如何在文件布局中的radioGroup中创建单选按钮,而不知道确切的计数
任何人都有任何想法吗?
答案 0 :(得分:3)
我要求你清楚地说出来,但是当我得到的时候,你想要多个单选按钮,
Take a loop and create dynamic RadioButton add these button to Radio Group
答案 1 :(得分:2)
可能这有任何帮助;
public class RadDemoActivity extends Activity {
private RadioGroup radGroup;
private Button addButton;
private RadioButton radButton;
private static int no;
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
no=0;
doInflateItems();
setAddButton();
}
private void doInflateItems() {
radGroup = (RadioGroup) findViewById(R.id.radGroup);
addButton = (Button) findViewById(R.id.addRad);
}
private void setAddButton() {
addButton.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
radButton = new RadioButton(getApplicationContext());
radButton.setText("Option " + no++);
radGroup.addView(radButton);
}
});
}
}
XML布局:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical" android:layout_width="fill_parent"
android:layout_height="fill_parent">
<Button android:id="@+id/addRad" android:layout_width="wrap_content"
android:layout_height="wrap_content" android:text="Add" />
<ScrollView android:id="@+id/vScroll" android:layout_width="fill_parent"
android:layout_height="wrap_content">
<RadioGroup android:id="@+id/radGroup"
android:layout_width="wrap_content" android:layout_height="wrap_content" />
</ScrollView>
</LinearLayout>
此代码通过按钮单击添加单选按钮,如果要一次添加多个按钮,可以从循环中执行相同操作。希望这会有所帮助。