android - Logo disappear from toolbar after while -


when install app seems ok. when return after moment there no logo in toolbar. there black. ok in android 4.4, galaxy s4 upgraded android 5.0.1 , there bug in app. don't know why please?

v21\styles.xml

<style name="apptheme" parent="theme.appcompat.light.noactionbar">         <!-- customize theme here. -->         <item name="colorprimary">@color/colorprimary</item>         <item name="colorprimarydark">@color/colorprimarydark</item>         <item name="coloraccent">@color/coloraccent</item>         <item name="windowactionmodeoverlay">true</item>         <item name="android:statusbarcolor">@color/colorprimarydark</item> </style>

toolbar.xml

<android.support.v7.widget.toolbar xmlns:android="http://schemas.android.com/apk/res/android"     xmlns:app="http://schemas.android.com/apk/res-auto"     android:layout_width="match_parent"     android:layout_height="?attr/actionbarsize"     android:background="@color/colorprimary"     app:titletextappearance="@style/toolbartitle"     app:theme="@style/themeoverlay.appcompat.dark.actionbar"     app:popuptheme="@style/themeoverlay.appcompat.light"     android:elevation="@dimen/toolbar_elevation">      <imageview         android:id="@+id/tool_logo"         android:layout_width="wrap_content"         android:layout_height="fill_parent"         android:adjustviewbounds="true"         android:contentdescription="@string/img_logo"         android:src="@drawable/logo" />  </android.support.v7.widget.toolbar>

and same in drawer header (toolbar or drawer header black ... not both)

drawer_header.xml

<?xml version="1.0" encoding="utf-8"?> <linearlayout xmlns:android="http://schemas.android.com/apk/res/android"     android:orientation="vertical"     android:layout_width="fill_parent"     android:layout_height="match_parent"     android:background="@color/colorprimary">      <imageview         android:id="@+id/navhead"         android:layout_width="match_parent"         android:layout_height="@dimen/drawer_header_height"         android:adjustviewbounds="true"         android:src="@drawable/logo"         android:contentdescription="@string/img_logo" />  </linearlayout>

nothing special in mainoverview.java

protected void oncreate(bundle savedinstancestate) { super.oncreate(savedinstancestate); setcontentview(r.layout.main_list);  mdrawerlist = (listview)findviewbyid(r.id.navlist);  final layoutinflater layoutinflater = (layoutinflater) getsystemservice(context.layout_inflater_service); final view drawerheaderview = layoutinflater.inflate(r.layout.drawer_header, null); mdrawerlist.addheaderview(drawerheaderview);  toolbar = (toolbar) findviewbyid(r.id.tool_bar); setsupportactionbar(toolbar); getsupportactionbar().setdisplayshowtitleenabled(false); getsupportactionbar().setdisplayhomeasupenabled(true); getsupportactionbar().sethomebuttonenabled(true);

i found solution. black shape displays in action bar because 1 big-size logo.png in folder "drawable". logo must in drawable-mdpi/hdpi/etc. in equal sizes (48dp/56dp height, depends on android version). don't know why android 5.0.1 on galaxy s4 doesn't downsize picture correct emulators or real 4.4.2 device. seems ok.


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