我在RadioGroup
中有一个动态创建的单选按钮,因为这些值来自数据库。我希望能够实现setOnClickListener
,这样我就可以得到所选的值。每当我尝试点击单选按钮时,什么也不显示。如何实现setOnClickListener从动态创建的RadioButton中获取选定的值Android
public void viewAll() {
Cursor res = myDb.getAllData();
LinearLayout bg = (LinearLayout) findViewById(R.id.backgroundSM);
LinearLayout display = (LinearLayout) findViewById(R.id.viewAllMsg);
final RadioButton[] rb = new RadioButton[5];
rg = new RadioGroup(this); //create the RadioGroup
rg.setOrientation(RadioGroup.VERTICAL);//or RadioGroup.VERTICAL
res.moveToFirst();
for(int i=0; i<res.getCount(); i++){
rb[i] = new RadioButton(this);
//Toast.makeText(getApplicationContext(),res.getString(1) + " ", Toast.LENGTH_LONG).show();
rb[i].setText(" " + res.getString(1)
+ " " + res.getInt(0));
rb[i].setId(i + 100);
rg.addView(rb[i]);
res.moveToNext();
}
display.addView(rg); // add the whole RadioGroup to the layout
rg.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
for(int i = 0; i < 5; i++) {
rg.removeView(rb[i]); // now the RadioButtons are in the RadioGroup
}
int id = rg.getCheckedRadioButtonId();
Toast.makeText(getApplicationContext(),id + " worked", Toast.LENGTH_LONG).show();
}
});
}
什么是错我的代码?非常感谢你的帮助。
你可能想独立点击听众,而不是一个监听器设置为单选按钮到整个组视图。 http://stackoverflow.com/questions/13529361/how-to-attach-a-listener-to-a-radio-button/ –
为了清楚起见,“View.OnClickListener”适用于整个视图。你想要一个'OnCheckedChangeListener' –