Question

您好我是新的Android开发人员，我尝试做下一件事但没有成功我有活动，在活动中我有片段，在里面我有**查看寻呼机图像厨房**。

问题是，当我运行应用程序时，带有片段的活动和应用程序内部的库已崩溃但是当我试图分别用画廊和片段运行活动时，它们工作正常有什么问题？在这里我的代码：

活动

公共类infoActivity扩展了AppCompatActivity {

@Override
protected void onCreate(@Nullable Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.hotel_info);

}

}

活动XML

<?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:orientation="vertical"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:weightSum="1">

    <fragment
        android:layout_width="match_parent"
        android:layout_height="200dp"
        android:name="co.checkit.mobile.checkit.Model.gallery_fragment"
        tools:layout="@layout/imagegalleryfragment"
        android:id="@+id/fragmentid" />


</LinearLayout>

你可以看到我在活动中设置片段

片段类

public class Hotelsgallery_fragment extends Fragment {


    ImageAdapter adapter;
    ViewPager viewPager;

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {

        View myFragmentView = inflater.inflate(R.layout.imagegalleryfragment, container, false);
        viewPager = (ViewPager)myFragmentView.findViewById(R.id.viewpager);
        adapter = new ImageAdapter(this);
        viewPager.setAdapter(adapter);

        return myFragmentView;
    }
}


i set the gallery inside the fragment class

片段XML

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:orientation="vertical">

<android.support.v4.view.ViewPager
    android:layout_width="match_parent"
    android:layout_height="200dp"
    android:id="@+id/viewpager">



</android.support.v4.view.ViewPager>

    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:textAppearance="?android:attr/textAppearanceLarge"
        android:text="Large Text"
        android:id="@+id/textView4"
        android:layout_gravity="center_horizontal" />


</LinearLayout>

Answer 1

而不是将片段放在xml中，放置框架布局

<?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:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:weightSum="1">

<FrameLayout
    android:layout_width="match_parent"
    android:layout_height="200dp"
    android:id="@+id/frame_layout_id" />


</LinearLayout>

在活动中创建片段，使用帧布局ID

进行扩充

        YourFragment fragment = new YourFragment();
        FragmentTransaction ft = getSupportFragmentManager()
                .beginTransaction();
        ft.add(R.id.frame_layout_id, fragment);

        ft.commit();

片段内的ViewPager图库

1 个答案: