Android 活动开始时黑屏显示5-10秒

我在android上使用富编辑文本库在编辑文本中创建HTML。这是指向该项目的GitHub链接

根据演示，我在活动开始时注册了RTApi和RTManager，但它在开始时增加了几秒钟的延迟，并显示一个黑色的空屏幕。要注册的代码，即

RTApi rtApi = new RTApi(this, new RTProxyImpl(this), new RTMediaFactoryImpl(this, true));
RTManager rtManager = new RTManager(rtApi, savedInstanceState);

这是活动开始时的日志

E/AssetIndex: assets.index
E/AssetIndex: java.io.FileNotFoundException: assets.index
E/AssetIndex:     at android.content.res.AssetManager.openAsset(Native Method)
E/AssetIndex:    at android.content.res.AssetManager.open(AssetManager.java:334)
E/AssetIndex:    at android.content.res.AssetManager.open(AssetManager.java:308)
E/AssetIndex: at com.onegravity.rteditor.fonts.AssetIndex.getAssetIndex(AssetIndex.java:46)
E/AssetIndex: at com.onegravity.rteditor.fonts.FontManager.getAssetFonts(FontManager.java:156)
E/AssetIndex:     at com.onegravity.rteditor.fonts.FontManager.getFonts(FontManager.java:97)
E/AssetIndex:     at com.onegravity.rteditor.toolbar.HorizontalRTToolbar.getFontItems(HorizontalRTToolbar.java:213)
E/AssetIndex:     at com.onegravity.rteditor.toolbar.HorizontalRTToolbar.onFinishInflate(HorizontalRTToolbar.java:177)
E/AssetIndex:     at android.view.LayoutInflater.rInflate(LayoutInflater.java:814)
E/AssetIndex:     at android.view.LayoutInflater.rInflate(LayoutInflater.java:809)
E/AssetIndex:     at android.view.LayoutInflater.parseInclude(LayoutInflater.java:916)
E/AssetIndex:     at android.view.LayoutInflater.rInflate(LayoutInflater.java:802)
 E/AssetIndex:     at android.view.LayoutInflater.inflate(LayoutInflater.java:504)
E/AssetIndex:     at android.view.LayoutInflater.inflate(LayoutInflater.java:414)
E/AssetIndex:     at android.view.LayoutInflater.inflate(LayoutInflater.java:365)
E/AssetIndex:     at android.support.v7.app.AppCompatDelegateImplV7.setContentView(AppCompatDelegateImplV7.java:257)
E/AssetIndex:     at android.support.v7.app.AppCompatActivity.setContentView(AppCompatActivity.java:109)
E/AssetIndex:     at com.workmatec.apps.androidapp.UIElements.AppFormActivity.onCreate(AppFormActivity.java:91)
E/AssetIndex:     at android.app.Activity.performCreate(Activity.java:6020)
E/AssetIndex:     at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1105)
E/AssetIndex:     at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2259)
E/AssetIndex:     at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2368)
E/AssetIndex:     at android.app.ActivityThread.access$800(ActivityThread.java:149)
E/AssetIndex:     at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1284)
E/AssetIndex:     at android.os.Handler.dispatchMessage(Handler.java:102)
E/AssetIndex:     at android.os.Looper.loop(Looper.java:135)
E/AssetIndex:     at android.app.ActivityThread.main(ActivityThread.java:5299)
E/AssetIndex:     at java.lang.reflect.Method.invoke(Native Method)
E/AssetIndex:     at java.lang.reflect.Method.invoke(Method.java:372)
E/AssetIndex:     at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:908)
E/AssetIndex:     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:703)
E/Minikin: addFont failed to create font /system/fonts/jb

这是我的布局文件

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
tools:context="com.workmatec.apps.androidapp.UIElements.AppFormActivity">

<include
    android:id="@+id/rte_toolbar_container"
    layout="@layout/rte_toolbar" />

<ScrollView
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:layout_above="@id/rte_toolbar_container">

    <LinearLayout
        android:id="@+id/appForm"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:background="@color/app_background"
        android:orientation="vertical"
        android:paddingBottom="@dimen/activity_vertical_margin"
        android:paddingLeft="@dimen/activity_horizontal_margin"
        android:paddingRight="@dimen/activity_horizontal_margin"
        android:paddingTop="@dimen/activity_vertical_margin">

    </LinearLayout>
</ScrollView>

RTE_toolbar.XML的XML

    <?xml version="1.0" encoding="utf-8"?>
<HorizontalScrollView
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:layout_alignParentBottom="true"
    android:background="?attr/actionBarItemBackground"
    android:scrollbarStyle="outsideOverlay" >

