diff --git a/briar-android/src/main/java/org/briarproject/briar/android/activity/ActivityComponent.java b/briar-android/src/main/java/org/briarproject/briar/android/activity/ActivityComponent.java
index 18527125a2aba451ad3af3213a1202bab9ba03fb..8a5c6a69558acbd966b46a5122a73b0efc6e20a3 100644
--- a/briar-android/src/main/java/org/briarproject/briar/android/activity/ActivityComponent.java
+++ b/briar-android/src/main/java/org/briarproject/briar/android/activity/ActivityComponent.java
@@ -20,6 +20,7 @@ import org.briarproject.briar.android.contact.ContactModule;
import org.briarproject.briar.android.conversation.AliasDialogFragment;
import org.briarproject.briar.android.conversation.ConversationActivity;
import org.briarproject.briar.android.conversation.ImageActivity;
+import org.briarproject.briar.android.conversation.ImageFragment;
import org.briarproject.briar.android.forum.CreateForumActivity;
import org.briarproject.briar.android.forum.ForumActivity;
import org.briarproject.briar.android.forum.ForumListFragment;
@@ -218,4 +219,6 @@ public interface ActivityComponent {
void inject(AliasDialogFragment aliasDialogFragment);
+ void inject(ImageFragment imageFragment);
+
}
diff --git a/briar-android/src/main/java/org/briarproject/briar/android/conversation/AttachmentItem.java b/briar-android/src/main/java/org/briarproject/briar/android/conversation/AttachmentItem.java
index bbc7c1f6baa23648de50da83e4fe33a56cf42541..43ab2efd5f95d39302bdc872f79de1e47bd4f1e8 100644
--- a/briar-android/src/main/java/org/briarproject/briar/android/conversation/AttachmentItem.java
+++ b/briar-android/src/main/java/org/briarproject/briar/android/conversation/AttachmentItem.java
@@ -2,6 +2,7 @@ package org.briarproject.briar.android.conversation;
import android.os.Parcel;
import android.os.Parcelable;
+import android.support.annotation.Nullable;
import org.briarproject.bramble.api.nullsafety.NotNullByDefault;
import org.briarproject.bramble.api.sync.MessageId;
@@ -111,4 +112,10 @@ public class AttachmentItem implements Parcelable {
dest.writeByte((byte) (hasError ? 1 : 0));
}
+ @Override
+ public boolean equals(@Nullable Object o) {
+ return o instanceof AttachmentItem &&
+ messageId.equals(((AttachmentItem) o).messageId);
+ }
+
}
diff --git a/briar-android/src/main/java/org/briarproject/briar/android/conversation/ConversationActivity.java b/briar-android/src/main/java/org/briarproject/briar/android/conversation/ConversationActivity.java
index f5f6ff37aeac3afabc3bd543407b7107107e80b3..5e4ef63a5e8c3db60598e08f4c949dea451ed867 100644
--- a/briar-android/src/main/java/org/briarproject/briar/android/conversation/ConversationActivity.java
+++ b/briar-android/src/main/java/org/briarproject/briar/android/conversation/ConversationActivity.java
@@ -121,8 +121,9 @@ import static org.briarproject.bramble.util.StringUtils.isNullOrEmpty;
import static org.briarproject.briar.android.TestingConstants.FEATURE_FLAG_IMAGE_ATTACHMENTS;
import static org.briarproject.briar.android.activity.RequestCodes.REQUEST_ATTACH_IMAGE;
import static org.briarproject.briar.android.activity.RequestCodes.REQUEST_INTRODUCTION;
-import static org.briarproject.briar.android.conversation.ImageActivity.ATTACHMENT;
+import static org.briarproject.briar.android.conversation.ImageActivity.ATTACHMENT_POSITION;
import static org.briarproject.briar.android.conversation.ImageActivity.DATE;
+import static org.briarproject.briar.android.conversation.ImageActivity.ATTACHMENTS;
import static org.briarproject.briar.android.conversation.ImageActivity.NAME;
import static org.briarproject.briar.android.settings.SettingsFragment.SETTINGS_NAMESPACE;
import static org.briarproject.briar.android.util.UiUtils.getAvatarTransitionName;
@@ -812,8 +813,11 @@ public class ConversationActivity extends BriarActivity
} else {
name = getString(R.string.you);
}
+ ArrayList<AttachmentItem> attachments =
+ new ArrayList<>(messageItem.getAttachments());
