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Я новичок в программировании android, и у меня есть две проблемы в классе AsyncTask с именем RetrieveTokenTask(), в этом классе я получаю токен для доступа к учетной записи электронной почты в gmail, когда я вызываю Класс AsyncTask создает бесконечный цикл, и сообщение для апробации открыто и закрыто для приложения.У меня есть проблема с классом AsyncTask
Другая проблема заключается в том, когда я нажимаю кнопку отменить доступ к данным, когда повторите попытку входа в приложение, не покажите макет с данными.
Я сделал это после некоторых уроков.
Любая помощь поможет.
Спасибо и прошу прощения за любую ошибку в моем письме, но мой английский не очень хорош.
Этот код мили приложения является следующим:
`protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
` ...
//Initializing google plus api client
mGoogleApiClient = new GoogleApiClient.Builder(this)
.addConnectionCallbacks(this)
.addOnConnectionFailedListener(this).addApi(Plus.API)
.addScope(Plus.SCOPE_PLUS_LOGIN).build();
}
protected void onStart(){
super.onStart();
mGoogleApiClient.connect();
}
protected void onStop(){
super.onStop();
if(mGoogleApiClient.isConnected()){
mGoogleApiClient.disconnect();
}
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.main, menu);
return true;
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
// Handle action bar item clicks here. The action bar will
// automatically handle clicks on the Home/Up button, so long
// as you specify a parent activity in AndroidManifest.xml.
int id = item.getItemId();
if (id == R.id.action_settings) {
return true;
}
return super.onOptionsItemSelected(item);
}
@Override
public void onClick(View v) {
switch(v.getId()){
case R.id.btn_sign_in:
signInWithGplus();
break;
case R.id.btn_sign_out:
signOutFromGplus();
break;
case R.id.btn_revoke_access:
revokeGplusAccess();
break;
}
}
@Override
public void onConnectionFailed(ConnectionResult result) {
if(!result.hasResolution()){
GooglePlayServicesUtil.getErrorDialog(result.getErrorCode(), this,
0).show();
return;
}
if(!mIntentInProgress){
//Store the connection for later usage
mConnectionResult = result;
if(mSignInClicked){
// The user has already clicked 'sign-in' so we attempt to
// resolve all
// errors until the user is signed in, or they cancel.
resolveSignInError();
}
}
}
@Override
public void onConnected(Bundle arg0) {
mSignInClicked = false;
Toast.makeText(this, "User is connected", Toast.LENGTH_LONG).show();
// Get User's information
getProfileInformation();
// Update the UI after sign-in
updateUI(true);
}
@Override
public void onConnectionSuspended(int arg0) {
mGoogleApiClient.connect();
updateUI(false);
}
private void updateUI(boolean isSignedIn){
if(isSignedIn){
btnSignIn.setVisibility(View.GONE);
btnSignOut.setVisibility(View.VISIBLE);
btnRevokeAccess.setVisibility(View.VISIBLE);
llProfileLayout.setVisibility(View.VISIBLE);
}
else {
btnSignIn.setVisibility(View.VISIBLE);
btnSignOut.setVisibility(View.GONE);
btnRevokeAccess.setVisibility(View.GONE);
llProfileLayout.setVisibility(View.GONE);
}
}
/*
* Sign-in into google
*/
private void signInWithGplus(){
if(!mGoogleApiClient.isConnecting()){
mSignInClicked = true;
resolveSignInError();
}
}
/*
* Method to resolve any sign-in errors
*/
private void resolveSignInError(){
if(mConnectionResult.hasResolution()){
try{
mIntentInProgress = true;
mConnectionResult.startResolutionForResult(this, RC_SIGN_IN);
}
