在屏幕中显示单选框

Myth丶恋晨 2022-09-24 04:20 213阅读 0赞

<?xml version="1.0" encoding="utf-8"?>
    <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
        android:layout_width="fill_parent"
        android:layout_height="fill_parent"
        android:orientation="vertical">
        <RadioGroup
            android:layout_width="fill_parent"
            android:layout_height="wrap_content"
            android:orientation="vertical"
            android:checkedButton="@+id/lunch"
            android:id="@+id/menu">
            <RadioButton
                android:text="AA"
                android:id="@+id/breakfast"
                />
            <RadioButton
                android:text="BB"
                android:id="@id/lunch" />
            <RadioButton
                android:text="CC"
                android:id="@+id/dinner" />
            <RadioButton
                android:text="DD"
                android:id="@+id/all" />
        </RadioGroup>
        <Button
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="清除"
            android:id="@+id/clear" />
    </LinearLayout>

/* 
     * Copyright (C) 2007 Google Inc.
     *
     * Licensed under the Apache License, Version 2.0 (the "License");
     * you may not use this file except in compliance with the License.
     * You may obtain a copy of the License at
     *
     *      http://www.apache.org/licenses/LICENSE-2.0
     *
     * Unless required by applicable law or agreed to in writing, software
     * distributed under the License is distributed on an "AS IS" BASIS,
     * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     * See the License for the specific language governing permissions and
     * limitations under the License.
     */
    
    package m.usewidget;
    
    
    import m.usewidget.R;
    
    import android.app.Activity;
    import android.os.Bundle;
    import android.view.View;
    import android.widget.Button;
    import android.widget.RadioGroup;
    
    public class RadioGroupActivity extends Activity implements View.OnClickListener {
        private RadioGroup mRadioGroup;
    
        @Override
        protected void onCreate(Bundle savedInstanceState) {
            super.onCreate(savedInstanceState);
            setContentView(R.layout.radio_group);
            setTitle("RadioGroupActivity");
            mRadioGroup = (RadioGroup) findViewById(R.id.menu);
            Button clearButton = (Button) findViewById(R.id.clear);
            clearButton.setOnClickListener(this);
        }
    
     
    
        public void onClick(View v) {
            mRadioGroup.clearCheck();
        }
    }