Button onClickListener funktioniert nicht in Fragment

Question

Ich versuche, einige einfache Berechnungen zu tun, habe ich einen Listener auf meinem Fragment Aber es löst nicht die onClick Methode und das Protokoll zeigt nichts, Nach einer akzeptierten Antwort hier sollte dies funktionieren, und die meisten Alternativen nicht für mich arbeiten, Was ist die Ursache für dieses Verhalten das ist mein Fragment ist

public class AttendanceFragment extends Fragment implements View.OnClickListener { 
    EditText ET_days,ET_week; 
    TextView TV_attendance; 
    Button btn; 
    static int attendance; 
    public static final String TAG = "Checking"; 

    @Nullable 
    @Override 
    public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) { 
     View v = inflater.inflate(R.layout.attendance,container,false); 

     ET_days= (EditText) v.findViewById(R.id.et_days); 
     ET_week= (EditText)v.findViewById(R.id.et_week); 
     TV_attendance=(TextView) v.findViewById(R.id.tv_attendance); 
     btn=(Button)v.findViewById(R.id.btn_attendance); 
     btn.setOnClickListener(this); 



     return v; 
    } 


    @Override 
    public void onClick(View view) { 
     int days =Integer.parseInt(ET_days.getText().toString()); 
     int week= Integer.parseInt(ET_week.getText().toString()); 
     int d = days * 5; 
     int w = week * 75; 

     attendance= (d/w) * 100; 
     String att= String.valueOf(attendance); 
     Log.d("ATtendance",att); 

     TV_attendance.setText("Your Current Attendance is:"+att); 
    } 

} 

das ist mein Layout:

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" 
    android:orientation="vertical" android:layout_width="match_parent" 
    android:layout_height="match_parent" 
    android:paddingLeft="10dp" 
    > 

    <TextView 
     android:layout_width="match_parent" 
     android:layout_height="wrap_content" 
     android:id="@+id/tv_days" 
     android:text="Enter The number of days you have missed so Far" 
     android:textSize="20sp" 
     android:layout_marginTop="20dp" 
     android:layout_gravity="center" 
     /> 
    <EditText 
    android:layout_width="200dp" 
    android:layout_height="wrap_content" 
    android:layout_gravity="center" 
    android:hint="days missed" 
    android:id="@+id/et_days" 
    /> 

    <TextView 
     android:layout_width="match_parent" 
     android:layout_height="wrap_content" 
     android:id="@+id/tv_week" 
     android:text="Enter The Current school week Number " 
     android:textSize="20sp" 
     android:layout_marginTop="20dp" 
     /> 
    <EditText 
     android:layout_width="200dp" 
     android:layout_height="wrap_content" 
     android:layout_gravity="center" 
     android:hint="week number" 
     android:id="@+id/et_week" 
     /> 

    <TextView 
     android:layout_width="wrap_content" 
     android:layout_height="wrap_content" 
     android:text="Your Current Attendance is: 85%" 
     android:layout_marginTop="40dp" 
     android:textSize="30sp" 
     android:id="@+id/tv_attendance" 
     /> 

    <Button 
     style="@style/Widget.AppCompat.Button.Borderless" 

     android:layout_width="250dp" 
     android:layout_height="60dp" 
     android:id="@+id/btn_attendance" 
     android:layout_marginTop="80dp" 
     android:layout_gravity="center" 
     android:text="Check Attendance" 
     android:textSize="18sp" 
     android:background="@drawable/button_selector" 
     android:textColor="@color/white" 


     /> 


</LinearLayout> 

EDIT: das Fragment ist ein Teil von 5 fragents in BottomBar Diese sind in meinem MainActivity

public class MainActivity extends AppCompatActivity { 
    private int STORAGE_PERMISSION_CODE = 7; 
    BottomBar mBottomBar; 
    public static int m= 0; 

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




     mBottomBar = BottomBar.attach(this,savedInstanceState); 
     mBottomBar.setItemsFromMenu(R.menu.menu_main,new OnMenuTabClickListener() 



     { 


      public void onMenuTabSelected(@IdRes int i) { 
       if(i==R.id.Bottombaritemone) 
       { 
        NewsFRagment f = new NewsFRagment(); 
        getSupportFragmentManager().beginTransaction().replace(R.id.main_container,f).commit(); 

