Android Video Trimmer View

Note that this is only the PURE android view. Consider using ffmpeg to actually trim the video.

Import to your project

Add this to project level build.gradle

  allprojects {
    repositories {
        maven { url 'https://jitpack.io' }
    }
  }

And then in app level build.gradle

  implementation 'com.github.freddyfang:android-video-trimmer:v1.0.0'

How to Use

Layout xml

  <idv.luchafang.videotrimmer.VideoTrimmerView
        android:id="@+id/videoTrimmerView"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        app:vtv_window_bar_width="10dp"
        app:vtv_window_border_color="@android:color/white"
        app:vtv_window_border_width="2dp"
        app:vtv_window_left_bar="@drawable/trimmer_left_bar"
        app:vtv_window_right_bar="@drawable/trimmer_right_bar"/>

Display it

  videoTrimmerView
    .setVideo(File(path))
    .setMaxDuration(30_000)                   // millis
    .setMinDuration(3_000)                    // millis
    .setFrameCountInWindow(8)
    .setExtraDragSpace(10)                    // pixels
    .setOnSelectedRangeChangedListener(this)
    .show()

OnSelectedRangeChangedListener

  override fun onSelectRangeStart() {
    // Start to drag range bar or start to scroll the video frame list
  }

  override fun onSelectRange(startMillis: Long, endMillis: Long) {
    // Range is changing
  }

  override fun onSelectRangeEnd(startMillis: Long, endMillis: Long) {
    // Range selected, play the video here
  }

Also, you can save the current UI state by calling

  val draft = videoTrimmerView.getTrimmerDraft()
  // draft is a parcelable object

and restore it when necessary.

  videoTrimmerView.restoreTrimmer(draft)