java - 尝试使用变量时 Android 应用程序崩溃

Question

你好，在我的应用程序中，我有三个片段，其中一个是 HomeFragment，我从 Firebase 实时数据库中获取所有用户详细信息，onDataChange如果我将用户数据存储到用户对象中，但是当我尝试在按钮中使用来自该对象的信息时onClick事件我的应用程序崩溃。

Logcat 错误

08-01 13:12:51.900 11158-11158/com.cbcwebs.luto.luto D/AndroidRuntime: Shutting down VM
08-01 13:12:51.900 11158-11158/com.cbcwebs.luto.luto E/AndroidRuntime: FATAL EXCEPTION: main
    Process: com.cbcwebs.luto.luto, PID: 11158
    android.content.res.Resources$NotFoundException: String resource ID #0x4d
        at android.content.res.Resources.getText(Resources.java:331)
        at android.widget.Toast.makeText(Toast.java:287)
        at com.cbcwebs.luto.luto.HomeFragment.processUSerBuy(HomeFragment.java:82)
        at com.cbcwebs.luto.luto.HomeFragment$1.onClick(HomeFragment.java:69)
        at android.view.View.performClick(View.java:5610)
        at android.view.View$PerformClick.run(View.java:22265)
        at android.os.Handler.handleCallback(Handler.java:751)
        at android.os.Handler.dispatchMessage(Handler.java:95)
        at android.os.Looper.loop(Looper.java:154)
        at android.app.ActivityThread.main(ActivityThread.java:6077)
        at java.lang.reflect.Method.invoke(Native Method)
        at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:866)
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:756)
08-01 13:17:39.606 11158-11186/com.cbcwebs.luto.luto I/FirebaseAuth: [FirebaseAuth:] Loading module via FirebaseOptions.
    [FirebaseAuth:] Preparing to create service connection to gms implementation

首页片段

public class HomeFragment extends Fragment {
    private  Integer time;
    private  TextView timeLeftView;
    Button btn;
    private Integer currentCoinsUser;

    private Integer currentCoins;
    @Nullable
    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
                             Bundle savedInstanceState) {
         View rootView = inflater.inflate(R.layout.fragment_home, container, false);


         getUserInfo();
        btn = (Button) rootView.findViewById(R.id.playLotteryButton);
        btn.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View arg0) {
              processUSerBuy();
            }
        });
        return rootView;
    }
    public  void processUSerBuy() {
        Toast.makeText(getActivity(),currentCoinsUser, Toast.LENGTH_LONG).show();
    }


    public void getUserInfo() {
        String UID = "XXXXXXXXXXXX";
        DatabaseReference mFirebaseDbReferenceUserChild = FirebaseDatabase.getInstance().getReference("users");
        DatabaseReference mFirebaseDbReferenceCurrentUser= mFirebaseDbReferenceUserChild.child(UID);
        mFirebaseDbReferenceCurrentUser.addListenerForSingleValueEvent(new ValueEventListener() {
            @Override
            public void onDataChange(DataSnapshot dataSnapshot) {
                User user = dataSnapshot.getValue(User.class);
                Userbalance.setText("₹"+user.getUserBalanace());
                Userearning.setText("₹"+user.getUserEarning());
                UserInvest.setText("₹"+user.getUserInvest());
                currentCoins = user.getUserCoins();
                storeUserInfo(currentCoins);
            }
            @Override
            public void onCancelled(DatabaseError name) {
            }
        });
    }
   public  void storeUserInfo(Integer currentCoins) {
       currentCoinsUser = currentCoins;
    }
}

标签： javaandroid