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一、问题描述
android studio导入一个项目报一堆错误:
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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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