Set image as wallpaper.

18 files changed, 463 insertions, 12 deletions

diff --git a/app/src/main/AndroidManifest.xml b/app/src/main/AndroidManifest.xml
index 2a2a74bd..ff60bc3f 100644
--- a/app/src/main/AndroidManifest.xml
+++ b/app/src/main/AndroidManifest.xml
@@ -4,6 +4,8 @@
     package="ml.docilealligator.infinityforreddit">
 
     <uses-permission android:name="android.permission.INTERNET" />
+    <uses-permission android:name="android.permission.SET_WALLPAPER" />
+    <uses-permission android:name="android.permission.SET_WALLPAPER_HINTS" />
     <uses-permission
         android:name="android.permission.WRITE_EXTERNAL_STORAGE"
         android:maxSdkVersion="22" />
diff --git a/app/src/main/java/ml/docilealligator/infinityforreddit/Activity/ViewGIFActivity.java b/app/src/main/java/ml/docilealligator/infinityforreddit/Activity/ViewGIFActivity.java
index cafbaed4..a1802a90 100644
--- a/app/src/main/java/ml/docilealligator/infinityforreddit/Activity/ViewGIFActivity.java
+++ b/app/src/main/java/ml/docilealligator/infinityforreddit/Activity/ViewGIFActivity.java
@@ -218,7 +218,7 @@ public class ViewGIFActivity extends AppCompatActivity {
 
                 return true;
             case R.id.action_share_view_gif_activity:
-                Toast.makeText(ViewGIFActivity.this, R.string.save_gif_before_sharing, Toast.LENGTH_SHORT).show();
+                Toast.makeText(ViewGIFActivity.this, R.string.save_gif_first, Toast.LENGTH_SHORT).show();
                 glide.asGif().load(mImageUrl).listener(new RequestListener<GifDrawable>() {
                     @Override
                     public boolean onLoadFailed(@Nullable GlideException e, Object model, Target<GifDrawable> target, boolean isFirstResource) {
diff --git a/app/src/main/java/ml/docilealligator/infinityforreddit/Activity/ViewImageActivity.java b/app/src/main/java/ml/docilealligator/infinityforreddit/Activity/ViewImageActivity.java
index ea3bde7f..76acf253 100644
--- a/app/src/main/java/ml/docilealligator/infinityforreddit/Activity/ViewImageActivity.java
+++ b/app/src/main/java/ml/docilealligator/infinityforreddit/Activity/ViewImageActivity.java
@@ -2,21 +2,26 @@ package ml.docilealligator.infinityforreddit.Activity;
 
 import android.Manifest;
 import android.app.DownloadManager;
+import android.app.WallpaperManager;
 import android.content.Context;
 import android.content.Intent;
 import android.content.SharedPreferences;
 import android.content.pm.PackageManager;
 import android.graphics.Bitmap;
+import android.graphics.Rect;
 import android.graphics.drawable.ColorDrawable;
 import android.graphics.drawable.Drawable;
+import android.media.ThumbnailUtils;
 import android.net.Uri;
 import android.os.Build;
 import android.os.Bundle;
 import android.os.Environment;
 import android.text.Html;
+import android.util.DisplayMetrics;
 import android.view.Menu;
 import android.view.MenuItem;
 import android.view.View;
+import android.view.WindowManager;
 import android.widget.LinearLayout;
 import android.widget.ProgressBar;
 import android.widget.Toast;
@@ -41,6 +46,7 @@ import com.bumptech.glide.request.transition.Transition;
 import com.thefuntasty.hauler.HaulerView;
 
 import java.io.File;
+import java.io.IOException;
 
 import javax.inject.Inject;
 import javax.inject.Named;
@@ -48,6 +54,7 @@ import javax.inject.Named;
 import butterknife.BindView;
 import butterknife.ButterKnife;
 import ml.docilealligator.infinityforreddit.AsyncTask.SaveImageToFileAsyncTask;
+import ml.docilealligator.infinityforreddit.BottomSheetFragment.SetAsWallpaperBottomSheetFragment;
 import ml.docilealligator.infinityforreddit.BuildConfig;
 import ml.docilealligator.infinityforreddit.Font.ContentFontFamily;
 import ml.docilealligator.infinityforreddit.Font.ContentFontStyle;
@@ -57,9 +64,10 @@ import ml.docilealligator.infinityforreddit.Font.TitleFontFamily;
 import ml.docilealligator.infinityforreddit.Font.TitleFontStyle;
 import ml.docilealligator.infinityforreddit.Infinity;
 import ml.docilealligator.infinityforreddit.R;
+import ml.docilealligator.infinityforreddit.SetAsWallpaperCallback;
 import ml.docilealligator.infinityforreddit.Utils.SharedPreferencesUtils;
 
