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Code Issues Projects Releases Wiki Activity

[android] allow to attach multiple images

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This commit is contained in:
Torsten Grote
2018-12-12 19:21:41 -02:00
parent 684c64a1d9
commit f14e546dc6
7 changed files with 225 additions and 65 deletions
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74
briar-android/src/main/java/org/briarproject/briar/android/view/ImagePreview.java
View File

@@ -1,43 +1,27 @@
package org.briarproject.briar.android.view;
import android.content.Context;
import android.graphics.Bitmap;
import android.net.Uri;
import android.support.annotation.Nullable;
import android.support.constraint.ConstraintLayout;
import android.support.v7.graphics.Palette;
import android.support.v7.widget.RecyclerView;
import android.util.AttributeSet;
import android.view.LayoutInflater;
import android.widget.ImageView;
import android.widget.Toast;
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 org.briarproject.bramble.api.nullsafety.NotNullByDefault;
import org.briarproject.briar.R;
import org.briarproject.briar.android.conversation.glide.GlideApp;
import java.util.List;
import static android.content.Context.LAYOUT_INFLATER_SERVICE;
import static android.graphics.Color.BLACK;
import static android.graphics.Color.WHITE;
import static android.support.v7.app.AppCompatDelegate.MODE_NIGHT_YES;
import static android.support.v7.app.AppCompatDelegate.getDefaultNightMode;
import static android.widget.Toast.LENGTH_LONG;
import static com.bumptech.glide.load.engine.DiskCacheStrategy.NONE;
import static com.bumptech.glide.load.resource.bitmap.DownsampleStrategy.FIT_CENTER;
import static android.support.v4.content.ContextCompat.getColor;
import static android.view.ViewGroup.LayoutParams.MATCH_PARENT;
import static java.util.Objects.requireNonNull;
@NotNullByDefault
public class ImagePreview extends ConstraintLayout {
private final ImageView imageView;
private final int backgroundColor =
getDefaultNightMode() == MODE_NIGHT_YES ? BLACK : WHITE;
private final RecyclerView imageList;
@Nullable
private ImagePreviewListener listener;
@@ -59,9 +43,11 @@ public class ImagePreview extends ConstraintLayout {
context.getSystemService(LAYOUT_INFLATER_SERVICE));
inflater.inflate(R.layout.image_preview, this, true);
// find image view and set background color
imageView = findViewById(R.id.imageView);
imageView.setBackgroundColor(backgroundColor);
// set background color
setBackgroundColor(getColor(context, R.color.card_background));
// find list
imageList = findViewById(R.id.imageList);
// set cancel listener
findViewById(R.id.imageCancelButton).setOnClickListener(view -> {
@@ -74,42 +60,14 @@ public class ImagePreview extends ConstraintLayout {
}
void showPreview(List<Uri> imageUris) {
if (listener == null) throw new IllegalStateException();
if (imageUris.size() == 1) {
LayoutParams params = (LayoutParams) imageList.getLayoutParams();
params.width = MATCH_PARENT;
imageList.setLayoutParams(params);
}
setVisibility(VISIBLE);
GlideApp.with(imageView)
.asBitmap()
.load(imageUris.get(0)) // TODO show more than the first
.diskCacheStrategy(NONE)
.downsample(FIT_CENTER)
.addListener(new RequestListener<Bitmap>() {
@Override
public boolean onLoadFailed(@Nullable GlideException e,
Object model, Target<Bitmap> target,
boolean isFirstResource) {
if (listener != null) listener.onCancel();
Toast.makeText(imageView.getContext(),
R.string.image_attach_error, LENGTH_LONG)
.show();
return false;
}
@Override
public boolean onResourceReady(Bitmap resource,
Object model, Target<Bitmap> target,
DataSource dataSource, boolean isFirstResource) {
Palette.from(resource).generate(
ImagePreview.this::onPaletteGenerated);
return false;
}
})
.into(imageView);
}
void onPaletteGenerated(@Nullable Palette palette) {
if (palette == null) return;
int color = getDefaultNightMode() == MODE_NIGHT_YES ?
palette.getDarkMutedColor(backgroundColor) :
palette.getLightMutedColor(backgroundColor);
imageView.setBackgroundColor(color);
imageList.setAdapter(new ImagePreviewAdapter(imageUris, listener));
}
interface ImagePreviewListener {

52
briar-android/src/main/java/org/briarproject/briar/android/view/ImagePreviewAdapter.java Normal file
View File

@@ -0,0 +1,52 @@
package org.briarproject.briar.android.view;
import android.net.Uri;
import android.support.annotation.LayoutRes;
import android.support.v7.widget.RecyclerView.Adapter;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import org.briarproject.bramble.api.nullsafety.NotNullByDefault;
import org.briarproject.briar.R;
import org.briarproject.briar.android.view.ImagePreview.ImagePreviewListener;
import java.util.List;
import static java.util.Objects.requireNonNull;
@NotNullByDefault
class ImagePreviewAdapter extends Adapter<ImagePreviewViewHolder> {
private final List<Uri> items;
private final ImagePreviewListener listener;
@LayoutRes
private final int layout;
public ImagePreviewAdapter(List<Uri> items, ImagePreviewListener listener) {
this.items = items;
this.listener = listener;
this.layout = items.size() == 1 ?
R.layout.list_item_image_preview_single :
R.layout.list_item_image_preview;
}
@Override
public ImagePreviewViewHolder onCreateViewHolder(ViewGroup viewGroup, int type) {
View v = LayoutInflater.from(viewGroup.getContext())
.inflate(layout, viewGroup, false);
return new ImagePreviewViewHolder(v, items.size() == 1,
requireNonNull(listener));
}
@Override
public void onBindViewHolder(ImagePreviewViewHolder viewHolder, int position) {
viewHolder.bind(items.get(position));
}
@Override
public int getItemCount() {
return items.size();
}
}

