Add double tap to zoom in ViewImageOrGifActivity. Delete MultiRedditListingActivity.

7 files changed, 50 insertions, 396 deletions

diff --git a/app/src/main/AndroidManifest.xml b/app/src/main/AndroidManifest.xml
index ca502970..a1e0577c 100644
--- a/app/src/main/AndroidManifest.xml
+++ b/app/src/main/AndroidManifest.xml
@@ -90,11 +90,6 @@
             android:parentActivityName=".Activity.MainActivity"
             android:theme="@style/AppTheme.Slidable" />
         <activity
-            android:name=".Activity.MultiRedditListingActivity"
-            android:label="@string/multi_reddit_listing_activity_label"
-            android:parentActivityName=".Activity.MainActivity"
-            android:theme="@style/AppTheme.Slidable" />
-        <activity
             android:name=".Activity.AccountSavedThingActivity"
             android:label="@string/account_saved_thing_activity_label"
             android:parentActivityName=".Activity.MainActivity"
diff --git a/app/src/main/java/ml/docilealligator/infinityforreddit/Activity/MainActivity.java b/app/src/main/java/ml/docilealligator/infinityforreddit/Activity/MainActivity.java
index 4b488bfa..bc15b896 100644
--- a/app/src/main/java/ml/docilealligator/infinityforreddit/Activity/MainActivity.java
+++ b/app/src/main/java/ml/docilealligator/infinityforreddit/Activity/MainActivity.java
@@ -479,7 +479,8 @@ public class MainActivity extends BaseActivity implements SortTypeSelectionCallb
                         intent = new Intent(MainActivity.this, SubscribedThingListingActivity.class);
                         break;
                     case R.string.multi_reddit:
-                        intent = new Intent(MainActivity.this, MultiRedditListingActivity.class);
+                        intent = new Intent(MainActivity.this, SubscribedThingListingActivity.class);
+                        intent.putExtra(SubscribedThingListingActivity.EXTRA_SHOW_MULTIREDDITS, true);
                         break;
                     case R.string.inbox:
                         intent = new Intent(MainActivity.this, InboxActivity.class);
diff --git a/app/src/main/java/ml/docilealligator/infinityforreddit/Activity/MultiRedditListingActivity.java b/app/src/main/java/ml/docilealligator/infinityforreddit/Activity/MultiRedditListingActivity.java
deleted file mode 100644
index 83b34001..00000000
--- a/app/src/main/java/ml/docilealligator/infinityforreddit/Activity/MultiRedditListingActivity.java
+++ /dev/null
@@ -1,302 +0,0 @@
-package ml.docilealligator.infinityforreddit.Activity;
-
-import android.content.Intent;
-import android.content.SharedPreferences;
-import android.os.Build;
-import android.os.Bundle;
-import android.view.MenuItem;
-import android.view.View;
-import android.view.Window;
-import android.view.WindowManager;
-import android.widget.ImageView;
-import android.widget.LinearLayout;
-import android.widget.TextView;
-import android.widget.Toast;
-
-import androidx.annotation.NonNull;
-import androidx.appcompat.widget.Toolbar;
-import androidx.coordinatorlayout.widget.CoordinatorLayout;
-import androidx.lifecycle.ViewModelProvider;
-import androidx.recyclerview.widget.LinearLayoutManager;
-import androidx.recyclerview.widget.RecyclerView;
-import androidx.swiperefreshlayout.widget.SwipeRefreshLayout;
-
-import com.bumptech.glide.Glide;
-import com.bumptech.glide.RequestManager;
-import com.google.android.material.appbar.AppBarLayout;
-import com.google.android.material.dialog.MaterialAlertDialogBuilder;
-import com.google.android.material.floatingactionbutton.FloatingActionButton;
-import com.r0adkll.slidr.Slidr;
-
-import java.util.ArrayList;
-
-import javax.inject.Inject;
-import javax.inject.Named;
-
-import butterknife.BindView;
-import butterknife.ButterKnife;
-import me.zhanghai.android.fastscroll.FastScrollerBuilder;
-import ml.docilealligator.infinityforreddit.Adapter.MultiRedditListingRecyclerViewAdapter;
-import ml.docilealligator.infinityforreddit.AsyncTask.GetCurrentAccountAsyncTask;
-import ml.docilealligator.infinityforreddit.AsyncTask.InsertMultiRedditAsyncTask;
