这是片段
private TextView tv_name,tv_email,tv_message;
private SharedPreferences pref;
private AppCompatButton btn_change_password,btn_order,btn_logout;
private EditText et_old_password,et_new_password;
private AlertDialog dialog;
private ProgressBar progress;
EditText cardnumber;
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.fragment_profile,container,false);
initViews(view);
return view;
}
@Override
public void onViewCreated(View view, Bundle savedInstanceState) {
pref = getActivity().getPreferences(0);
tv_name.setText("Welcome : "+pref.getString(Constants.NAME,""));
tv_email.setText(pref.getString(Constants.EMAIL, ""));
}
private void initViews(View view){
tv_name = (TextView)view.findViewById(R.id.tv_name);
tv_email = (TextView)view.findViewById(R.id.tv_email);
btn_change_password = (AppCompatButton)view.findViewById(R.id.btn_chg_password);
btn_order = (AppCompatButton)view.findViewById(R.id.btn_order);
btn_logout = (AppCompatButton)view.findViewById(R.id.btn_logout);
btn_change_password.setOnClickListener(this);
btn_order.setOnClickListener(this);
btn_logout.setOnClickListener(this);
}
private void showDialog(){
AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
LayoutInflater inflater = getActivity().getLayoutInflater();
View view = inflater.inflate(R.layout.dialog_change_password, null);
et_old_password = (EditText)view.findViewById(R.id.et_old_password);
et_new_password = (EditText)view.findViewById(R.id.et_new_password);
tv_message = (TextView)view.findViewById(R.id.tv_message);
progress = (ProgressBar)view.findViewById(R.id.progress);
builder.setView(view);
builder.setTitle("Change Password");
builder.setPositiveButton("Change Password", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
}
});
builder.setNegativeButton("Cancel", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
dialog.dismiss();
}
});
dialog = builder.create();
dialog.show();
dialog.getButton(AlertDialog.BUTTON_POSITIVE).setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
String old_password = et_old_password.getText().toString();
String new_password = et_new_password.getText().toString();
if (!old_password.isEmpty() && !new_password.isEmpty()) {
progress.setVisibility(View.VISIBLE);
changePasswordProcess(pref.getString(Constants.EMAIL, ""), old_password, new_password);
} else {
tv_message.setVisibility(View.VISIBLE);
tv_message.setText("Fields are empty");
}
}
});
}
@Override
public void onClick(View v) {
switch (v.getId()){
case R.id.btn_chg_password:
showDialog();
break;
case R.id.btn_order:
Intent myIntent = new Intent(getActivity(), activityresult1.class);
startActivity(myIntent);
break;
case R.id.btn_logout:
logout();
break;
}
}
private void logout() {
SharedPreferences.Editor editor = pref.edit();
editor.putBoolean(Constants.IS_LOGGED_IN,false);
editor.putString(Constants.EMAIL,"");
editor.putString(Constants.NAME,"");
editor.putString(Constants.UNIQUE_ID,"");
editor.apply();
goToLogin();
}
private void goToLogin(){
Fragment login = new LoginFragment();
FragmentTransaction ft = getFragmentManager().beginTransaction();
ft.replace(R.id.fragment_frame,login);
ft.commit();
}
private void changePasswordProcess(String email,String old_password,String new_password){
Retrofit retrofit = new Retrofit.Builder()
.baseUrl(Constants.BASE_URL)
.addConverterFactory(GsonConverterFactory.create())
.build();
com.example.android.cardemulation.RequestInterface requestInterface = retrofit.create(com.example.android.cardemulation.RequestInterface.class);
User user = new User();
user.setEmail(email);
user.setOld_password(old_password);
user.setNew_password(new_password);
ServerRequest request = new ServerRequest();
request.setOperation(Constants.CHANGE_PASSWORD_OPERATION);
request.setUser(user);
Call<ServerResponse> response = requestInterface.operation(request);
response.enqueue(new Callback<ServerResponse>() {
@Override
public void onResponse(Call<ServerResponse> call, retrofit2.Response<ServerResponse> response) {
ServerResponse resp = response.body();
if(resp.getResult().equals(Constants.SUCCESS)){
progress.setVisibility(View.GONE);
tv_message.setVisibility(View.GONE);
dialog.dismiss();
Snackbar.make(getView(), resp.getMessage(), Snackbar.LENGTH_LONG).show();
}else {
progress.setVisibility(View.GONE);
tv_message.setVisibility(View.VISIBLE);
tv_message.setText(resp.getMessage());
}
}
@Override
public void onFailure(Call<ServerResponse> call, Throwable t) {
Log.d(Constants.TAG,"failed");
progress.setVisibility(View.GONE);
tv_message.setVisibility(View.VISIBLE);
tv_message.setText(t.getLocalizedMessage());
}
});
}
当我按下片段中的 btn_order 按钮时，我想进入 activityresult1 ，以便我可以转到 activityresult1 ，它会显示 tv_email 的EMAIL请帮助我
这是activityresult1
Button buttonorder;
TextView textviewemail;
private static final int REQUEST_CODE = 10;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_activityresult1);
Bundle extras = getIntent().getExtras();
String tv_email = extras.getString("tv_email");
textviewemail = (TextView) findViewById(R.id.textviewemail);
textviewemail.setText("Welcome, " + tv_email+ " !" + "\nPlease select the food you want ! : ");
答案 0 :(得分：1)
用于传递电子邮件值，请在订单按钮中单击
编写以下代码Intent myIntent = new Intent(getActivity(), activityresult1.class);
myIntent.putExtra("email", pref.getString(Constants.EMAIL, ""));
startActivity(myIntent);
然后编写此代码以获取您想要的活动的电子邮件值
getIntent().getExtras().getString("email");
答案 1 :(得分：1)
在片段中实现以下界面：
1.76在您的活动中实现CallbackFragment.Callback，覆盖此回调的方法。然后使用您要发送的数据。
实施如下：
public interface Callback {
//Here Object class means data which you want to sent from fragment to activity
void setData(String email);
}