DES 当我设置 TYPE_RECEIVE_IMAGE 数据集的类型，然后说出这个错误，这是一个运行时错误，我找不到问题，帮帮我！
当我设置 TYPE_RECEIVE_IMAGE 数据集的类型，然后说出这个错误，这是一个运行时错误，我找不到问题，帮帮我吧！ 错误消息
java.lang.NullPointerException at android.support.v7.widget.RecyclerView $ Adapter.createViewHolder（RecyclerView.java:5780） 在 android.support.v7.widget.RecyclerView $ Recycler.getViewForPosition（RecyclerView.java:5003） 在 android.support.v7.widget.RecyclerView $ Recycler.getViewForPosition（RecyclerView.java:4913） 在 android.support.v7.widget.LinearLayoutManager $ LayoutState.next（LinearLayoutManager.java:2029） 在 android.support.v7.widget.LinearLayoutManager.layoutChunk（LinearLayoutManager.java:1414） 在 android.support.v7.widget.LinearLayoutManager.fill（LinearLayoutManager.java:1377） 在 android.support.v7.widget.LinearLayoutManager.onLayoutChildren（LinearLayoutManager.java:578） 在 android.support.v7.widget.RecyclerView.dispatchLayoutStep2（RecyclerView.java:3260） 在 android.support.v7.widget.RecyclerView.dispatchLayout（RecyclerView.java:3069） 在 android.support.v7.widget.RecyclerView.consumePendingUpdateOperations（RecyclerView.java:1505） 在 android.support.v7.widget.RecyclerView.access $ 400（RecyclerView.java:151） 在android.support.v7.widget.RecyclerView $ 1.run（RecyclerView.java:305） 在 android.view.Choreographer $ CallbackRecord.run（Choreographer.java:761） 在android.view.Choreographer.doCallbacks（Choreographer.java:574） 在android.view.Choreographer.doFrame（Choreographer.java:543） 在 android.view.Choreographer $ FrameDisplayEventReceiver.run（Choreographer.java:747） 在android.os.Handler.handleCallback（Handler.java:733） 在android.os.Handler.dispatchMessage（Handler.java:95） 在android.os.Looper.loop（Looper.java:136） 在android.app.ActivityThread.main（ActivityThread.java:5052） at java.lang.reflect.Method.invokeNative（Native Method） 在java.lang.reflect.Method.invoke（Method.java:515） 在 com.android.internal.os.ZygoteInit $ MethodAndArgsCaller.run（ZygoteInit.java:796） 在com.android.internal.os.ZygoteInit.main（ZygoteInit.java:612） 在dalvik.system.NativeStart.main（本地方法）
以下是我的代码： 的适配器
public class ChatRecordAdapter extends RecyclerView.Adapter<RecyclerView.ViewHolder> {
private static final int RECEIVE_MSG = 1;
private static final int SEND_MSG = 2;
public static final int TYPE_SEND_TXT = 3;
public static final int TYPE_RECEIVE_TXT = 4;
public static final int TYPE_SEND_VOICE = 5;
public static final int TYPE_RECEIVE_VOICE = 6;
public static final int TYPE_SEND_FILE = 7;
public static final int TYPE_RECEIVE_FILE = 8;
public static final int TYPE_SEND_IMAGE = 9;
public static final int TYPE_RECEIVE_IMAGE = 10;
public static final int TYPE_SEND_LOCATION = 11;
public static final int TYPE_RECEIVE_LOCATION = 12;
public static final int TYPE_SEND_VIDEO = 13;
public static final int TYPE_RECEIVE_VIDEO = 14;
public static final int TYPE_SEND_CMD = 15;
public static final int TYPE_RECEIVE_CMD = 16;
private List<ChatModel> messages;
private ChatViewClickListener chatViewClickListener;
private ChatViewLongClickListener chatViewLongClickListener;
private ChatViewHeaderClickListener chatViewHeaderClickListener;
public void setChatViewHeaderClickListener(ChatViewHeaderClickListener chatViewHeaderClickListener) {
this.chatViewHeaderClickListener = chatViewHeaderClickListener;
}
public void setViewLongClickListener(ChatViewLongClickListener chatViewLongClickListener) {
