PreviewSeekBar
A SeekBar suited for showing a preview of something. As seen in Google Play Movies.
Google Play Movies
PreviewSeekBar's sample
Build
Add the following to your app's build.gradle:
dependencies {
// Base implementation with a standard SeekBar
implementation 'com.github.rubensousa:previewseekbar:2.0.0'
// ExoPlayer extension that contains a TimeBar.
implementation 'com.github.rubensousa:previewseekbar-exoplayer:2.8.1.0'
}
If you're going to use this with ExoPlayer, you need both dependencies.
How to use
Add the following XML:
<FrameLayout
android:id="@+id/previewFrameLayout"
android:layout_width="@dimen/video_preview_width"
android:layout_height="@dimen/video_preview_height">
<ImageView
android:id="@+id/imageView"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="@color/colorPrimary" />
</FrameLayout>
<com.github.rubensousa.previewseekbar.PreviewSeekBar
android:id="@+id/previewSeekBar"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginTop="25dp"
android:max="800" />
Create a PreviewLoader and pass it to PreviewSeekBarLayout:
// Create a class that implements this interface and implement your own preview logic there
public interface PreviewLoader {
void loadPreview(long currentPosition, long max);
}
PreviewLoader loader = new ExoPlayerLoader();
previewSeekBarLayout.setup(loader);
How to use with ExoPlayer
Add a custom controller to your SimpleExoPlayerView
<com.google.android.exoplayer2.ui.SimpleExoPlayerView
android:id="@+id/player_view"
android:layout_width="match_parent"
android:layout_height="match_parent"
app:controller_layout_id="@layout/exoplayer_controls"/>
Here's the sample's exoplayer_controls: https://github.com/rubensousa/PreviewSeekBar/blob/master/sample/src/main/res/layout/exoplayer_controls.xml
The PreviewSeekBarLayout inside exoplayer_controls should be similar to this:
<FrameLayout
android:id="@+id/previewFrameLayout"
android:layout_width="@dimen/video_preview_width"
android:layout_height="@dimen/video_preview_height"
android:background="@drawable/video_frame"
android:padding="@dimen/video_frame_width">
<ImageView
android:id="@+id/imageView"
android:layout_width="match_parent"
android:layout_height="match_parent"/>
</FrameLayout>
<com.github.rubensousa.previewseekbar.exoplayer.PreviewTimeBar
android:id="@+id/exo_progress"
style="?android:attr/progressBarStyleHorizontal"
android:layout_width="match_parent"
android:layout_height="wrap_content"
app:previewFrameLayout="@id/previewFrameLayout"/>
Create your own ExoPlayerLoader that seeks the video to the current position
In this sample, Glide is used with a custom transformation to crop the thumbnails from a thumbnail sprite.
@Override
public void loadPreview(long currentPosition, long max) {
player.setPlayWhenReady(false);
GlideApp.with(imageView)
.load(thumbnailsUrl)
.override(GlideThumbnailTransformation.IMAGE_WIDTH,
GlideThumbnailTransformation.IMAGE_HEIGHT)
.transform(new GlideThumbnailTransformation(currentPosition))
.into(imageView);
}
License
Copyright 2017 The Android Open Source Project
Copyright 2017 Rúben Sousa
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.