小编Rah*_*hul的帖子

RobolectricTestRunner::class在我的单元测试中抛出IllegalArgumentException没有带有此堆栈跟踪的消息:

我的单元测试类:

@RunWith(RobolectricTestRunner::class)
class UnitTest {
    @Test
    fun testEncodeDecode() {
    }
}

输出堆栈跟踪:

java.lang.IllegalArgumentException
at org.objectweb.asm.AnnotationVisitor.<init>(Unknown Source)
at org.objectweb.asm.AnnotationVisitor.<init>(Unknown Source)
at org.objectweb.asm.tree.AnnotationNode.<init>(AnnotationNode.java:77)
at org.objectweb.asm.tree.AnnotationNode.<init>(AnnotationNode.java:63)
at org.objectweb.asm.tree.ClassNode.visitAnnotation(ClassNode.java:208)
at org.objectweb.asm.ClassReader.accept(Unknown Source)
at org.objectweb.asm.ClassReader.accept(Unknown Source)
at org.robolectric.internal.bytecode.ClassInstrumentor.analyzeClass(ClassInstrumentor.java:63)
at org.robolectric.internal.bytecode.SandboxClassLoader.lambda$maybeInstrumentClass$1(SandboxClassLoader.java:121)
at org.robolectric.util.PerfStatsCollector.measure(PerfStatsCollector.java:50)
at org.robolectric.internal.bytecode.SandboxClassLoader.maybeInstrumentClass(SandboxClassLoader.java:120)
at org.robolectric.internal.bytecode.SandboxClassLoader.lambda$findClass$0(SandboxClassLoader.java:111)
at org.robolectric.util.PerfStatsCollector.measure(PerfStatsCollector.java:50)
at org.robolectric.internal.bytecode.SandboxClassLoader.findClass(SandboxClassLoader.java:110)
at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
at org.robolectric.RobolectricTestRunner.getHooksInterface(RobolectricTestRunner.java:551)
at org.robolectric.RobolectricTestRunner.configureSandbox(RobolectricTestRunner.java:235)
at org.robolectric.internal.SandboxTestRunner$2.evaluate(SandboxTestRunner.java:230)
at org.robolectric.internal.SandboxTestRunner.runChild(SandboxTestRunner.java:130)
at org.robolectric.internal.SandboxTestRunner.runChild(SandboxTestRunner.java:42)
at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)
at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71)
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)
at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58)
at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268)
at org.robolectric.internal.SandboxTestRunner$1.evaluate(SandboxTestRunner.java:84)
at org.junit.runners.ParentRunner.run(ParentRunner.java:363)
at org.junit.runner.JUnitCore.run(JUnitCore.java:137)
at …

我从服务开始活动直到 android P，但从 android10 开始，谷歌保留了一项限制，即活动不能从后台启动。

https://developer.android.com/guide/components/activities/background-starts

// below code stopped working
Intent intent = new Intent(this, MyActivity.class);
intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
startActivity(intent);

我应该为 android10 做什么？

这是我的布局 xml 代码

我已经有了 listview 滚动侦听器的回调，但如果我这样做

  collapsingToolbarLayout.setVisibility(View.GONE);

它的简单隐藏工具栏代替滚动效果，但我想要滚动效果请帮助。

<android.support.design.widget.AppBarLayout
    android:id="@+id/id_toolbar_container"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:fitsSystemWindows="true">

    <android.support.v7.widget.Toolbar
        android:id="@+id/toolbar"
        android:layout_width="match_parent"
        android:layout_height="?attr/actionBarSize"
        android:visibility="gone"
        app:layout_collapseMode="pin"
        app:layout_scrollFlags="scroll|exitUntilCollapsed" />
</android.support.design.widget.AppBarLayout>

<android.support.design.widget.CoordinatorLayout
    android:id="@+id/main_content"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:layout_below="@id/id_toolbar_container">

    <android.support.design.widget.AppBarLayout
        android:id="@+id/id_appbar"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        app:elevation="0dp">

        //This is the toolbar which i want to hide on scroll of listview
        <android.support.design.widget.CollapsingToolbarLayout
            android:id="@+id/collapsingToolBar"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            app:layout_scrollFlags="enterAlwaysCollapsed">

            <RelativeLayout
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:background="@color/white">

                <android.support.design.widget.TabLayout
                    android:id="@+id/tabs"
                    android:layout_width="wrap_content"
                    android:layout_height="?attr/actionBarSize"
                    android:layout_alignParentLeft="true"
                    android:layout_alignParentStart="true"
                    android:layout_marginTop="5dp"
                    app:tabMinWidth="75dp"
                    app:tabIndicatorColor="@color/deep_blue"
                    app:tabSelectedTextColor="@color/background"
                    app:tabTextAppearance="@style/MyTabLayoutTextAppearance"
                    app:tabTextColor="@color/myGrey" />

            </RelativeLayout>
        </android.support.design.widget.CollapsingToolbarLayout>

    </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>