    <com.onegravity.rteditor.toolbar.HorizontalRTToolbar
        android:id="@+id/rte_toolbar"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:background="?attr/actionBarItemBackground"
        android:orientation="horizontal" >

        <com.onegravity.rteditor.toolbar.RTToolbarImageButton
            android:id="@+id/toolbar_bold"
            style="@style/RTE_ToolbarButton"
            android:background="?attr/rte_icToolbarBold" />

        <com.onegravity.rteditor.toolbar.RTToolbarImageButton
            android:id="@+id/toolbar_italic"
            style="@style/RTE_ToolbarButton"
            android:background="?attr/rte_icToolbarItalic" />

        <com.onegravity.rteditor.toolbar.RTToolbarImageButton
            android:id="@+id/toolbar_underline"
            style="@style/RTE_ToolbarButton"
            android:background="?attr/rte_icToolbarUnderline" />

        <com.onegravity.rteditor.toolbar.RTToolbarImageButton
            android:id="@+id/toolbar_strikethrough"
            style="@style/RTE_ToolbarButton"
            android:background="?attr/rte_icToolbarStrikethrough" />

        <com.onegravity.rteditor.toolbar.RTToolbarImageButton
            android:id="@+id/toolbar_superscript"
            style="@style/RTE_ToolbarButton"
            android:background="?attr/rte_icToolbarSuperscript" />

        <com.onegravity.rteditor.toolbar.RTToolbarImageButton
            android:id="@+id/toolbar_subscript"
            style="@style/RTE_ToolbarButton"
            android:background="?attr/rte_icToolbarSubscript" />

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

        <Spinner
            android:id="@+id/toolbar_font"
            style="?attr/rte_ToolbarSpinner"
            android:background="?attr/rte_icToolbarFont" />

        <Spinner
            android:id="@+id/toolbar_fontsize"
            style="?attr/rte_ToolbarSpinner"
            android:background="?attr/rte_icToolbarFontSize" />

        <Spinner
            android:id="@+id/toolbar_fontcolor"
            style="?attr/rte_ToolbarSpinner"
            android:background="?attr/rte_icToolbarFontColor" />

        <Spinner
            android:id="@+id/toolbar_bgcolor"
            style="?attr/rte_ToolbarSpinner"
            android:background="?attr/rte_icToolbarBGColor" />

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

        <com.onegravity.rteditor.toolbar.RTToolbarImageButton
            android:id="@+id/toolbar_number"
            style="@style/RTE_ToolbarButton"
            android:background="?attr/rte_icToolbarNumber" />

        <com.onegravity.rteditor.toolbar.RTToolbarImageButton
            android:id="@+id/toolbar_bullet"
            style="@style/RTE_ToolbarButton"
            android:background="?attr/rte_icToolbarBullet" />

        <com.onegravity.rteditor.toolbar.RTToolbarImageButton
            android:id="@+id/toolbar_inc_indent"
            style="@style/RTE_ToolbarButton"
            android:background="?attr/rte_icToolbarIncIndent" />

        <com.onegravity.rteditor.toolbar.RTToolbarImageButton
            android:id="@+id/toolbar_dec_indent"
            style="@style/RTE_ToolbarButton"
            android:background="?attr/rte_icToolbarDecIntent" />

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

        <com.onegravity.rteditor.toolbar.RTToolbarImageButton
            android:id="@+id/toolbar_align_left"
            style="@style/RTE_ToolbarButton"
            android:background="?attr/rte_icToolbarAlignLeft" />

        <com.onegravity.rteditor.toolbar.RTToolbarImageButton
            android:id="@+id/toolbar_align_center"
            style="@style/RTE_ToolbarButton"
            android:background="?attr/rte_icToolbarAlignCenter" />

        <com.onegravity.rteditor.toolbar.RTToolbarImageButton
            android:id="@+id/toolbar_align_right"
            style="@style/RTE_ToolbarButton"
            android:background="?attr/rte_icToolbarAlignRight" />

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

        <com.onegravity.rteditor.toolbar.RTToolbarImageButton
            android:id="@+id/toolbar_link"
            style="@style/RTE_ToolbarButton"
            android:background="?attr/rte_icToolbarLink" />

        <com.onegravity.rteditor.toolbar.RTToolbarImageButton
            android:id="@+id/toolbar_image"
            style="@style/RTE_ToolbarButton"
            android:background="?attr/rte_icToolbarImage" />

