小编Joe*_*Joe的帖子

我正在尝试使用新的RecyclerView,每当我尝试运行它时,我的应用程序立即崩溃.它为我提供了尝试访问方法的NullPointerException android.support.v7.widget.RecyclerView.我看过其他帖子,看到大多数人都没有,compile 'com.android.support:recyclerview-v7:+'但我尝试了,但根本没用.目前还不确定该做什么,任何帮助都将不胜感激.这里的错误日志:(我会张贴一张图片,但我还没有10个代表)

java.lang.NullPointerException: Attempt to invoke virtual method 'void android.support.v7.widget.RecyclerView$LayoutManager.onMeasure(android.support.v7.widget.RecyclerView$Recycler, android.support.v7.widget.RecyclerView$State, int, int)' on a null object reference
        at android.support.v7.widget.RecyclerView.onMeasure(RecyclerView.java:1764)
        at android.view.View.measure(View.java:17430)
        at android.widget.RelativeLayout.measureChildHorizontal(RelativeLayout.java:727)
        at android.widget.RelativeLayout.onMeasure(RelativeLayout.java:463)
        at android.view.View.measure(View.java:17430)
        at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5463)
        at android.widget.FrameLayout.onMeasure(FrameLayout.java:430)
        at android.view.View.measure(View.java:17430)
        at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5463)
        at android.widget.FrameLayout.onMeasure(FrameLayout.java:430)
        at android.view.View.measure(View.java:17430)
        at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5463)
        at android.widget.LinearLayout.measureChildBeforeLayout(LinearLayout.java:1436)
        at android.widget.LinearLayout.measureVertical(LinearLayout.java:722)
        at android.widget.LinearLayout.onMeasure(LinearLayout.java:613)
        at android.view.View.measure(View.java:17430)
        at android.support.v4.widget.DrawerLayout.onMeasure(DrawerLayout.java:851)
        at android.view.View.measure(View.java:17430)
        at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5463)
        at android.widget.FrameLayout.onMeasure(FrameLayout.java:430)
        at android.view.View.measure(View.java:17430)
        at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5463)
        at android.widget.LinearLayout.measureChildBeforeLayout(LinearLayout.java:1436)
        at android.widget.LinearLayout.measureVertical(LinearLayout.java:722)
        at android.widget.LinearLayout.onMeasure(LinearLayout.java:613)
        at android.view.View.measure(View.java:17430)
        at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5463)
        at android.widget.FrameLayout.onMeasure(FrameLayout.java:430)
        at android.view.View.measure(View.java:17430) …

我在IntelliJ中创建了一个新的maven项目,并将包装设置为jar,但是当我构建它时,目标文件夹不包含jar.我确信我的东西真的很蠢,但我在不同的网站上阅读的东西太多了,我觉得更好.

我在控制台中收到此警告.我能找到的唯一信息是大多数人在列表视图中启用快速滚动时获得它.我没有使用任何列表视图.它说它被CollapsingToolbarLayout,AppCompatTextView,Toolbar和AppBarLayout不正确地调用.每当我快速"推动"我的嵌套滚动视图上下折叠并展开工具栏时,就会发生这种情况.

日志:

06-30 22:18:42.622 19090-19090/? I/art: Not late-enabling -Xcheck:jni (already on)
06-30 22:18:43.153 19090-19090/joebruckner.lastpick.debug D/MovieShuffleActivity: false, true, false
06-30 22:18:43.205 19090-19126/joebruckner.lastpick.debug D/OpenGLRenderer: Use EGL_SWAP_BEHAVIOR_PRESERVED: true

                                                                            [ 06-30 22:18:43.267 19090:19126 D/         ]
                                                                            HostConnection::get() New Host Connection established 0xea95fdb0, tid 19126
06-30 22:18:43.287 19090-19126/joebruckner.lastpick.debug I/OpenGLRenderer: Initialized EGL, version 1.4
06-30 22:18:43.806 19090-19090/joebruckner.lastpick.debug D/MovieShuffleActivity: false, true, true
06-30 22:28:49.264 19090-19090/joebruckner.lastpick.debug W/View: requestLayout() improperly called by android.support.design.widget.CollapsingToolbarLayout{5041bd9 V.ED..... ......ID 0,0-1080,525 #7f0d0074 app:id/collapsingToolbar} during layout: running second layout pass
06-30 22:28:49.264 19090-19090/joebruckner.lastpick.debug W/View: requestLayout() improperly …

我正在尝试使用NestedScrollView支持库中的新功能.我希望可滚动内容扩展到匹配父级,如果它更小.我看到,要做到这一点,我应该补充fillViewport=true到NestedScrollView.当我这样做时,我的可滚动内容不会垂直拉伸,而是在屏幕外水平延伸.

布局card_movie只有RelativeLayout一些TextViews和一个ImageView内部.没什么特别的.

我安装了最新的Kotlin android扩展插件(版本1.0.0-beta-1103)并将类路径添加到我的Gradle依赖项中.它编译但我仍然无法导入我的android片段内的包.