-import ml.docilealligator.infinityforreddit.CustomTheme.CustomThemeWrapper;
-import ml.docilealligator.infinityforreddit.Infinity;
-import ml.docilealligator.infinityforreddit.MultiReddit.DeleteMultiReddit;
-import ml.docilealligator.infinityforreddit.MultiReddit.FetchMyMultiReddits;
-import ml.docilealligator.infinityforreddit.MultiReddit.MultiReddit;
-import ml.docilealligator.infinityforreddit.MultiReddit.MultiRedditViewModel;
-import ml.docilealligator.infinityforreddit.R;
-import ml.docilealligator.infinityforreddit.RedditDataRoomDatabase;
-import ml.docilealligator.infinityforreddit.Utils.SharedPreferencesUtils;
-import retrofit2.Retrofit;
-
-public class MultiRedditListingActivity extends BaseActivity {
-
-    private static final String INSERT_MULTI_REDDIT_STATE = "ISSS";
-    private static final String NULL_ACCESS_TOKEN_STATE = "NATS";
-    private static final String ACCESS_TOKEN_STATE = "ATS";
-    private static final String ACCOUNT_NAME_STATE = "ANS";
-
-    @BindView(R.id.coordinator_layout_multi_reddit_listing_activity)
-    CoordinatorLayout mCoordinatorLayout;
-    @BindView(R.id.appbar_layout_multi_reddit_listing_activity)
-    AppBarLayout mAppBarLayout;
-    @BindView(R.id.toolbar_multi_reddit_listing_activity)
-    Toolbar mToolbar;
-    @BindView(R.id.swipe_refresh_layout_multi_reddit_listing_activity)
-    SwipeRefreshLayout mSwipeRefreshLayout;
-    @BindView(R.id.recycler_view_multi_reddit_listing_activity)
-    RecyclerView mRecyclerView;
-    @BindView(R.id.fetch_multi_reddit_listing_info_linear_layout_multi_reddit_listing_activity)
-    LinearLayout mErrorLinearLayout;
-    @BindView(R.id.fetch_multi_reddit_listing_info_image_view_multi_reddit_listing_activity)
-    ImageView mErrorImageView;
-    @BindView(R.id.fetch_multi_reddit_listing_info_text_view_multi_reddit_listing_activity)
-    TextView mErrorTextView;
-    @BindView(R.id.fab_multi_reddit_listing_activity)
-    FloatingActionButton fab;
-    @Inject
-    RedditDataRoomDatabase mRedditDataRoomDatabase;
-    @Inject
-    @Named("default")
-    SharedPreferences mSharedPreferences;
-    @Inject
-    @Named("oauth")
-    Retrofit mOauthRetrofit;
-    @Inject
-    CustomThemeWrapper mCustomThemeWrapper;
-
-    MultiRedditViewModel mMultiRedditViewModel;
-    private RequestManager mGlide;
-
-    private boolean mNullAccessToken = false;
-    private String mAccessToken;
-    private String mAccountName;
-    private boolean mInsertSuccess = false;
-
-    @Override
-    protected void onCreate(Bundle savedInstanceState) {
-        ((Infinity) getApplication()).getAppComponent().inject(this);
-        super.onCreate(savedInstanceState);
-        setContentView(R.layout.activity_multi_reddit_listing);
-
-        ButterKnife.bind(this);
-
-        applyCustomTheme();
-
-        if (mSharedPreferences.getBoolean(SharedPreferencesUtils.SWIPE_RIGHT_TO_GO_BACK_FROM_POST_DETAIL, true)) {
-            Slidr.attach(this);
-        }
-
-        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
-            Window window = getWindow();
-
-            if (isChangeStatusBarIconColor()) {
-                addOnOffsetChangedListener(mAppBarLayout);
-            }
-
-            if (isImmersiveInterface()) {
-                window.setFlags(WindowManager.LayoutParams.FLAG_LAYOUT_NO_LIMITS, WindowManager.LayoutParams.FLAG_LAYOUT_NO_LIMITS);
-                adjustToolbar(mToolbar);
-
-                int navBarHeight = getNavBarHeight();
-                if (navBarHeight > 0) {
-                    mRecyclerView.setPadding(0, 0, 0, navBarHeight);
-                }
-            }
-        }
-
-        setSupportActionBar(mToolbar);
-        getSupportActionBar().setDisplayHomeAsUpEnabled(true);
-
-        mSwipeRefreshLayout.setOnRefreshListener(this::loadMultiReddits);
-
-        if (savedInstanceState != null) {
-            mInsertSuccess = savedInstanceState.getBoolean(INSERT_MULTI_REDDIT_STATE);
-            mNullAccessToken = savedInstanceState.getBoolean(NULL_ACCESS_TOKEN_STATE);
-            mAccessToken = savedInstanceState.getString(ACCESS_TOKEN_STATE);
-            mAccountName = savedInstanceState.getString(ACCOUNT_NAME_STATE);