        <com.onegravity.rteditor.toolbar.RTToolbarImageButton
            android:id="@+id/toolbar_image_capture"
            style="@style/RTE_ToolbarButton"
            android:background="?attr/rte_icToolbarCapture" />

        <!-- com.onegravity.rteditor.toolbar.RTToolbarImageButton
            android:id="@+id/toolbar_audio"
            style="@style/ToolbarButton"
            android:background="?attr/rte_icToolbarAudio" /-->

        <!-- com.onegravity.rteditor.toolbar.RTToolbarImageButton
            android:id="@+id/toolbar_video"
            style="@style/ToolbarButton"
            android:layout_marginRight="4dip"
            android:background="?attr/rte_icToolbarVideo" /-->

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

        <com.onegravity.rteditor.toolbar.RTToolbarImageButton
            android:id="@+id/toolbar_undo"
            style="@style/RTE_ToolbarButton"
            android:background="?attr/rte_icToolbarUndo"/>

        <com.onegravity.rteditor.toolbar.RTToolbarImageButton
            android:id="@+id/toolbar_redo"
            style="@style/RTE_ToolbarButton"
            android:background="?attr/rte_icToolbarRedo"/>

        <com.onegravity.rteditor.toolbar.RTToolbarImageButton
            android:id="@+id/toolbar_clear"
            style="@style/RTE_ToolbarButton"
            android:layout_marginRight="4dip"
            android:background="?attr/rte_icToolbarClear"/>

    </com.onegravity.rteditor.toolbar.HorizontalRTToolbar>

</HorizontalScrollView>

RTE工具栏按钮样式

<style name="RTE_ToolbarButton" parent="@android:style/Widget.ImageButton">
    <item name="android:layout_width">wrap_content</item>
    <item name="android:layout_height">wrap_content</item>
    <item name="android:layout_gravity">center</item>
    <item name="android:layout_marginTop">4dip</item>
    <item name="android:layout_marginBottom">4dip</item>
    <item name="android:layout_marginLeft">4dip</item>
    <item name="android:gravity">center</item>
    <item name="android:adjustViewBounds">true</item>
</style>

包装内容
包装内容
居中
4dip
4dip
4dip
居中
真的

我也有同样的问题。我刚刚将assets.index文件添加到项目的assets文件夹中。该文件包括以下内容：

${assets}

要求您将此代码块添加到项目的build.gardle文件中，以便在编译过程中创建assest.index文件：

task indexAssets {
    description 'Index Build Variant assets for faster lookup by AssetManager'

    ext.assetsSrcDir = file( "${projectDir}/src/main/assets" )

    inputs.dir assetsSrcDir

    doLast {
        android.applicationVariants.each { target ->
            // create index
            def contents = ""
            def tree = fileTree(dir: "${ext.assetsSrcDir}", include: ['**/*.ttf'], exclude: ['**/.svn/**', '*.index'])
            // use this instead if you have assets folders in each flavor:
            // def tree = fileTree(dir: "${ext.variantPath}", exclude: ['**/.svn/**', '*.index'])
            tree.visit { fileDetails ->
                contents += "${fileDetails.relativePath}" + "\n"
            }

            // create index file
            def assetIndexFile = new File("${ext.assetsSrcDir}/assets.index")
            assetIndexFile.write contents
        }
    }
}

indexAssets.dependsOn {
    tasks.matching { task -> task.name.startsWith( 'merge' ) && task.name.endsWith( 'Assets' ) }
}

tasks.withType( JavaCompile ) {
    compileTask -> compileTask.dependsOn indexAssets
}

indexAssets

如果没有资产文件夹，请在Android Studio中按如下方式创建：

Select your project, then FILE --> NEW--> FOLDER --> ASSET

---

我发现，如果资源中有，编辑器可以比没有更快地启动

assets.index对您意味着什么？我不知道，这就是为什么我粘贴logcat的原因。然后请发布您的AppFormActivity的xml布局，即在setContentView callI中，我通过编辑添加了布局文件。请检查，请将rte_toolbar.xml贴到我已经检查过了，它工作得很好！谢谢，伙计。现在黑屏问题已经解决了，但是启动活动需要一些时间，在logcat中会显示这一点。“E/Minikin:addFont无法创建font/system/fonts/jb”我在项目目录中有资产文件夹，也有索引文件，但仍然面临问题。当我单击按钮启动包含RT编辑器的“活动”时，它会挂起一段时间，然后启动“活动”，并将错误消息logcat显示为“E/Minikin:addFont未能创建字体/system/fonts/jb”