Intent i = new Intent(this, ImageActivity.class);
- i.putExtra(ATTACHMENT, item);
+ i.putParcelableArrayListExtra(ATTACHMENTS, attachments);
+ i.putExtra(ATTACHMENT_POSITION, attachments.indexOf(item));
i.putExtra(NAME, name);
i.putExtra(DATE, messageItem.getTime());
if (SDK_INT >= 23) {
diff --git a/briar-android/src/main/java/org/briarproject/briar/android/conversation/ImageActivity.java b/briar-android/src/main/java/org/briarproject/briar/android/conversation/ImageActivity.java
index f36cbab0fbd4344f3f86019749185ae101803f57..811bf11e3811b544945c9d31d3747ed7c07fccd4 100644
--- a/briar-android/src/main/java/org/briarproject/briar/android/conversation/ImageActivity.java
+++ b/briar-android/src/main/java/org/briarproject/briar/android/conversation/ImageActivity.java
@@ -4,15 +4,18 @@ import android.arch.lifecycle.ViewModelProvider;
import android.arch.lifecycle.ViewModelProviders;
import android.content.DialogInterface.OnClickListener;
import android.content.Intent;
-import android.graphics.drawable.Animatable;
import android.graphics.drawable.Drawable;
import android.os.Bundle;
import android.support.annotation.Nullable;
import android.support.annotation.RequiresApi;
import android.support.design.widget.AppBarLayout;
import android.support.design.widget.Snackbar;
+import android.support.v4.app.Fragment;
+import android.support.v4.app.FragmentManager;
+import android.support.v4.app.FragmentStatePagerAdapter;
import android.support.v4.content.ContextCompat;
import android.support.v4.graphics.drawable.DrawableCompat;
+import android.support.v4.view.ViewPager;
import android.support.v7.app.AlertDialog.Builder;
import android.support.v7.widget.Toolbar;
import android.transition.Fade;
@@ -20,23 +23,18 @@ import android.transition.Transition;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
+import android.view.ViewTreeObserver.OnGlobalLayoutListener;
import android.view.Window;
import android.widget.TextView;
-import com.bumptech.glide.load.DataSource;
-import com.bumptech.glide.load.engine.GlideException;
-import com.bumptech.glide.request.RequestListener;
-import com.bumptech.glide.request.target.Target;
-import com.github.chrisbanes.photoview.PhotoView;
-
import org.briarproject.briar.R;
import org.briarproject.briar.android.activity.ActivityComponent;
import org.briarproject.briar.android.activity.BriarActivity;
-import org.briarproject.briar.android.conversation.glide.GlideApp;
import org.briarproject.briar.android.view.PullDownLayout;
import java.text.SimpleDateFormat;
import java.util.Date;
+import java.util.List;
import java.util.Locale;
import javax.inject.Inject;
@@ -53,16 +51,15 @@ import static android.view.View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN;
import static android.view.View.SYSTEM_UI_FLAG_LAYOUT_STABLE;
import static android.view.View.VISIBLE;
import static android.view.WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS;
-import static android.widget.ImageView.ScaleType.FIT_START;
-import static com.bumptech.glide.load.engine.DiskCacheStrategy.NONE;
import static java.util.Objects.requireNonNull;
import static org.briarproject.briar.android.activity.RequestCodes.REQUEST_SAVE_ATTACHMENT;
import static org.briarproject.briar.android.util.UiUtils.formatDateAbsolute;
public class ImageActivity extends BriarActivity
- implements PullDownLayout.Callback {
+ implements PullDownLayout.Callback, OnGlobalLayoutListener {
- final static String ATTACHMENT = "attachment";
+ final static String ATTACHMENTS = "attachments";
+ final static String ATTACHMENT_POSITION = "position";
final static String NAME = "name";
final static String DATE = "date";
@@ -72,8 +69,8 @@ public class ImageActivity extends BriarActivity
private ImageViewModel viewModel;
private PullDownLayout layout;
private AppBarLayout appBarLayout;
- private PhotoView photoView;
- private AttachmentItem attachment;
+ private ViewPager viewPager;
+ private List<AttachmentItem> attachments;
@Override
