我想动态地将无线电组添加到我的布局中,我可以这样做。此外,我还能够选择了一个选择了radiobutton的Toast。
我唯一无法解决的问题是展示无线电组。
代码:
final RadioButton[] rb = new RadioButton[3];
final RadioGroup rg = new RadioGroup(getApplicationContext()); //create the RadioGroup
rg.setLayoutParams(new LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT));
rg.setOrientation(RadioGroup.HORIZONTAL);//or RadioGroup.VERTICAL
for(int y=0; y<3; y++){
rb[y] = new RadioButton(getApplicationContext());
rg.addView(rb[y]); //the RadioButtons are added to the radioGroup instead of the layout
if(y==0){
rb[0].setText("Chico");
}else{
if(y==1){
rb[1].setText("Mediano");
}else{
rb[2].setText("Grande");
}
}
}
rg.setOnCheckedChangeListener(new OnCheckedChangeListener() {
public void onCheckedChanged(RadioGroup rGroup, int checkedId) {
int pos = rg.indexOfChild(findViewById(checkedId));
switch (pos)
{
case 0 :
Toast.makeText(getBaseContext(), "You have Clicked Radio 0", Toast.LENGTH_SHORT).show();
break;
case 1 :
Toast.makeText(getBaseContext(), "You have Clicked Radio 1", Toast.LENGTH_SHORT).show();
break;
case 2 :
Toast.makeText(getBaseContext(), "You have Clicked Radio 2", Toast.LENGTH_SHORT).show();
break;
default :
Toast.makeText(getBaseContext(), "Nothing Selected", Toast.LENGTH_SHORT).show();
break;
}
}
});
基本上,我已经完成了无线电按钮检测工作。但是,我不知道选择了哪一行(radiogroup)。必须要有办法。
我尝试使用getCheckedRadioButtonId()
,但它没有用。
我希望有人可以帮助我。
答案 0 :(得分:0)
尝试设置布局参数的重力
RelativeLayout.LayoutParams lp = new RelativeLayout.LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT);
lp.gravity = Gravity.LEFT;
rg.setLayoutParams(lp);
您可以根据您正在使用的ViewGroup更改布局面板的类型。
答案 1 :(得分:0)
试试这个,
int radioButtonID = rg.getCheckedRadioButtonId();
View radioButton = rg.findViewById(radioButtonID);
int index = rg.indexOfChild(radioButton);