this.chatViewLongClickListener = chatViewLongClickListener;
}
public void setViewClickListener(ChatViewClickListener chatViewClickListener) {
this.chatViewClickListener = chatViewClickListener;
}
public ChatRecordAdapter(List<ChatModel> messages) {
this.messages = messages;
}
@Override
public int getItemViewType(int position) {
if (messages != null) {
ChatModel chatModel = messages.get(position);
if (chatModel != null) {
Im.MSG_CONTENT_TYPE msgType = chatModel.getMsgType();
boolean receiveMsg = chatModel.isReceiveMsg();
if (Im.MSG_CONTENT_TYPE.TYPE_TXT == msgType) {
if (receiveMsg) {
return TYPE_RECEIVE_TXT;
} else {
return TYPE_SEND_TXT;
}
} else if (Im.MSG_CONTENT_TYPE.TYPE_VOICE == msgType) {
if (receiveMsg) {
return TYPE_RECEIVE_VOICE;
} else {
return TYPE_SEND_VOICE;
}
} else if (Im.MSG_CONTENT_TYPE.TYPE_FILE == msgType) {
if (receiveMsg) {
return TYPE_RECEIVE_FILE;
} else {
return TYPE_SEND_FILE;
}
} else if (Im.MSG_CONTENT_TYPE.TYPE_IMAGE == msgType) {
if (receiveMsg) {
return TYPE_RECEIVE_IMAGE;
} else {
return TYPE_SEND_IMAGE;
}
} else if (TYPE_LOCATION == msgType) {
if (receiveMsg) {
return TYPE_RECEIVE_LOCATION;
} else {
return TYPE_SEND_LOCATION;
}
} else if (Im.MSG_CONTENT_TYPE.TYPE_VIDEO == msgType) {
if (receiveMsg) {
return TYPE_RECEIVE_VIDEO;
} else {
return TYPE_SEND_VIDEO;
}
} else if (Im.MSG_CONTENT_TYPE.TYPE_CMD == msgType) {
if (receiveMsg) {
return TYPE_RECEIVE_CMD;
} else {
return TYPE_SEND_CMD;
}
}
}
}
return super.getItemViewType(position);
}
@Override
public RecyclerView.ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
LogManager.d("REEEEEE", "onCreateViewHolder");
if (viewType == TYPE_SEND_TXT) {
ChatItemTextSendBinding binding = DataBindingUtil.inflate(LayoutInflater.from(parent.getContext()), R.layout.chat_item_text_send, parent, false);
ChatTextSendHolder holder = new ChatTextSendHolder(binding.getRoot());
holder.setBinding(binding);
binding.sendLl.setVisibility(View.GONE);
return holder;
} else if (viewType == TYPE_RECEIVE_TXT) {
ChatItemTextReceiveBinding binding = DataBindingUtil.inflate(LayoutInflater.from(parent.getContext()), R.layout.chat_item_text_receive, parent, false);
ChatTextReceiveHolder holder = new ChatTextReceiveHolder(binding.getRoot());
holder.setBinding(binding);
binding.receiveLl.setVisibility(View.GONE);
return holder;
} else if (viewType == TYPE_SEND_VOICE) {
ChatItemVoiceSendBinding binding = DataBindingUtil.inflate(LayoutInflater.from(parent.getContext()), R.layout.chat_item_voice_send, parent, false);
ChatVoiceSendHolder holder = new ChatVoiceSendHolder(binding.getRoot());
holder.setBinding(binding);
binding.sendLl.setVisibility(View.GONE);
return holder;
} else if (viewType == TYPE_RECEIVE_VOICE) {
ChatItemVoiceReceiveBinding binding = DataBindingUtil.inflate(LayoutInflater.from(parent.getContext()), R.layout.chat_item_voice_receive, parent, false);
ChatVoiceReceiveHolder holder = new ChatVoiceReceiveHolder(binding.getRoot());
holder.setBinding(binding);
binding.receiveLl.setVisibility(View.GONE);
return holder;
} else if (viewType == TYPE_RECEIVE_IMAGE) {
ChatItemImageReceiveBinding binding = DataBindingUtil.inflate(LayoutInflater.from(parent.getContext()), R.layout.chat_item_image_receive, parent, false);
ChatItemImageReceiveHolder holder = new ChatItemImageReceiveHolder(binding.getRoot());
