RadioGroup的使用非常简单,只是一般情况下,只能是横向排列或竖向排列.如果让多横排列的的就不是那么简单的了。
也许有童鞋该说了,将RadioButton写到LineLayout中不久行了吗?经过检验确实可以那样做,刚开始我也是这样做到.不过运行起来发现了了一个bug---单选按钮不在是单选了.而且选择事件不会被监听到.这就要求我们去想办法了.其实实现起来也不难.只要多用几个RadioGroup就可以了(要在代码中处理一些事件)。
上代码:
1.xml中的布局:
- <RelativeLayout
- android:id="@+id/main_tab_container"
- android:layout_width="fill_parent"
- android:layout_height="fill_parent"
- android:paddingTop="30dp">
- <RadioGroup
- android:id="@+id/radio1"
- android:layout_width="match_parent"
- android:layout_height="60dp"
- android:layout_margin="5dp"
- android:orientation="horizontal">
- <RadioButton
- android:id="@+id/rb_1"
- android:layout_width="0dp"
- android:layout_height="wrap_content"
- android:layout_weight="1"
- android:textSize="@dimen/RB_text_size"
- android:text="GBP英镑" />
- <RadioButton
- android:id="@+id/rb_2"
- android:layout_width="0dp"
- android:layout_height="wrap_content"
- android:layout_weight="1"
- android:textSize="@dimen/RB_text_size"
- android:text="HKD港元" />
- <RadioButton
- android:id="@+id/rb_3"
- android:layout_width="0dp"
- android:layout_height="wrap_content"
- android:layout_weight="1"
- android:textSize="@dimen/RB_text_size"
- android:text="USD美元Ԫ" />
- </RadioGroup>
- <RadioGroup
- android:id="@+id/radio2"
- android:layout_width="match_parent"
- android:layout_height="60dp"
- android:layout_below="@+id/radio1"
- android:layout_margin="5dp"
- android:orientation="horizontal">
- <RadioButton
- android:id="@+id/rb_4"
- android:layout_width="0dp"
- android:layout_height="wrap_content"
- android:layout_weight="1"
- android:textSize="@dimen/RB_text_size"
- android:text="CHF瑞士法郎" />
- <RadioButton
- android:id="@+id/rb_5"
- android:layout_width="0dp"
- android:layout_height="wrap_content"
- android:layout_weight="1"
- android:textSize="@dimen/RB_text_size"
- android:text="SGD新加坡元" />
- <RadioButton
- android:id="@+id/rb_6"
- android:layout_width="0dp"
- android:layout_height="wrap_content"
- android:layout_weight="1"
- android:textSize="@dimen/RB_text_size"
- android:text="SEK瑞典克朗" />
- </RadioGroup>
- <RadioGroup
- android:id="@+id/radio3"
- android:layout_width="match_parent"
- android:layout_height="60dp"
- android:layout_below="@+id/radio2"
- android:layout_margin="5dp"
- android:orientation="horizontal">
- <RadioButton
- android:id="@+id/rb_7"
- android:layout_width="0dp"
- android:layout_height="wrap_content"
- android:layout_weight="1"
- android:textSize="@dimen/RB_text_size"
- android:text="JPY日元" />
- <RadioButton
- android:id="@+id/rb_8"
- android:layout_width="0dp"
- android:layout_height="wrap_content"
- android:layout_weight="1"
- android:textSize="@dimen/RB_text_size"
- android:text="CAD加拿大元Ԫ" />
- <RadioButton
- android:id="@+id/rb_9"
- android:layout_width="0dp"
- android:layout_height="wrap_content"
- android:layout_weight="1"
- android:textSize="@dimen/RB_text_size"
- android:text="AUD澳大利亚元" />
- </RadioGroup>
- <RadioGroup
- android:id="@+id/radio4"
- android:layout_width="match_parent"
- android:layout_height="60dp"
- android:layout_below="@+id/radio3"
- android:layout_margin="5dp"
- android:orientation="horizontal">
- <RadioButton
- android:id="@+id/rb_10"
- android:layout_width="wrap_content"
- android:layout_height="wrap_content"
- android:textSize="@dimen/RB_text_size"
- android:text="EOR欧元Ԫ" />
- </RadioGroup>
- </RelativeLayout>
这样就实现了多行布局,这只是我布局中的一部分,其中 android:textSize=”@dimen/RB_text_size” 为自己定义的字体大小.
