使用Spinner处理item的点击事件出现的错误
代码:
spinner.setOnItemClickListener(new AdapterView.OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
//获取spinner选中的文本
String cardNumber = Main2Activity.this.getResources().getStringArray(R.array.spinner_main_arr)[position];
Toast.makeText(Main2Activity.this, "" + cardNumber, Toast.LENGTH_SHORT).show();
}
});
spinner的配置数据:在values文件下建立一个文件,自定义名称并写上下面代码
<?xml version="1.0" encoding="utf-8"?>
<resources>
<string-array name="spinner_main_arr">
<item>AAAA</item>
<item>BBBB</item>
</string-array>
</resources>
运行程序出现以下的错误
Caused by: : setOnItemClickListener cannot be used with a spinner.
at (:566)
at .(:47)
错误说明 setOnItemClickListener 不能和spinner 一起使用,所以找了一个替代的方法,叫做setOnItemSelectedListener。
解决问题的代码:
spinner.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {
@Override
public void onItemSelected(AdapterView<?> parent, View view, int position, long id) {
String cardNumber = Main2Activity.this.getResources().getStringArray(R.array.spinner_main_arr)[position];
Toast.makeText(Main2Activity.this, "" + cardNumber, Toast.LENGTH_SHORT).show();
}
@Override
public void onNothingSelected(AdapterView<?> parent) {
}
});