Android Google Drive API身份驗證

Question

我在Android應用中遇到了Google Drive API問題。在我的設備上，使用Android 5.1.1的Nexus 4工作正常。在我用戶的設備上，我沒有顯示我配置的同意屏幕，相反，用戶的電子郵件只顯示一個列表選擇對話框，但它沒有任何作用。

我在Android 5.0.1的其他設備上看到了這個問題。

我使用我的生產SHA1密鑰和同意屏幕配置了OAuth 2.0憑據。就像我說的，它在我的設備上工作正常。

我用下面的參數來編譯我的應用程序：

• 的minSdkVersion = 15
• targeSdKVerion = 22
• compileSdkVersion = 22
• 生成工具：22.0.1
• 平臺工具：23rc3

而這些谷歌圖書館：

• com.android.support:support-v4:22.2.0
• com.android.support:appcompat-v7:22.2.0
• com.android.support:design:22.2.0
• com.google.android.gms：播放服務的廣告：7.5.0
• com.google.android.gms：播放服務驅動：7.5.0

謝謝！

這裏是我的代碼現在的樣子：

@Override 
protected void onActivityResult(int requestCode, int resultCode, Intent data) { 
    if (requestCode == REQUEST_CODE_RESOLUTION) { 
     if (resultCode == RESULT_OK) { 
      // Make sure the app is not already connected or attempting to connect. 
      if (!mBackupAsyncTask.getGoogleApiClient().isConnecting() && 
        !mBackupAsyncTask.getGoogleApiClient().isConnected()) { 
       // Connect and execute the task. 
       mBackupAsyncTask.getGoogleApiClient().connect(); 
      } 
     } 
    } 
} 

@Override 
public void onConnectionFailed(ConnectionResult connectionResult) { 
    Log.i(LOG_TAG, "GoogleApiClient connection failed: " + connectionResult.toString()); 

    if (!connectionResult.hasResolution()) { 
     Log.i(LOG_TAG, "Error with no resolution."); 
     // Show the localized error dialog. 
     GooglePlayServicesUtil.getErrorDialog(connectionResult.getErrorCode(), this, 0).show(); 
    } else { 
     // The failure has a resolution. Resolve it. 
     // Called typically when the app is not yet authorized, and an authorization 
     // dialog is displayed to the user. 
     try { 
      connectionResult.startResolutionForResult(this, REQUEST_CODE_RESOLUTION); 
     } catch (IntentSender.SendIntentException e) { 
      Log.e(LOG_TAG, "Exception while starting resolution activity.", e); 
     } 
    } 
} 

public class DriveBackupAsyncTask extends ApiClientAsyncTask<Object, Void, Metadata> { 

    public DriveBackupAsyncTask(Context context) { 
     super(context); 
    } 

    @Override 
    protected void onPreExecute() { 
     super.onPreExecute(); 
     mProgressBar.setIndeterminate(true); 
     mEfetuarBackupButton.setEnabled(false); 
     mRestaurarBackupButton.setEnabled(false); 
    } 

    @Override 
    protected Metadata doInBackgroundConnected(Object... params) { 
     if (params[0].equals(TASK_BACKUP)) { 
      DriveFile backupFile = DriveBackupHelper.createBackup(
        getGoogleApiClient(), 
        APP_FOLDER, 
        BACKUP_FILE, 
        getDbFile()); 

      if (backupFile != null) 
       return backupFile.getMetadata(getGoogleApiClient()).await().getMetadata(); 
     } 

     if (params[0].equals(TASK_RESTAURAR)) { 
      DriveFile backupFile = DriveBackupHelper.getBackupFile(
        getGoogleApiClient(), 
        APP_FOLDER, 
        BACKUP_FILE); 

      if (backupFile == null) 
       return null; 

      if (DriveBackupHelper.restoreBackup(getGoogleApiClient(), getDbFile(), backupFile)) 
       return backupFile.getMetadata(getGoogleApiClient()).await().getMetadata(); 
     } 

     return null; 
    } 

    @Override 
    protected void onPostExecute(Metadata result) { 
     super.onPostExecute(result); 
     mProgressBar.setIndeterminate(false); 
     mEfetuarBackupButton.setEnabled(true); 
     mRestaurarBackupButton.setEnabled(true); 

     if (result == null) { 
      showError(getString(R.string.bkp_error)); 
     } else { 
      showMessage(getString(R.string.bkp_success)); 
     } 
    } 
} 

Answer 1

這說明假設你的代碼是基於Google API Guide處理連接故障和結構類似於下面的例子（這是從指南複製）：

@Override 
public void onConnectionFailed(ConnectionResult result) { 
    if (mResolvingError) { 
     // Already attempting to resolve an error. 
     return; 
    } else if (result.hasResolution()) { 
     try { 
      mResolvingError = true; 
      // This statement causing posting of the account picker dialog 
      // or other UI to resolve the connection problem. 
      result.startResolutionForResult(this, REQUEST_RESOLVE_ERROR); 
     } catch (SendIntentException e) { 
      // There was an error with the resolution intent. Try again. 
      mGoogleApiClient.connect(); 
     } 
    } else { 
     // Show dialog using GooglePlayServicesUtil.getErrorDialog() 
     showErrorDialog(result.getErrorCode()); 
     mResolvingError = true; 
    } 
} 

您看到的對話框是在用戶需要選擇帳戶時創建的。它是由該聲明onConnectionFailed（）產生：

result.startResolutionForResult(this, REQUEST_RESOLVE_ERROR); 

凡REQUEST_RESOLVE_ERROR是一個整型常量定義。當用戶在對話框中選擇一個帳戶時，您的活動將收到請求代碼等於REQUEST_RESOLVE_ERROR的結果。

@Override 
protected void onActivityResult(int requestCode, int resultCode, Intent data) { 
    if (requestCode == REQUEST_RESOLVE_ERROR) { 
     mResolvingError = false; 
     if (resultCode == RESULT_OK) { 
      // Make sure the app is not already connected or attempting to connect 
      if (!mGoogleApiClient.isConnecting() && 
        !mGoogleApiClient.isConnected()) { 
       mGoogleApiClient.connect(); 
      } 
     } 
    } 
} 

當您在您的文章說，對話「什麼都不做」，這表明你做的：您的活動必須能夠處理類似這樣的結果（也從指南複製）的方法沒有onActivityResult()方法，或者，如果這樣做，代碼沒有正確處理對話框的結果。

如果此答案對您沒有幫助，且您已有onActivityResult()，請將其與onConnectionFailed()一起發佈。