每次创建新活动时,Android App栏菜单都会消失

时间:2017-02-08 01:42:12

标签: android android-intent appbar menu-items

为什么每次我开展新活动都是这样?

e.g。代码:

Intent intent = new Intent(getApplicationContext(), NextActivity.class;
startActivity(intent);

应用栏菜单项目消失了吗? :(

每次我打开一个新活动时,有人能告诉我该怎么做,同样的应用栏和菜单总是存在吗?

编辑:

**activity.xml**



                <?xml version="1.0" encoding="utf-8"?>
            <android.support.v4.widget.DrawerLayout
                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:id="@+id/drawer_layout"
                android:layout_width="match_parent"
                android:layout_height="match_parent"
                android:fitsSystemWindows="true"
                tools:openDrawer="start">

                <include
                    layout="@layout/app_bar_main"
                    android:layout_width="match_parent"
                    android:layout_height="match_parent" />

                <android.support.design.widget.NavigationView
                    android:id="@+id/nav_view"
                    android:layout_width="wrap_content"
                    android:layout_height="400dp"
                    android:layout_gravity="start"
                    android:fitsSystemWindows="true"
                    app:headerLayout="@layout/nav_header_main"
                    app:menu="@menu/activity_main_drawer" />

        </android.support.v4.widget.DrawerLayout>


**activity_intention.xml:**
    <?xml version="1.0" encoding="utf-8"?>
    <android.support.design.widget.CoordinatorLayout
        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:id="@+id/drawer_layout"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:fitsSystemWindows="true"
        tools:openDrawer="start">




*I'll also include the app_bar_main.xml*




        <?xml version="1.0" encoding="utf-8"?>
        <android.support.design.widget.CoordinatorLayout
            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"
            android:fitsSystemWindows="true"
            tools:context="com.example.beminix.dcar.MainActivity">

            <android.support.design.widget.AppBarLayout
                android:layout_height="wrap_content"
                android:layout_width="match_parent"
                android:theme="@style/AppTheme.AppBarOverlay">

                <android.support.v7.widget.Toolbar
                    android:id="@+id/toolbar"
                    android:layout_width="match_parent"
                    android:layout_height="?attr/actionBarSize"
                    android:background="?attr/colorPrimary"
                    app:popupTheme="@style/AppTheme.PopupOverlay" />

            </android.support.design.widget.AppBarLayout>

            <include layout="@layout/content_main"/>



        </android.support.design.widget.CoordinatorLayout>

The toolbar that I want to keep using The 3 menu icons are gone so as the title

1 个答案:

答案 0 :(得分:0)

这是不同的解决方案,但在我的项目中工作当前。使用Activity中的片段和点击调用另一个片段使用两个片段你将获得1个菜单栏,如果你想要活动,你必须为每个活动制作动作栏