framlayout+viewpage

最新推荐文章于 2023-06-30 14:12:34 发布

chenxchhh

最新推荐文章于 2023-06-30 14:12:34 发布

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CC 4.0 BY-SA版权

本文链接：https://blog.youkuaiyun.com/chenxchhh/article/details/88187252

本文详细介绍了一种在安卓应用中实现导航栏与多个Fragment页面切换的方法。通过使用RadioGroup和FragmentTransaction，实现了不同页面之间的平滑切换。文章提供了完整的XML布局代码和Java逻辑处理流程，便于开发者理解和实现。

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//导航栏的图片

//布局

<FrameLayout
    android:id="@+id/pager"
    android:layout_width="match_parent"
    android:layout_height="0dp"
    android:layout_weight="1"
    />
<RadioGroup
    android:id="@+id/group"
    android:padding="5dp"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:orientation="horizontal"
    >
    <RadioButton
        android:id="@+id/b1"
        android:layout_width="0dp"
        android:layout_weight="1"
        android:text="首页1"
        android:button="@null"
        android:drawableTop="@drawable/sel"
        android:checked="true"
        android:gravity="center"
        android:layout_height="wrap_content" />
    <RadioButton
        android:id="@+id/b2"
        android:layout_width="0dp"
        android:layout_weight="1"
        android:text="首页2"
        android:button="@null"
        android:drawableTop="@drawable/sel"
        android:gravity="center"
        android:layout_height="wrap_content" />
    <RadioButton
        android:id="@+id/b3"
        android:layout_width="0dp"
        android:layout_weight="1"
        android:text="首页3"
        android:button="@null"
        android:drawableTop="@drawable/sel"
        android:gravity="center"
        android:layout_height="wrap_content" />
</RadioGroup>

public class MainActivity extends BaseActivity {

private RadioGroup group;
private Frag1 frag1;
private Frag2 frag2;
private Frag3 frag3;
private FragmentManager manager;

@Override
protected int bindLayout() {
    return R.layout.activity_main;
}

@Override
protected void initView() {
    group = findViewById(R.id.group);

}

@Override
protected void initData() {
    frag1 = new Frag1();
    frag2 = new Frag2();
    frag3 = new Frag3();
    manager = getSupportFragmentManager();
    manager.beginTransaction()
            .add(R.id.pager,frag1)
            .add(R.id.pager,frag2)
            .add(R.id.pager,frag3)
            .show(frag1)
            .hide(frag2)
            .hide(frag3)
            .commit();

}

@Override
protected void initEvent() {
    group.setOnCheckedChangeListener(new RadioGroup.OnCheckedChangeListener() {
        @Override
        public void onCheckedChanged(RadioGroup group, int checkedId) {
            FragmentTransaction beginTransaction = manager.beginTransaction();
            switch (checkedId){
                case 0:
                    beginTransaction.show(frag1)
                            .hide(frag2)
                            .hide(frag3);
                    break;
                case 1:
                    beginTransaction.show(frag2)
                            .hide(frag1)
                            .hide(frag3);
                    break;
                case 2:
                    beginTransaction.show(frag3)
                            .hide(frag2)
                            .hide(frag1);
                    break;
            }
            beginTransaction.commit();
        }
    });
}