【Android -- UI 开发】RadioButton/RadioGroup/CheckBox 的基本使用_android raidogrounp

一、RaidoButton

1. 效果图

2. activity_main.xml

<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context=".MainActivity">


    <TextView
        android:id="@+id/tv_desc"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginStart="12dp"
        android:layout_marginTop="14dp"
        android:text="@string/tv_desc"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="parent" />

    <RadioGroup
        android:id="@+id/rg_sex"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginStart="24dp"
        android:layout_marginTop="53dp"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="parent" >
        <RadioButton
            android:id="@+id/rb_male"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="@string/rb_male"/>

        <RadioButton
            android:id="@+id/rb_female"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="@string/rb_female"/>
    </RadioGroup>
</androidx.constraintlayout.widget.ConstraintLayout>
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3. MainActivity.java

public class MainActivity extends AppCompatActivity {
   

    @BindView(R.id.rg_sex)
    RadioGroup mSelectSex;
    @BindView(R.id.rb_male)
    RadioButton mMale;
    @BindView(R.id.rb_female)
    RadioButton mFemale;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
   
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        ButterKnife.bind(this);
    }

    @OnCheckedChanged({
   R.id.rb_male,R.id.rb_female})
    public void onRadioCheck(CompoundButton view,boolean isChanged) {
   
        switch (view.getId()) {
   
            case R.id.rb_male:
                if (isChanged) {
   
                    Toast.makeText(this,"you select male",Toast.LENGTH_SHORT).show();
                }
                break;

            case R.id
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