工具类FileUtils ：

import android.annotation.SuppressLint;
import android.content.ContentUris;
import android.content.Context;
import android.database.Cursor;
import android.net.Uri;
import android.os.Environment;
import android.os.Build.VERSION;
import android.provider.DocumentsContract;
import android.provider.MediaStore.Images.Media;
import android.text.TextUtils;
import android.util.Log;
import androidx.annotation.NonNull;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.nio.channels.FileChannel;
import java.text.SimpleDateFormat;
import java.util.Locale;public class FileUtils {private static final String TAG = "FileUtils";private static SimpleDateFormat sf = new SimpleDateFormat("yyyyMMdd_HHmmssSS");private FileUtils() {}public static boolean isExternalStorageDocument(Uri uri) {return "com.android.externalstorage.documents".equals(uri.getAuthority());}public static boolean isDownloadsDocument(Uri uri) {return "com.android.providers.downloads.documents".equals(uri.getAuthority());}public static boolean isMediaDocument(Uri uri) {return "com.android.providers.media.documents".equals(uri.getAuthority());}public static boolean isGooglePhotosUri(Uri uri) {return "com.google.android.apps.photos.content".equals(uri.getAuthority());}public static String getDataColumn(Context context, Uri uri, String selection, String[] selectionArgs) {Cursor cursor = null;String column = "_data";String[] projection = new String[]{"_data"};try {cursor = context.getContentResolver().query(uri, projection, selection, selectionArgs, (String)null);if (cursor != null && cursor.moveToFirst()) {int column_index = cursor.getColumnIndexOrThrow("_data");String var8 = cursor.getString(column_index);return var8;}} catch (IllegalArgumentException var12) {Log.i("FileUtils", String.format(Locale.getDefault(), "getDataColumn: _data - [%s]", var12.getMessage()));} finally {if (cursor != null) {cursor.close();}}return null;}@SuppressLint({"NewApi"})public static String getPath(Context context, Uri uri) {boolean isKitKat = VERSION.SDK_INT >= 19;if (isKitKat && DocumentsContract.isDocumentUri(context, uri)) {String id;String[] split;String type;if (isExternalStorageDocument(uri)) {id = DocumentsContract.getDocumentId(uri);split = id.split(":");type = split[0];if ("primary".equalsIgnoreCase(type)) {return Environment.getExternalStorageDirectory() + "/" + split[1];}} else if (isDownloadsDocument(uri)) {id = DocumentsContract.getDocumentId(uri);if (!TextUtils.isEmpty(id)) {try {Uri contentUri = ContentUris.withAppendedId(Uri.parse("content://downloads/public_downloads"), Long.valueOf(id));return getDataColumn(context, contentUri, (String)null, (String[])null);} catch (NumberFormatException var9) {Log.i("FileUtils", var9.getMessage());return null;}}} else if (isMediaDocument(uri)) {id = DocumentsContract.getDocumentId(uri);split = id.split(":");type = split[0];Uri contentUri = null;if ("image".equals(type)) {contentUri = Media.EXTERNAL_CONTENT_URI;} else if ("video".equals(type)) {contentUri = android.provider.MediaStore.Video.Media.EXTERNAL_CONTENT_URI;} else if ("audio".equals(type)) {contentUri = android.provider.MediaStore.Audio.Media.EXTERNAL_CONTENT_URI;}String selection = "_id=?";String[] selectionArgs = new String[]{split[1]};return getDataColumn(context, contentUri, "_id=?", selectionArgs);}} else {if ("content".equalsIgnoreCase(uri.getScheme())) {if (isGooglePhotosUri(uri)) {return uri.getLastPathSegment();}return getDataColumn(context, uri, (String)null, (String[])null);}if ("file".equalsIgnoreCase(uri.getScheme())) {return uri.getPath();}}return null;}public static boolean copyFile(FileInputStream fileInputStream, String outFilePath) throws IOException {if (fileInputStream == null) {return false;} else {FileChannel inputChannel = null;FileChannel outputChannel = null;boolean var5;try {inputChannel = fileInputStream.getChannel();outputChannel = (new FileOutputStream(new File(outFilePath))).getChannel();inputChannel.transferTo(0L, inputChannel.size(), outputChannel);inputChannel.close();boolean var4 = true;return var4;} catch (Exception var9) {var5 = false;} finally {if (fileInputStream != null) {fileInputStream.close();}if (inputChannel != null) {inputChannel.close();}if (outputChannel != null) {outputChannel.close();}}return var5;}}public static void copyFile(@NonNull String pathFrom, @NonNull String pathTo) throws IOException {if (!pathFrom.equalsIgnoreCase(pathTo)) {FileChannel outputChannel = null;FileChannel inputChannel = null;try {inputChannel = (new FileInputStream(new File(pathFrom))).getChannel();outputChannel = (new FileOutputStream(new File(pathTo))).getChannel();inputChannel.transferTo(0L, inputChannel.size(), outputChannel);inputChannel.close();} finally {if (inputChannel != null) {inputChannel.close();}if (outputChannel != null) {outputChannel.close();}}}}public static String getCreateFileName(String prefix) {long millis = System.currentTimeMillis();return prefix + sf.format(millis);}public static String getCreateFileName() {long millis = System.currentTimeMillis();return sf.format(millis);}public static String rename(String fileName) {String temp = fileName.substring(0, fileName.lastIndexOf("."));String suffix = fileName.substring(fileName.lastIndexOf("."));return temp + "_" + getCreateFileName() + suffix;}
}

