ActivityHelper.java

package com.fastaccess.helper;

import android.Manifest;
import android.app.Activity;
import android.content.ActivityNotFoundException;
import android.content.Context;
import android.content.ContextWrapper;
import android.content.Intent;
import android.content.pm.ActivityInfo;
import android.content.pm.PackageManager;
import android.content.pm.ResolveInfo;
import android.content.res.ColorStateList;
import android.graphics.Rect;
import android.net.Uri;
import android.support.annotation.NonNull;
import android.support.annotation.Nullable;
import android.support.customtabs.CustomTabsIntent;
import android.support.v4.app.ActivityCompat;
import android.support.v4.app.ActivityOptionsCompat;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentManager;
import android.support.v4.app.ShareCompat;
import android.support.v4.util.Pair;
import android.view.Gravity;
import android.view.View;
import android.view.ViewGroup;
import android.view.Window;
import android.widget.Button;
import android.widget.LinearLayout.LayoutParams;
import android.widget.RelativeLayout;
import android.widget.Toast;

import com.fastaccess.R;

import java.util.ArrayList;
import java.util.List;

import es.dmoral.toasty.Toasty;

/**
 * Created by Kosh on 12/12/15 10:51 PM
 */
public class ActivityHelper {

    private static int BUTTON_ID = 32;

    @Nullable public static Activity getActivity(@Nullable Context content) {
        if (content == null) return null;
        else if (content instanceof Activity) return (Activity) content;
        else if (content instanceof ContextWrapper) return getActivity(((ContextWrapper) content).getBaseContext());
        return null;
    }

    public static void login(@NonNull Activity activity, @NonNull Uri url) {
        try {
            Uri uri = Uri.parse("googlechrome://navigate?url=" + url);
            Intent i = new Intent(Intent.ACTION_VIEW, uri);
            i.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
            activity.startActivity(i);
        } catch (ActivityNotFoundException e) {
            Toasty.info(activity, "Chrome is required to login").show();
            e.printStackTrace();
        }
    }

    public static void startCustomTab(@NonNull Activity context, @NonNull Uri url) {
        String packageNameToUse = CustomTabsHelper.getPackageNameToUse(context);
        if (packageNameToUse != null) {
            CustomTabsIntent customTabsIntent = new CustomTabsIntent.Builder()
                    .setToolbarColor(ViewHelper.getPrimaryColor(context))
                    .setShowTitle(true)
                    .build();
            customTabsIntent.intent.setPackage(packageNameToUse);
            customTabsIntent.launchUrl(context, url);
        } else {
            openChooser(context, url, true);
        }
    }

    public static void startCustomTab(@NonNull Activity context, @NonNull String url) {
        startCustomTab(context, Uri.parse(url));
    }

    public static void openChooser(@NonNull Context context, @NonNull Uri url) {
        openChooser(context, url, false);
    }

    private static void openChooser(@NonNull Context context, @NonNull Uri url, boolean fromCustomTab) {
        Intent i = new Intent(Intent.ACTION_VIEW, url);
        i.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
        Intent finalIntent = chooserIntent(context, i, url);
        if (finalIntent != null) {
            try {
                context.startActivity(finalIntent);
            } catch (ActivityNotFoundException ignored) {}
        } else {
            if (!fromCustomTab) {
                Activity activity = ActivityHelper.getActivity(context);
                if (activity == null) {
                    try {
                        context.startActivity(i);
                    } catch (ActivityNotFoundException ignored) {}
                    return;
                }
                startCustomTab(activity, url);
            } else {
                try {
                    context.startActivity(i);
                } catch (ActivityNotFoundException ignored) {}
            }
        }
    }

    public static void openChooser(@NonNull Context context, @NonNull String url) {
        openChooser(context, Uri.parse(url));
    }