-public class ViewImageActivity extends AppCompatActivity {
+public class ViewImageActivity extends AppCompatActivity implements SetAsWallpaperCallback {
 
     public static final String IMAGE_URL_KEY = "IUK";
     public static final String FILE_NAME_KEY = "FNK";
@@ -224,7 +232,7 @@ public class ViewImageActivity extends AppCompatActivity {
                     @Override
                     public void onResourceReady(@NonNull Bitmap resource, @Nullable Transition<? super Bitmap> transition) {
                         if (getExternalCacheDir() != null) {
-                            Toast.makeText(ViewImageActivity.this, R.string.save_image_before_sharing, Toast.LENGTH_SHORT).show();
+                            Toast.makeText(ViewImageActivity.this, R.string.save_image_first, Toast.LENGTH_SHORT).show();
                             new SaveImageToFileAsyncTask(resource, getExternalCacheDir().getPath(), mImageFileName,
                                     new SaveImageToFileAsyncTask.SaveImageToFileAsyncTaskListener() {
                                         @Override
@@ -257,6 +265,15 @@ public class ViewImageActivity extends AppCompatActivity {
                     }
                 });
                 return true;
+
+            case R.id.action_set_wallpaper_view_image_activity:
+                if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
+                    SetAsWallpaperBottomSheetFragment setAsWallpaperBottomSheetFragment = new SetAsWallpaperBottomSheetFragment();
+                    setAsWallpaperBottomSheetFragment.show(getSupportFragmentManager(), setAsWallpaperBottomSheetFragment.getTag());
+                } else {
+                    setAsWallpaper(2);
+                }
+                return true;
         }
 
         return false;
@@ -317,4 +334,84 @@ public class ViewImageActivity extends AppCompatActivity {
         manager.enqueue(request);
         Toast.makeText(this, R.string.download_started, Toast.LENGTH_SHORT).show();
     }
+
+    private void setAsWallpaper(int setTo) {
+        Toast.makeText(ViewImageActivity.this, R.string.save_image_first, Toast.LENGTH_SHORT).show();
+        glide.asBitmap().load(mImageUrl).into(new CustomTarget<Bitmap>() {
+            @Override
+            public void onResourceReady(@NonNull Bitmap resource, @Nullable Transition<? super Bitmap> transition) {
+                WallpaperManager manager = WallpaperManager.getInstance(ViewImageActivity.this);
+
+                DisplayMetrics metrics = new DisplayMetrics();
+                WindowManager windowManager = (WindowManager) getSystemService(Context.WINDOW_SERVICE);
+
+                Rect rect = null;
+
+                if (windowManager != null) {
+                    windowManager.getDefaultDisplay().getMetrics(metrics);
+                    int height = metrics.heightPixels;
+                    int width = metrics.widthPixels;
+
+                    if (Build.VERSION.SDK_INT < Build.VERSION_CODES.N) {
+                        resource = ThumbnailUtils.extractThumbnail(resource, width, height);
+                    }
+
+                    float imageAR = (float) resource.getWidth() / (float) resource.getHeight();
+                    float screenAR = (float) width / (float) height;
+
+                    if (imageAR > screenAR) {
+                        int desiredWidth = (int) (resource.getHeight() * screenAR);
+                        rect = new Rect((resource.getWidth() - desiredWidth) / 2, 0, resource.getWidth(), resource.getHeight());
+                    } else {
+                        int desiredHeight = (int) (resource.getWidth() / screenAR);
+                        rect = new Rect(0, (resource.getHeight() - desiredHeight) / 2, resource.getWidth(), (resource.getHeight() + desiredHeight) / 2);
+                    }
+                }
+                try {
+                    switch (setTo) {
+                        case 0:
+                            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
+                                manager.setBitmap(resource, rect, true, WallpaperManager.FLAG_SYSTEM);
+                            }
+                            break;
+                        case 1:
+                            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
+                                manager.setBitmap(resource, rect, true, WallpaperManager.FLAG_LOCK);
+                            }
+                            break;
+                        case 2:
+                            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
+                                manager.setBitmap(resource, rect, true, WallpaperManager.FLAG_SYSTEM | WallpaperManager.FLAG_LOCK);
+                            } else {
+                                manager.setBitmap(resource);
+                            }
+                            break;
+                    }
+                    Toast.makeText(ViewImageActivity.this, R.string.wallpaper_set, Toast.LENGTH_SHORT).show();
+                } catch (IOException e) {
+                    Toast.makeText(ViewImageActivity.this, R.string.error_set_wallpaper, Toast.LENGTH_SHORT).show();
+                }
+            }
+
+            @Override
+            public void onLoadCleared(@Nullable Drawable placeholder) {
+
+            }
+        });
+    }
+
+    @Override
+    public void setToHomeScreen(int viewPagerPosition) {
+        setAsWallpaper(0);
+    }
+
+    @Override
+    public void setToLockScreen(int viewPagerPosition) {
+        setAsWallpaper(1);
+    }
+
+    @Override
+    public void setToBoth(int viewPagerPosition) {
+        setAsWallpaper(2);
+    }
 }
diff --git a/app/src/main/java/ml/docilealligator/infinityforreddit/Activity/ViewImgurMediaActivity.java b/app/src/main/java/ml/docilealligator/infinityforreddit/Activity/ViewImgurMediaActivity.java
index f38315db..c4b0e38d 100644
--- a/app/src/main/java/ml/docilealligator/infinityforreddit/Activity/ViewImgurMediaActivity.java
+++ b/app/src/main/java/ml/docilealligator/infinityforreddit/Activity/ViewImgurMediaActivity.java
@@ -1,17 +1,27 @@
 package ml.docilealligator.infinityforreddit.Activity;
 
