按下按钮即可清除微调器 [英] Clear Spinner on Button press
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问题描述
有人可以建议如何通过单击按钮清除微调器中的值吗?
Can anyone suggest how to clear the values in the spinner on a button click?
Spinner spinner1;
private static final String[] SpinArray= { "00", "01", "02",
"03", "04", "05", "06", "07", "08", "09", "10", "11", "12", "13",
"14", "15", "16", "17", "18", "19", "20", "21", "22", "23", "00" };
adapter = new ArrayAdapter(this, android.R.layout.simple_spinner_item,
SpinArray);
adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
spinner1.setAdapter(adapter);
spinner1.setOnItemSelectedListener(new mySpinnerListener());
public void onItemSelected(AdapterView parent, View v, int position,
long id) {
// TODO Auto-generated method stub
switch(parent.getId()){
case R.id.spinner1:
spinner1=parent.getSelectedItem().toString();
break;
}
在按钮上单击我试图清除的按钮
on button click i tried to clear using
spinner1.setAdapter(null); and spinner1.setOnItemSelectedListener(null);
这两种方法在我的情况下均无效..请帮助
both of these didn't work in my case.. please help
推荐答案
spinner1.getAdapter().clear();
应该可以解决问题.
正如埃里克(Eric)在评论中所说,在此之后致电spinner1.getAdapter().notifyDataSetChanged();
.
As Eric said in the comments, call spinner1.getAdapter().notifyDataSetChanged();
after that.
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