在花时间使用Android设备管理器后,我找到了解决方案,如下所示:
如果文档类型ID不是主要的,则我使用以下方法创建路径:
filePath = "/storage/" + type + "/" + split[1]
编辑1: 如果是DocumentUri,则根据文件类型选择contentUri。
这是完整的函数:
public static String getRealPathFromURI_API19(Context context, Uri uri) {
String filePath = "";
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];
} else {
if (Build.VERSION.SDK_INT > 20) {
File extenal[] = context.getExternalMediaDirs();
for (File f : extenal) {
filePath = f.getAbsolutePath();
if (filePath.contains(type)) {
int endIndex = filePath.indexOf("Android");
filePath = filePath.substring(0, endIndex) + split[1];
}
}
}else{
filePath = "/storage/" + type + "/" + split[1];
}
return filePath;
}
} else if (isDownloadsDocument(uri)) {
final String id = DocumentsContract.getDocumentId(uri);
Cursor cursor = null;
final String column = "_data";
final String[] projection = {column};
try {
cursor = context.getContentResolver().query(uri, projection, null, null, null);
if (cursor != null && cursor.moveToFirst()) {
final int index = cursor.getColumnIndexOrThrow(column);
String result = cursor.getString(index);
cursor.close();
return result;
}
} finally {
if (cursor != null)
cursor.close();
}
} else if (DocumentsContract.isDocumentUri(context, uri)) {
String wholeID = DocumentsContract.getDocumentId(uri);
String[] ids = wholeID.split(":");
String id;
String type;
if (ids.length > 1) {
id = ids[1];
type = ids[0];
} else {
id = ids[0];
type = ids[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[]{id};
final String column = "_data";
final String[] projection = {column};
Cursor cursor = context.getContentResolver().query(contentUri,
projection, selection, selectionArgs, null);
if (cursor != null) {
int columnIndex = cursor.getColumnIndex(column);
if (cursor.moveToFirst()) {
filePath = cursor.getString(columnIndex);
}
cursor.close();
}
return filePath;
} else {
String[] proj = {MediaStore.Audio.Media.DATA};
Cursor cursor = context.getContentResolver().query(uri, proj, null, null, null);
if (cursor != null) {
int column_index = cursor.getColumnIndexOrThrow(MediaStore.Audio.Media.DATA);
if (cursor.moveToFirst())
filePath = cursor.getString(column_index);
cursor.close();
}
return filePath;
}
return null;
}
编辑2:对于像content://com.adobe.scan.android.documents/document/
这样的主机进行处理,请查看此处的代码here