+import android.app.WallpaperManager;
+import android.content.Context;
 import android.content.SharedPreferences;
+import android.graphics.Bitmap;
+import android.graphics.Rect;
 import android.graphics.drawable.ColorDrawable;
 import android.graphics.drawable.Drawable;
+import android.media.ThumbnailUtils;
 import android.os.AsyncTask;
+import android.os.Build;
 import android.os.Bundle;
+import android.util.DisplayMetrics;
 import android.view.Menu;
 import android.view.MenuItem;
 import android.view.View;
+import android.view.WindowManager;
 import android.widget.LinearLayout;
 import android.widget.ProgressBar;
+import android.widget.Toast;
 
 import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
 import androidx.appcompat.app.ActionBar;
 import androidx.appcompat.app.AppCompatActivity;
 import androidx.fragment.app.Fragment;
@@ -19,12 +29,16 @@ import androidx.fragment.app.FragmentManager;
 import androidx.fragment.app.FragmentStatePagerAdapter;
 import androidx.viewpager.widget.ViewPager;
 
+import com.bumptech.glide.Glide;
+import com.bumptech.glide.request.target.CustomTarget;
+import com.bumptech.glide.request.transition.Transition;
 import com.thefuntasty.hauler.HaulerView;
 
 import org.json.JSONArray;
 import org.json.JSONException;
 import org.json.JSONObject;
 
+import java.io.IOException;
 import java.util.ArrayList;
 
 import javax.inject.Inject;
@@ -44,6 +58,7 @@ import ml.docilealligator.infinityforreddit.Fragment.ViewImgurVideoFragment;
 import ml.docilealligator.infinityforreddit.ImgurMedia;
 import ml.docilealligator.infinityforreddit.Infinity;
 import ml.docilealligator.infinityforreddit.R;
+import ml.docilealligator.infinityforreddit.SetAsWallpaperCallback;
 import ml.docilealligator.infinityforreddit.Utils.APIUtils;
 import ml.docilealligator.infinityforreddit.Utils.JSONUtils;
 import ml.docilealligator.infinityforreddit.Utils.SharedPreferencesUtils;
@@ -52,7 +67,7 @@ import retrofit2.Callback;
 import retrofit2.Response;
 import retrofit2.Retrofit;
 
-public class ViewImgurMediaActivity extends AppCompatActivity {
+public class ViewImgurMediaActivity extends AppCompatActivity implements SetAsWallpaperCallback {
 
     public static final String EXTRA_IMGUR_TYPE = "EIT";
     public static final String EXTRA_IMGUR_ID = "EII";
@@ -300,6 +315,90 @@ public class ViewImgurMediaActivity extends AppCompatActivity {
         outState.putParcelableArrayList(IMGUR_IMAGES_STATE, images);
     }
 
