如何在Android中使用Fragment中的按钮调用页面？

如何创建MainWeb类

这是我的XML

public class Menu1 extends Fragment implements View.OnClickListener {

    public static Button button_sbm;
    @Nullable
    @Override
    public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
        //returning our layout file
        //change R.layout.yourlayoutfilename for each of your fragments
       /* return inflater.inflate(R.layout.fragment_menu_1, container, false);*/
        View myView = inflater.inflate(R.layout.fragment_menu_1, container, false);
        button_sbm = (Button) myView.findViewById(R.id.button);
        button_sbm.setOnClickListener(this);
        return myView;
    }


    @Override
    public void onViewCreated(View view, @Nullable Bundle savedInstanceState) {
        super.onViewCreated(view, savedInstanceState);
        //you can set the title for your toolbar here for different fragments different titles
        getActivity().setTitle("Home");
    }



    @Override
    public void onClick(View v) {

        Intent intent = new Intent(getActivity(), MainWeb.class);
        startActivity(intent);
    }
}

碎片到活动 怎么办

当我点击按钮时，它会给我一条信息

“不幸的是，应用程序已停止”

---

确保AndroidManifest.xml中提到了您的MainWeb活动类

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不要在片段或活动中创建按钮或任何UI小部件的静态实例。这可能会导致内存泄漏。

什么是MainWeb.class？

    <ImageView
        android:id="@+id/imageView"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        app:srcCompat="@drawable/yoga"
        android:layout_alignParentTop="true" />

    <Button
        android:id="@+id/button"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginBottom="30dp"
        android:text="Goto Website"
        android:layout_alignParentBottom="true"
        android:layout_centerHorizontal="true" />