       } 
       else if(i==R.id.Bottombaritemtwo) 
       { 
        AttendanceFragment f =new AttendanceFragment(); 
        getSupportFragmentManager().beginTransaction().replace(R.id.main_container,f).commit(); 
       } 
       else if(i==R.id.Bottombaritemthree) 
       { 
        PhoneFragment f =new PhoneFragment(); 
        getSupportFragmentManager().beginTransaction().replace(R.id.main_container,f).commit(); 

       } 
       else if(i==R.id.Bottombaritemfour) 
       { 

        UploadFragment f =new UploadFragment(); 
        getSupportFragmentManager().beginTransaction().replace(R.id.main_container,f).commit(); 
        if (m == 0) { 


         if (isReadStorageAllowed()) { 
          //If permission is already having then showing the toast 
          //Existing the method with return 
          return; 
         } 

         //If the app has not the permission then asking for the permission 
         requestStoragePermission(); 
        } 

       } 
       else if(i==R.id.Bottombaritemfive) 
       { 
        FavoritesFragment f =new FavoritesFragment(); 
        getSupportFragmentManager().beginTransaction().replace(R.id.main_container,f).commit(); 
       } 
      } 



      @Override 
      public void onMenuTabReSelected(@IdRes int i) { 

      } 
     }); 
     mBottomBar.mapColorForTab(0, "#F44336"); 
     mBottomBar.mapColorForTab(1,"#9C27B0"); 
     mBottomBar.mapColorForTab(2,"#03A9F4"); 
     mBottomBar.mapColorForTab(3,"#795548"); 
     mBottomBar.mapColorForTab(4,"#FF6F00"); 

     BottomBarBadge unread; 
     unread = mBottomBar.makeBadgeForTabAt(3,"#FF0000",13); 
     unread.show(); 


    } 


    //We are calling this method to check the permission status 
    private boolean isReadStorageAllowed() { 
     //Getting the permission status 
     int result = ContextCompat.checkSelfPermission(this, Manifest.permission.READ_EXTERNAL_STORAGE); 

     //If permission is granted returning true 
     if (result == PackageManager.PERMISSION_GRANTED) 
      return true; 

     //If permission is not granted returning false 
     return false; 
    } 

    //Requesting permission 
    private void requestStoragePermission(){ 

     if (ActivityCompat.shouldShowRequestPermissionRationale(this,Manifest.permission.READ_EXTERNAL_STORAGE)){ 
      //If the user has denied the permission previously your code will come to this block 
      //Here you can explain why you need this permission 
      //Explain here why you need this permission 
      Toast.makeText(MainActivity.this,"Need permission to read fles for upload",Toast.LENGTH_LONG).show(); 

     } 

     //And finally ask for the permission 
     ActivityCompat.requestPermissions(this,new String[]{Manifest.permission.READ_EXTERNAL_STORAGE},STORAGE_PERMISSION_CODE); 
     Log.d("Permission Requested","Permission requested"); 
    } 

    //This method will be called when the user will tap on allow or deny 
    @Override 
    public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) { 

     //Checking the request code of our request 
     if(requestCode == STORAGE_PERMISSION_CODE){ 

      //If permission is granted 
      if(grantResults.length >0 && grantResults[0] == PackageManager.PERMISSION_GRANTED){ 

       //Displaying a toast 
       Toast.makeText(this,"Permission granted now you can read the storage",Toast.LENGTH_LONG).show(); 
      }else{ 
       //Displaying another toast if permission is not granted 
       Toast.makeText(this,"Oops you just denied the permission",Toast.LENGTH_LONG).show(); 
      } 
     } 
    } 




    @Override 
    public boolean onCreateOptionsMenu(Menu menu) { 
     // Inflate the menu; this adds items to the action bar if it is present. 
     getMenuInflater().inflate(R.menu.menu_main, menu); 
     return true; 
    } 


} 

Answer 1

dieses sollte jetzt versuchen

@Override 
public void onClick(View view) { 
    switch (view.getId()){ 

    case R.id.R.id.btn_attendance: 
int days =Integer.parseInt(ET_days.getText().toString()); 
int week= Integer.parseInt(ET_week.getText().toString()); 
int d = days * 5; 
int w = week * 75; 
attendance= (d/w) * 100; 
String att= String.valueOf(attendance); 
Log.d("ATtendance",att); 
TV_attendance.setText("Your Current Attendance is:"+att); 
break; 
} 
} 

arbeiten, wie Sie