+    public void setAsWallpaper(String link, int setTo) {
+        Toast.makeText(ViewImgurMediaActivity.this, R.string.save_image_first, Toast.LENGTH_SHORT).show();
+        Glide.with(this).asBitmap().load(link).into(new CustomTarget<Bitmap>() {
+            @Override
+            public void onResourceReady(@NonNull Bitmap resource, @Nullable Transition<? super Bitmap> transition) {
+                WallpaperManager manager = WallpaperManager.getInstance(ViewImgurMediaActivity.this);
+
+                DisplayMetrics metrics = new DisplayMetrics();
+                WindowManager windowManager = (WindowManager) getSystemService(Context.WINDOW_SERVICE);
+
+                Rect rect = null;
+
+                if (windowManager != null) {
+                    windowManager.getDefaultDisplay().getMetrics(metrics);
+                    int height = metrics.heightPixels;
+                    int width = metrics.widthPixels;
+
+                    if (Build.VERSION.SDK_INT < Build.VERSION_CODES.N) {
+                        resource = ThumbnailUtils.extractThumbnail(resource, width, height);
+                    }
+
+                    float imageAR = (float) resource.getWidth() / (float) resource.getHeight();
+                    float screenAR = (float) width / (float) height;
+
+                    if (imageAR > screenAR) {
+                        int desiredWidth = (int) (resource.getHeight() * screenAR);
+                        rect = new Rect((resource.getWidth() - desiredWidth) / 2, 0, resource.getWidth(), resource.getHeight());
+                    } else {
+                        int desiredHeight = (int) (resource.getWidth() / screenAR);
+                        rect = new Rect(0, (resource.getHeight() - desiredHeight) / 2, resource.getWidth(), (resource.getHeight() + desiredHeight) / 2);
+                    }
+                }
+                try {
+                    switch (setTo) {
+                        case 0:
+                            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
+                                manager.setBitmap(resource, rect, true, WallpaperManager.FLAG_SYSTEM);
+                            }
+                            break;
+                        case 1:
+                            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
+                                manager.setBitmap(resource, rect, true, WallpaperManager.FLAG_LOCK);
+                            }
+                            break;
+                        case 2:
+                            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
+                                manager.setBitmap(resource, rect, true, WallpaperManager.FLAG_SYSTEM | WallpaperManager.FLAG_LOCK);
+                            } else {
+                                manager.setBitmap(resource);
+                            }
+                            break;
+                    }
+                    Toast.makeText(ViewImgurMediaActivity.this, R.string.wallpaper_set, Toast.LENGTH_SHORT).show();
+                } catch (IOException e) {
+                    Toast.makeText(ViewImgurMediaActivity.this, R.string.error_set_wallpaper, Toast.LENGTH_SHORT).show();
+                }
+            }
+
+            @Override
+            public void onLoadCleared(@Nullable Drawable placeholder) {
+
+            }
+        });
+    }
+
+    @Override
+    public void setToHomeScreen(int viewPagerPosition) {
+        setAsWallpaper(images.get(viewPagerPosition).getLink(), 0);
+    }
+
+    @Override
+    public void setToLockScreen(int viewPagerPosition) {
+        setAsWallpaper(images.get(viewPagerPosition).getLink(), 1);
+    }
+
+    @Override
+    public void setToBoth(int viewPagerPosition) {
+        setAsWallpaper(images.get(viewPagerPosition).getLink(), 2);
+    }
+
+    public int getCurrentPagePosition() {
+        return viewPager.getCurrentItem();
+    }
+
     private class SectionsPagerAdapter extends FragmentStatePagerAdapter {
 
         SectionsPagerAdapter(@NonNull FragmentManager fm) {
diff --git a/app/src/main/java/ml/docilealligator/infinityforreddit/BottomSheetFragment/SetAsWallpaperBottomSheetFragment.java b/app/src/main/java/ml/docilealligator/infinityforreddit/BottomSheetFragment/SetAsWallpaperBottomSheetFragment.java
new file mode 100644
index 00000000..db6e80e9
--- /dev/null
+++ b/app/src/main/java/ml/docilealligator/infinityforreddit/BottomSheetFragment/SetAsWallpaperBottomSheetFragment.java
@@ -0,0 +1,79 @@
+package ml.docilealligator.infinityforreddit.BottomSheetFragment;
+
+import android.app.Activity;
+import android.content.Context;
+import android.os.Bundle;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.TextView;
+
+import androidx.annotation.NonNull;
+
+import com.deishelon.roundedbottomsheet.RoundedBottomSheetDialogFragment;
+
+import butterknife.BindView;
+import butterknife.ButterKnife;
+import ml.docilealligator.infinityforreddit.R;
+import ml.docilealligator.infinityforreddit.SetAsWallpaperCallback;
+
+public class SetAsWallpaperBottomSheetFragment extends RoundedBottomSheetDialogFragment {
+
+    public static final String EXTRA_VIEW_PAGER_POSITION = "EVPP";
+
+    @BindView(R.id.home_screen_text_view_set_as_wallpaper_bottom_sheet_fragment)
+    TextView homeScreenTextvView;
+    @BindView(R.id.lock_screen_text_view_set_as_wallpaper_bottom_sheet_fragment)
+    TextView lockScreenTextView;
+    @BindView(R.id.both_text_view_set_as_wallpaper_bottom_sheet_fragment)
+    TextView bothTextView;
+    private Activity mActivity;
+
+    public SetAsWallpaperBottomSheetFragment() {
+        // Required empty public constructor
+    }
+
+    @Override
+    public View onCreateView(LayoutInflater inflater, ViewGroup container,
+                             Bundle savedInstanceState) {
+        View rootView = inflater.inflate(R.layout.fragment_set_as_wallpaper_bottom_sheet, container, false);
+        ButterKnife.bind(this, rootView);
+
+        Bundle bundle = getArguments();
+        int viewPagerPosition = bundle == null ? -1 : bundle.getInt(EXTRA_VIEW_PAGER_POSITION);
+
+        bothTextView.setOnClickListener(view -> {
+            if (mActivity instanceof SetAsWallpaperCallback) {
+                ((SetAsWallpaperCallback) mActivity).setToBoth(viewPagerPosition);
+            }
+            dismiss();
+        });
+
+        if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.N) {
+            homeScreenTextvView.setVisibility(View.VISIBLE);
+            lockScreenTextView.setVisibility(View.VISIBLE);
+
+            homeScreenTextvView.setOnClickListener(view -> {
+                if (mActivity instanceof SetAsWallpaperCallback) {
+                    ((SetAsWallpaperCallback) mActivity).setToHomeScreen(viewPagerPosition);
+                }
+                dismiss();
+            });
+
+            lockScreenTextView.setOnClickListener(view -> {
+                if (mActivity instanceof SetAsWallpaperCallback) {
+                    ((SetAsWallpaperCallback) mActivity).setToLockScreen(viewPagerPosition);
+                }
+                dismiss();
+            });
+        }
+
+        return rootView;
+    }
+
+    @Override
+    public void onAttach(@NonNull Context context) {
+        super.onAttach(context);
+        this.mActivity = (Activity) context;
+    }
+}
\ No newline at end of file
diff --git a/app/src/main/java/ml/docilealligator/infinityforreddit/Fragment/ViewImgurImageFragment.java b/app/src/main/java/ml/docilealligator/infinityforreddit/Fragment/ViewImgurImageFragment.java
index ae047287..0319c904 100644
--- a/app/src/main/java/ml/docilealligator/infinityforreddit/Fragment/ViewImgurImageFragment.java
+++ b/app/src/main/java/ml/docilealligator/infinityforreddit/Fragment/ViewImgurImageFragment.java
@@ -1,7 +1,6 @@
 package ml.docilealligator.infinityforreddit.Fragment;
 
