Android studio报: java.lang.ExceptionInInitializerError 错误
程序员文章站
2023-12-15 13:52:34
一、问题描述
android studio导入一个项目报一堆错误:
process: xhs.com.xhswelcomeanim, pid: 1416...
一、问题描述
android studio导入一个项目报一堆错误:
process: xhs.com.xhswelcomeanim, pid: 1416 java.lang.exceptionininitializererror at com.werb.gankwithzhihu.ui.fragment.zhihufragment.createpresenter(zhihufragment.java:33) at com.werb.gankwithzhihu.ui.fragment.zhihufragment.createpresenter(zhihufragment.java:25) at com.werb.gankwithzhihu.ui.base.mvpbasefragment.oncreate(mvpbasefragment.java:35) at android.support.v4.app.fragment.performcreate(fragment.java:2068) at android.support.v4.app.fragmentmanagerimpl.movetostate(fragmentmanager.java:1055) at android.support.v4.app.backstackrecord.setlastin(backstackrecord.java:838) at android.support.v4.app.backstackrecord.calculatefragments(backstackrecord.java:861) at android.support.v4.app.backstackrecord.run(backstackrecord.java:719) at android.support.v4.app.fragmentmanagerimpl.execsingleaction(fragmentmanager.java:1638) at android.support.v4.app.backstackrecord.commitnowallowingstateloss(backstackrecord.java:679) at android.support.v4.app.fragmentpageradapter.finishupdate(fragmentpageradapter.java:143) at android.support.v4.view.viewpager.populate(viewpager.java:1240) at android.support.v4.view.viewpager.populate(viewpager.java:1088) at android.support.v4.view.viewpager.onmeasure(viewpager.java:1614) at android.view.view.measure(view.java:18026) at android.view.viewgroup.measurechildwithmargins(viewgroup.java:5702) at android.widget.linearlayout.measurechildbeforelayout(linearlayout.java:1692) at android.widget.linearlayout.measurevertical(linearlayout.java:760) at android.widget.linearlayout.onmeasure(linearlayout.java:629) at android.view.view.measure(view.java:18026) at android.view.viewgroup.measurechildwithmargins(viewgroup.java:5702) at android.support.design.widget.coordinatorlayout.onmeasurechild(coordinatorlayout.java:700) at android.support.design.widget.headerscrollingviewbehavior.onmeasurechild(headerscrollingviewbehavior.java:90) at android.support.design.widget.appbarlayout$scrollingviewbehavior.onmeasurechild(appbarlayout.java:1364) at android.support.design.widget.coordinatorlayout.onmeasure(coordinatorlayout.java:765) at android.view.view.measure(view.java:18026) at android.view.viewgroup.measurechildwithmargins(viewgroup.java:5702) at android.widget.linearlayout.measurechildbeforelayout(linearlayout.java:1692) at android.widget.linearlayout.measurehorizontal(linearlayout.java:1244) at android.widget.linearlayout.onmeasure(linearlayout.java:631) at android.view.view.measure(view.java:18026) at android.view.viewgroup.measurechildwithmargins(viewgroup.java:5702) at android.widget.framelayout.onmeasure(framelayout.java:465) at android.support.v7.widget.contentframelayout.onmeasure(contentframelayout.java:135) at android.view.view.measure(view.java:18026) at android.view.viewgroup.measurechildwithmargins(viewgroup.java:5702) at android.widget.linearlayout.measurechildbeforelayout(linearlayout.java:1692) at android.widget.linearlayout.measurevertical(linearlayout.java:760) at android.widget.linearlayout.onmeasure(linearlayout.java:629) at android.view.view.measure(view.java:18026) at android.view.viewgroup.measurechildwithmargins(viewgroup.java:5702) at android.widget.framelayout.onmeasure(framelayout.java:465) at android.view.view.measure(view.java:18026) at android.view.viewgroup.measurechildwithmargins(viewgroup.java:5702) at android.widget.linearlayout.measurechildbeforelayout(linearlayout.java:1692) at android.widget.linearlayout.measurevertical(linearlayout.java:760) at android.widget.linearlayout.onmeasure(linearlayout.java:629) at android.view.view.measure(view.java:18026) at android.view.viewgroup.measurechildwithmargins(viewgroup.java:5702) at android.widget.framelayout.onmeasure(framelayout.java:465) at com.android.internal.policy.impl.phonewindow$decorview.onmeasure(phonewindow.java:2785) at android.view.view.measure(view.java:18026) at android.view.viewrootimpl.performmeasure(viewrootimpl.java:2456) at android.view.viewrootimpl.measurehierarchy(viewrootimpl.java:1440) at android.view.view
报 java.lang.exceptionininitializererror错误,网上的解析是:
当在静态初始化块中出现了异常的时候,jvm会抛出 java.lang.exceptionininitializererror异常。如果你了解java中的静态变量,你会知道它们是在类加载的时候进行初始化的。如果在这个静态变量初始化的过程中出现了异常,那么就会抛出 java.lang.exceptionininitializererror异常。任何异常都可能会引发这种情况,比如说,java.lang.arrayindexoutofbound或者java.lang.nullpointerexception。java开发人员通常会被这个错误弄晕,他觉得自己并没有定义任何的静态初始化块,为什么还会抛出exceptionininitializererror异常;事实上,java默认会将静态变量的初始化放在一个默认的静态初始化块中,然后按它们在源文件中声明的顺序来进行初始化。
二、解决方法
找了半天没发现有什么错误啊,最后在androidmanifest.xml清单文件中,发现了问题所在:
他在这引用了maapp这个类:
而maapp继承的是全局的application这个类,所以在初始化时如果没有引用进来的话,就会报错,而我的那个清单文件中并没有引用进来所以报错了.把他加进来就好了:
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