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由於某種原因，我不明白爲什麼我的漢堡包圖標無法看到，但仍然可以選擇，並且所有東西都被隔開，好像它仍然存在。這也發生在我已經設置到註銷部分的另一側的3個水平點圖標上。Android工具欄圖標丟失，但仍然可以選擇
MainActivity.java
public class MainActivity extends AppCompatActivity implements
NavigationView.OnNavigationItemSelectedListener {
private Toolbar mToolbar;
private DrawerLayout mDrawerLayout;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Toolbar myToolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(myToolbar);
// Find our drawer view
mDrawerLayout = (DrawerLayout) findViewById(R.id.drawer_layout);
setupToolbarMenu();
setupNavigationDrawerMenu();
}
private void setupToolbarMenu() {
mToolbar = (Toolbar) findViewById(R.id.toolbar);
mToolbar.setTitle("Recovery Toolkit");
}
private void setupNavigationDrawerMenu() {
NavigationView navigationView = (NavigationView)
findViewById(R.id.nav_view);
mDrawerLayout = (DrawerLayout) findViewById(R.id.drawer_layout);
navigationView.setNavigationItemSelectedListener(this);
ActionBarDrawerToggle drawerToggle = new
ActionBarDrawerToggle(this,
mDrawerLayout,
mToolbar,
R.string.drawer_open,
R.string.drawer_close);
mDrawerLayout.addDrawerListener(drawerToggle);
drawerToggle.syncState();
}
activity_main.xml中
<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:context=".activity.SplashActivity"
tools:openDrawer="start">
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content">
<android.support.design.widget.CoordinatorLayout
android:id="@+id/main_content"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<android.support.design.widget.AppBarLayout
android:id="@+id/appbar"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:theme="@style/MyMaterialTheme">
<include layout="@layout/toolbar" />
</android.support.design.widget.AppBarLayout>
<android.support.v4.view.ViewPager
android:id="@+id/viewpager"
android:layout_width="match_parent"
android:layout_height="match_parent"
app:layout_behavior="@string/appbar_scrolling_view_behavior" />
</android.support.design.widget.CoordinatorLayout>
</LinearLayout>
<!-- Navigation View -->
<android.support.design.widget.NavigationView
android:id="@+id/nav_view"
android:layout_width="@dimen/nav_drawer_width"
android:layout_height="match_parent"
android:layout_gravity="start"
app:headerLayout="@layout/nav_header_main"
android:fitsSystemWindows="true"
app:menu="@menu/activity_main_drawer"
android:theme="@style/MyMaterialTheme"/>
toolbar.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.granitemountainbhc.recoverytoolkit.activity.MainActivity">
<android.support.design.widget.AppBarLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:theme="@style/MyMaterialTheme">
<android.support.v7.widget.Toolbar
android:id="@+id/toolbar"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="?attr/colorPrimary"
app:popupTheme="@style/MyMaterialTheme"
app:layout_scrollFlags="scroll|enterAlways" />
</android.support.design.widget.AppBarLayout>
<FrameLayout
android:id="@+id/frame"
android:layout_width="match_parent"
android:layout_height="match_parent"
app:layout_behavior="@string/appbar_scrolling_view_behavior">
</FrameLayout>
</android.support.design.widget.CoordinatorLayout>
nav_header_main.xml
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="@dimen/nav_drawer_width"
android:layout_height="190dp"
android:elevation="16dp"
xmlns:tools="http://schemas.android.com/tools"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:background="@drawable/background_header">
<LinearLayout
android:layout_width="@dimen/nav_drawer_width"
android:layout_height="match_parent"
android:orientation="vertical"
android:paddingBottom="15dp"
android:paddingStart="15dp"
android:paddingEnd="15dp"
android:layout_alignParentTop="true"
android:layout_alignParentStart="true"
android:layout_marginTop="56dp">
<ImageView
android:id="@+id/user_profile"
android:layout_width="@dimen/nav_drawer_profile_image_size"
android:layout_height="50dp"
android:gravity="bottom"
app:srcCompat="@drawable/ic_account_circle_white_64dp"
tools:ignore="ContentDescription" />
<ImageView
android:layout_width="@dimen/nav_drawer_width"
android:layout_height="wrap_content"
android:contentDescription="@string/item_desc" />
<TextView
android:id="@+id/txvName"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:layout_weight="3"
android:fontFamily="roboto-bold"
android:gravity="bottom"
android:text="@string/user_name"
android:textColor="@color/colorPrimaryText"
android:textSize="14sp" />
<TextView
android:id="@+id/txvEmail"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:layout_weight="1"
android:fontFamily="roboto"
android:gravity="bottom"
android:text="@string/email"
android:textColor="@color/colorPrimaryText"
android:textSize="14sp" />
</LinearLayout>
請在這裏貼出'R.layout.activity_main'。 –
發佈您的佈局工具欄xml文件和您的導航視圖xml文件以及正在使用抽屜根的活動 – Sam