sb1=(SeekBar) findViewById(R.id.seekBar1);
    sb2=(SeekBar) findViewById(R.id.seekBar2);
    sb3=(SeekBar) findViewById(R.id.seekBar3);

    tv1=(TextView) findViewById(R.id.textView1);
    tv2=(TextView) findViewById(R.id.textView2);
    tv3=(TextView) findViewById(R.id.textView3);

    tvremaining=(TextView) findViewById(R.id.textView4);
    tvused=(TextView) findViewById(R.id.textView5);

    sb1.setOnSeekBarChangeListener(this);
    sb2.setOnSeekBarChangeListener(this);
    sb3.setOnSeekBarChangeListener(this);

    total=100;
    used=0;
    remaining=total-used;
    tvremaining.setText(Integer.toString(remaining));
    tvused.setText(Integer.toString(used));

}

@Override
public void onProgressChanged(SeekBar arg0, int arg1, boolean arg2) 
{
    switch (arg0.getId()) 
    {
    case R.id.seekBar1:
        if(arg2)
        {
            tv1.setText(Integer.toString(arg1));
            //arg0.setProgressDrawable(getResources().getDrawable(R.drawable.progress_normal));
        }
        break;
    case R.id.seekBar2:
        if(arg2)
        {
            tv2.setText(Integer.toString(arg1));
            //arg0.setProgressDrawable(getResources().getDrawable(R.drawable.progress_normal));
        }
        break;
    case R.id.seekBar3:
        if(arg2)
        {
            tv3.setText(Integer.toString(arg1));
            //arg0.setProgressDrawable(getResources().getDrawable(R.drawable.progress_normal));
        }
        break;
    }
    progress=arg1;
}

@Override
public void onStartTrackingTouch(SeekBar arg0) 
{
    //arg0.setMax(remaining);

    // TODO Auto-generated method stub
}

@Override
public void onStopTrackingTouch(SeekBar arg0) 
{
    switch (arg0.getId()) 
    {
    case R.id.seekBar1:
        //sb2.setProgressDrawable(getResources().getDrawable(R.drawable.progress_applied));
        //sb3.setProgressDrawable(getResources().getDrawable(R.drawable.progress_applied));

        sb2.setProgress(progress);
        sb3.setProgress(progress);
        break;
    case R.id.seekBar2:
        //sb1.setProgressDrawable(getResources().getDrawable(R.drawable.progress_applied));
        //sb3.setProgressDrawable(getResources().getDrawable(R.drawable.progress_applied));

        sb1.setProgress(progress);
        sb3.setProgress(progress);
        break;
    case R.id.seekBar3:
        //sb1.setProgressDrawable(getResources().getDrawable(R.drawable.progress_applied));
        //sb2.setProgressDrawable(getResources().getDrawable(R.drawable.progress_applied));

        sb1.setProgress(progress);
        sb2.setProgress(progress);
        break;
    }

    used= (Integer.parseInt(tv1.getText().toString()))+(Integer.parseInt(tv2.getText().toString()))+(Integer.parseInt(tv3.getText().toString()));
    remaining = total-used;
    tvremaining.setText(Integer.toString(remaining));
    tvused.setText(Integer.toString(used));

    // TODO Auto-generated method stub
}   

Answer 1

试试这个

final SeekBar mSeekBar=(SeekBar) findViewById(R.id.SeekBar);

    mSeekBar.setMax(100);
    mSeekBar.setOnSeekBarChangeListener(new OnSeekBarChangeListener() {

        @Override
        public void onStopTrackingTouch(SeekBar seekBar) {
            // TODO Auto-generated method stub

        }

        @Override
        public void onStartTrackingTouch(SeekBar seekBar) {
            // TODO Auto-generated method stub

        }

        @Override
        public void onProgressChanged(SeekBar seekBar, int progress,
                boolean fromUser) {
            if(progress>=50)
            {
                mSeekBar.setProgress(50);
            }


            // TODO Auto-generated method stub

        }
    });