AbstractDriveApiActivity.java

package com.ianhanniballake.contractiontimer.data;

import android.annotation.TargetApi;
import android.content.Intent;
import android.content.IntentSender;
import android.os.Build;
import android.os.Bundle;
import android.support.annotation.NonNull;
import android.support.annotation.Nullable;
import android.support.v4.app.FragmentActivity;
import android.util.Log;
import android.view.WindowManager;
import android.widget.Toast;

import com.google.android.gms.common.ConnectionResult;
import com.google.android.gms.common.GoogleApiAvailability;
import com.google.android.gms.common.api.GoogleApiClient;
import com.google.android.gms.drive.Drive;
import com.google.firebase.analytics.FirebaseAnalytics;
import com.google.firebase.crash.FirebaseCrash;
import com.ianhanniballake.contractiontimer.R;

/**
 * Abstract activity which handles authentication and connection to Google Drive via the Drive.API
 */
public abstract class AbstractDriveApiActivity extends FragmentActivity
        implements GoogleApiClient.ConnectionCallbacks, GoogleApiClient.OnConnectionFailedListener {
    private static final String TAG = AbstractDriveApiActivity.class.getSimpleName();
    private static final int REQUEST_CODE_CONNECT = 1;
    protected GoogleApiClient mGoogleApiClient;

    @Override
    protected void onCreate(final Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_drive);
        mGoogleApiClient = new GoogleApiClient.Builder(this)
                .addApi(Drive.API)
                .addScope(Drive.SCOPE_FILE)
                .addConnectionCallbacks(this)
                .addOnConnectionFailedListener(this)
                .build();
    }

    @Override
    protected void onStart() {
        super.onStart();
        mGoogleApiClient.connect();
    }

    @Override
    protected void onActivityResult(final int requestCode, final int resultCode, final Intent data) {
        super.onActivityResult(requestCode, resultCode, data);
        if (resultCode != RESULT_OK) {
            finish();
            return;
        }
        if (requestCode == REQUEST_CODE_CONNECT) {
            mGoogleApiClient.connect();
        }
    }

    @Override
    public void onConnected(@Nullable final Bundle bundle) {
        FirebaseAnalytics.getInstance(this).logEvent(FirebaseAnalytics.Event.LOGIN, null);
    }

    @Override
    public void onConnectionSuspended(final int cause) {
        finish();
    }

    @Override
    public void onConnectionFailed(@NonNull final ConnectionResult result) {
        if (result.hasResolution()) {
            try {
                result.startResolutionForResult(this, REQUEST_CODE_CONNECT);
            } catch (IntentSender.SendIntentException e) {
                Toast.makeText(this, getString(R.string.drive_error_connect, e.getLocalizedMessage()),
                        Toast.LENGTH_LONG).show();
                FirebaseCrash.report(e);
            }
        } else if (!isFinishing() &&
                (Build.VERSION.SDK_INT < Build.VERSION_CODES.JELLY_BEAN_MR1 || !isDestroyedAlready())) {
            try {
                GoogleApiAvailability.getInstance().getErrorDialog(this, result.getErrorCode(), 0).show();
            } catch (WindowManager.BadTokenException e) {
                Log.e(TAG, "Error showing error dialog", e);
                FirebaseCrash.log("Error showing error dialog");
                FirebaseCrash.report(e);
            }
        }
    }

    @TargetApi(Build.VERSION_CODES.JELLY_BEAN_MR1)
    public boolean isDestroyedAlready() {
        return isDestroyed();
    }
}