。getIntent（）getExtras.getInt（ “ID”）;检索空值

Question

我正在尝试传递图像的ID以便使用通知从列表视图中删除条目。但是delGoalId的值显示为“null”。请帮帮我。

错误：NullPointerException：尝试在空对象引用上调用虚方法'int android.os.Bundle.getInt（java.lang.String）'

AlarmReceiver.java

 Intent deleteIntent = new Intent(context, MainActivity.class);
            deleteIntent.setAction("Delete");
            //onReceive(position, mContext, deleteIntent);
            deleteIntent.putExtra("ID", MyImageID.get(0));
            deleteIntent.putExtra("update", true);
            deleteIntent.addFlags(Intent.FLAG_ACTIVITY_SINGLE_TOP | Intent.FLAG_ACTIVITY_CLEAR_TOP);

MainActivity.java

OnCreate()

int delGoalId = getIntent().getExtras().getInt("ID");
            Toast.makeText(getApplicationContext(),"delGoalId value :"+delGoalId,Toast.LENGTH_LONG).show();
 if (delGoalId >= 0) {
                onReceive(delGoalId);
            }

的onReceive（）

 public void onReceive(final int position) {
    final SwipeMenuListView swipelist = (SwipeMenuListView) findViewById(R.id.main_list_view);
    Toast.makeText(getApplicationContext(), "onReceive", Toast.LENGTH_LONG).show();
    final MyImage image = (MyImage) swipelist.getItemAtPosition((int) position);
    String action = getIntent().getAction();

    if ("Delete".equals(action)) {// to execute delete option
        Toast.makeText(getApplicationContext(), "Delete", Toast.LENGTH_LONG).show();
        DialogInterface.OnClickListener dialogClickListener = new DialogInterface.OnClickListener() {
            @Override
            public void onClick(DialogInterface dialog, int which) {
                switch (which) {
                    case DialogInterface.BUTTON_POSITIVE:
                        //Yes button clicked
                        Toast.makeText(getApplicationContext(), image + " " + " is deleted.", Toast.LENGTH_LONG).show();
                        Log.d("Delete Image: ", "Deleting.....");
                        adapter.remove(adapter.getItem((int) position));
                        swipelist.invalidateViews();
                        File fdelete = new File(image.getTitle());
                        if (fdelete.exists())

                        {
                            if (fdelete.delete()) {
                                daOdb.deleteImage(image);
                                daOdb.getImages();
                                // Gets an instance of the NotificationManager service
                                myGoalNotifyMgr = (NotificationManager) getSystemService(NOTIFICATION_SERVICE);
                                // Builds the notification and issues it.
                                myGoalNotifyMgr.cancel(position);
                                System.out.println("File Deleted :" + image.getPath());
                            } else {
                                daOdb.deleteImage(image);
                                daOdb.getImages();
                                System.out.println("File Not Deleted :" + image.getPath());
                            }
                        }
                        swipelist.invalidateViews();
                        dialog.cancel();
                        break;

                    case DialogInterface.BUTTON_NEGATIVE:
                        //No button clicked
                        dialog.cancel();
                        break;
                }
            }
        };

        AlertDialog.Builder builder = new AlertDialog.Builder(MainActivity.this);
        builder.setMessage("Do You Wish To Delete?").setPositiveButton("Yes", dialogClickListener)
                .setNegativeButton("No", dialogClickListener).show();

    }
}