-            if (!mNullAccessToken && mAccessToken == null) {
-                getCurrentAccountAndBindView();
-            } else {
-                bindView();
-            }
-        } else {
-            getCurrentAccountAndBindView();
-        }
-    }
-
-    private void getCurrentAccountAndBindView() {
-        new GetCurrentAccountAsyncTask(mRedditDataRoomDatabase.accountDao(), account -> {
-            if (account == null) {
-                mNullAccessToken = true;
-            } else {
-                mAccessToken = account.getAccessToken();
-                mAccountName = account.getUsername();
-            }
-            bindView();
-        }).execute();
-    }
-
-    private void bindView() {
-        loadMultiReddits();
-
-        mGlide = Glide.with(this);
-
-        fab.setOnClickListener(view -> {
-            Intent intent = new Intent(MultiRedditListingActivity.this, CreateMultiRedditActivity.class);
-            startActivity(intent);
-        });
-
-        mRecyclerView.setLayoutManager(new LinearLayoutManager(this));
-        MultiRedditListingRecyclerViewAdapter adapter = new MultiRedditListingRecyclerViewAdapter(this,
-                mOauthRetrofit, mRedditDataRoomDatabase, mCustomThemeWrapper, mAccessToken, mAccountName);
-        mRecyclerView.setAdapter(adapter);
-        mRecyclerView.addOnScrollListener(new RecyclerView.OnScrollListener() {
-            @Override
-            public void onScrolled(@NonNull RecyclerView recyclerView, int dx, int dy) {
-                super.onScrolled(recyclerView, dx, dy);
-                if (dy > 0) {
-                    fab.hide();
-                } else {
-                    fab.show();
-                }
-            }
-        });
-        new FastScrollerBuilder(mRecyclerView).build();
-
-        mMultiRedditViewModel = new ViewModelProvider(this,
-                new MultiRedditViewModel.Factory(getApplication(), mRedditDataRoomDatabase, mAccountName))
-                .get(MultiRedditViewModel.class);
-
-        mMultiRedditViewModel.getAllMultiReddits().observe(this, subscribedUserData -> {
-            if (subscribedUserData == null || subscribedUserData.size() == 0) {
-                mRecyclerView.setVisibility(View.GONE);
-                mErrorLinearLayout.setVisibility(View.VISIBLE);
-                mGlide.load(R.drawable.error_image).into(mErrorImageView);
-            } else {
-                mErrorLinearLayout.setVisibility(View.GONE);
-                mRecyclerView.setVisibility(View.VISIBLE);
-                mGlide.clear(mErrorImageView);
-            }
-            adapter.setMultiReddits(subscribedUserData);
-        });
-
-        mMultiRedditViewModel.getAllFavoriteMultiReddits().observe(this, favoriteSubscribedUserData -> {
-            if (favoriteSubscribedUserData != null && favoriteSubscribedUserData.size() > 0) {
-                mErrorLinearLayout.setVisibility(View.GONE);
-                mRecyclerView.setVisibility(View.VISIBLE);
-                mGlide.clear(mErrorImageView);
-            }
-            adapter.setFavoriteMultiReddits(favoriteSubscribedUserData);
-        });
-    }
-
-    private void loadMultiReddits() {
-        mSwipeRefreshLayout.setRefreshing(true);
-        FetchMyMultiReddits.fetchMyMultiReddits(mOauthRetrofit, mAccessToken, new FetchMyMultiReddits.FetchMyMultiRedditsListener() {
-            @Override
-            public void success(ArrayList<MultiReddit> multiReddits) {
-                new InsertMultiRedditAsyncTask(mRedditDataRoomDatabase, multiReddits, mAccountName, () -> {
-                    mInsertSuccess = true;
-                    mSwipeRefreshLayout.setRefreshing(false);
-                }).execute();
-            }
-
-            @Override
-            public void failed() {
-                mInsertSuccess = false;
-                mSwipeRefreshLayout.setRefreshing(false);
-                Toast.makeText(MultiRedditListingActivity.this, R.string.error_loading_multi_reddit_list, Toast.LENGTH_SHORT).show();
-            }
-        });
-    }
-
-    @Override
