使用RadioGroup與RadioButton實現單選效果
阿新 • • 發佈:2019-02-16
<?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:id="@+id/container" android:layout_width="match_parent" android:layout_height="match_parent" > <RadioGroup android:orientation="horizontal" android:id="@+id/radioGroup1" android:layout_width="wrap_content" android:layout_height="wrap_content" > <RadioButton android:id="@+id/radio0" android:layout_width="wrap_content" android:layout_height="wrap_content" android:checked="true" android:text="男" /> <RadioButton android:id="@+id/radio1" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="女" /> </RadioGroup> </LinearLayout>
package com.demo2.demo2; import android.app.Activity; import android.os.Bundle; import android.util.Log; import android.widget.RadioGroup; import android.widget.RadioGroup.OnCheckedChangeListener; public class MainActivity extends Activity implements OnCheckedChangeListener { private RadioGroup rg; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); rg = (RadioGroup) findViewById(R.id.radioGroup1); /* * 實現RadioGroup的監聽事件 */ rg.setOnCheckedChangeListener(this); } @Override public void onCheckedChanged(RadioGroup group, int checkedId) { switch (checkedId) { case R.id.radio0: Log.i("tag", "你當前是一個男孩"); break; case R.id.radio1: Log.i("tag", "你當前是一個女孩"); break; default: break; } } }