获取本地音视频文件

it2026-02-24 10

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// 获取本地音频 public static void openAudioManager(Context context) { PermissionUtils.WriteStoragePermissionRequest(context); Intent mIntent = new Intent(Intent.ACTION_GET_CONTENT); //系统调用Action属性 mIntent.setType("audio/*"); //设置文件类型 mIntent.setType("*/*"); mIntent.addCategory(Intent.CATEGORY_OPENABLE); // 用来指示一个ACTION_GET_CONTENT 的intent ProjectApplication.activity.startActivityForResult(mIntent, Config.LOCAL_AUDIO_FOR_REQUEST_CODE); } // 获取本地视频 public static void openVideoManager(Context context){ PermissionUtils.WriteStoragePermissionRequest(context); Intent intent=new Intent(Intent.ACTION_GET_CONTENT); intent.setType("video/*"); intent.addCategory(Intent.CATEGORY_OPENABLE); ProjectApplication.activity.startActivityForResult(intent,Config.LOCAL_VIDEO_FOR_REQUEST_CODE); } // 获取本地联系人 public static void openConnectManager(Context context){ Intent intent = new Intent(Intent.ACTION_PICK); intent.setType(ContactsContract.Contacts.CONTENT_TYPE); ProjectApplication.activity.startActivityForResult(intent, PICK_CONTACT); } // 调用图库，获取所有本地图片 public static void openImgManager(Context context){ Intent imageIntent = new Intent(Intent.ACTION_GET_CONTENT); imageIntent.setType("image/*"); ProjectApplication.activity.startActivityForResult(imageIntent, PICK_IMAGE); }

获取权限

PermissionUtils获取权限

public static final int PERMISSION_REQUEST_CODE = 0x00123; public static boolean WriteStoragePermissionRequest(Context context) { String permissions[] = { Manifest.permission.READ_EXTERNAL_STORAGE, Manifest.permission.WRITE_EXTERNAL_STORAGE }; ArrayList<String> toApplyList = PermissionRequest(context, permissions); return toApplyList.size() != 0; } private static ArrayList<String> PermissionRequest(Context context, String[] permissions) { ArrayList<String> toApplyList = new ArrayList<>(); for (String perm : permissions) { if (PackageManager.PERMISSION_GRANTED != ContextCompat.checkSelfPermission(context, perm)) { toApplyList.add(perm); // 进入到这里代表没有权限. Log.d(TAG, " -=- initPermission: 没有权限，添加到集合并申请:" + perm); } } String tmpList[] = toApplyList.toArray(new String[toApplyList.size()]); if (!toApplyList.isEmpty()) { ActivityCompat.requestPermissions(ProjectApplication.activity, tmpList, PERMISSION_REQUEST_CODE); } return toApplyList; }

回传文件

新建回调工具类

负责回传拿到的信息，并在不同界面进行UI更新

public interface VideoCallBack { void getVideo(boolean isSuccess, String path); } public class VideoCallBackUtil { public static VideoCallBack videoCallBack; public static VideoRecordCallBack videoRecordCallBack; public static void setVideoCallBack(VideoCallBack callBack) { videoCallBack = callBack; } public static void setVideoRecordCallBack(VideoRecordCallBack callBack) { videoRecordCallBack = callBack; } }

回传本地数据

在MainActivity中拿到回传本地数据（音视频、图片等）

@Override protected void onActivityResult(int requestCode, int resultCode, Intent data) { super.onActivityResult(requestCode, resultCode, data); Log.d(TAG, " -=-=- onActivityResult()" + " requestCode:" + requestCode + " resultCode:" + resultCode + " data:" + data); switch (requestCode) { case Config.LOCAL_AUDIO_FOR_REQUEST_CODE: // 本地音频数据，Activity回调 if (resultCode == RESULT_OK) { AudioCallBackUtil.audioCallBack.getAudio(true, FilePathUtils.getFilePath(this, data.getData())); } else { AudioCallBackUtil.audioCallBack.getAudio(false, null); } break; case Config.LOCAL_VIDEO_FOR_REQUEST_CODE: // 本地视频数据，Activity回调 if (resultCode == RESULT_OK) { VideoCallBackUtil.videoCallBack.getVideo(true, FilePathUtils.getFilePath(this, data.getData())); } else { VideoCallBackUtil.videoCallBack.getVideo(false, null); } break; case Config.VIDEO_RECORD_FOR_REQUEST_CODE: // 录制视频，Activity回调 if (resultCode == RESULT_OK) { VideoCallBackUtil.videoRecordCallBack.getRecordVideo(true, FilePathUtils.getFilePath(this, data.getData())); } else { VideoCallBackUtil.videoRecordCallBack.getRecordVideo(false, null); } break; } }