 import android.Manifest;
-import android.app.Activity;
 import android.app.DownloadManager;
 import android.content.Context;
 import android.content.Intent;
@@ -43,7 +42,9 @@ import java.io.File;
 
 import butterknife.BindView;
 import butterknife.ButterKnife;
+import ml.docilealligator.infinityforreddit.Activity.ViewImgurMediaActivity;
 import ml.docilealligator.infinityforreddit.AsyncTask.SaveImageToFileAsyncTask;
+import ml.docilealligator.infinityforreddit.BottomSheetFragment.SetAsWallpaperBottomSheetFragment;
 import ml.docilealligator.infinityforreddit.BuildConfig;
 import ml.docilealligator.infinityforreddit.ImgurMedia;
 import ml.docilealligator.infinityforreddit.R;
@@ -60,7 +61,7 @@ public class ViewImgurImageFragment extends Fragment {
     @BindView(R.id.load_image_error_linear_layout_view_imgur_image_fragment)
     LinearLayout errorLinearLayout;
 
-    private Activity activity;
+    private ViewImgurMediaActivity activity;
     private RequestManager glide;
     private ImgurMedia imgurMedia;
     private boolean isDownloading = false;
@@ -143,7 +144,7 @@ public class ViewImgurImageFragment extends Fragment {
                     @Override
                     public void onResourceReady(@NonNull Bitmap resource, @Nullable Transition<? super Bitmap> transition) {
                         if (activity.getExternalCacheDir() != null) {
-                            Toast.makeText(activity, R.string.save_image_before_sharing, Toast.LENGTH_SHORT).show();
+                            Toast.makeText(activity, R.string.save_image_first, Toast.LENGTH_SHORT).show();
                             new SaveImageToFileAsyncTask(resource, activity.getExternalCacheDir().getPath(),
                                     imgurMedia.getFileName(),
                                     new SaveImageToFileAsyncTask.SaveImageToFileAsyncTaskListener() {
@@ -177,6 +178,17 @@ public class ViewImgurImageFragment extends Fragment {
                     }
                 });
                 return true;
+            case R.id.action_set_wallpaper_view_imgur_image_fragments:
+                if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
+                    SetAsWallpaperBottomSheetFragment setAsWallpaperBottomSheetFragment = new SetAsWallpaperBottomSheetFragment();
+                    Bundle bundle = new Bundle();
+                    bundle.putInt(SetAsWallpaperBottomSheetFragment.EXTRA_VIEW_PAGER_POSITION, activity.getCurrentPagePosition());
+                    setAsWallpaperBottomSheetFragment.setArguments(bundle);
+                    setAsWallpaperBottomSheetFragment.show(activity.getSupportFragmentManager(), setAsWallpaperBottomSheetFragment.getTag());
+                } else {
+                    activity.setAsWallpaper(imgurMedia.getLink(), 2);
+                }
+                return true;
         }
 
