我想自定义我的搜索栏,如下所示。并且还希望仅在搜索栏具有焦点时显示拇指,即当用户拖动搜索栏时。
问问题
34 次
1 回答
0
您可以将拇指隐藏onStopTrackingTouch()
并使其在onStartTrackingTouch()
.
final SeekBar seekbar = findViewById(R.id.seekbar);
//Hide the seekbar's thumb.
seekbar.getThumb().setAlpha(0);
final Handler seekBarHandler = new Handler(Looper.getMainLooper());
seekbar.setOnSeekBarChangeListener(new SeekBar.OnSeekBarChangeListener() {
public void onProgressChanged(final SeekBar seekbar, final int progress, final boolean feomUser)
{
//Do something...
}
public void onStartTrackingTouch(final SeekBar seekbar)
{
seekBarHandler.removeCallbacksAndMessages(null);
seekbar.getThumb().setAlpha(255);
}
public void onStopTrackingTouch(final SeekBar seekbar)
{
//Hide the thumb if not focus for a second.
seekBarHandler.postDelayed(new Runnable() {
public void run() {
seekbar.getThumb().setAlpha(0);
}
}, 1000L); //Delay
}
});
于 2021-06-28T14:59:46.830 回答