问题描述
我需要动态添加单选按钮.单选按钮可以是3、4、5或6,可以水平添加,一行最多可以包含3个单选按钮.
I need to add radio button dynamically. A radio button may be 3, 4, 5 or 6 and it would be added horizontally and one row contains maximum 3 radio button.
如果大于3,则它将位于网格视图中单选按钮的上一行的下方.我的单选按钮代码在下面,但是它将所有单选按钮显示在一行中,这意味着它隐藏了该单选按钮.
If there are more than 3 then it would come below of above row of radio button as in grid view. My code for radio button are below but it display all radio button in a single row, means it's hiding the radiobutton.
main.xml:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical" >
<TextView
android:id="@+id/TextView01"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Choose Your Favorite Actress" >
</TextView>
<RadioGroup
android:id="@+id/RadioGroup01"
android:layout_width="wrap_content"
android:layout_height="wrap_content" >
</RadioGroup>
<Button
android:id="@+id/Button01"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Submit" >
</Button>
</LinearLayout>
Java类是:
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
DisplayRadioButton();
}
public void DisplayRadioButton() {
for(int i=0;i<10;i++) {
RadioGroup radiogroup = (RadioGroup)findViewById(R.id.RadioGroup01);
RadioButton rdbtn = new RadioButton(this);
rdbtn.setId(i);
rdbtn.setText(text[i]);
radiogroup.addView(rdbtn);
}
}
推荐答案
请尝试以下方式:
1)在您的xml中删除 RadioGroup .通过动态创建
1)in your xml remove the RadioGroup. create it by dynamically
RadioGroup radiogroup[];
RadioButton rdbtn[];
LinearLayout linear[];
radiogroup = new RadioGroup[9/3];
rdbtn = new RadioButton[9];
linear = new LinearLayout[9/3];
......
int count = 0; // integer flag
for(int i=0;i<9;i++){
if the value of i is equal to 3 multiple then increase count by 1
// sett linear[count]'s orientation is horizontal.
root_layout.addView(linear[count]);
radiogroup[count] = new RadioGroup(this);
linear[count].addView(radiogroup[count]); // add radio group to linear layout
add radio button to radio group.
rdbtn[i] = new RadioButton(this);
rdbtn[i].addView(radiogroup[count]);
}
我希望你能解决.注意数组索引超出范围的异常.
i hope you get solved. be aware of array index out of bound exception.
您的xml可能类似于:
your xml may look like:
<LinearLayout
android:id= rootlayout
..... // the child linearlayout
.. . radio group
... radio button
</LinearLayout>
这篇关于在Android应用中动态添加单选按钮的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持!