Android基础总结八:单选框RadioGroup,RadioButton的使用

布局：

"center_horizontal"
            android:orientation="horizontal" 
            android:id = "@+id/id_rg">

            id="@+id/radioButton1"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:text="男" />

            id="@+id/radioButton2"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:text="女" />

代码：

RadioGroup radioGroup = (RadioGroup)findViewById(R.id.id_rg);

radioGroup.setOnCheckedChangeListener(new RadioGroup.OnCheckedChangeListener() {
   public void onCheckedChanged(RadioGroup group, @IdRes int checkedId) {
                if (checkedId == R.id.radioButton1) 
                {
                    Toast.makeText(UIActivity1.this, "男", Toast.LENGTH_LONG).show();
                }
                else
                {
                    Toast.makeText(UIActivity1.this, "女", Toast.LENGTH_LONG).show();
                }             
   }
});

结果：