81
briar-android/src/main/java/org/briarproject/briar/android/view/ImagePreviewViewHolder.java Normal file
View File

@@ -0,0 +1,81 @@
package org.briarproject.briar.android.view;
import android.graphics.drawable.Drawable;
import android.net.Uri;
import android.support.annotation.DrawableRes;
import android.support.annotation.Nullable;
import android.support.v7.widget.RecyclerView.ViewHolder;
import android.view.View;
import android.widget.ImageView;
import android.widget.ProgressBar;
import android.widget.Toast;
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 org.briarproject.bramble.api.nullsafety.NotNullByDefault;
import org.briarproject.briar.R;
import org.briarproject.briar.android.conversation.glide.GlideApp;
import org.briarproject.briar.android.view.ImagePreview.ImagePreviewListener;
import static android.view.View.INVISIBLE;
import static android.widget.Toast.LENGTH_LONG;
import static com.bumptech.glide.load.engine.DiskCacheStrategy.NONE;
import static com.bumptech.glide.load.resource.bitmap.DownsampleStrategy.FIT_CENTER;
import static com.bumptech.glide.load.resource.drawable.DrawableTransitionOptions.withCrossFade;
@NotNullByDefault
class ImagePreviewViewHolder extends ViewHolder {
@DrawableRes
private static final int ERROR_RES = R.drawable.ic_image_broken;
private final boolean single;
private final ImagePreviewListener listener;
private final ImageView imageView;
private final ProgressBar progressBar;
ImagePreviewViewHolder(View v, boolean single,
ImagePreviewListener listener) {
super(v);
this.single = single;
this.listener = listener;
this.imageView = v.findViewById(R.id.imageView);
this.progressBar = v.findViewById(R.id.progressBar);
}
void bind(Uri uri) {
GlideApp.with(imageView)
.load(uri)
.diskCacheStrategy(NONE)
.error(ERROR_RES)
.downsample(FIT_CENTER)
.transition(withCrossFade())
.addListener(new RequestListener<Drawable>() {
@Override
public boolean onLoadFailed(@Nullable GlideException e,
Object model, Target<Drawable> target,
boolean isFirstResource) {
if (single) listener.onCancel();
progressBar.setVisibility(INVISIBLE);
Toast.makeText(imageView.getContext(),
R.string.image_attach_error, LENGTH_LONG)
.show();
return false;
}
@Override
public boolean onResourceReady(Drawable resource,
Object model, Target<Drawable> target,
DataSource dataSource, boolean isFirstResource) {
progressBar.setVisibility(INVISIBLE);
return false;
}
})
.into(imageView);
}
}

3
briar-android/src/main/java/org/briarproject/briar/android/view/TextAttachmentController.java
View File

@@ -81,8 +81,7 @@ public class TextAttachmentController extends TextSendController
ACTION_OPEN_DOCUMENT : ACTION_GET_CONTENT);
intent.addCategory(CATEGORY_OPENABLE);
intent.setType("image/*");
if (SDK_INT >= 18) // TODO set true to allow attaching multiple images
intent.putExtra(EXTRA_ALLOW_MULTIPLE, false);
if (SDK_INT >= 18) intent.putExtra(EXTRA_ALLOW_MULTIPLE, true);
requireNonNull(imageListener).onAttachImage(intent);
}

12
briar-android/src/main/res/layout/image_preview.xml
View File

@@ -13,21 +13,23 @@
android:id="@+id/divider"
style="@style/Divider.Horizontal"
android:layout_alignParentTop="true"
app:layout_constraintBottom_toTopOf="@+id/imageView"
app:layout_constraintBottom_toTopOf="@+id/imageList"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"/>
<ImageView
android:id="@+id/imageView"
android:layout_width="match_parent"
<android.support.v7.widget.RecyclerView
android:id="@+id/imageList"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:orientation="horizontal"
app:layoutManager="android.support.v7.widget.LinearLayoutManager"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="@+id/divider"
tools:ignore="ContentDescription"
tools:srcCompat="@tools:sample/avatars"/>
tools:listitem="@layout/list_item_image"/>
<android.support.design.widget.FloatingActionButton
android:id="@+id/imageCancelButton"

35
briar-android/src/main/res/layout/list_item_image_preview.xml Normal file
View File

@@ -0,0 +1,35 @@
<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.ConstraintLayout
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="wrap_content"
android:layout_height="match_parent"
tools:layout_height="200dp">
<ProgressBar
android:id="@+id/progressBar"
style="?android:attr/progressBarStyleLarge"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_margin="16dp"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"/>
<ImageView
android:id="@+id/imageView"
android:layout_width="0dp"
android:layout_height="match_parent"
android:scaleType="centerCrop"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintDimensionRatio="1:1"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"
tools:ignore="ContentDescription"
tools:srcCompat="@tools:sample/avatars"
tools:visibility="visible"/>
</android.support.constraint.ConstraintLayout>

33
briar-android/src/main/res/layout/list_item_image_preview_single.xml Normal file
View File

@@ -0,0 +1,33 @@
<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.ConstraintLayout
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"
tools:layout_height="200dp">
<ProgressBar
android:id="@+id/progressBar"
style="?android:attr/progressBarStyleLarge"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_margin="16dp"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"/>
<ImageView
android:id="@+id/imageView"
android:layout_width="0dp"
android:layout_height="0dp"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"
tools:ignore="ContentDescription"
tools:srcCompat="@tools:sample/backgrounds/scenic"
tools:visibility="visible"/>
</android.support.constraint.ConstraintLayout>