2.activity中的使用以及处理:
- public class SelectMoneyActivity extends BaseActivity {
- String strBtnSelected = ""; //记录选择的是哪个选项
- private RadioGroup rg1,rg2,rg3,rg4;
- private RadioButton rb_1,rb_2,rb_3,rb_4,rb_5,rb_6,rb_7,rb_8,rb_9,rb_10;
- @Override
- protected void onCreate(Bundle savedInstanceState) {
- super.onCreate(savedInstanceState);
- setContentView(R.layout.activity_select_money);
- initView();
- }
- private void initView() {
- rg1 = (RadioGroup) findViewById(R.id.radio1);
- rg2 = (RadioGroup) findViewById(R.id.radio2);
- rg3 = (RadioGroup) findViewById(R.id.radio3);
- rg4 = (RadioGroup) findViewById(R.id.radio4);
- rb_1 = (RadioButton) findViewById(R.id.rb_1);
- rb_2 = (RadioButton) findViewById(R.id.rb_2);
- rb_3 = (RadioButton) findViewById(R.id.rb_3);
- rb_4 = (RadioButton) findViewById(R.id.rb_4);
- rb_5 = (RadioButton) findViewById(R.id.rb_5);
- rb_6 = (RadioButton) findViewById(R.id.rb_6);
- rb_7 = (RadioButton) findViewById(R.id.rb_7);
- rb_8 = (RadioButton) findViewById(R.id.rb_8);
- rb_9 = (RadioButton) findViewById(R.id.rb_9);
- rb_10 = (RadioButton) findViewById(R.id.rb_10);
- btn_back = (Button) findViewById(R.id.btn_back);
- btn_next = (Button) findViewById(R.id.btn_next);
- //创建监听器,为每个RadioButton注册监听
- BtnSelected btnSelected1 = new BtnSelected("1");
- BtnSelected btnSelected2 = new BtnSelected("2");
- BtnSelected btnSelected3 = new BtnSelected("3");
- BtnSelected btnSelected4 = new BtnSelected("4");
- BtnSelected btnSelected5 = new BtnSelected("5");
- BtnSelected btnSelected6 = new BtnSelected("6");
- BtnSelected btnSelected7 = new BtnSelected("7");
- BtnSelected btnSelected8 = new BtnSelected("8");
- BtnSelected btnSelected9 = new BtnSelected("9");
- BtnSelected btnSelected10 = new BtnSelected("10");
- rb_1.setOnClickListener(btnSelected1);
- rb_2.setOnClickListener(btnSelected2);
- rb_3.setOnClickListener(btnSelected3);
- rb_4.setOnClickListener(btnSelected4);
- rb_5.setOnClickListener(btnSelected5);
- rb_6.setOnClickListener(btnSelected6);
- rb_7.setOnClickListener(btnSelected7);
- rb_8.setOnClickListener(btnSelected8);
- rb_9.setOnClickListener(btnSelected9);
- rb_10.setOnClickListener(btnSelected10);
- //点击事件的监听器
- public class BtnSelected implements View.OnClickListener {
- private String btnId;
- public BtnSelected(String str) {
- btnId = str;
- }
- @Override
- public void onClick(View v) {
- strBtnSelected = btnId; //选择的某一项
- isSelect = true;
- //点击了第一行 ,就把另外行的点击项清空
- if (btnId.equals("1") || btnId.equals("2") || btnId.equals("3")) {
- rg2.clearCheck();
- rg3.clearCheck();
- rg4.clearCheck();
- } else if (btnId.equals("4") || btnId.equals("5") || btnId.equals("6")) {
- rg1.clearCheck();
- rg3.clearCheck();
- rg4.clearCheck();
- } else if (btnId.equals("7") || btnId.equals("8") || btnId.equals("9")) {
- rg1.clearCheck();
- rg2.clearCheck();
- rg4.clearCheck();
- } else {
- rg1.clearCheck();
- rg2.clearCheck();
- rg3.clearCheck();
- }
- }
- }
- }
已经搞定.还有一种方法就是自定义RadioGroup实现,不过这种有点复杂.我还是下班回家了.
补充:
使用RadioGroup.setcheck(RadioButton的id)初始化默认选中A按钮,但是监听不会执行的问题