TouchVGPlay Demo for Android

This is a unit test and example project for TouchVGPlay, which is a lightweight vector shape playing and animation framework based on TouchVG for Android.

API (rhcad.vgplay.PlayingHelper):

// 图形播放管理类: 每个绘图视图对象(IGraphView)可有一个 PlayingHelper 对象.
public class PlayingHelper {
    public static final int FRAMEFLAGS_DYN = 8;

    // 播放结束的通知
    public static interface OnPlayEndedListener {
        // 播放完成，待用户结束播放: 返回false表示不拦截，true表示暂停在最后一帧，
        // 后续由应用来调用 stopPlay()
        public boolean onPlayWillEnd(IGraphView view);

        // 播放结束，应用可更新界面布局、销毁附加的 extra 对象
        public void onPlayEnded(IGraphView view, int tag, Object extra);
    }

    // 播放源接口，由应用提供显示内容
    public static interface PlayProvider {
        // 向动态图形列表(hShapes)提供当前帧的图形内容.
        // 返回: 0表示当前时刻还没有新帧，负数表示播放结束，正数表示已填充当前帧图形
        public int provideFrame(IGraphView view, int tag, Object extra,
                                int hShapes, int tick, int lastTick);

        // 播放结束，应用可更新界面布局、销毁附加的 extra 对象
        public void onPlayEnded(IGraphView view, int tag, Object extra);
    }

    // 指定视图的构造函数，每个绘图视图对象可有一个 PlayingHelper 对象
    public PlayingHelper(IGraphView view);

    // 得到本库的版本号
    public static String getVersion();

    // 添加播放结束的观察者，在 startPlay() 和 stopPlay() 之间回调
    public void setOnPlayEndedListener(OnPlayEndedListener listener);

    // 停止所有播放项，包含 startPlay/startSyncPlay/addPlayProvider 对应项
    public void stop();

    // 开始播放指定的目录下录制的图形
    public boolean startPlay(String path);

    // 停止播放
    public void stopPlay();

    // 暂停播放
    public boolean playPause();

    // 继续播放
    public boolean playResume();

    // 返回已播放的相对毫秒数
    public int getPlayTicks();

    // 开始同步播放，待播放的图形将缓存在指定的目录
    public boolean startSyncPlay(int cid, String path);

    // 同步播放一帧，此帧(*.vgr)已缓存到指定的目录
    public void applySyncPlayFrame(int cid, int index);

    // 停止同步播放
    public void stopSyncPlay(int cid);

    // 停止所有同步播放
    public void stopSyncPlayings();

    // 添加播放源，可指定应用所需的附加对象
    public boolean addPlayProvider(PlayProvider p, int tag, Object extra);

    // 返回播放项的个数
    public int getPlayProviderCount();

    // 停止所有播放项
    public void stopProviders();
}

How to Compile

• Import and run the VGPlayTest project in eclipse.

  • Android SDK version of the projects may need to modify according to your installation.

  • Recommend using the newer ADT Bundle to avoid complex configuration.

How to Contribute

Contributors and sponsors are welcome. You may translate, commit issues or pull requests on this Github site. To contribute, please follow the branching model outlined here: A successful Git branching model.

License

This is an open source BSD licensed project. It uses the following open source projects:

• vgandroid (BSD): Vector drawing framework for Android.
• vgcore (BSD): Cross-platform vector drawing libraries using C++.
• TouchVGPlay (GPL): Shape playing and animation framework based on TouchVG.