Android開發 使用Fragment做界面切換

Android開發 使用Fragment做界面切換

1、準備需要切換的界面，建立fragment01、02、03，建立三個類進行界面的跳轉

2、activity_main.xml

<FrameLayout
    android:id="@+id/pager"
    android:layout_width="match_parent"
    android:layout_height="0dp"
    android:layout_weight="1"
    android:text="TextView" />

<RadioGroup
    android:id="@+id/radiogroup"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:orientation="horizontal">

    <RadioButton
        android:id="@+id/radioButton"
        android:layout_width="0dp"
        android:layout_height="wrap_content"
        android:layout_weight="1"
        android:button="@null"
        android:drawableTop="@drawable/weixin"
        android:gravity="center"
        android:text="A" />

    <RadioButton
        android:id="@+id/radioButton2"
        android:layout_width="0dp"
        android:layout_height="wrap_content"
        android:layout_weight="1"
        android:button="@null"
        android:drawableTop="@drawable/tongxunlu"
        android:gravity="center"
        android:text="B" />

    <RadioButton
        android:id="@+id/radioButton3"
        android:layout_width="0dp"
        android:layout_height="wrap_content"
        android:layout_weight="1"
        android:button="@null"
        android:drawableTop="@drawable/weixin"
        android:gravity="center"
        android:text="C" />
</RadioGroup>
           

3、MainActivity

private FrameLayout frameLayout;

private RadioGroup group;

private ArrayList list;

private Fragment01 fragment01;

private Fragment fragment02, fragment03;

private FragmentManager manager;

protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.interface_switch);

    //初始化控件
    frameLayout = findViewById(R.id.pager);
    group = findViewById(R.id.radiogroup);
    //擷取事務
    manager = getSupportFragmentManager();
    //開啟事務
    FragmentTransaction transaction = manager.beginTransaction();

    fragment01 = new Fragment01();
    fragment02 = new Fragment02();
    fragment03 = new Fragment03();

    //事務添加
    transaction.add(R.id.pager, fragment01);
    transaction.add(R.id.pager, fragment02);
    transaction.add(R.id.pager, fragment03);

    //展示一個界面隐藏另外兩個
    transaction.show(fragment01).hide(fragment02).hide(fragment03);
    //送出事務
    transaction.commit();
    hideBottomUIMenu();

    group.check(group.getChildAt(0).getId());

    group.setOnCheckedChangeListener(new RadioGroup.OnCheckedChangeListener() {
        @Override
        public void onCheckedChanged(RadioGroup radioGroup, int i) {
            //開啟事務
            FragmentTransaction transaction1 = manager.beginTransaction();
            //選擇
            switch (i) {
                case R.id.radioButton:
                    //展示一個界面，隐藏另外兩個界面
                    transaction1.show(fragment01).hide(fragment02).hide(fragment03);
                    break;
                case R.id.radioButton2:
                    transaction1.show(fragment02).hide(fragment01).hide(fragment03);
                    break;
                case R.id.radioButton3:
                    transaction1.show(fragment03).hide(fragment02).hide(fragment01);
                    break;
            }
            hideBottomUIMenu();
            //送出事務
            transaction1.commit();

        }
    });
}
//隐藏虛拟按鍵
protected void hideBottomUIMenu() {
    if (Build.VERSION.SDK_INT > 11 && Build.VERSION.SDK_INT < 19) { // lower api
        View v = this.getWindow().getDecorView();
        v.setSystemUiVisibility(View.GONE);
    } else if (Build.VERSION.SDK_INT >= 19) {
        //for new api versions.
        View decorView = getWindow().getDecorView();
        int uiOptions = View.SYSTEM_UI_FLAG_HIDE_NAVIGATION
                | View.SYSTEM_UI_FLAG_IMMERSIVE_STICKY | View.SYSTEM_UI_FLAG_FULLSCREEN;
        decorView.setSystemUiVisibility(uiOptions);
    }
}