AbstractSimpleActivity.java

package com.stxnext.management.android.ui;

import android.app.Activity;
import android.app.AlertDialog.Builder;
import android.app.Dialog;
import android.content.DialogInterface;
import android.content.DialogInterface.OnCancelListener;
import android.content.Intent;
import android.net.Uri;
import android.os.Bundle;
import android.support.v4.app.FragmentActivity;
import android.view.ViewGroup;
import android.view.animation.AlphaAnimation;
import android.view.animation.Animation;
import android.view.animation.AnimationSet;
import android.view.animation.DecelerateInterpolator;
import android.view.animation.LayoutAnimationController;

import com.actionbarsherlock.app.SherlockActivity;
import com.google.android.gms.common.ConnectionResult;
import com.google.android.gms.common.GooglePlayServicesUtil;
import com.stxnext.management.android.R;
import com.stxnext.management.android.dependencies.googleplay.GooglePlayServiceErrorMessages;
import com.stxnext.management.android.storage.prefs.StoragePrefs;
import com.stxnext.management.android.web.api.IntranetApi;

public abstract class AbstractSimpleActivity extends SherlockActivity {
    // common tools
    protected StoragePrefs prefs;
    protected IntranetApi api;

    // required methods
    protected abstract void fillViews();

    protected abstract void setActions();

    protected abstract int getContentResourceId();

    // the rest

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        applyWindowSettings();
        prefs = StoragePrefs.getInstance(this);
        api = IntranetApi.getInstance(getApplication());
        setContentView(getContentResourceId());
        fillViews();
        setActions();
    }

    protected void applyWindowSettings() {

    }

    protected boolean isUserSignedIn() {
        return api.isUserSignedIn();
    }

    protected boolean servicesConnected() {

        // Check that Google Play services is available
        int resultCode =
                GooglePlayServicesUtil.isGooglePlayServicesAvailable(this);

        // If Google Play services is available
        if (ConnectionResult.SUCCESS == resultCode) {
            // In debug mode, log the status

            // Continue
            return true;
            // Google Play services was not available for some reason
        } else {
            showErrorDialog(resultCode);
            return false;
        }
    }

    protected void displayDialogBox(String title, String message, final Runnable onOkClicked) {
        Builder builder = new android.app.AlertDialog.Builder(this)
                .setTitle(title)
                .setMessage(message)
                .setNegativeButton(getString(R.string.common_no), new DialogInterface.OnClickListener() {
                    public void onClick(DialogInterface dialog, int which) {
                        dialog.dismiss();
                    }
                }).setPositiveButton(getString(R.string.common_yes), new DialogInterface.OnClickListener() {
                    public void onClick(DialogInterface dialog, int which) {
                        onOkClicked.run();
                    }
                });
        builder.setOnCancelListener(cancelListener);
        builder.show();
    }

    private void showErrorDialog(int errorCode) {

        // Get the error dialog from Google Play services
        Dialog errorDialog = GooglePlayServicesUtil.getErrorDialog(
                errorCode,
                this,
                GooglePlayServiceErrorMessages.CONNECTION_FAILURE_RESOLUTION_REQUEST);

        if (errorDialog != null) {
            errorDialog.setOnCancelListener(cancelListener);
            errorDialog.show();
        }
        else {
            Builder builder = new android.app.AlertDialog.Builder(this)
                    .setTitle("Update Google Play")
                    .setMessage(GooglePlayServiceErrorMessages.getErrorString(this, errorCode))
                    .setNegativeButton("Update", new DialogInterface.OnClickListener() {
                        public void onClick(DialogInterface dialog, int which) {
                            startActivity(new Intent(Intent.ACTION_VIEW, Uri
                                    .parse("http://play.google.com/store/apps/details?id="
                                            + GooglePlayServicesUtil.GOOGLE_PLAY_SERVICES_PACKAGE)));
                            finish();
                        }
                    });
            builder.setOnCancelListener(cancelListener);
            builder.show();
            // .show();
        }
    }

    private OnCancelListener cancelListener = new OnCancelListener() {
        @Override
        public void onCancel(DialogInterface dialog) {
            dialog.dismiss();
        }
    };

    protected void applyListAnimation(ViewGroup view) {
        AnimationSet set = new AnimationSet(true);

        Animation animation = new AlphaAnimation(0.0f, 1.0f);
        animation.setDuration(350);
        set.addAnimation(animation);
        animation = new AlphaAnimation(0.1f, 1.1f);
        animation.setDuration(80);
        animation.setInterpolator(new DecelerateInterpolator());
        set.addAnimation(animation);

        LayoutAnimationController controller = new LayoutAnimationController(set, 0.1f);
        view.setLayoutAnimation(controller);
    }

}