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Code Issues Projects Releases Wiki Activity

[android] Move image to the top if it is overlapping the toolbar

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This commit is contained in:
Torsten Grote
2018-11-29 19:12:38 -02:00
parent 7b22d3b84d
commit 8a4a343147
1 changed files with 27 additions and 6 deletions
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33
briar-android/src/main/java/org/briarproject/briar/android/conversation/ImageActivity.java
View File

@@ -34,6 +34,7 @@ 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.util.UiUtils.formatDateAbsolute;
@@ -47,6 +48,7 @@ public class ImageActivity extends BriarActivity
private PullDownLayout layout;
private AppBarLayout appBarLayout;
private PhotoView photoView;
@Override
public void injectActivity(ActivityComponent component) {
@@ -94,7 +96,7 @@ public class ImageActivity extends BriarActivity
dateView.setText(date);
// Image View
PhotoView photoView = findViewById(R.id.photoView);
photoView = findViewById(R.id.photoView);
if (SDK_INT >= 16) {
photoView.setOnClickListener(view -> toggleSystemUi());
window.getDecorView().setSystemUiVisibility(
@@ -113,16 +115,19 @@ public class ImageActivity extends BriarActivity
}
@Override
public boolean onResourceReady(Drawable resource,
Object model, Target<Drawable> target,
DataSource dataSource, boolean isFirstResource) {
if (SDK_INT >= 21 &&
!(resource instanceof Animatable)) {
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;
}
@@ -209,4 +214,20 @@ 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();
}
}