holder.setBinding(binding);
binding.receiveLl.setVisibility(View.GONE);
} else if (viewType == TYPE_SEND_IMAGE) {
ChatItemImageSendBinding binding = DataBindingUtil.inflate(LayoutInflater.from(parent.getContext()), R.layout.chat_item_image_send, parent, false);
ChatItemImageSendHolder holder = new ChatItemImageSendHolder(binding.getRoot());
holder.setBinding(binding);
binding.sendLl.setVisibility(View.GONE);
} else if (viewType == TYPE_RECEIVE_FILE) {
ChatItemFileReceiveBinding binding = DataBindingUtil.inflate(LayoutInflater.from(parent.getContext()), R.layout.chat_item_file_receive, parent, false);
ChatItemFileReceiveHolder holder = new ChatItemFileReceiveHolder(binding.getRoot());
holder.setBinding(binding);
binding.receiveLl.setVisibility(View.GONE);
} else if (viewType == TYPE_SEND_FILE) {
ChatItemFileSendBinding binding = DataBindingUtil.inflate(LayoutInflater.from(parent.getContext()), R.layout.chat_item_file_send, parent, false);
ChatItemFileSendHolder holder = new ChatItemFileSendHolder(binding.getRoot());
holder.setBinding(binding);
binding.sendLl.setVisibility(View.GONE);
} else if (viewType == TYPE_RECEIVE_LOCATION) {
} else if (viewType == TYPE_SEND_LOCATION) {
} else if (viewType == TYPE_RECEIVE_VIDEO) {
} else if (viewType == TYPE_SEND_VIDEO) {
} else if (viewType == TYPE_RECEIVE_CMD) {
} else if (viewType == TYPE_SEND_CMD) {
}
return null;
}
@Override
public void onBindViewHolder(RecyclerView.ViewHolder holder, int position) {
LogManager.d("REEEEEE","onBindViewHolder");
ChatModel chatModel = messages.get(position);
String userName = chatModel.getUserName();
if (chatModel != null) {
if (holder instanceof ChatTextSendHolder || holder instanceof ChatTextReceiveHolder) {
ChatTextModel chatTextModel = (ChatTextModel) chatModel;
if (holder instanceof ChatTextSendHolder) {
ChatItemTextSendBinding binding = ((ChatTextSendHolder) holder).getBinding();
binding.setViewModel(chatTextModel);
bind(position,TYPE_SEND_TXT, chatModel, binding.content);
bindHeaderClick(binding.header,userName);
} else if (holder instanceof ChatTextReceiveHolder) {
ChatItemTextReceiveBinding binding = ((ChatTextReceiveHolder) holder).getBinding();
binding.setViewModel(chatTextModel);
bind(position,TYPE_RECEIVE_TXT, chatModel, binding.content);
bindHeaderClick(binding.header,userName);
}
} else if (holder instanceof ChatVoiceReceiveHolder || holder instanceof ChatVoiceSendHolder) {
ChatVoiceModel chatTextModel = (ChatVoiceModel) chatModel;
if (holder instanceof ChatVoiceReceiveHolder) {
ChatItemVoiceReceiveBinding binding = ((ChatVoiceReceiveHolder) holder).getBinding();
binding.setViewModel(chatTextModel);
bind(position,TYPE_RECEIVE_VOICE, chatModel, binding.content);
bindHeaderClick(binding.header,userName);
} else if (holder instanceof ChatVoiceSendHolder) {
ChatItemVoiceSendBinding binding = ((ChatVoiceSendHolder) holder).getBinding();
binding.setViewModel(chatTextModel);
bind(position,TYPE_SEND_VOICE, chatModel, binding.content);
bindHeaderClick(binding.header,userName);
}
}else if (holder instanceof ChatItemImageReceiveHolder || holder instanceof ChatItemImageSendHolder){
ChatPicModel chatPicModel = (ChatPicModel) chatModel;
if (holder instanceof ChatItemImageReceiveHolder) {
ChatItemImageReceiveBinding binding = ((ChatItemImageReceiveHolder) holder).getBinding();
