怎么往回滑动到初始位置，不能再滑动了，能否无限回滑呢？无限下滑可以

[Ellen2018]

[xuezj]

里面的原理是利用整形最大值作为适配器的数量大小,你是怎么滑到头的

[itzhaokun]

第一次进去默认就是第一张图片往左滑动就到头了

[xuezj]

只有一张图吗?

[itzhaokun]

4张图，现在可以往左滑动了，有时候在运行中和第一次加载会报错
java.lang.NullPointerException: Attempt to invoke virtual method 'boolean android.support.v7.widget.RecyclerView$LayoutManager.canScrollVertically()' on a null object reference
at com.xuezj.cardbanner.view.CardView.findViewAtCenter(CardView.java:163)
at com.xuezj.cardbanner.view.CardView.onLayout(CardView.java:67)
你能看下这个错误吗

[xuezj]

我正在改这个问题

[itzhaokun]

好的，感谢

[xuezj]

这回应该好了

[itzhaokun]

java.lang.AbstractMethodError: abstract method "void com.bumptech.glide.module.RegistersComponents.registerComponents(android.content.Context, com.bumptech.glide.Glide, com.bumptech.glide.Registry)"
at com.bumptech.glide.Glide.initializeGlide(Glide.java:230)
at com.bumptech.glide.Glide.checkAndInitializeGlide(Glide.java:171)
at com.bumptech.glide.Glide.get(Glide.java:155)
at com.bumptech.glide.Glide.getRetriever(Glide.java:528)
at com.bumptech.glide.Glide.with(Glide.java:554)
at com.xuezj.cardbanner.adapter.CardAdapter.onBindViewHolder(CardAdapter.java:82)
at com.xuezj.cardbanner.adapter.CardAdapter.onBindViewHolder(CardAdapter.java:18)
at android.support.v7.widget.RecyclerView$Adapter.onBindViewHolder(RecyclerView.java:6482)
at android.support.v7.widget.RecyclerView$Adapter.bindViewHolder(RecyclerView.java:6515)
at android.support.v7.widget.RecyclerView$Recycler.tryBindViewHolderByDeadline(RecyclerView.java:5458)
at android.support.v7.widget.RecyclerView$Recycler.tryGetViewHolderForPositionByDeadline(RecyclerView.java:5724)
at android.support.v7.widget.RecyclerView$Recycler.getViewForPosition(RecyclerView.java:5563)
at android.support.v7.widget.RecyclerView$Recycler.getViewForPosition(RecyclerView.java:5559)
glide报错了，看一下

[itzhaokun]

@GlideModule
public class MyAppGlideModule extends AppGlideModule {

@Override
public boolean isManifestParsingEnabled() {
    return false;
}

}
创建这个类。重写这个方法就好了，改一下吧

[xuezj]

你是不是自己也引用Glide了

[itzhaokun]

是的，有什么冲突吗？

[itzhaokun]

嗯，这个问题我在项目中解决了