catch(SendIntentException e){
mIntentInProgress = false;
mGoogleApiClient.connect();
}
}
}
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
if (requestCode == RC_SIGN_IN) {
mIntentInProgress = false;
if (resultCode == RESULT_OK) {
// Make sure the app is not already connected or attempting to connect
if (!mGoogleApiClient.isConnecting() &&
!mGoogleApiClient.isConnected()) {
mGoogleApiClient.connect();
}
}
}
}
/*
* User's information name, email, profile pic
*/
private void getProfileInformation(){
try{
if(Plus.PeopleApi.getCurrentPerson(mGoogleApiClient) != null){
Person currentPerson = Plus.PeopleApi.getCurrentPerson(mGoogleApiClient);
String personName = currentPerson.getDisplayName();
String perosnPhotoUrl = currentPerson.getImage().getUrl();
String personGooglePlusProfile = currentPerson.getUrl();
String email = Plus.AccountApi.getAccountName(mGoogleApiClient);
Log.e(TAG, "Name: " + personName + ", plusProfile: "
+ personGooglePlusProfile + ", email: " + email
+ ", Image: " + perosnPhotoUrl);
txtName.setText(personName);
txtEmail.setText(email);
perosnPhotoUrl = perosnPhotoUrl.substring(0,
perosnPhotoUrl.length() - 2)
+ PROFILE_PIC_SIZE;
new LoadProfileImage(imgProfilePic).execute(perosnPhotoUrl);
new RetrieveTokenTask(txtToken).execute(email);
}
else{
Toast.makeText(getApplicationContext(),
"Person informations is null", Toast.LENGTH_LONG).show();
}
}
catch(Exception e){
e.printStackTrace();
}
}
/*
* Background Async task to load user profile picture from url
*/
private class LoadProfileImage extends AsyncTask<String, Void, Bitmap>{
ImageView bmImage;
public LoadProfileImage(ImageView bmImage){
this.bmImage = bmImage;
}
@Override
protected Bitmap doInBackground(String... urls) {
String urldisplay = urls[0];
Bitmap mIcon11 = null;
try{
InputStream in = new java.net.URL(urldisplay).openStream();
mIcon11 = BitmapFactory.decodeStream(in);
}
catch(Exception e){
Log.e("Error", e.getMessage());
e.printStackTrace();
}
return mIcon11;
}
protected void onPostExecute(Bitmap result){
bmImage.setImageBitmap(result);
}
}
/*
* Sign-out from google
*/
private void signOutFromGplus(){
if(mGoogleApiClient.isConnected()){
Plus.AccountApi.clearDefaultAccount(mGoogleApiClient);
mGoogleApiClient.disconnect();
mGoogleApiClient.connect();
updateUI(false);
}
}
/*
* Revoking access from google
*/
private void revokeGplusAccess(){
if(mGoogleApiClient.isConnected()){
Plus.AccountApi.clearDefaultAccount(mGoogleApiClient);
Plus.AccountApi.revokeAccessAndDisconnect(mGoogleApiClient)
.setResultCallback(new ResultCallback<Status>() {
@Override
public void onResult(Status arg0) {
Log.e(TAG, "User acces revoked!");
mGoogleApiClient.connect();
updateUI(false);
}
});
}
}
private class RetrieveTokenTask extends AsyncTask<String, Void, String> {
TextViewTkn Tkn;
private RetrieveTokenTask(TextView tkn){
this.Tkn = tkn;
}
@Override
protected String doInBackground(String... params) {
String accountName = params[0];
String scopes = "oauth2:https://www.googleapis.com/auth/gmail.compose";
String token = null;
try {
token = GoogleAuthUtil.getToken(getApplicationContext(), accountName, scopes);
} catch (IOException e) {
Log.e(TAGTKN, e.getMessage());
} catch (UserRecoverableAuthException e) {
startActivityForResult(e.getIntent(), REQ_SIGN_IN_REQUIRED);
} catch (GoogleAuthException e) {
Log.e(TAGTKN, e.getMessage());
}
return token;
}
@Override
protected void onPostExecute(String result) {
txtToken.setText(result);
}
}