         return false;
@@ -241,6 +253,6 @@ public class ViewImgurImageFragment extends Fragment {
     @Override
     public void onAttach(@NonNull Context context) {
         super.onAttach(context);
-        activity = (Activity) context;
+        activity = (ViewImgurMediaActivity) context;
     }
 }
diff --git a/app/src/main/java/ml/docilealligator/infinityforreddit/SetAsWallpaperCallback.java b/app/src/main/java/ml/docilealligator/infinityforreddit/SetAsWallpaperCallback.java
new file mode 100644
index 00000000..7fb6e324
--- /dev/null
+++ b/app/src/main/java/ml/docilealligator/infinityforreddit/SetAsWallpaperCallback.java
@@ -0,0 +1,7 @@
+package ml.docilealligator.infinityforreddit;
+
+public interface SetAsWallpaperCallback {
+    void setToHomeScreen(int viewPagerPosition);
+    void setToLockScreen(int viewPagerPosition);
+    void setToBoth(int viewPagerPosition);
+}
\ No newline at end of file
diff --git a/app/src/main/res/drawable-night/ic_home_black_24dp.xml b/app/src/main/res/drawable-night/ic_home_black_24dp.xml
new file mode 100644
index 00000000..a35f1eff
--- /dev/null
+++ b/app/src/main/res/drawable-night/ic_home_black_24dp.xml
@@ -0,0 +1,9 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="24dp"
+    android:height="24dp"
+    android:viewportWidth="24"
+    android:viewportHeight="24">
+  <path
+      android:pathData="M12,5.69l5,4.5V18h-2v-6H9v6H7v-7.81l5,-4.5M12,3L2,12h3v8h6v-6h2v6h6v-8h3L12,3z"
+      android:fillColor="#000000"/>
+</vector>
diff --git a/app/src/main/res/drawable-night/ic_wallpaper_both_black_24dp.xml b/app/src/main/res/drawable-night/ic_wallpaper_both_black_24dp.xml
new file mode 100644
index 00000000..d41e02ac
--- /dev/null
+++ b/app/src/main/res/drawable-night/ic_wallpaper_both_black_24dp.xml
@@ -0,0 +1,9 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="24dp"
+    android:height="24dp"
+    android:viewportWidth="24"
+    android:viewportHeight="24">
+  <path
+      android:pathData="M17,1.01L7,1c-1.1,0 -2,0.9 -2,2v18c0,1.1 0.9,2 2,2h10c1.1,0 2,-0.9 2,-2V3c0,-1.1 -0.9,-1.99 -2,-1.99zM17,19H7V5h10v14z"
+      android:fillColor="#FFFFFF"/>
+</vector>
diff --git a/app/src/main/res/drawable-night/ic_wallpaper_home_screen_black_24dp.xml b/app/src/main/res/drawable-night/ic_wallpaper_home_screen_black_24dp.xml
new file mode 100644
index 00000000..c112c91b
--- /dev/null
+++ b/app/src/main/res/drawable-night/ic_wallpaper_home_screen_black_24dp.xml
@@ -0,0 +1,9 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="24dp"
+    android:height="24dp"
+    android:viewportWidth="24"
+    android:viewportHeight="24">
+  <path
+      android:pathData="M12,5.69l5,4.5V18h-2v-6H9v6H7v-7.81l5,-4.5M12,3L2,12h3v8h6v-6h2v6h6v-8h3L12,3z"
+      android:fillColor="#FFFFFF"/>
+</vector>
diff --git a/app/src/main/res/drawable-night/ic_wallpaper_lock_screen_black_24dp.xml b/app/src/main/res/drawable-night/ic_wallpaper_lock_screen_black_24dp.xml
new file mode 100644
index 00000000..c771c895
--- /dev/null
+++ b/app/src/main/res/drawable-night/ic_wallpaper_lock_screen_black_24dp.xml
@@ -0,0 +1,9 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="24dp"
+    android:height="24dp"
+    android:viewportWidth="24"
+    android:viewportHeight="24">
+  <path
+      android:pathData="M18,8h-1L17,6c0,-2.76 -2.24,-5 -5,-5S7,3.24 7,6v2L6,8c-1.1,0 -2,0.9 -2,2v10c0,1.1 0.9,2 2,2h12c1.1,0 2,-0.9 2,-2L20,10c0,-1.1 -0.9,-2 -2,-2zM9,6c0,-1.66 1.34,-3 3,-3s3,1.34 3,3v2L9,8L9,6zM18,20L6,20L6,10h12v10zM12,17c1.1,0 2,-0.9 2,-2s-0.9,-2 -2,-2 -2,0.9 -2,2 0.9,2 2,2z"
+      android:fillColor="#FFFFFF"/>
+</vector>
diff --git a/app/src/main/res/drawable/ic_wallpaper_both_black_24dp.xml b/app/src/main/res/drawable/ic_wallpaper_both_black_24dp.xml
new file mode 100644
index 00000000..98044749
--- /dev/null
+++ b/app/src/main/res/drawable/ic_wallpaper_both_black_24dp.xml
@@ -0,0 +1,9 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="24dp"
+    android:height="24dp"
+    android:viewportWidth="24"
+    android:viewportHeight="24">
+  <path
+      android:pathData="M17,1.01L7,1c-1.1,0 -2,0.9 -2,2v18c0,1.1 0.9,2 2,2h10c1.1,0 2,-0.9 2,-2V3c0,-1.1 -0.9,-1.99 -2,-1.99zM17,19H7V5h10v14z"
+      android:fillColor="#000000"/>
+</vector>
diff --git a/app/src/main/res/drawable/ic_wallpaper_home_screen_black_24dp.xml b/app/src/main/res/drawable/ic_wallpaper_home_screen_black_24dp.xml
new file mode 100644
index 00000000..a35f1eff
--- /dev/null
+++ b/app/src/main/res/drawable/ic_wallpaper_home_screen_black_24dp.xml
@@ -0,0 +1,9 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="24dp"
+    android:height="24dp"
+    android:viewportWidth="24"
+    android:viewportHeight="24">
+  <path
+      android:pathData="M12,5.69l5,4.5V18h-2v-6H9v6H7v-7.81l5,-4.5M12,3L2,12h3v8h6v-6h2v6h6v-8h3L12,3z"
+      android:fillColor="#000000"/>
+</vector>
diff --git a/app/src/main/res/drawable/ic_wallpaper_lock_screen_black_24dp.xml b/app/src/main/res/drawable/ic_wallpaper_lock_screen_black_24dp.xml
new file mode 100644
index 00000000..fb71425e
--- /dev/null
+++ b/app/src/main/res/drawable/ic_wallpaper_lock_screen_black_24dp.xml
@@ -0,0 +1,9 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="24dp"
+    android:height="24dp"
+    android:viewportWidth="24"
+    android:viewportHeight="24">
+  <path
