main.xml部分代码:<Spinner
android:id="@+id/color_spinner"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:prompt="@string/prompt_name"
android:entries="@array/colors"
/>
string.xml部分代码:<string-array name="colors">
<item>黄色</item>
<item>绿色</item>
<item>红色</item>
</string-array>
MainActivity部分代码:
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
findViews();
//下拉框点击事件
spinner.setOnItemClickListener(new OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> parent, View view, int position,
long id) {
// TODO Auto-generated method stub
//得到选中item的数据
resultView.setText("您喜欢的颜色是:");
//讲数据设置到resultView中显示
}
});
}
public void findViews(){
resultView = (TextView) this.findViewById(R.id.show_color);
spinner = (Spinner) this.findViewById(R.id.color_spinner);
}这样怎么会报错啊,我把spinner.setOnItemClickListener注销以后就好了,这种情况该怎么设置这个item的点击事件啊?
android:id="@+id/color_spinner"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:prompt="@string/prompt_name"
android:entries="@array/colors"
/>
string.xml部分代码:<string-array name="colors">
<item>黄色</item>
<item>绿色</item>
<item>红色</item>
</string-array>
MainActivity部分代码:
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
findViews();
//下拉框点击事件
spinner.setOnItemClickListener(new OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> parent, View view, int position,
long id) {
// TODO Auto-generated method stub
//得到选中item的数据
resultView.setText("您喜欢的颜色是:");
//讲数据设置到resultView中显示
}
});
}
public void findViews(){
resultView = (TextView) this.findViewById(R.id.show_color);
spinner = (Spinner) this.findViewById(R.id.color_spinner);
}这样怎么会报错啊,我把spinner.setOnItemClickListener注销以后就好了,这种情况该怎么设置这个item的点击事件啊?
// @Override 去掉这个行
public void onItemClick(AdapterView<?> parent, View view, int position,
long id) {
// TODO Auto-generated method stub
//得到选中item的数据
resultView.setText("您喜欢的颜色是:");
//讲数据设置到resultView中显示
}
});
spinner 不支持这个响应函数,
用这个吧 setOnItemSelectedListener
long arg3) {
// TODO Auto-generated method stub
System.out.println("........................");
} public void onNothingSelected(AdapterView<?> arg0) {
// TODO Auto-generated method stub
}
});