-    public boolean onOptionsItemSelected(@NonNull MenuItem item) {
-        if (item.getItemId() == android.R.id.home) {
-            finish();
-            return true;
-        }
-
-        return false;
-    }
-
-    @Override
-    protected void onSaveInstanceState(@NonNull Bundle outState) {
-        super.onSaveInstanceState(outState);
-        outState.putBoolean(INSERT_MULTI_REDDIT_STATE, mInsertSuccess);
-        outState.putBoolean(NULL_ACCESS_TOKEN_STATE, mNullAccessToken);
-        outState.putString(ACCESS_TOKEN_STATE, mAccessToken);
-        outState.putString(ACCOUNT_NAME_STATE, mAccountName);
-    }
-
-    @Override
-    public SharedPreferences getDefaultSharedPreferences() {
-        return mSharedPreferences;
-    }
-
-    @Override
-    protected CustomThemeWrapper getCustomThemeWrapper() {
-        return mCustomThemeWrapper;
-    }
-
-    @Override
-    protected void applyCustomTheme() {
-        mCoordinatorLayout.setBackgroundColor(mCustomThemeWrapper.getBackgroundColor());
-        applyAppBarLayoutAndToolbarTheme(mAppBarLayout, mToolbar);
-        mSwipeRefreshLayout.setProgressBackgroundColorSchemeColor(mCustomThemeWrapper.getCircularProgressBarBackground());
-        mSwipeRefreshLayout.setColorSchemeColors(mCustomThemeWrapper.getColorAccent());
-        mErrorTextView.setTextColor(mCustomThemeWrapper.getSecondaryTextColor());
-        applyFABTheme(fab);
-    }
-
-    public void deleteMultiReddit(MultiReddit multiReddit) {
-        new MaterialAlertDialogBuilder(this, R.style.MaterialAlertDialogTheme)
-                .setTitle(R.string.delete)
-                .setMessage(R.string.delete_multi_reddit_dialog_message)
-                .setPositiveButton(R.string.delete, (dialogInterface, i)
-                        -> DeleteMultiReddit.deleteMultiReddit(mOauthRetrofit, mRedditDataRoomDatabase,
-                                mAccessToken, mAccountName, multiReddit.getPath(), new DeleteMultiReddit.DeleteMultiRedditListener() {
-                                    @Override
-                                    public void success() {
-                                        Toast.makeText(MultiRedditListingActivity.this,
-                                                R.string.delete_multi_reddit_success, Toast.LENGTH_SHORT).show();
-                                        loadMultiReddits();
-                                    }
-
-                                    @Override
-                                    public void failed() {
-                                        Toast.makeText(MultiRedditListingActivity.this,
-                                                R.string.delete_multi_reddit_failed, Toast.LENGTH_SHORT).show();
-                                    }
-                                }))
-                .setNegativeButton(R.string.cancel, null)
-                .show();
-    }
-
-    /*@Subscribe
-    public void onRefreshMultiRedditsEvent(RefreshMultiRedditsEvent event) {
-        loadMultiReddits();
-    }*/
-}
diff --git a/app/src/main/java/ml/docilealligator/infinityforreddit/Activity/ViewImageOrGifActivity.java b/app/src/main/java/ml/docilealligator/infinityforreddit/Activity/ViewImageOrGifActivity.java
index 29c123bc..2aa00850 100644
--- a/app/src/main/java/ml/docilealligator/infinityforreddit/Activity/ViewImageOrGifActivity.java
+++ b/app/src/main/java/ml/docilealligator/infinityforreddit/Activity/ViewImageOrGifActivity.java
@@ -11,6 +11,7 @@ import android.net.Uri;
 import android.os.Build;
 import android.os.Bundle;
 import android.text.Html;
+import android.util.DisplayMetrics;
 import android.view.Menu;
 import android.view.MenuItem;
 import android.view.View;
@@ -35,6 +36,7 @@ import com.bumptech.glide.request.RequestListener;
 import com.bumptech.glide.request.target.CustomTarget;
 import com.bumptech.glide.request.target.Target;
 import com.bumptech.glide.request.transition.Transition;
+import com.davemorrissey.labs.subscaleview.SubsamplingScaleImageView;
 import com.github.piasy.biv.BigImageViewer;
 import com.github.piasy.biv.loader.ImageLoader;
 import com.github.piasy.biv.loader.glide.GlideImageLoader;