+      android:pathData="M18,8h-1L17,6c0,-2.76 -2.24,-5 -5,-5S7,3.24 7,6v2L6,8c-1.1,0 -2,0.9 -2,2v10c0,1.1 0.9,2 2,2h12c1.1,0 2,-0.9 2,-2L20,10c0,-1.1 -0.9,-2 -2,-2zM9,6c0,-1.66 1.34,-3 3,-3s3,1.34 3,3v2L9,8L9,6zM18,20L6,20L6,10h12v10zM12,17c1.1,0 2,-0.9 2,-2s-0.9,-2 -2,-2 -2,0.9 -2,2 0.9,2 2,2z"
+      android:fillColor="#000000"/>
+</vector>
diff --git a/app/src/main/res/layout/fragment_set_as_wallpaper_bottom_sheet.xml b/app/src/main/res/layout/fragment_set_as_wallpaper_bottom_sheet.xml
new file mode 100644
index 00000000..b8854ade
--- /dev/null
+++ b/app/src/main/res/layout/fragment_set_as_wallpaper_bottom_sheet.xml
@@ -0,0 +1,74 @@
+<?xml version="1.0" encoding="utf-8"?>
+<androidx.core.widget.NestedScrollView xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="wrap_content"
+    android:paddingBottom="8dp"
+    android:overScrollMode="never">
+
+    <LinearLayout
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:orientation="vertical">
+
+        <TextView
+            android:id="@+id/home_screen_text_view_set_as_wallpaper_bottom_sheet_fragment"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:gravity="center_vertical"
+            android:paddingTop="16dp"
+            android:paddingBottom="16dp"
+            android:paddingStart="32dp"
+            android:paddingEnd="32dp"
+            android:text="@string/set_to_home_screen"
+            android:textColor="?attr/primaryTextColor"
+            android:textSize="?attr/font_default"
+            android:fontFamily="?attr/font_family"
+            android:drawableStart="@drawable/ic_wallpaper_home_screen_black_24dp"
+            android:drawablePadding="48dp"
+            android:clickable="true"
+            android:focusable="true"
+            android:background="?attr/selectableItemBackground"
+            android:visibility="gone" />
+
+        <TextView
+            android:id="@+id/lock_screen_text_view_set_as_wallpaper_bottom_sheet_fragment"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:gravity="center_vertical"
+            android:paddingTop="16dp"
+            android:paddingBottom="16dp"
+            android:paddingStart="32dp"
+            android:paddingEnd="32dp"
+            android:text="@string/set_to_lock_screen"
+            android:textColor="?attr/primaryTextColor"
+            android:textSize="?attr/font_default"
+            android:fontFamily="?attr/font_family"
+            android:drawableStart="@drawable/ic_wallpaper_lock_screen_black_24dp"
+            android:drawablePadding="48dp"
+            android:clickable="true"
+            android:focusable="true"
+            android:background="?attr/selectableItemBackground"
+            android:visibility="gone" />
+
+        <TextView
+            android:id="@+id/both_text_view_set_as_wallpaper_bottom_sheet_fragment"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:gravity="center_vertical"
+            android:paddingTop="16dp"
+            android:paddingBottom="16dp"
+            android:paddingStart="32dp"
+            android:paddingEnd="32dp"
+            android:text="@string/set_to_both"
+            android:textColor="?attr/primaryTextColor"
+            android:textSize="?attr/font_default"
+            android:fontFamily="?attr/font_family"
+            android:drawableStart="@drawable/ic_wallpaper_both_black_24dp"
+            android:drawablePadding="48dp"
+            android:clickable="true"
+            android:focusable="true"
+            android:background="?attr/selectableItemBackground" />
+
+    </LinearLayout>
+
+</androidx.core.widget.NestedScrollView>
\ No newline at end of file
diff --git a/app/src/main/res/menu/view_image_activity.xml b/app/src/main/res/menu/view_image_activity.xml
index 1f86092b..0c080ae9 100644
--- a/app/src/main/res/menu/view_image_activity.xml
+++ b/app/src/main/res/menu/view_image_activity.xml
@@ -14,4 +14,10 @@
         android:title="@string/action_share"
         android:icon="@drawable/ic_share_toolbar_white_24dp"
         app:showAsAction="ifRoom" />
+
+    <item
+        android:id="@+id/action_set_wallpaper_view_image_activity"
+        android:orderInCategory="3"
+        android:title="@string/action_set_wallpaper"
+        app:showAsAction="never" />
 </menu>
\ No newline at end of file
diff --git a/app/src/main/res/menu/view_imgur_image_fragments.xml b/app/src/main/res/menu/view_imgur_image_fragments.xml
index 806e91f5..bba34621 100644
--- a/app/src/main/res/menu/view_imgur_image_fragments.xml
+++ b/app/src/main/res/menu/view_imgur_image_fragments.xml
@@ -14,4 +14,10 @@
         android:title="@string/action_share"
         android:icon="@drawable/ic_share_toolbar_white_24dp"
         app:showAsAction="ifRoom" />
+
+    <item
+        android:id="@+id/action_set_wallpaper_view_imgur_image_fragments"
+        android:orderInCategory="3"
+        android:title="@string/action_set_wallpaper"
+        app:showAsAction="never" />
 </menu>
\ No newline at end of file
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index f79e18a9..032a47eb 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -61,6 +61,7 @@
     <string name="action_share">Share</string>
     <string name="action_preview">Preview</string>
     <string name="action_report">Report</string>
+    <string name="action_set_wallpaper">Set as Wallpaper</string>
 
