Add this dependency in build.gradle:

compile 'cn.jzvd:jiaozivideoplayer:x.x.x'

For Android Studio 3+ the compile function has been deprecated. You should use implementation or api. Check the new dependency configurations in Android documentation for more details.

Changing the library or introducing other reference methods (such as jar, aar) is not recommended because updates to this library are done approximately every two weeks with bug fixes and new features. If you change the library locally, your update will be very problematic. The JZVideoPlayerStandard class can serve virtually any needs to change methods and user interface.

In your layout.xml file, add the cn.jzvd.JZVideoPlayerStandard view that represents the video player itself:

<cn.jzvd.JZVideoPlayerStandard
    android:id="@+id/videoplayer"
    android:layout_width="match_parent"
    android:layout_height="200dp"/>

You can change its height and width or define a specific aspect ratio. Regardless of the dimensions of this view, the image will be centered, but if the aspect ratio between video and view are different, there will be black borders.

To avoid this problem, you can programatically set the player to fit the dimensions of the view, but there will be some distortion in the image (it will be "stretched" or "cut" in some dimension).

Take a look at this activity in demo project for more details.

Get a VideoPlayer instance from your layout:

JZVideoPlayerStandard jzVideoPlayerStandard = 
            (JZVideoPlayerStandard) findViewById(R.id.videoplayer);

Initialize this instance passing 3 arguments:

• Video Url

• Player screen position: SCREEN_WINDOW_NORMAL, SCREEN_WINDOW_LIST, SCREEN_WINDOW_FULLSCREEN or SCREEN_WINDOW_TINY.

• Video title

The video title parameter is an Object... which stores other data that may be passed to VideoPlayer instance such as the amount of play, video classification information, etc.

jzVideoPlayerStandard.setUp("http://jzvd.nathen.cn/c6e3dc12a1154626b3476d9bf3bd7266/6b56c5f0dc31428083757a45764763b0-5287d2089db37e62345123a1be272f8b.mp4", 
                            JZVideoPlayerStandard.SCREEN_WINDOW_NORMAL, 
                            "Video title");

Set the video thumbnail. As imageView doesn't have setImage method, this pseudo-code function just represents your picture loading strategy which can use any common library as ImageLoader, Glide, Picasso.

jzVideoPlayerStandard
            .thumbImageView
            .setImage("http://p.qpic.cn/videoyun/0/2449_43b6f696980311e59ed467f22794e792_1/640");

Take a look at this activity in demo project for more details.

@Override
public void onBackPressed() {
    if (JZVideoPlayer.backPress()) {
        return;
    }
    super.onBackPressed();
}

@Override
protected void onPause() {
    super.onPause();
    JZVideoPlayer.releaseAllVideos();
}

The backPress method checks if back button was touched. If the videoPlayer was in fullscreen mode it will exit full screen playback. Otherwise it will close the activity.

When the activity's lifecycle enters onPause, it should call releaseAllVideos, because we set the video to be released when the user exits the current Activity or press the home button.

This code only needs to be used during the activity's lifecycle. If VideoPlayer is in a Fragment or ViewPager you don't need to overwrite the Fragment's onPause function. You only need to overwrite onPause and onBackPressed functions of the Activity that contains the Fragment that plays the control.

If you need the playback playing after you close activity, you can refer to this code given by a friend.

<activity
    android:name=".MainActivity"
    android:configChanges="orientation|screenSize|keyboardHidden"
    android:screenOrientation="portrait" />
    <!-- or android:screenOrientation="landscape"-->

android:configChanges avoids Activity lifecycle execution when rotating screen (which would interrupts video playback).

android:screenOrientation sets the initial screen orientation. It can be setted programatically using JZVideoPlayer.FULLSCREEN_ORIENTATION and JZVideoPlayer.NORMAL_ORIENTATION