    @SafeVarargs public static void start(@NonNull Activity activity, Class cl, Pair<View, String>... sharedElements) {
        Intent intent = new Intent(activity, cl);
        ActivityOptionsCompat options = ActivityOptionsCompat.makeSceneTransitionAnimation(activity, sharedElements);
        activity.startActivity(intent, options.toBundle());
    }

    public static void start(@NonNull Activity activity, Intent intent, @NonNull View sharedElement) {
        ActivityOptionsCompat options = ActivityOptionsCompat.makeSceneTransitionAnimation(activity,
                sharedElement, ViewHelper.getTransitionName(sharedElement));
        activity.startActivity(intent, options.toBundle());
    }

    public static void startReveal(@NonNull Activity activity, Intent intent, @NonNull View sharedElement, int requestCode) {
        ActivityOptionsCompat options = ActivityOptionsCompat.makeClipRevealAnimation(sharedElement, sharedElement.getWidth() / 2,
                sharedElement.getHeight() / 2,
                sharedElement.getWidth(), sharedElement.getHeight());
        activity.startActivityForResult(intent, requestCode, options.toBundle());
    }

    public static void startReveal(@NonNull Fragment fragment, Intent intent, @NonNull View sharedElement, int requestCode) {
        ActivityOptionsCompat options = ActivityOptionsCompat.makeClipRevealAnimation(sharedElement, sharedElement.getWidth() / 2,
                sharedElement.getHeight() / 2,
                sharedElement.getWidth(), sharedElement.getHeight());
        fragment.startActivityForResult(intent, requestCode, options.toBundle());
    }

    public static void startReveal(@NonNull Activity activity, Intent intent, @NonNull View sharedElement) {
        ActivityOptionsCompat options = ActivityOptionsCompat.makeClipRevealAnimation(sharedElement, sharedElement.getWidth() / 2,
                sharedElement.getHeight() / 2,
                sharedElement.getWidth(), sharedElement.getHeight());
        activity.startActivity(intent, options.toBundle());
    }

    @SafeVarargs public static void start(@NonNull Activity activity, @NonNull Intent intent, @NonNull Pair<View, String>... sharedElements) {
        ActivityOptionsCompat options = ActivityOptionsCompat.makeSceneTransitionAnimation(activity, sharedElements);
        activity.startActivity(intent, options.toBundle());

    }

    public static void shareUrl(@NonNull Context context, @NonNull String url) {
        Activity activity = getActivity(context);
        if (activity == null) throw new IllegalArgumentException("Context given is not an instance of activity " + context.getClass().getName());
        try {
            ShareCompat.IntentBuilder.from(activity)
                    .setChooserTitle(context.getString(R.string.share))
                    .setType("text/*")
                    .setText(url)
                    .startChooser();
        } catch (ActivityNotFoundException e) {
            Toasty.error(context, e.getMessage(), Toast.LENGTH_LONG).show();
        }
    }

    @SuppressWarnings("RestrictedApi")
    @Nullable public static Fragment getVisibleFragment(@NonNull FragmentManager manager) {
        List<Fragment> fragments = manager.getFragments();
        if (fragments != null && !fragments.isEmpty()) {
            for (Fragment fragment : fragments) {
                if (fragment != null && fragment.isVisible()) {
                    return fragment;
                }
            }
        }
        return null;
    }

    private static boolean isPermissionGranted(@NonNull Context context, @NonNull String permission) {
        return ActivityCompat.checkSelfPermission(context, permission) == PackageManager.PERMISSION_GRANTED;
    }

    private static boolean isExplanationNeeded(@NonNull Activity context, @NonNull String permissionName) {
        return ActivityCompat.shouldShowRequestPermissionRationale(context, permissionName);
    }

    private static boolean isReadWritePermissionIsGranted(@NonNull Context context) {
        return isPermissionGranted(context, Manifest.permission.READ_EXTERNAL_STORAGE)
                && isPermissionGranted(context, Manifest.permission.WRITE_EXTERNAL_STORAGE);
    }

    private static void requestReadWritePermission(@NonNull Activity context) {
        ActivityCompat.requestPermissions(context, new String[]{
                Manifest.permission.READ_EXTERNAL_STORAGE,
                Manifest.permission.WRITE_EXTERNAL_STORAGE,
        }, 1);
    }

    public static boolean checkAndRequestReadWritePermission(@NonNull Activity activity) {
        if (!isReadWritePermissionIsGranted(activity)) {
            requestReadWritePermission(activity);
            return false;
        } else if (isExplanationNeeded(activity, Manifest.permission.READ_EXTERNAL_STORAGE)
                || isExplanationNeeded(activity, Manifest.permission.WRITE_EXTERNAL_STORAGE)) {
            Toasty.error(activity, activity.getString(R.string.read_write_permission_explanation), Toast.LENGTH_LONG).show();
            return false;
        }
        return true;
    }