binding.setViewModel(chatPicModel);
bind(position,TYPE_RECEIVE_IMAGE, chatPicModel, binding.content);
bindHeaderClick(binding.header,userName);
} else if (holder instanceof ChatItemImageSendHolder) {
ChatItemImageSendBinding binding = ((ChatItemImageSendHolder) holder).getBinding();
binding.setViewModel(chatPicModel);
bind(position,TYPE_SEND_IMAGE, chatPicModel, binding.content);
bindHeaderClick(binding.header,userName);
}
}else if (holder instanceof ChatItemFileReceiveHolder || holder instanceof ChatItemFileSendHolder){
ChatFileModel chatFileModel = (ChatFileModel) chatModel;
if (holder instanceof ChatItemFileReceiveHolder) {
ChatItemFileReceiveBinding binding = ((ChatItemFileReceiveHolder) holder).getBinding();
binding.setViewModel(chatFileModel);
bind(position,TYPE_RECEIVE_FILE, chatFileModel, binding.content);
bindHeaderClick(binding.header,userName);
} else if (holder instanceof ChatItemFileSendHolder) {
ChatItemFileSendBinding binding = ((ChatItemFileSendHolder) holder).getBinding();
binding.setViewModel(chatFileModel);
bind(position,TYPE_SEND_FILE, chatFileModel, binding.content);
bindHeaderClick(binding.header,userName);
}
}
} else {
}
}
private void bind(final int position, final int type, final ChatModel chatModel, View view) {
view.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
if (chatViewClickListener != null) {
chatViewClickListener.onViewClick(view,type,chatModel);
}
}
});
binChatItemLongClick(position,type,chatModel,view);
}
private void binChatItemLongClick(final int position,final int type, final ChatModel chatModel, final View view){
view.setOnLongClickListener(new View.OnLongClickListener() {
@Override
public boolean onLongClick(View v) {
if (chatViewLongClickListener !=null){
chatViewLongClickListener.onViewLongClick(position,type,view,chatModel);
return true;
}
return false;
}
});
}
private void bindHeaderClick(ImageView view , final String username){
view.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
if (chatViewHeaderClickListener!=null){
chatViewHeaderClickListener.onHeaderImageClick(username);
}
}
});
}
@Override
public int getItemCount() {
return messages == null ? 0 : messages.size();
}
public List<ChatModel> getMessages() {
return messages;
}
public class ChatTextReceiveHolder extends RecyclerView.ViewHolder {
private ChatItemTextReceiveBinding binding;
public ChatTextReceiveHolder(View itemView) {
super(itemView);
}
public ChatItemTextReceiveBinding getBinding() {
return binding;
}
public void setBinding(ChatItemTextReceiveBinding binding) {
this.binding = binding;
}
}
public class ChatTextSendHolder extends RecyclerView.ViewHolder {
private ChatItemTextSendBinding binding;
public ChatTextSendHolder(View itemView) {
super(itemView);
}
public ChatItemTextSendBinding getBinding() {
return binding;
}
public void setBinding(ChatItemTextSendBinding binding) {
this.binding = binding;
}
}
public class ChatVoiceSendHolder extends RecyclerView.ViewHolder {
private ChatItemVoiceSendBinding binding;
public ChatVoiceSendHolder(View itemView) {
super(itemView);
}
public ChatItemVoiceSendBinding getBinding() {
return binding;
}
public void setBinding(ChatItemVoiceSendBinding binding) {
this.binding = binding;
}
}
public class ChatVoiceReceiveHolder extends RecyclerView.ViewHolder {
private ChatItemVoiceReceiveBinding binding;