public void injectActivity(ActivityComponent component) {
@@ -102,6 +99,7 @@ public class ImageActivity extends BriarActivity
layout = findViewById(R.id.layout);
layout.getBackground().setAlpha(255);
layout.setCallback(this);
+ layout.getViewTreeObserver().addOnGlobalLayoutListener(this);
// Status Bar
if (SDK_INT >= 21) {
@@ -118,59 +116,29 @@ public class ImageActivity extends BriarActivity
TextView dateView = toolbar.findViewById(R.id.dateView);
// Intent Extras
- attachment = getIntent().getParcelableExtra(ATTACHMENT);
- String name = getIntent().getStringExtra(NAME);
- long time = getIntent().getLongExtra(DATE, 0);
+ Intent i = getIntent();
+ attachments = i.getParcelableArrayListExtra(ATTACHMENTS);
+ int position = i.getIntExtra(ATTACHMENT_POSITION, -1);
+ if (position == -1) throw new IllegalStateException();
+ String name = i.getStringExtra(NAME);
+ long time = i.getLongExtra(DATE, 0);
String date = formatDateAbsolute(this, time);
contactName.setText(name);
dateView.setText(date);
- // Image View
- photoView = findViewById(R.id.photoView);
+ // Set up image ViewPager
+ viewPager = findViewById(R.id.viewPager);
+ ImagePagerAdapter pagerAdapter =
+ new ImagePagerAdapter(getSupportFragmentManager());
+ viewPager.setAdapter(pagerAdapter);
+ viewPager.setCurrentItem(position);
+
if (SDK_INT >= 16) {
- photoView.setOnClickListener(view -> toggleSystemUi());
+ viewModel.getOnImageClicked().observe(this, this::onImageClicked);
window.getDecorView().setSystemUiVisibility(
SYSTEM_UI_FLAG_LAYOUT_STABLE |
SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN);
}
-
- // Request Listener
- RequestListener<Drawable> listener = new RequestListener<Drawable>() {
- @Override
- public boolean onLoadFailed(@Nullable GlideException e,
- Object model, Target<Drawable> target,
- boolean isFirstResource) {
- supportStartPostponedEnterTransition();
- return false;
- }
-
- @Override
- public boolean onResourceReady(Drawable resource, Object model,
- Target<Drawable> target, DataSource dataSource,
- boolean isFirstResource) {
- if (SDK_INT >= 21 && !(resource instanceof Animatable)) {
- // set transition name only when not animatable,
- // because the animation won't start otherwise
- photoView.setTransitionName(
- attachment.getTransitionName());
- }
- // Move image to the top if overlapping toolbar
- if (isOverlappingToolbar(resource)) {
- photoView.setScaleType(FIT_START);
- }
- supportStartPostponedEnterTransition();
- return false;
- }
- };
-
- // Load Image
- GlideApp.with(this)
- .load(attachment)
- .diskCacheStrategy(NONE)
- .error(R.drawable.ic_image_broken)
- .dontTransform()
- .addListener(listener)
- .into(photoView);
}
@Override
@@ -193,11 +161,23 @@ public class ImageActivity extends BriarActivity
}
}
+ @Override
+ public void onGlobalLayout() {
+ viewModel.setToolbarPosition(
+ appBarLayout.getTop(), appBarLayout.getBottom()
+ );
+ if (SDK_INT >= 16) {
+ layout.getViewTreeObserver().removeOnGlobalLayoutListener(this);
+ } else {
+ layout.getViewTreeObserver().removeGlobalOnLayoutListener(this);
+ }
+ }
+
@Override
protected void onActivityResult(int request, int result, Intent data) {
super.onActivityResult(request, result, data);
if (request == REQUEST_SAVE_ATTACHMENT && result == RESULT_OK) {
- viewModel.saveImage(attachment, data.getData());
+ viewModel.saveImage(getVisibleAttachment(), data.getData());
}
}
@@ -225,6 +205,14 @@ public class ImageActivity extends BriarActivity
supportFinishAfterTransition();
}
+ @RequiresApi(api = 16)
+ private void onImageClicked(@Nullable Boolean clicked) {
+ if (clicked != null && clicked) {
+ toggleSystemUi();
+ viewModel.onOnImageClickSeen();
+ }
+ }
+
@RequiresApi(api = 16)
private void toggleSystemUi() {
View decorView = getWindow().getDecorView();
@@ -259,29 +247,13 @@ public class ImageActivity extends BriarActivity
.start();
}
- private boolean isOverlappingToolbar(Drawable drawable) {
- int width = drawable.getIntrinsicWidth();