    private static Intent chooserIntent(@NonNull Context context, @NonNull Intent intent, @NonNull Uri uri) {
        final PackageManager pm = context.getPackageManager();
        final List<ResolveInfo> activities = pm.queryIntentActivities(intent, PackageManager.MATCH_DEFAULT_ONLY);
        final ArrayList<Intent> chooserIntents = new ArrayList<>();
        final String ourPackageName = context.getPackageName();
        for (ResolveInfo resInfo : activities) {
            ActivityInfo info = resInfo.activityInfo;
            if (!info.enabled || !info.exported) {
                continue;
            }
            if (info.packageName.equals(ourPackageName)) {
                continue;
            }
            Intent targetIntent = new Intent(intent);
            targetIntent.setPackage(info.packageName);
            targetIntent.setDataAndType(uri, intent.getType());
            chooserIntents.add(targetIntent);
        }
        if (chooserIntents.isEmpty()) {
            return null;
        }
        final Intent lastIntent = chooserIntents.remove(chooserIntents.size() - 1);
        if (chooserIntents.isEmpty()) {
            return lastIntent;
        }
        Intent chooserIntent = Intent.createChooser(lastIntent, null);
        chooserIntent.putExtra(Intent.EXTRA_INITIAL_INTENTS, chooserIntents.toArray(new Intent[chooserIntents.size()]));
        return chooserIntent;
    }

    public static void showDismissHints(@NonNull Context context, @NonNull Runnable runnable) {
        Activity activity = getActivity(context);
        if (activity == null) return;
        LayoutParams params = new LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT);
        params.weight = 1;
        params.gravity = Gravity.START;
        int margin = (int) context.getResources().getDimension(R.dimen.spacing_normal);
        params.setMargins(margin, margin, margin, margin);
        Button button = new Button(context);
        button.setLayoutParams(params);
        button.setText(context.getResources().getString(R.string.dismiss_all));
        button.setTextColor(context.getResources().getColor(R.color.material_grey_200));
        button.setBackgroundTintList(ColorStateList.valueOf(context.getResources().getColor(R.color.material_red_accent_700)));
        button.setAllCaps(true);
        button.setOnClickListener(v -> {
            PrefGetter.isCommentHintShowed();
            PrefGetter.isEditorHintShowed();
            PrefGetter.isFileOptionHintShow();
            PrefGetter.isHomeButoonHintShowed();
            PrefGetter.isNavDrawerHintShowed();
            PrefGetter.isReleaseHintShow();
            PrefGetter.isRepoFabHintShowed();
            PrefGetter.isRepoGuideShowed();
            runnable.run();
            ActivityHelper.hideDismissHints(context);
        });
        ViewGroup parentView = (ViewGroup) activity.getWindow().getDecorView();
        RelativeLayout relativeLayout = new RelativeLayout(context);
        relativeLayout.setId(BUTTON_ID);
        relativeLayout.setLayoutParams(
                new RelativeLayout.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.MATCH_PARENT));
        relativeLayout.setPadding(0, getNotificationBarHeight(context), 0, 0);

        relativeLayout.addView(button);
        parentView.addView(relativeLayout);
    }

    public static void hideDismissHints(@NonNull Context context) {
        Activity activity = getActivity(context);
        if (activity == null) return;
        ViewGroup parentView = (ViewGroup) activity.getWindow().getDecorView();
        View button = parentView.findViewById(BUTTON_ID);
        if (button != null)
            parentView.removeView(button);
    }

    public static void bringDismissAllToFront(@NonNull Context context) {
        Activity activity = getActivity(context);
        if (activity == null) return;
        ViewGroup parentView = (ViewGroup) activity.getWindow().getDecorView();
        View button = parentView.findViewById(BUTTON_ID);
        if (button != null)
            button.bringToFront();
    }

    private static int getNotificationBarHeight(@NonNull Context context) {
        Rect rectangle = new Rect();
        Activity activity = getActivity(context);
        if (activity == null) return 0;
        Window window = activity.getWindow();
        window.getDecorView().getWindowVisibleDisplayFrame(rectangle);
        int statusBarHeight = rectangle.top;
        int contentViewTop = window.findViewById(Window.ID_ANDROID_CONTENT).getTop();

        return Math.abs(contentViewTop - statusBarHeight);
    }

}