public ChatVoiceReceiveHolder(View root) {
super(root);
}
public ChatItemVoiceReceiveBinding getBinding() {
return binding;
}
public void setBinding(ChatItemVoiceReceiveBinding binding) {
this.binding = binding;
}
}
public class ChatItemImageReceiveHolder extends RecyclerView.ViewHolder
{
private ChatItemImageReceiveBinding binding;
public ChatItemImageReceiveHolder(View itemView) {
super(itemView);
}
public ChatItemImageReceiveBinding getBinding() {
return binding;
}
public void setBinding(ChatItemImageReceiveBinding binding) {
this.binding = binding;
}
}
public class ChatItemImageSendHolder extends RecyclerView.ViewHolder{
private ChatItemImageSendBinding binding;
public ChatItemImageSendHolder(View itemView) {
super(itemView);
}
public ChatItemImageSendBinding getBinding() {
return binding;
}
public void setBinding(ChatItemImageSendBinding binding) {
this.binding = binding;
}
}
public class ChatItemFileReceiveHolder extends RecyclerView.ViewHolder{
private ChatItemFileReceiveBinding binding;
public ChatItemFileReceiveHolder(View root) {
super(root);
}
public ChatItemFileReceiveBinding getBinding() {
return binding;
}
public void setBinding(ChatItemFileReceiveBinding binding) {
this.binding = binding;
}
}
public class ChatItemFileSendHolder extends RecyclerView.ViewHolder{
private ChatItemFileSendBinding binding;
public ChatItemFileSendHolder(View itemView) {
super(itemView);
}
public ChatItemFileSendBinding getBinding() {
return binding;
}
public void setBinding(ChatItemFileSendBinding binding) {
this.binding = binding;
}
}
}
的getImage
public void getAvtivityResult(int requestCode, int resultCode, Intent data) {
// 因为调用了Camera和Gally所以要判断他们各自的返回情况,他们启动时是这样的startActivityForResult
if (resultCode != RESULT_OK)
return;
switch (requestCode) {
case PhotoUtils.PHOTO_PICKED_WITH_DATA: {// 调用Gallery返回的
Bitmap photo = data.getParcelableExtra("data");
// 下面就是显示照片了
break;
}
case PhotoUtils.CAMERA_WITH_DATA: {// 照相机程序返回的,再次调用图片剪辑程序去修剪图片
String currentPicPath = data.getStringExtra("currentPicPath");
Bitmap scaleBitmap = BitmapUtil.decodeSampledBitmapFromFile(currentPicPath, ViewUtils.dip2px(80), ViewUtils.dip2px(60));
String cacheImagePath = ImageCacheUtils.saveBitmap(scaleBitmap);
if (!TextUtils.isEmpty(currentPicPath)) {
//msg, false, currentToUserName
EMMessage msg = EMMessage.createImageSendMessage(/*currentPicPath*/cacheImagePath, false/*是否发送原图*/, currentToUserName);
updateMsgList(msg);
}
break;
}
case PhotoUtils.FILE_SELECT_CODE:
if (data!=null){
Uri uri = data.getData();
String path = IntentUtil.getPath(activity, uri);
if (!TextUtils.isEmpty(path)){
EMMessage message = EMMessage.createFileSendMessage(path,currentToUserName);
updateMsgList(message);
}
}
break;
}
}
refreshAdapter
public void updateMsgList(List<EMMessage> mess) {
LogManager.d("updateMsgList");
if (chatRecordAdapter != null) {
List<ChatModel> messages = chatRecordAdapter.getMessages();
if (messages != null) {
if (mess.size() == 1) {
updateMsgList(mess.get(0));
} else {
List<ChatModel> chatOnlineViewModels = convertMessages(mess);
if (chatOnlineViewModels != null) {
LogManager.e("UPDATE::::", "LIST--");
messages.addAll(chatOnlineViewModels);
chatRecordAdapter.notifyDataSetChanged();
if (onDataChange != null) {
onDataChange.onChange();
}
}
}
}
}
}
当我设置 TYPE_RECEIVE_IMAGE 数据集的类型，然后说出这个错误，这是一个运行时错误，我找不到问题，帮帮我！