java.lang.NullPointerException: Versuch, auf Null-Array zu schreiben

Question

Ich bekomme Rumpf Array-Fehler, wenn ich versuche, meine Tasten zu initialisieren btnEdit, btnDelete, btnView Ich weiß, das Problem ist mit der Initialisierung, aber ich weiß nicht, wo genau kann jemand helfen? Ich weiß, das Problem ist mit der Initialisierung, aber ich weiß nicht wo genau, kann jemand helfen?

here is my code: 

package com.astro.famouspandit.Activities.Activity; 

import android.content.Context; 
import android.content.Intent; 
import android.os.Bundle; 
import android.support.design.widget.FloatingActionButton; 
import android.support.design.widget.Snackbar; 
import android.support.v7.app.AppCompatActivity; 
import android.support.v7.widget.Toolbar; 
import android.util.Log; 
import android.view.LayoutInflater; 
import android.view.View; 
import android.widget.Button; 
import android.widget.ImageView; 
import android.widget.LinearLayout; 
import android.widget.Switch; 
import android.widget.TextView; 
import android.widget.Toast; 

import com.astro.famouspandit.Database.DatabaseHelper; 
import com.astro.famouspandit.R; 
import com.astro.famouspandit.datasets.ItemProfile; 

import java.util.ArrayList; 

import mehdi.sakout.fancybuttons.FancyButton; 

public class ProfleList extends AppCompatActivity implements View.OnClickListener{ 
    private TextView txtProfileName,txtProfileDate,txtProfileTime,txtProfileLocation; 
    private FancyButton[] btnEdit,btnDelete,btnView; 
    LinearLayout linearlist ; 
    long count; 

    DatabaseHelper mydb; 

    @Override 
    protected void onCreate(Bundle savedInstanceState) { 
     super.onCreate(savedInstanceState); 
     setContentView(R.layout.activity_profle_list); 


     mydb = new DatabaseHelper(this); 
     count = mydb.getCount(); 
     Log.d("count", "onCreate: "+count); 

     if (count == 0){ 

     }else{ 
      ArrayList<ItemProfile> listprofile = mydb.profilelist(); 
      for (int i = 1; i < count+1; i++) { 
       ItemProfile itemProfile = listprofile.get(i-1); 


       linearlist = (LinearLayout)findViewById(R.id.layoutlist); 
       View[] myView = new View[i]; 

       LayoutInflater inflater = (LayoutInflater) getSystemService(Context.LAYOUT_INFLATER_SERVICE); 
       myView[i-1] = inflater.inflate(R.layout.profile_list, null); 

       txtProfileName = (TextView)myView[i-1].findViewById(R.id.txtName); 
       txtProfileDate = (TextView)myView[i-1].findViewById(R.id.txtDate); 
       txtProfileTime = (TextView)myView[i-1].findViewById(R.id.txtTime); 
       txtProfileLocation = (TextView)myView[i-1].findViewById(R.id.txtLocation); 

       btnEdit = new FancyButton[i]; 
       btnEdit = new FancyButton[i]; 
       btnEdit = new FancyButton[i]; 


       btnEdit[i-1] = (FancyButton)myView[i-1].findViewById(R.id.btn_edtProfile); 
       btnDelete[i-1] = (FancyButton)myView[i-1].findViewById(R.id.btn_deleteProfile); 
       btnView[i-1] = (FancyButton)myView[i-1].findViewById(R.id.btn_viewProfile); 

       btnEdit[i].setOnClickListener(this); 
       btnDelete[i].setOnClickListener(this); 
       btnDelete[i].setOnClickListener(this); 


       String profileName = itemProfile.getProfileName(); 
       txtProfileName.setText(profileName); 
       Log.d("ProfileName", "onCreate: "+itemProfile.getProfileName()); 
       int dd = itemProfile.getDay(); 
       int mm = itemProfile.getMonth(); 
       int yy = itemProfile.getYear(); 
       txtProfileDate.setText(dd+"/"+mm+"/"+yy); 
       Log.d("Profiledate", "onCreate: "+itemProfile.getDay()+itemProfile.getMonth()+itemProfile.getYear()); 
       int hour = itemProfile.getHour(); 
       int min = itemProfile.getMinute(); 
       txtProfileTime.setText(hour+":"+min); 
       Log.d("ProfileTime", "onCreate: "+itemProfile.getHour()+itemProfile.getHour()); 
       String city = itemProfile.getCity(); 
       txtProfileLocation.setText(itemProfile.getCity()); 
       Log.d("citylocation,city", "onCreate: "+itemProfile.getCity()+","+city); 
       linearlist.addView(myView[i-1]); 


      } 


     } 


    } 

    @Override 
    public void onClick(View v) { 
     int index = 0; 
      for (int i = 0; i < count; i++) 
      { 
       if (btnEdit[i].getId() == v.getId()) 
       { 
        index = i; 
        Toast.makeText(ProfleList.this, "btnEdit"+index, Toast.LENGTH_SHORT).show(); 
        break; 
       }else 
       if (btnDelete[i].getId() == v.getId()) 
       { 
        index = i; 
        Toast.makeText(ProfleList.this, "btnDelete"+index, Toast.LENGTH_SHORT).show(); 
        break; 
       }else 
       if (btnView[i].getId() == v.getId()) 
       { 
        index = i; 
        Toast.makeText(ProfleList.this, "btnView"+index, Toast.LENGTH_SHORT).show(); 
        break; 
       } 
      } 

      // index is now the array index of the button that was clicked 

    } 
} 

Answer 1

ändern diese:

btnEdit = new FancyButton[i]; 
btnEdit = new FancyButton[i]; 
btnEdit = new FancyButton[i]; 


btnEdit[i-1] = (FancyButton)myView[i-1].findViewById(R.id.btn_edtProfile); 
btnDelete[i-1] = (FancyButton)myView[i-1].findViewById(R.id.btn_deleteProfile); 
btnView[i-1] = (FancyButton)myView[i-1].findViewById(R.id.btn_viewProfile); 

btnEdit[i].setOnClickListener(this); 
btnDelete[i].setOnClickListener(this); 
btnDelete[i].setOnClickListener(this); 

zu, dass:

btnEdit = new FancyButton[i]; 
btnDelete= new FancyButton[i]; 
btnView= new FancyButton[i]; 


btnEdit[i-1] = (FancyButton)myView[i-1].findViewById(R.id.btn_edtProfile); 
btnDelete[i-1] = (FancyButton)myView[i-1].findViewById(R.id.btn_deleteProfile); 
btnView[i-1] = (FancyButton)myView[i-1].findViewById(R.id.btn_viewProfile); 

btnEdit[i].setOnClickListener(this); 
btnDelete[i].setOnClickListener(this); 
btnView[i].setOnClickListener(this);