文档中心

创建字幕控制器

• 创建字幕控制器，使用字幕相关功能，需要创建字幕轨并添加到媒体轨道中心，并创建一个字幕片段，配合字幕UI逻辑使用，详见智能小视频源码,涉及组件BDHKVlogSubtitlesView(字幕位置)，BDMVSubtitleInputAccessoryView(字幕输入框)，BDMVInputEventBottomBar(字幕确认框)
• 代码示例如下：

//创建字幕控制器
		        mUgcSubtitleEditController = new UgcSubtitleEditController(this,

 mUgcPreViewFrameLayout, mVideoView);
        mUgcSubtitleEditController.setUgcVideoPreviewActivity(this);
        mUgcSubtitleEditController.setSubtitleEditControllerListener(
                new UgcSubtitleEditController.SubtitleEditControllerListener() {
                    @Override
                    public List<MultiMediaData> getDataList() {
                        return mDataSourceList;
                    }

                    @Override
                    public void updateSubtitleList(List<SubTitleUnit> subTitleUnits) {
                        if (mVlogEditManager != null) {
                            mVlogEditManager.setSubtitle(subTitleUnits);
                        }
                        if (mAEffectProcessor != null) {
                            mAEffectProcessor.changeEffect(mVlogEditManager.getShaderConfigMap(),
                                    mVlogEditManager.getUpdateMediaTracks());
                        }
                        if (mUgcSubtitleEditController != null) {
                            mUgcSubtitleEditController.changeSubtitleIcon(!ListUtils.isEmpty(subTitleUnits));
                        }
                    }

                    @Override
                    public String getThemeId() {
                        return "";
                    }

                    @Override
                    public void updateSubtitleConfig(SubTitleConfig subTitleConfig) {
                        if (mVlogEditManager != null) {
                            mVlogEditManager.setSubtitleConfig(subTitleConfig);
                        }

                        VideoDraftBean videoDraftBeanDb = getVideoDraftBeanDb();
                        if (videoDraftBeanDb != null) {
                            videoDraftBeanDb.setVideoSubtitleConfig(SubTitleConfig.beanToJson(subTitleConfig));
                            CurrentVideoBeanManager.updateVideoDraftBean(videoDraftBeanDb);
                        }
                    }

                    @Override
                    public void setIsNeedPauseWhenEdit(boolean isNeedPauseWhenEdit) {
                        mIsNeedPauseWhenEdit = isNeedPauseWhenEdit;
                    }
                    
                    @Override
                    public void saveSubtitleDraft(List<SubTitleUnit> subTitleUnits) {
                        VideoDraftBean videoDraftBeanDb = getVideoDraftBeanDb();
                        if (videoDraftBeanDb != null) {
                            videoDraftBeanDb.setVideoSubtitleData(SubTitleUnit.arrayToJson(subTitleUnits));
                            CurrentVideoBeanManager.updateVideoDraftBean(videoDraftBeanDb);
                        }
                    }

                    @Override
                    public void updateIsPauseByUser(boolean isPauseByUser) {
                        mIsPausePlayByUser = isPauseByUser;
                        if (mIsPausePlayByUser) {
                            if (mVlogEditManager != null) {
                                mVlogEditManager.pause();
                            }
                            if (mPreviewMusicPlayer != null) {
                                mPreviewMusicPlayer.onPause();
                            }
                        }
                    }
                });

设置字幕画面位置

• 设置字幕画面位置，可以调整字幕轨道上某个字幕的显示位置
• 代码示例如下：

private void inflateDragSubtitleLayout() {
        if (mDragSubtitleViewStub == null) {
            return;
        }
        mDragSubtitleLayout = (DragSubtitleLayout) mDragSubtitleViewStub.inflate();
        mDragSubtitleLayout.setOnDragItemClickListener(this);
        mDragSubtitleViewStub = null;
        if (mSubTitleConfig != null) {
            mDragSubtitleLayout.setSubtitleConfig(mSubTitleConfig);
        }
        mDragSubtitleLayout.setOnDragItemMovedListener(new DragSubtitleLayout.OnDragItemMovedListener() {
            @Override
            public void onDragItemMoved() {
                mIsChangeSubtile = true;
            }
        });
        mDragSubtitleLayout.setOnCancelFocusManuallyListener(new DragSubtitleLayout.OnCancelFocusManuallyListener() {
            @Override
            public void onCancelFocusManually(SubTitleUnit subTitleUnit) {
                if (mSubtitleEditLayout != null && mSubtitleEditLayout.getVideoShaft() != null
                        && mIPlayerDataSource != null) {
                    mSubtitleEditLayout.getVideoShaft().clearSelectState();
                }
            }
        });