我正在使用android应用程序,我正在使用搜索栏。其中我的范围是从0到20,起始值是5.对于数值,它工作正常,但现在我想使其为十进制值,但范围应该从0.0到20.0。我的数字代码如下:
SeekBar seek=(SeekBar) findViewById(R.id.seekBar1);
seek.setProgress(5);
seek.setOnSeekBarChangeListener(new OnSeekBarChangeListener() {
@Override
public void onStopTrackingTouch(SeekBar seekBar) {
}
@Override
public void onStartTrackingTouch(SeekBar seekBar) {
// TODO Auto-generated method stub
}
@Override
public void onProgressChanged(SeekBar seekBar, int progress,boolean fromUser) {
textView.setText( progress + " km");// + seekBar.getMax());
distance = progress;
}
});
搜索栏的XML:
<TextView
android:id="@+id/txtSeekBar"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:layout_marginBottom="10dp"
android:text="5 km"
android:textAppearance="?android:attr/textAppearanceMedium"
android:textColor="@color/gray" />
我已将此示例代码用于十进制值,但它无效。
SeekBar seek=(SeekBar) findViewById(R.id.seekBar1);
seek.setProgress(5);
seek.setOnSeekBarChangeListener(new OnSeekBarChangeListener() {
@Override
public void onStopTrackingTouch(SeekBar seekBar) {
}
@Override
public void onStartTrackingTouch(SeekBar seekBar) {
// TODO Auto-generated method stub
}
@Override
public void onProgressChanged(SeekBar seekBar, int progress,boolean fromUser) {
double value = ((float)progress / 20.0);
String yourprogress = String.valueOf(value);
textView.setText( yourprogress + " km");// + seekBar.getMax());
distance = (int) value;
}
});
答案 0 :(得分:4)
您应该使进度范围从0到200,然后在更改时将当前进度与0.1f相乘。欢呼声。
SeekBar seek=(SeekBar) findViewById(R.id.seekBar1);
seek.setProgress(5 * 10);
seek.setOnSeekBarChangeListener(new OnSeekBarChangeListener() {
@Override
public void onStopTrackingTouch(SeekBar seekBar) {
}
@Override
public void onStartTrackingTouch(SeekBar seekBar) {
// TODO Auto-generated method stub
}
@Override
public void onProgressChanged(SeekBar seekBar, int progress,boolean fromUser) {
float currentProgress = progress * 0.1f;
String yourprogress = String.format("%.1f", currentProgress);
textView.setText( yourprogress + " km");// + seekBar.getMax());
}
});
在XML布局中将添加到进度条
android:max="200"
当你想getProgress也乘以0.1f
float currentProgress = seekBar.getProgress() * 0.1f;