java.lang.NullPointerException: Attempt to invoke virtual method ‘int java.lang.Integer.intValue()’ on a null object reference

FATAL EXCEPTION: mainProcess: com.fjrcloud.fuqing, PID: 9885java.lang.NullPointerException: Attempt to invoke virtual method 'int java.lang.Integer.intValue()' on a null object referenceat com.chad.library.adapter.base.BaseMultiItemQuickAdapter.getLayoutId(BaseMultiItemQuickAdapter.java:52)at com.chad.library.adapter.base.BaseMultiItemQuickAdapter.onCreateDefViewHolder(BaseMultiItemQuickAdapter.java:48)at com.chad.library.adapter.base.BaseQuickAdapter.onCreateViewHolder(BaseQuickAdapter.java:681)at com.chad.library.adapter.base.BaseQuickAdapter.onCreateViewHolder(BaseQuickAdapter.java:68)at android.support.v7.widget.RecyclerView$Adapter.createViewHolder(RecyclerView.java:6367)at android.support.v7.widget.RecyclerView$Recycler.tryGetViewHolderForPositionByDeadline(RecyclerView.java:5555)at android.support.v7.widget.RecyclerView$Recycler.getViewForPosition(RecyclerView.java:5440)at android.support.v7.widget.RecyclerView$Recycler.getViewForPosition(RecyclerView.java:5436)at android.support.v7.widget.LinearLayoutManager$LayoutState.next(LinearLayoutManager.java:2224)at android.support.v7.widget.LinearLayoutManager.layoutChunk(LinearLayoutManager.java:1551)at android.support.v7.widget.LinearLayoutManager.fill(LinearLayoutManager.java:1511)at android.support.v7.widget.LinearLayoutManager.onLayoutChildren(LinearLayoutManager.java:595)at android.support.v7.widget.RecyclerView.dispatchLayoutStep2(RecyclerView.java:3583)at android.support.v7.widget.RecyclerView.onMeasure(RecyclerView.java:3025)at android.view.View.measure(View.java:19759)at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:6122)at android.widget.FrameLayout.onMeasure(FrameLayout.java:185)at android.support.v7.widget.CardView.onMeasure(CardView.java:211)at android.view.View.measure(View.java:19759)at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:6122)at android.widget.LinearLayout.measureChildBeforeLayout(LinearLayout.java:1464)at android.widget.LinearLayout.measureVertical(LinearLayout.java:758)at android.widget.LinearLayout.onMeasure(LinearLayout.java:640)at android.view.View.measure(View.java:19759)at android.widget.RelativeLayout.measureChildHorizontal(RelativeLayout.java:715)at android.widget.RelativeLayout.onMeasure(RelativeLayout.java:461)at android.view.View.measure(View.java:19759)at android.widget.RelativeLayout.measureChildHorizontal(RelativeLayout.java:715)at android.widget.RelativeLayout.onMeasure(RelativeLayout.java:461)at android.view.View.measure(View.java:19759)at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:6122)at android.widget.LinearLayout.measureChildBeforeLayout(LinearLayout.java:1464)at android.widget.LinearLayout.measureVertical(LinearLayout.java:758)at android.widget.LinearLayout.onMeasure(LinearLayout.java:640)at android.view.View.measure(View.java:19759)at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:6122)at android.widget.FrameLayout.onMeasure(FrameLayout.java:185)at android.support.v7.widget.ContentFrameLayout.onMeasure(ContentFrameLayout.java:139)at android.view.View.measure(View.java:19759)at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:6122)at android.widget.LinearLayout.measureChildBeforeLayout(LinearLayout.java:1464)at android.widget.LinearLayout.measureVertical(LinearLayout.java:758)at android.widget.LinearLayout.onMeasure(LinearLayout.java:640)at android.view.View.measure(View.java:19759)at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:6122)at android.widget.FrameLayout.onMeasure(FrameLayout.java:185)at android.view.View.measure(View.java:19759)at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:6122)at android.widget.LinearLayout.measureChildBeforeLayout(LinearLayout.java:1464)at android.widget.LinearLayout.measureVertical(LinearLayout.java:758)at android.widget.LinearLayout.onMeasure(LinearLayout.java:640) 11-15 10:06:28.023 9885-9885/com.fjrcloud.fuqing E/AndroidRuntime: at android.view.View.measure(View.java:19759)at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:6122)at android.widget.FrameLayout.onMeasure(FrameLayout.java:185)at com.android.internal.policy.DecorView.onMeasure(DecorView.java:690)at android.view.View.measure(View.java:19759)at android.view.ViewRootImpl.performMeasure(ViewRootImpl.java:2317)at android.view.ViewRootImpl.measureHierarchy(ViewRootImpl.java:1404)at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:1653)at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:1292)at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:6368)at android.view.Choreographer$CallbackRecord.run(Choreographer.java:873)at android.view.Choreographer.doCallbacks(Choreographer.java:685)at android.view.Choreographer.doFrame(Choreographer.java:621)at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:859)at android.os.Handler.handleCallback(Handler.java:754)at android.os.Handler.dispatchMessage(Handler.java:95)at android.os.Looper.loop(Looper.java:163)at android.app.ActivityThread.main(ActivityThread.java:6321)at java.lang.reflect.Method.invoke(Native Method)at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:880)at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:770)

今天遇到這個報錯，報錯java.lang.Integer.intValue() 找了半天。。。其實這個是獲取某個int值報空。我的問題出在適配器中申明了多布局，只設置了兩種，然而實際定義的布局有三種。要保證適配器中獲取的類型個數跟你所給數據的類型個數相同！！！切記

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