Creating RadioButtons programmatically(以编程方式创建 RadioButtons)
本文介绍了以编程方式创建 RadioButtons的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
I want to create a series of radio buttons which correspond to an array of strings within an Android app. The radio buttons should toggle content to be displayed from the array. How do I do this?
解决方案
You must add the radio buttons to a RadioGroup and then the RadioGroup
to the layout
I miss some information like what is submit, but your code should look like:
private void createRadioButton() {
final RadioButton[] rb = new RadioButton[5];
RadioGroup rg = new RadioGroup(this); //create the RadioGroup
rg.setOrientation(RadioGroup.HORIZONTAL);//or RadioGroup.VERTICAL
for(int i=0; i<5; i++){
rb[i] = new RadioButton(this);
rg.addView(rb[i]); //the RadioButtons are added to the radioGroup instead of the layout
rb[i].setText("Test");
}
ll.addView(rg);//you add the whole RadioGroup to the layout
ll.addView(submit);
submit.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
}
ll.removeView(submit);
Questions();
}
});
}
Another code for dynamically creating the radiobutton
<TableRow>
<RadioGroup
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:orientation="vertical"
android:id="@+id/radiobuttons">
</RadioGroup>
</TableRow>
Code:
public void makeRadioButtons(Vector tmpVector, int i, LinearLayout.LayoutParams lp)
{
RadioButton rb = new RadioButton(this);
rb.setText((String) tmpVector.elementAt(i));
//rg is private member of class which refers to the radio group which I find
//by id.
rg.addView(rb, 0, lp);
}
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