我正在尝试使用quickblox在android中创建一个聊天应用程序演示，我成功地获得了一个用户列表，并且在单击usrlist时，我得到了它的“ id”，我将其传递给创建新的聊天对话框代码，但是它给了我Nullpointer在privatechatmanager。
我的代码是：
public Integer getOpponentIDForPrivateDialog(QBDialog dialog){
Integer opponentID = -1;
for(Integer userID : dialog.getOccupants()){
if(!userID.equals(getCurrentUser().getId())){
opponentID = userID;
break;
}
}
return opponentID;
}
日志猫
06-16 17：11：07.817：
I/System.out(32408): =============MY SELECTED USER==============3588999
06-16 17:11:07.847: D/AndroidRuntime(32408): Shutting down VM
06-16 17:11:07.847: W/dalvikvm(32408): threadid=1: thread exiting with uncaught exception (group=0x418a3da0)
06-16 17:11:07.847: E/AndroidRuntime(32408): FATAL EXCEPTION: main
06-16 17:11:07.847: E/AndroidRuntime(32408): Process: com.amar.chums, PID: 32408
06-16 17:11:07.847: E/AndroidRuntime(32408): java.lang.NullPointerException
06-16 17:11:07.847: E/AndroidRuntime(32408): at com.amar.chums.activity.ManageConnection$2.onItemClick(ManageConnection.java:154)
06-16 17:11:07.847: E/AndroidRuntime(32408): at android.widget.AdapterView.performItemClick(AdapterView.java:313)
06-16 17:11:07.847: E/AndroidRuntime(32408): at android.widget.AbsListView.performItemClick(AbsListView.java:1507)
06-16 17:11:07.847: E/AndroidRuntime(32408): at android.widget.AbsListView$PerformClick.run(AbsListView.java:3514)
06-16 17:11:07.847: E/AndroidRuntime(32408): at android.widget.AbsListView$3.run(AbsListView.java:5072)
06-16 17:11:07.847: E/AndroidRuntime(32408): at android.os.Handler.handleCallback(Handler.java:733)
06-16 17:11:07.847: E/AndroidRuntime(32408): at android.os.Handler.dispatchMessage(Handler.java:95)
06-16 17:11:07.847: E/AndroidRuntime(32408): at android.os.Looper.loop(Looper.java:146)
06-16 17:11:07.847: E/AndroidRuntime(32408): at android.app.ActivityThread.main(ActivityThread.java:5653)
06-16 17:11:07.847: E/AndroidRuntime(32408): at java.lang.reflect.Method.invokeNative(Native Method)
06-16 17:11:07.847: E/AndroidRuntime(32408): at java.lang.reflect.Method.invoke(Method.java:515)
06-16 17:11:07.847: E/AndroidRuntime(32408): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1291)
06-16 17:11:07.847: E/AndroidRuntime(32408): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1107)
06-16 17:11:07.847: E/AndroidRuntime(32408): at dalvik.system.NativeStart.main(Native Method)
请帮助我救我的命.. !!!
最佳答案
尝试处理nullpointer
my_list.setOnItemClickListener(new OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> parent, View view,
int position, long id) {
System.out
.println("=============MY SELECTED USER=============="
+ myConnections.get(position).get("id"));
QBDialog dialog = new QBDialog();
dialog.setType(QBDialogType.PRIVATE);
QBPrivateChatManager privateChatManager = QBChatService
.getInstance().getPrivateChatManager();
// try to handle the null value of both object
// i just discontinue the further code by returning the method ..do as per your requirement
// try to re-instialize or find the case..why its happen
if(privateChatManager == null || myConnections == null)
return;
privateChatManager.createDialog(
Integer.parseInt(myConnections.get(position).get("id")),
new QBEntityCallbackImpl<QBDialog>() {
@Override
public void onSuccess(QBDialog dialog, Bundle args) {
}
@Override
public void onError(List<String> errors) {
}
});
}
});