关于自定义对话框

Question

比如我在a类要引用了自定义对话框并往里面输入了数据，现在我要对自定义对话框进行监听，代码没报错，但是一打开要弹出对话框的时候就崩了。是我写错地方了吗，应该怎么写

private void init(final View view) {
  TextView tv_class = (TextView) view.findViewById(R.id.tv_class);
  tv_class.setOnClickListener(new OnClickListener(){
     @Override
     public void onClick(View v) {
              LayoutInflater inflater = getLayoutInflater(null);
              View layout = inflater.inflate(R.layout.dialog, (ViewGroup) view.findViewById(R.id.dialog));
              AlertDialog.Builder builder = new AlertDialog.Builder(Fragment1.super.getContext())
                      .setView(layout);
              builder.create().show();

              final EditText classname = (EditText) view.findViewById(R.id.class_name);
              final EditText classroom = (EditText) view.findViewById(R.id.class_room);
              final EditText classtime = (EditText) view.findViewById(R.id.class_time);
              final EditText classteacher = (EditText) view.findViewById(R.id.class_teacher);
              Button classd = (Button) view.findViewById(R.id.class_d);
              classd.setOnClickListener(new OnClickListener() {
                  @Override
                  public void onClick(View v) {
                      SharedPreferences preferences=getActivity().getSharedPreferences("class1", Context.MODE_PRIVATE);
                      SharedPreferences.Editor editor=preferences.edit();
                      String name = classname.getText().toString();
                      String room = classroom.getText().toString();
                      String time = classtime.getText().toString();
                      String teacher = classteacher.getText().toString();

                      editor.putString("classname",name);
                      editor.putString("classroom",room);
                      editor.putString("classtime",time);
                      editor.putString("classteacher",teacher);
                      editor.commit();

                  }
              });

     }
      });
     /* SharedPreferences preferences=getActivity().getSharedPreferences("class1", Context.MODE_PRIVATE);
      String name =preferences.getString("classname", "");
      String room =preferences.getString("classroom", "");
      String time =preferences.getString("classtime", "");
      String teacher =preferences.getString("classteacher", "");*/

}

Answer 1

把报错信息贴出来

Answer 2

代码格式化先， 这样的代码比较难看