- int height = drawable.getIntrinsicHeight();
- float widthPercentage = photoView.getWidth() / (float) width;
- float heightPercentage = photoView.getHeight() / (float) height;
- float scaleFactor = Math.min(widthPercentage, heightPercentage);
- int realWidth = (int) (width * scaleFactor);
- int realHeight = (int) (height * scaleFactor);
- // return if photo doesn't use the full width,
- // because it will be moved to the right otherwise
- if (realWidth < photoView.getWidth()) return false;
- int drawableTop = (photoView.getHeight() - realHeight) / 2;
- return drawableTop < appBarLayout.getBottom() &&
- drawableTop != appBarLayout.getTop();
- }
-
private void showSaveImageDialog() {
OnClickListener okListener = (dialog, which) -> {
if (SDK_INT >= 19) {
Intent intent = getCreationIntent();
startActivityForResult(intent, REQUEST_SAVE_ATTACHMENT);
} else {
- viewModel.saveImage(attachment);
+ viewModel.saveImage(getVisibleAttachment());
}
};
Builder builder = new Builder(this, R.style.BriarDialogTheme);
@@ -303,7 +275,7 @@ public class ImageActivity extends BriarActivity
String fileName = sdf.format(new Date());
Intent intent = new Intent(ACTION_CREATE_DOCUMENT);
intent.addCategory(CATEGORY_OPENABLE);
- intent.setType(attachment.getMimeType());
+ intent.setType(getVisibleAttachment().getMimeType());
intent.putExtra(EXTRA_TITLE, fileName);
return intent;
}
@@ -320,4 +292,26 @@ public class ImageActivity extends BriarActivity
viewModel.onSaveStateSeen();
}
+ AttachmentItem getVisibleAttachment() {
+ return attachments.get(viewPager.getCurrentItem());
+ }
+
+ private class ImagePagerAdapter extends FragmentStatePagerAdapter {
+
+ private ImagePagerAdapter(FragmentManager fm) {
+ super(fm);
+ }
+
+ @Override
+ public Fragment getItem(int position) {
+ return ImageFragment.newInstance(attachments.get(position));
+ }
+
+ @Override
+ public int getCount() {
+ return attachments.size();
+ }
+
+ }
+
}
diff --git a/briar-android/src/main/java/org/briarproject/briar/android/conversation/ImageFragment.java b/briar-android/src/main/java/org/briarproject/briar/android/conversation/ImageFragment.java
new file mode 100644
index 0000000000000000000000000000000000000000..ba4bfec9c4a2afa6424f2903b0bf60165ca2e79c
--- /dev/null
+++ b/briar-android/src/main/java/org/briarproject/briar/android/conversation/ImageFragment.java
@@ -0,0 +1,125 @@
+package org.briarproject.briar.android.conversation;
+
+import android.arch.lifecycle.ViewModelProvider;
+import android.arch.lifecycle.ViewModelProviders;
+import android.graphics.drawable.Animatable;
+import android.graphics.drawable.Drawable;
+import android.os.Bundle;
+import android.support.annotation.Nullable;
+import android.support.v4.app.Fragment;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+
+import com.bumptech.glide.load.DataSource;
+import com.bumptech.glide.load.engine.GlideException;
+import com.bumptech.glide.request.RequestListener;
+import com.bumptech.glide.request.target.Target;
+import com.github.chrisbanes.photoview.PhotoView;
+
+import org.briarproject.bramble.api.nullsafety.MethodsNotNullByDefault;
+import org.briarproject.briar.R;
+import org.briarproject.briar.android.activity.BaseActivity;
+import org.briarproject.briar.android.conversation.glide.GlideApp;
+
+import javax.annotation.ParametersAreNonnullByDefault;
+import javax.inject.Inject;
+
+import static android.os.Build.VERSION.SDK_INT;
+import static android.widget.ImageView.ScaleType.FIT_START;
+import static com.bumptech.glide.load.engine.DiskCacheStrategy.NONE;
+import static org.briarproject.bramble.api.nullsafety.NullSafety.requireNonNull;
+import static org.briarproject.briar.android.conversation.ImageActivity.ATTACHMENT_POSITION;
+
+@MethodsNotNullByDefault
+@ParametersAreNonnullByDefault
+public class ImageFragment extends Fragment {
+
+ @Inject
+ ViewModelProvider.Factory viewModelFactory;
+
+ private AttachmentItem attachment;
+ private ImageViewModel viewModel;
+ private PhotoView photoView;
