[英]Populating A Spinner From Another Spinner Depending on Condition
What i need to do is if a certain item from spinner 1 is selected it needs to display a certain array in spinner 01 eg if spinner one selected item is Red spinner 01 needs to display level_array as the drop down options for spinner 01 else display cparklevel. 我需要做的是如果选择了微调器1中的某个项目,它需要在微调器01中显示某个数组,例如,如果微调器选择了一个项目,则红色微调器01需要显示level_array作为微调器的下拉选项,否则显示cparklevel 。 in essence i am trying to display how many levels each car park has.
本质上,我试图显示每个停车场有多少级别。 so spinner 1 containts car park names and spinner 01 contains levels
所以微调器1包含停车场名称,微调器01包含级别
Spinner spinner = (Spinner) findViewById(R.id.spinner1);
ArrayAdapter<CharSequence> adapter = ArrayAdapter.createFromResource(
this, R.array.cparkColour_array, android.R.layout.simple_spinner_item);
adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
spinner.setAdapter(adapter);
Spinner spinner2 = (Spinner) findViewById(R.id.Spinner01);
if(spinner.getSelectedItem().equals("Red")){
ArrayAdapter<CharSequence> adapter1 = ArrayAdapter.createFromResource(
this, R.array.level_array, android.R.layout.simple_spinner_item);
adapter1.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
spinner2.setAdapter(adapter1);
}
else {
ArrayAdapter<CharSequence> adapter2 = ArrayAdapter.createFromResource(
this, R.array.cparkLevel_array, android.R.layout.simple_spinner_item);
adapter2.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
spinner2.setAdapter(adapter2);
}
}
any help would be appreciated 任何帮助,将不胜感激
Do it as: 这样做:
spinner_1.setOnItemSelectedListener(new OnItemSelectedListener() {
@Override
public void onItemSelected(AdapterView<?> arg0, View arg1,
int position, long arg3) {
if(spinner_1.getSelectedItem().equals("Red")){
{
// set adapter to spinner_2 here for "Red" selected
}
else
{
// set adapter to spinner_2 for "Red" not selected
}
}
@Override
public void onNothingSelected(AdapterView<?> arg0) {
}
});
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