     <string name="parse_json_response_error">Error occurred when parsing the JSON response</string>
     <string name="retrieve_token_error">Error Retrieving the token</string>
@@ -518,8 +519,8 @@
     <string name="cannot_save_image">Cannot save the image</string>
     <string name="cannot_save_gif">Cannot save the gif</string>
     <string name="cannot_get_storage">Cannot access the app storage</string>
-    <string name="save_image_before_sharing">Saving the image. Please wait.</string>
-    <string name="save_gif_before_sharing">Saving the gif. Please wait.</string>
+    <string name="save_image_first">Saving the image. Please wait.</string>
+    <string name="save_gif_first">Saving the gif. Please wait.</string>
 
     <string name="theme_name_description">Tap to change the name of this theme.</string>
     <string name="theme_item_is_light_theme">Set as Light Theme</string>
@@ -763,7 +764,12 @@
     <string name="downloading_reddit_video_failed_cannot_save_audio">Download failed: cannot save audio to cache directory</string>
     <string name="downloading_reddit_video_failed_cannot_mux">Download failed: cannot mux video and audio</string>
     <string name="downloading_reddit_video_failed_cannot_save_mux_video">Download failed: cannot save the video to public directory</string>
-    <!-- TODO: Remove or change this placeholder text -->
-    <string name="hello_blank_fragment">Hello blank fragment</string>
+
+    <string name="wallpaper_set">Wallpaper set</string>
+    <string name="error_set_wallpaper">Cannot set wallpaper</string>
+
+    <string name="set_to_home_screen">Set to Home Screen</string>
+    <string name="set_to_lock_screen">Set to Lock Screen</string>
+    <string name="set_to_both">Set to Both</string>
 
 </resources>