+
+ static ImageFragment newInstance(AttachmentItem a) {
+ ImageFragment f = new ImageFragment();
+ Bundle args = new Bundle();
+ args.putParcelable(ATTACHMENT_POSITION, a);
+ f.setArguments(args);
+ return f;
+ }
+
+ @Override
+ public void onActivityCreated(@Nullable Bundle savedInstanceState) {
+ super.onActivityCreated(savedInstanceState);
+ BaseActivity a = (BaseActivity) requireNonNull(getActivity());
+ a.getActivityComponent().inject(this);
+ }
+
+ @Override
+ public void onCreate(@Nullable Bundle savedInstanceState) {
+ super.onCreate(savedInstanceState);
+
+ Bundle args = requireNonNull(getArguments());
+ attachment = requireNonNull(args.getParcelable(ATTACHMENT_POSITION));
+ }
+
+ @Nullable
+ @Override
+ public View onCreateView(LayoutInflater inflater,
+ @Nullable ViewGroup container,
+ @Nullable Bundle savedInstanceState) {
+ View v = inflater.inflate(R.layout.fragment_image, container,
+ false);
+
+ viewModel = ViewModelProviders.of(requireNonNull(getActivity()),
+ viewModelFactory).get(ImageViewModel.class);
+
+ photoView = v.findViewById(R.id.photoView);
+ photoView.setOnClickListener(view -> viewModel.clickImage());
+
+ // Request Listener
+ RequestListener<Drawable> listener = new RequestListener<Drawable>() {
+ @Override
+ public boolean onLoadFailed(@Nullable GlideException e,
+ Object model, Target<Drawable> target,
+ boolean isFirstResource) {
+ if (getActivity() != null)
+ getActivity().supportStartPostponedEnterTransition();
+ return false;
+ }
+
+ @Override
+ public boolean onResourceReady(Drawable resource, Object model,
+ Target<Drawable> target, DataSource dataSource,
+ boolean isFirstResource) {
+ if (SDK_INT >= 21 && !(resource instanceof Animatable)) {
+ // set transition name only when not animatable,
+ // because the animation won't start otherwise
+ photoView.setTransitionName(
+ attachment.getTransitionName());
+ }
+ // Move image to the top if overlapping toolbar
+ if (viewModel.isOverlappingToolbar(photoView, resource)) {
+ photoView.setScaleType(FIT_START);
+ }
+ if (getActivity() != null)
+ getActivity().supportStartPostponedEnterTransition();
+ return false;
+ }
+ };
+
+ // Load Image
+ GlideApp.with(this)
+ .load(attachment)
+ .diskCacheStrategy(NONE)
+ .error(R.drawable.ic_image_broken)
+ .dontTransform()
+ .addListener(listener)
+ .into(photoView);
+
+ return v;
+ }
+
+}
diff --git a/briar-android/src/main/java/org/briarproject/briar/android/conversation/ImageViewModel.java b/briar-android/src/main/java/org/briarproject/briar/android/conversation/ImageViewModel.java
index d3cc620196f439edd1dfb3e576902440b8d0f5c5..fc5b6cdff0b68fce022962a0c05ad2d33263dcd4 100644
--- a/briar-android/src/main/java/org/briarproject/briar/android/conversation/ImageViewModel.java
+++ b/briar-android/src/main/java/org/briarproject/briar/android/conversation/ImageViewModel.java
@@ -4,9 +4,11 @@ import android.app.Application;
import android.arch.lifecycle.AndroidViewModel;
import android.arch.lifecycle.LiveData;
import android.arch.lifecycle.MutableLiveData;
+import android.graphics.drawable.Drawable;
import android.net.Uri;
import android.support.annotation.Nullable;
import android.support.annotation.UiThread;
+import android.view.View;
import org.briarproject.bramble.api.db.DatabaseExecutor;
import org.briarproject.bramble.api.db.DbException;
@@ -48,7 +50,10 @@ public class ImageViewModel extends AndroidViewModel {
@IoExecutor
private final Executor ioExecutor;
+ private final MutableLiveData<Boolean> imageClicked =
+ new MutableLiveData<>();
private final MutableLiveData<Boolean> saveState = new MutableLiveData<>();
+ private int toolbarTop, toolbarBottom;
@Inject
ImageViewModel(Application application,
@@ -61,6 +66,45 @@ public class ImageViewModel extends AndroidViewModel {
this.ioExecutor = ioExecutor;
}
+ void clickImage() {
+ imageClicked.setValue(true);
+ }
+
+ /**
+ * A LiveData that is true if the image was clicked,
+ * false if it wasn't.
