使用RadioGroup控件实现选项选择功能

分手后的思念是犯贱 2022-07-20 12:13 194阅读 0赞

<?xml version="1.0" encoding="utf-8"?>
    <resources>
    
        <string name="app_name">test</string>
        <string name="hello_world">Hello world!</string>
        <string name="action_settings">Settings</string>
        <string name="hello"></string>
      <string name="tr_radio_op1">男生</string>
      <string name="tr_radio_op2">女生</string>
      <string name="str_radio_question1">请问你是？</string>
    </resources>

<?xml version="1.0" encoding="utf-8"?>
    <AbsoluteLayout xmlns:android="http://schemas.android.com/apk/res/android"
      android:orientation="vertical"
      android:layout_width="fill_parent"
      android:layout_height="fill_parent"
      >
      <TextView
        android:id="@+id/myTextView"
        android:layout_width="228px"
        android:layout_height="49px"
        android:text="@string/str_radio_question1"
        android:textSize="30sp"    
        android:layout_x="37px"
        android:layout_y="3px"
      />   
      <RadioGroup
        android:id="@+id/myRadioGroup"
        android:layout_width="137px"
        android:layout_height="216px"
        android:orientation="vertical"
        android:layout_x="3px"
        android:layout_y="54px" 
        >
        <RadioButton
          android:id="@+id/myRadioButton1"
          android:layout_width="wrap_content"
          android:layout_height="wrap_content"
          android:text="@string/tr_radio_op1"
        />
        <RadioButton
          android:id="@+id/myRadioButton2"
          android:layout_width="wrap_content"
          android:layout_height="wrap_content"
          android:text="@string/tr_radio_op2"
        />
        </RadioGroup>    
    </AbsoluteLayout>

package com.example.test;
    import android.app.Activity;
    import android.os.Bundle;
    import android.view.KeyEvent;
    import android.view.Menu;
    import android.view.MenuItem;
    import android.view.View;
    import android.widget.EditText;
    import android.widget.RadioButton;
    import android.widget.RadioGroup;
    import android.widget.TextView;
    
    
    public class MainActivity extends Activity {
    
    	public TextView mTextView1;
    	  public RadioGroup mRadioGroup1; 
    	  public RadioButton mRadio1,mRadio2;
        @Override
        protected void onCreate(Bundle savedInstanceState) {
            super.onCreate(savedInstanceState);
            setContentView(R.layout.activity_main);
            mTextView1 = (TextView) findViewById(R.id.myTextView);
            mRadioGroup1 = (RadioGroup) findViewById(R.id.myRadioGroup);
            mRadio1 = (RadioButton) findViewById(R.id.myRadioButton1);
            mRadio2 = (RadioButton) findViewById(R.id.myRadioButton2); 
              
            /*RadioGroup用OnCheckedChangeListener来运行*/ 
            mRadioGroup1.setOnCheckedChangeListener(mChangeRadio);
          } 
           
          private RadioGroup.OnCheckedChangeListener mChangeRadio = new 
                   RadioGroup.OnCheckedChangeListener()
          { 
            public void onCheckedChanged(RadioGroup group, int checkedId)
            { 
              // TODO Auto-generated method stub 
              if(checkedId==mRadio1.getId())
              { 
                /*把mRadio1的内容传到mTextView1*/
                mTextView1.setText(mRadio1.getText());
              } 
              else if(checkedId==mRadio2.getId()) 
              { 
                /*把mRadio2的内容传到mTextView1*/
                mTextView1.setText(mRadio2.getText()); 
              }       
            } 
          };
    
    
        @Override
        public boolean onCreateOptionsMenu(Menu menu) {
            // Inflate the menu; this adds items to the action bar if it is present.
            getMenuInflater().inflate(R.menu.main, menu);
            return true;
        }
    
        @Override
        public boolean onOptionsItemSelected(MenuItem item) {
            // Handle action bar item clicks here. The action bar will
            // automatically handle clicks on the Home/Up button, so long
            // as you specify a parent activity in AndroidManifest.xml.
            int id = item.getItemId();
            if (id == R.id.action_settings) {
                return true;
            }
            return super.onOptionsItemSelected(item);
        }
    }