Android实现单项、多项选择操作

本文实例为大家分享了Android实现单项、多项选择操作的相关代码，供大家参考，具体内容如下

1、单项选择
1.1.布局

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
 xmlns:tools="http://schemas.android.com/tools"
 android:layout_width="match_parent"
 android:layout_height="match_parent"
 android:orientation="vertical"
 tools:context="com.rj141.sb.kongjian.DateActivity"> 

 <TextView
  android:layout_marginLeft="10dp"
  android:layout_width="wrap_content"
  android:layout_height="wrap_content"
  android:text="2+3="
  android:textSize="22dp"
  /> 

 <RadioGroup
  android:layout_marginLeft="20dp"
  android:layout_width="wrap_content"
  android:layout_height="wrap_content">
  <RadioButton
   android:layout_width="wrap_content"
   android:layout_height="wrap_content"
   android:text="A.2"
   android:id="@+id/rb1"
   />
  <RadioButton
   android:layout_width="wrap_content"
   android:layout_height="wrap_content"
   android:text="B.3"
   android:id="@+id/rb2"
   />
  <RadioButton
   android:layout_width="wrap_content"
   android:layout_height="wrap_content"
   android:text="C.4"
   android:id="@+id/rb3"
   />
  <RadioButton
   android:layout_width="wrap_content"
   android:layout_height="wrap_content"
   android:text="D.5"
   android:id="@+id/rb4"
   />
 </RadioGroup> 

 <Button
  android:id="@+id/submit"
  android:layout_width="match_parent"
  android:layout_height="wrap_content"
  android:text="提交"/>
</LinearLayout>

1.2.Java文件

public class SingChoose extends AppCompatActivity {
 private Button btn;
 private RadioButton rbD;
 @Override
 protected void onCreate(Bundle savedInstanceState) {
  super.onCreate(savedInstanceState);
  setContentView(R.layout.sing_choose); 

  rbD= (RadioButton) this.findViewById(R.id.rb4);
  btn= (Button) this.findViewById(R.id.submit);
  btn.setOnClickListener(new View.OnClickListener() {
   @Override
   public void onClick(View v) {
    if(rbD.isChecked()){
     Toast.makeText(SingChoose.this,"正确，请加五分",Toast.LENGTH_SHORT).show();
    }
    else {
     Toast.makeText(SingChoose.this,"错误，请减五分",Toast.LENGTH_SHORT).show();
    }
   }
  });
 }
} 

效果图：

2、多项选择
2.1.布局

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
 xmlns:tools="http://schemas.android.com/tools"
 android:layout_width="match_parent"
 android:layout_height="match_parent"
 android:orientation="vertical"
 tools:context="com.rj141.sb.kongjian.CheckChoose"> 

 <TextView
  android:layout_width="wrap_content"
  android:layout_height="wrap_content"
  android:textSize="20dp"
  android:text="你喜欢下列哪些物品？"
  /> 

 <CheckBox
  android:layout_width="wrap_content"
  android:layout_height="wrap_content"
  android:text="巧克力"
  android:id="@+id/cb1" /> 

 <CheckBox
  android:layout_width="wrap_content"
  android:layout_height="wrap_content"
  android:text="冰淇淋"
  android:id="@+id/cb2" /> 

 <CheckBox
  android:layout_width="wrap_content"
  android:layout_height="wrap_content"
  android:text="蛋糕"
  android:id="@+id/cb3" /> 

 <CheckBox
  android:layout_width="wrap_content"
  android:layout_height="wrap_content"
  android:text="啤酒"
  android:id="@+id/cb4" /> 

 <CheckBox
  android:layout_width="wrap_content"
  android:layout_height="wrap_content"
  android:text="肉"
  android:id="@+id/cb5" /> 

 <TextView
  android:layout_width="wrap_content"
  android:layout_height="wrap_content"
  android:textSize="18dp"
  android:id="@+id/tv" /> 

</LinearLayout>

2.2.Java文件

public class CheckChoose extends AppCompatActivity implements CompoundButton.OnCheckedChangeListener { 

 private CheckBox cb1,cb2,cb3,cb4,cb5;
 private TextView tv;
 @Override
 protected void onCreate(Bundle savedInstanceState) {
  super.onCreate(savedInstanceState);
  setContentView(R.layout.check_choose); 

  tv= (TextView) this.findViewById(R.id.tv);
  cb1= (CheckBox) this.findViewById(R.id.cb1);
  cb2= (CheckBox) this.findViewById(R.id.cb2);
  cb3= (CheckBox) this.findViewById(R.id.cb3);
  cb4= (CheckBox) this.findViewById(R.id.cb4);
  cb5= (CheckBox) this.findViewById(R.id.cb5);
  cb1.setOnCheckedChangeListener(this);
  cb2.setOnCheckedChangeListener(this);
  cb3.setOnCheckedChangeListener(this);
  cb4.setOnCheckedChangeListener(this);
  cb5.setOnCheckedChangeListener(this);
 } 

 @Override
 public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
  String str="您喜欢：";
  if(cb1.isChecked()){
   str+=cb1.getText()+",";
  }
  if(cb2.isChecked()){
   str+=cb2.getText()+",";
  }
  if(cb3.isChecked()){
   str+=cb3.getText()+",";
  }
  if(cb4.isChecked()){
   str+=cb4.getText()+",";
  }
  if(cb5.isChecked()){
   str+=cb5.getText()+",";
  }
  tv.setText(str);
 }
} 

效果图：

以上就是本文的全部内容，希望对大家学习Android软件编程有所帮助。