+ *
+ * Call {@link #onOnImageClickSeen()} after consuming an update.
+ */
+ LiveData<Boolean> getOnImageClicked() {
+ return imageClicked;
+ }
+
+ @UiThread
+ void onOnImageClickSeen() {
+ imageClicked.setValue(false);
+ }
+
+ void setToolbarPosition(int top, int bottom) {
+ toolbarTop = top;
+ toolbarBottom = bottom;
+ }
+
+ boolean isOverlappingToolbar(View screenView, Drawable drawable) {
+ int width = drawable.getIntrinsicWidth();
+ int height = drawable.getIntrinsicHeight();
+ float widthPercentage = screenView.getWidth() / (float) width;
+ float heightPercentage = screenView.getHeight() / (float) height;
+ float scaleFactor = Math.min(widthPercentage, heightPercentage);
+ int realWidth = (int) (width * scaleFactor);
+ int realHeight = (int) (height * scaleFactor);
+ // return if image doesn't use the full width,
+ // because it will be moved to the right otherwise
+ if (realWidth < screenView.getWidth()) return false;
+ int drawableTop = (screenView.getHeight() - realHeight) / 2;
+ return drawableTop < toolbarBottom && drawableTop != toolbarTop;
+ }
+
/**
* A LiveData that is true if the image was saved,
* false if there was an error and null otherwise.
diff --git a/briar-android/src/main/res/layout/activity_image.xml b/briar-android/src/main/res/layout/activity_image.xml
index df81ce2e27d0552024c786a7674dcf0edd568871..84f786f493e89279326262f30b3f3fd9486c4da0 100644
--- a/briar-android/src/main/res/layout/activity_image.xml
+++ b/briar-android/src/main/res/layout/activity_image.xml
@@ -8,12 +8,11 @@
android:background="@color/briar_black"
tools:context=".android.conversation.ImageActivity">
- <com.github.chrisbanes.photoview.PhotoView
- android:id="@+id/photoView"
+ <android.support.v4.view.ViewPager
+ android:id="@+id/viewPager"
android:layout_width="match_parent"
android:layout_height="match_parent"
- tools:ignore="ContentDescription"
- tools:srcCompat="@tools:sample/backgrounds/scenic"/>
+ tools:background="@color/briar_green_light"/>
<android.support.design.widget.AppBarLayout
android:id="@+id/appBarLayout"
diff --git a/briar-android/src/main/res/layout/fragment_image.xml b/briar-android/src/main/res/layout/fragment_image.xml
new file mode 100644
index 0000000000000000000000000000000000000000..2da926ea9750e39cf5d8945893aa0e63b129feb7
--- /dev/null
+++ b/briar-android/src/main/res/layout/fragment_image.xml
@@ -0,0 +1,9 @@
+<?xml version="1.0" encoding="utf-8"?>
+<com.github.chrisbanes.photoview.PhotoView
+ android:id="@+id/photoView"
+ xmlns:android="http://schemas.android.com/apk/res/android"
+ xmlns:tools="http://schemas.android.com/tools"
+ android:layout_width="match_parent"
+ android:layout_height="match_parent"
+ tools:ignore="ContentDescription"
+ tools:srcCompat="@tools:sample/backgrounds/scenic"/>