Android 如何获得 Spinner 值？
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How to get Spinner value?
提问by Sam Dutton
In Android, I am trying to get the selected Spinner value with a listener.
在 Android 中，我试图通过侦听器获取选定的 Spinner 值。
What is the best way to get the spinner's value?
获得微调器值的最佳方法是什么？
回答by dodo
Spinner mySpinner = (Spinner) findViewById(R.id.your_spinner);
String text = mySpinner.getSelectedItem().toString();
回答by Erich Douglass
The Spinner should fire an "OnItemSelected" event when something is selected:
The Spinner should fire an "OnItemSelected" event when something is selected:
spinner.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {
public void onItemSelected(AdapterView<?> parent, View view, int pos, long id) {
Object item = parent.getItemAtPosition(pos);
}
public void onNothingSelected(AdapterView<?> parent) {
}
});
回答by lenooh
Say this is your xml with spinner entries (ie. titles) and values:
假设这是带有微调条目（即标题）和值的 xml：
<resources>
<string-array name="size_entries">
<item>Small</item>
<item>Medium</item>
<item>Large</item>
</string-array>
<string-array name="size_values">
<item>12</item>
<item>16</item>
<item>20</item>
</string-array>
</resources>
and this is your spinner:
这是你的微调器：
<Spinner
android:id="@+id/size_spinner"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:entries="@array/size_entries" />
Then in your code to get the entries:
然后在您的代码中获取条目：
Spinner spinner = (Spinner) findViewById(R.id.size_spinner);
String size = spinner.getSelectedItem().toString(); // Small, Medium, Large
and to get the values:
并获取值：
int spinner_pos = spinner.getSelectedItemPosition();
String[] size_values = getResources().getStringArray(R.array.size_values);
int size = Integer.valueOf(size_values[spinner_pos]); // 12, 16, 20
回答by CommonsWare
回答by gilix
View view =(View) getActivity().findViewById(controlId);
Spinner spinner = (Spinner)view.findViewById(R.id.spinner1);
String valToSet = spinner.getSelectedItem().toString();
回答by Matt Logan
If you already know the item is a String, I prefer:
如果您已经知道该项目是 a String，我更喜欢：
String itemText = (String) mySpinner.getSelectedItem();
Calling toString()on an Objectthat you know is a Stringseems like a more roundabout path than just casting the Objectto String.
调用toString()一个Object你知道是 a 的方法String似乎比仅仅投射Objectto更迂回String。
回答by wafaa hilmy
add setOnItemSelectedListener to spinner reference and get the data like that`
将 setOnItemSelectedListener 添加到微调器引用并获取这样的数据`
mSizeSpinner.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {
@Override
public void onItemSelected(AdapterView<?> adapterView, View view, int position, long l) {
selectedSize=adapterView.getItemAtPosition(position).toString();
