android 单选（RadioGroup ）复选（CheckBox）旋钮的应用
android 单选（RadioGroup ）复选（CheckBox）按钮的应用第一步，还是创建android项目。第二步，修改已经生成的re
android 单选（RadioGroup ）复选（CheckBox）按钮的应用
第一步，还是创建android项目。
第二步，修改已经生成的res/layout/main.xml
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<?xml?version="1.0"?encoding="utf-8"?>??<LinearLayout?xmlns:android="http://schemas.android.com/apk/res/android"??????android:orientation="vertical"??????android:layout_width="fill_parent"??????android:layout_height="fill_parent"??>??????<CheckBox????????????android:id="@+id/checkBox"??????????android:layout_width="wrap_content"??????????android:layout_height="wrap_content"??????????android:text="复选框1"?/>??????<CheckBox????????????android:id="@+id/checkBox1"??????????android:layout_width="wrap_content"??????????android:layout_height="wrap_content"??????????android:text="复选框2"?/>??????<RadioGroup???????????android:id="@+id/radioGroup"??????????android:orientation="vertical"??????????android:layout_width="fill_parent"??????????android:layout_height="fill_parent">??????????<RadioButton?android:id="@+id/radion1"??????????????android:layout_width="wrap_content"?android:layout_height="wrap_content"??????????????android:text="北京"?/>??????????<RadioButton?android:id="@+id/radion2"??????????????android:layout_width="wrap_content"?android:layout_height="wrap_content"??????????????android:text="天津"?/>??????????<RadioButton?android:id="@+id/radion3"??????????????android:layout_width="wrap_content"?android:layout_height="wrap_content"??????????????android:text="上海"?/>??????????<RadioButton?android:id="@+id/radion4"??????????????android:layout_width="wrap_content"?android:layout_height="wrap_content"??????????????android:text="重庆"?/>??????</RadioGroup>??</LinearLayout>???
第三步，添加主要代码
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import?android.app.Activity;??import?android.os.Bundle;??import?android.widget.CheckBox;??import?android.widget.CompoundButton;??import?android.widget.RadioButton;??import?android.widget.RadioGroup;??import?android.widget.CompoundButton.OnCheckedChangeListener;??????public?class?checkBox?extends?Activity?implements?OnCheckedChangeListener??{??????/**?Called?when?the?activity?is?first?created.?*/??????????????????RadioButton??r1?=?null;??????RadioButton??r2?=?null;??????RadioButton??r3?=?null;??????RadioButton??r4?=?null;????????????@Override??????public?void?onCreate(Bundle?savedInstanceState)?{??????????super.onCreate(savedInstanceState);??????????setContentView(R.layout.main);????????????????????CheckBox?checkBox?=?(CheckBox)?findViewById(R.id.checkBox);???????????CheckBox?checkBox1?=?(CheckBox)?findViewById(R.id.checkBox1);??????????//获得单选按钮组??????????RadioGroup?radioGroup?=?(RadioGroup)findViewById(R.id.radioGroup);??????????//获得单选按钮??????????r1?=?(RadioButton?)findViewById(R.id.radion1);??????????r2?=?(RadioButton?)findViewById(R.id.radion2);??????????r3?=?(RadioButton?)findViewById(R.id.radion3);??????????r4?=?(RadioButton?)findViewById(R.id.radion4);????????????????????checkBox.setChecked(true);?????????????????????r1.setClickable(true);??????????//监听多选按钮??????????checkBox.setOnCheckedChangeListener(this);??????????checkBox1.setOnCheckedChangeListener(this);??????????//监听单选按钮??????????radioGroup.setOnCheckedChangeListener(mChangeRadio);????????????????} ?//参考
??http://blog.csdn.net/applezhengxd/archive/2010/05/06/5563512.aspx