回传数据UI更新

在界面将回传的数据做UI更新

@Override public void onClick(View v) { switch (v.getId()) { case R.id.cb_scene_rescue_local_video: readLocalVideoFile(); changeRescueContentCheckBox(); break; case R.id.cb_scene_rescue_local_audio: readLocalAudioFile(); changeRescueContentCheckBox(); break; ... } } private void readLocalAudioFile(){ Utils.openAudioManager(getContext()); AudioCallBackUtil.setAudioCallBack((isSuccess, path) -> { Log.d(TAG, "onClick local audio, path: " + path); if (isSuccess) { isLocalAudio = true; rescueContentAdapter.addFileItem(new MultipleFileEntity(Config.LOCAL_AUDIO_RESOURCE, new File(path))); changeRescueContentCheckBox(); rvRescueInformList.setVisibility(View.VISIBLE); Log.d(TAG, "setAudioCallBack() isSuccess:" + isSuccess + " path:" + path); } else { Log.d(TAG, "onClick local audio failure"); } changeRescueContentCheckBox(); }); } private void readLocalVideoFile(){ Utils.openVideoManager(getContext()); VideoCallBackUtil.setVideoCallBack(((isSuccess, path) -> { Log.d(TAG, "onClick local video, path:" + path); if (isSuccess) { isLocalVideo = true; rescueContentAdapter.addFileItem(new MultipleFileEntity(Config.LOCAL_VIDEO_RESOURCE, new File(path))); changeRescueContentCheckBox(); rvRescueInformList.setVisibility(View.VISIBLE); Log.d(TAG, "setVideoCallBack() isSuccess:" + isSuccess + " path:" + path); } else { Log.d(TAG, "onClick local video failure"); } changeRescueContentCheckBox(); })); } private void changeRescueContentCheckBox() { cbSceneRescueText.setChecked(isText && rescueContentAdapter.containTxtFile()); cbSceneRescueAudio.setChecked(isAudio && rescueContentAdapter.containAudioFile()); cbSceneRescueLocalAudio.setChecked(isLocalAudio && rescueContentAdapter.containsLocalAudioFile()); cbSceneRescueLocalVideo.setChecked(isLocalVideo && rescueContentAdapter.containsLocalVideoFile()); cbSceneRescueVideo.setChecked(isVideo && rescueContentAdapter.containsVideoFile()); }

获取文件路径

因为onActivityResult返回data返回的是一串url，所以需要获取文件路径，才能拿到本地文件。

public static String getFilePath(Context context,Uri uri) { if ("file".equalsIgnoreCase(uri.getScheme())) { // 使用第三方应用打开 return uri.getPath(); } else if (uri.getPath().contains("document") && uri.getPath().contains("/storage/emulated/0/")) { return uri.getPath().split(":")[1]; } if (Build.VERSION.SDK_INT > Build.VERSION_CODES.KITKAT) { // 4.4以后 return getPath(context, uri); } else { // 4.4以下下系统调用方法 return getRealPathFromURI(context, uri); } } public static String getPath(final Context context, final Uri uri) { final boolean isKitKat = Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT; // DocumentProvider if (isKitKat && DocumentsContract.isDocumentUri(context, uri)) { // ExternalStorageProvider if (isExternalStorageDocument(uri)) { final String docId = DocumentsContract.getDocumentId(uri); final String[] split = docId.split(":"); final String type = split[0]; if ("primary".equalsIgnoreCase(type)) { return Environment.getExternalStorageDirectory() + "/" + split[1]; } } // DownloadsProvider else if (isDownloadsDocument(uri)) { final String id = DocumentsContract.getDocumentId(uri); final Uri contentUri = ContentUris.withAppendedId( Uri.parse("content://downloads/public_downloads"), Long.valueOf(id)); return getDataColumn(context, contentUri, null, null); } // MediaProvider else if (isMediaDocument(uri)) { final String docId = DocumentsContract.getDocumentId(uri); final String[] split = docId.split(":"); final String type = split[0]; Uri contentUri = null; if ("image".equals(type)) { contentUri = MediaStore.Images.Media.EXTERNAL_CONTENT_URI; } else if ("video".equals(type)) { contentUri = MediaStore.Video.Media.EXTERNAL_CONTENT_URI; } else if ("audio".equals(type)) { contentUri = MediaStore.Audio.Media.EXTERNAL_CONTENT_URI; } final String selection = "_id=?"; final String[] selectionArgs = new String[]{split[1]}; return getDataColumn(context, contentUri, selection, selectionArgs); } } // MediaStore (and general) else if ("content".equalsIgnoreCase(uri.getScheme())) { return getDataColumn(context, uri, null, null); } // File else if ("file".equalsIgnoreCase(uri.getScheme())) { return uri.getPath(); } return null; } /** * Get the value of the data column for this Uri. This is useful for * MediaStore Uris, and other file-based ContentProviders. * * @param context The context. * @param uri The Uri to query. * @param selection (Optional) Filter used in the query. * @param selectionArgs (Optional) Selection arguments used in the query. * @return The value of the _data column, which is typically a file path. */ public static String getDataColumn(Context context, Uri uri, String selection, String[] selectionArgs) { Cursor cursor = null; final String column = "_data"; final String[] projection = {column}; try { // TODO 报错 cursor = context.getContentResolver().query(uri, projection, selection, selectionArgs, null); if (cursor != null && cursor.moveToFirst()) { final int column_index = cursor.getColumnIndexOrThrow(column); return cursor.getString(column_index); } } finally { if (cursor != null) cursor.close(); } return null; } /** * @param uri The Uri to check. * @return Whether the Uri authority is ExternalStorageProvider. */ private static boolean isExternalStorageDocument(Uri uri) { return "com.android.externalstorage.documents".equals(uri.getAuthority()); } /** * @param uri The Uri to check. * @return Whether the Uri authority is DownloadsProvider. */ private static boolean isDownloadsDocument(Uri uri) { return "com.android.providers.downloads.documents".equals(uri.getAuthority()); } /** * @param uri The Uri to check. * @return Whether the Uri authority is MediaProvider. */ private static boolean isMediaDocument(Uri uri) { return "com.android.providers.media.documents".equals(uri.getAuthority()); }

参考文章 Intent.ACTION_PICK和Intent.ACTION_GET_CONTENT 调用系统联系人；图片；音乐；视频；

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