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:
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