@@ -152,6 +154,10 @@ public class ViewImageOrGifActivity extends AppCompatActivity implements SetAsWa
             setTitle("");
         }
 
+        DisplayMetrics displayMetrics = new DisplayMetrics();
+        getWindowManager().getDefaultDisplay().getMetrics(displayMetrics);
+        int windowHeight = displayMetrics.heightPixels;
+
         mHaulerView.setOnDragDismissedListener(dragDirection -> {
             int slide = dragDirection == DragDirection.UP ? R.anim.slide_out_up : R.anim.slide_out_down;
             finish();
@@ -214,6 +220,46 @@ public class ViewImageOrGifActivity extends AppCompatActivity implements SetAsWa
             @Override
             public void onSuccess(File image) {
                 mProgressBar.setVisibility(View.GONE);
+
+                final SubsamplingScaleImageView view = mImageView.getSSIV();
+
+                if (view != null) {
+                    view.setMinimumDpi(80);
+
+                    view.setOnImageEventListener(new SubsamplingScaleImageView.OnImageEventListener() {
+                        @Override
+                        public void onReady() {
+
+                        }
+
+                        @Override
+                        public void onImageLoaded() {
+                            view.setDoubleTapZoomDpi(70);
+                            view.setDoubleTapZoomStyle(SubsamplingScaleImageView.ZOOM_FOCUS_FIXED);
+                            view.setQuickScaleEnabled(false);
+                        }
+
+                        @Override
+                        public void onPreviewLoadError(Exception e) {
+
+                        }
+
+                        @Override
+                        public void onImageLoadError(Exception e) {
+
+                        }
+
+                        @Override
+                        public void onTileLoadError(Exception e) {
+
+                        }
+
+                        @Override
+                        public void onPreviewReleased() {
+
+                        }
+                    });
+                }
             }
 
             @Override
diff --git a/app/src/main/java/ml/docilealligator/infinityforreddit/AppComponent.java b/app/src/main/java/ml/docilealligator/infinityforreddit/AppComponent.java
index d3c471cf..cd75c469 100644
--- a/app/src/main/java/ml/docilealligator/infinityforreddit/AppComponent.java
+++ b/app/src/main/java/ml/docilealligator/infinityforreddit/AppComponent.java
@@ -16,7 +16,6 @@ import ml.docilealligator.infinityforreddit.Activity.FilteredThingActivity;
 import ml.docilealligator.infinityforreddit.Activity.LinkResolverActivity;
 import ml.docilealligator.infinityforreddit.Activity.LoginActivity;
 import ml.docilealligator.infinityforreddit.Activity.MainActivity;
-import ml.docilealligator.infinityforreddit.Activity.MultiRedditListingActivity;
 import ml.docilealligator.infinityforreddit.Activity.PostImageActivity;
 import ml.docilealligator.infinityforreddit.Activity.PostLinkActivity;
 import ml.docilealligator.infinityforreddit.Activity.PostTextActivity;
@@ -138,8 +137,6 @@ public interface AppComponent {
 
     void inject(ViewImageOrGifActivity viewGIFActivity);
 
-    void inject(MultiRedditListingActivity multiRedditListingActivity);
-
     void inject(ViewMultiRedditDetailActivity viewMultiRedditDetailActivity);
 
     void inject(ViewVideoActivity viewVideoActivity);
diff --git a/app/src/main/res/layout/activity_multi_reddit_listing.xml b/app/src/main/res/layout/activity_multi_reddit_listing.xml
deleted file mode 100644
index a7c69f72..00000000
--- a/app/src/main/res/layout/activity_multi_reddit_listing.xml
+++ /dev/null
@@ -1,84 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<androidx.coordinatorlayout.widget.CoordinatorLayout xmlns:android="http://schemas.android.com/apk/res/android"
-    xmlns:app="http://schemas.android.com/apk/res-auto"
-    xmlns:tools="http://schemas.android.com/tools"
-    android:layout_width="match_parent"
-    android:layout_height="match_parent"
-    android:id="@+id/coordinator_layout_multi_reddit_listing_activity"
