在Android中使用Highcharts

问题描述

我尝试在Android Java应用程序中使用Highcharts。 我找到了两个可以使用的官方教程,但是它们都无法正常工作并出现错误:

first tutorial.

E/AndroidRuntime: FATAL EXCEPTION: main
    Process: ir.azonik.testtest,PID: 5160
    java.lang.RuntimeException: Unable to instantiate activity ComponentInfo{aa.bb.cc/aa.bb.cc.MainActivity}: java.lang.NullPointerException: Attempt to invoke virtual method 'android.content.pm.ApplicationInfo android.content.Context.getApplicationInfo()' on a null object reference
        at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:3365)
        at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:3601)
                      ... 

Second

E/AndroidRuntime: FATAL EXCEPTION: main
    Process: ir.azonik.testazs,PID: 18746
    java.lang.RuntimeException: Unable to instantiate activity ComponentInfo{aa.bb.cc/aa.bb.cc.MainActivity}: java.lang.ClassNotFoundException: Didn't find class "aa.bb.cc.MainActivity" on path: DexPathList[[zip file "/data/app/aa.bb.cc-2mYWDS_pyscw6wLB3r-FKg==/base.apk"],nativeLibraryDirectories=[/data/app/aa.bb.cc-2mYWDS_pyscw6wLB3r-FKg==/lib/arm,/system/lib,/system/vendor/lib]]
        at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2841)
        at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:3032)
        at android.app.ActivityThread.-wrap11(Unknown Source:0)
       
                ...

解决方法

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