小编Igo*_*kov的帖子

我正在使用最新的firebase(9.0.2): build.gradle:

dependencies {
     ...
     compile "com.google.firebase:firebase-database:9.0.2"
     compile 'com.google.firebase:firebase-auth:9.0.2'
}
apply plugin: 'com.google.gms.google-services'

项目 build.gradle

classpath 'com.google.gms:google-services:3.0.0'

一段时间后应用程序开始崩溃与此异常:

  Fatal Exception: java.lang.RuntimeException: Uncaught exception in Firebase runloop (3.0.0). Please report to support@firebase.com
       at com.google.android.gms.internal.zzadp$1$1.run(Unknown Source)
       at android.os.Handler.handleCallback(Handler.java:739)
       at android.os.Handler.dispatchMessage(Handler.java:95)
       at android.os.Looper.loop(Looper.java:135)
       at android.app.ActivityThread.main(ActivityThread.java:5274)
       at java.lang.reflect.Method.invoke(Method.java)
       at java.lang.reflect.Method.invoke(Method.java:372)
       at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:909)
       at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:704)
Caused by java.lang.AssertionError: hardAssert failed: 
       at com.google.android.gms.internal.zzaiv.zzb(Unknown Source)
       at com.google.android.gms.internal.zzaiv.zzaN(Unknown Source)
       at com.google.android.gms.internal.zzagh.zzb(Unknown Source)
       at com.google.android.gms.internal.zzagh.<init>(Unknown Source)
       at com.google.android.gms.internal.zzaga.<init>(Unknown Source)
       at com.google.android.gms.internal.zzaga.<init>(Unknown Source)
       at com.google.android.gms.internal.zzadp.zza(Unknown Source)
       at com.google.android.gms.internal.zzaeu.zzic(Unknown Source)
       at …

我想在xml中绘制一条垂直虚线,使用shape.

我用这个例子:

<shape xmlns:android="http://schemas.android.com/apk/res/android"
   android:shape="line">

<size
android:height="400dp"
android:width="4dp"/>

<stroke
        android:color="#000000"
        android:dashWidth="100dp"
        android:dashGap="10dp" />
</shape>

然后:

<View android:id="@+id/vertical_line"
      android:layout_width="wrap_content"
      android:layout_height="wrap_content"
      android:background="@drawable/dotted_line"
      android:layout_marginLeft="27dp"/>

但它不起作用.我该怎么做？