-    tools:context=".Activity.MultiRedditListingActivity">
-
-    <com.google.android.material.appbar.AppBarLayout
-        android:id="@+id/appbar_layout_multi_reddit_listing_activity"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:theme="@style/AppTheme.AppBarOverlay">
-
-        <com.google.android.material.appbar.CollapsingToolbarLayout
-            android:layout_width="match_parent"
-            android:layout_height="match_parent"
-            app:layout_scrollFlags="scroll|enterAlways"
-            app:titleEnabled="false"
-            app:toolbarId="@+id/toolbar_multi_reddit_listing_activity">
-
-            <androidx.appcompat.widget.Toolbar
-                android:id="@+id/toolbar_multi_reddit_listing_activity"
-                android:layout_width="match_parent"
-                android:layout_height="wrap_content"
-                android:minHeight="?attr/actionBarSize"
-                app:popupTheme="@style/AppTheme.PopupOverlay"
-                app:navigationIcon="?attr/homeAsUpIndicator" />
-
-        </com.google.android.material.appbar.CollapsingToolbarLayout>
-
-    </com.google.android.material.appbar.AppBarLayout>
-
-    <androidx.swiperefreshlayout.widget.SwipeRefreshLayout
-        android:id="@+id/swipe_refresh_layout_multi_reddit_listing_activity"
-        android:layout_width="match_parent"
-        android:layout_height="match_parent"
-        app:layout_behavior="@string/appbar_scrolling_view_behavior">
-
-        <androidx.recyclerview.widget.RecyclerView
-            android:id="@+id/recycler_view_multi_reddit_listing_activity"
-            android:layout_width="match_parent"
-            android:layout_height="match_parent" />
-
-    </androidx.swiperefreshlayout.widget.SwipeRefreshLayout>
-
-    <LinearLayout
-        android:id="@+id/fetch_multi_reddit_listing_info_linear_layout_multi_reddit_listing_activity"
-        android:layout_width="match_parent"
-        android:layout_height="match_parent"
-        android:layout_marginBottom="48dp"
-        android:gravity="center"
-        android:orientation="vertical"
-        android:visibility="gone"
-        app:layout_behavior="@string/appbar_scrolling_view_behavior">
-
-        <ImageView
-            android:id="@+id/fetch_multi_reddit_listing_info_image_view_multi_reddit_listing_activity"
-            android:layout_width="150dp"
-            android:layout_height="wrap_content" />
-
-        <TextView
-            android:id="@+id/fetch_multi_reddit_listing_info_text_view_multi_reddit_listing_activity"
-            android:layout_width="wrap_content"
-            android:layout_height="wrap_content"
-            android:layout_marginTop="16dp"
-            android:gravity="center"
-            android:text="@string/no_multi_reddits"
-            android:textSize="?attr/font_default"
-            android:fontFamily="?attr/font_family" />
-
-    </LinearLayout>
-
-    <com.google.android.material.floatingactionbutton.FloatingActionButton
-        android:id="@+id/fab_multi_reddit_listing_activity"
-        android:layout_width="wrap_content"
-        android:layout_height="wrap_content"
-        android:layout_margin="@dimen/fab_margin"
-        android:layout_gravity="bottom|end"
-        app:srcCompat="@drawable/ic_add_day_night_24dp"
-        app:tint="@android:color/white" />
-
-</androidx.coordinatorlayout.widget.CoordinatorLayout>
\ No newline at end of file
diff --git a/app/src/main/res/layout/activity_view_image_or_gif.xml b/app/src/main/res/layout/activity_view_image_or_gif.xml
index 35cdb0b6..250c5077 100644
--- a/app/src/main/res/layout/activity_view_image_or_gif.xml
+++ b/app/src/main/res/layout/activity_view_image_or_gif.xml
@@ -28,7 +28,8 @@
                 android:layout_width="match_parent"
                 android:layout_height="match_parent"
                 app:optimizeDisplay="true"
-                app:tapToRetry="false" />
+                app:tapToRetry="false"
+                app:initScaleType="centerInside" />
 
             <LinearLayout
                 android:id="@+id/load_image_error_linear_layout_view_image_or_gif_activity"