一、第一种实现

/*** 根据Uri获取文件绝对路径，解决Android4.4以上版本Uri转换 兼容Android 10** @param context* @param imageUri*/public static String getFileAbsolutePath(Context context, Uri imageUri) {if (context == null || imageUri == null) {return null;}if (android.os.Build.VERSION.SDK_INT < android.os.Build.VERSION_CODES.KITKAT) {return getRealFilePath(context, imageUri);}if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.KITKAT && android.os.Build.VERSION.SDK_INT < Build.VERSION_CODES.Q && DocumentsContract.isDocumentUri(context, imageUri)) {if (isExternalStorageDocument(imageUri)) {String docId = DocumentsContract.getDocumentId(imageUri);String[] split = docId.split(":");String type = split[0];if ("primary".equalsIgnoreCase(type)) {return Environment.getExternalStorageDirectory() + "/" + split[1];}} else if (isDownloadsDocument(imageUri)) {String id = DocumentsContract.getDocumentId(imageUri);Uri contentUri = ContentUris.withAppendedId(Uri.parse("content://downloads/public_downloads"), Long.valueOf(id));return getDataColumn(context, contentUri, null, null);} else if (isMediaDocument(imageUri)) {String docId = DocumentsContract.getDocumentId(imageUri);String[] split = docId.split(":");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;}String selection = MediaStore.Images.Media._ID + "=?";String[] selectionArgs = new String[]{split[1]};return getDataColumn(context, contentUri, selection, selectionArgs);}}// MediaStore (and general)if (android.os.Build.VERSION.SDK_INT >= Build.VERSION_CODES.Q){return uriToFileApiQ(context,imageUri);}else if ("content".equalsIgnoreCase(imageUri.getScheme())) {// Return the remote addressif (isGooglePhotosUri(imageUri)) {return imageUri.getLastPathSegment();}return getDataColumn(context, imageUri, null, null);}// Fileelse if ("file".equalsIgnoreCase(imageUri.getScheme())) {return imageUri.getPath();}return null;}//此方法 只能用于4.4以下的版本private static String getRealFilePath(final Context context, final Uri uri) {if (null == uri) {return null;}final String scheme = uri.getScheme();String data = null;if (scheme == null) {data = uri.getPath();} else if (ContentResolver.SCHEME_FILE.equals(scheme)) {data = uri.getPath();} else if (ContentResolver.SCHEME_CONTENT.equals(scheme)) {String[] projection = {MediaStore.Images.ImageColumns.DATA};Cursor cursor = context.getContentResolver().query(uri, projection, null, null, null);//            Cursor cursor = context.getContentResolver().query(uri, new String[]{MediaStore.Images.ImageColumns.DATA}, null, null, null);if (null != cursor) {if (cursor.moveToFirst()) {int index = cursor.getColumnIndex(MediaStore.Images.ImageColumns.DATA);if (index > -1) {data = cursor.getString(index);}}cursor.close();}}return data;}/*** @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());}private static String getDataColumn(Context context, Uri uri, String selection, String[] selectionArgs) {Cursor cursor = null;String column = MediaStore.Images.Media.DATA;String[] projection = {column};try {cursor = context.getContentResolver().query(uri, projection, selection, selectionArgs, null);if (cursor != null && cursor.moveToFirst()) {int index = cursor.getColumnIndexOrThrow(column);return cursor.getString(index);}} finally {if (cursor != null) {cursor.close();}}return null;}/*** @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());}/*** @param uri The Uri to check.* @return Whether the Uri authority is Google Photos.*/private static boolean isGooglePhotosUri(Uri uri) {return "com.google.android.apps.photos.content".equals(uri.getAuthority());}/*** Android 10 以上适配 另一种写法* @param context* @param uri* @return*/private static String getFileFromContentUri(Context context, Uri uri) {if (uri == null) {return null;}String filePath;String[] filePathColumn = {MediaStore.MediaColumns.DATA, MediaStore.MediaColumns.DISPLAY_NAME};ContentResolver contentResolver = context.getContentResolver();Cursor cursor = contentResolver.query(uri, filePathColumn, null,null, null);if (cursor != null) {cursor.moveToFirst();try {filePath = cursor.getString(cursor.getColumnIndex(filePathColumn[0]));return filePath;} catch (Exception e) {} finally {cursor.close();}}return "";}/*** Android 10 以上适配* @param context* @param uri* @return*/@RequiresApi(api = Build.VERSION_CODES.Q)private static String uriToFileApiQ(Context context, Uri uri) {File file = null;//android10以上转换if (uri.getScheme().equals(ContentResolver.SCHEME_FILE)) {file = new File(uri.getPath());} else if (uri.getScheme().equals(ContentResolver.SCHEME_CONTENT)) {//把文件复制到沙盒目录ContentResolver contentResolver = context.getContentResolver();Cursor cursor = contentResolver.query(uri, null, null, null, null);if (cursor.moveToFirst()) {String displayName = cursor.getString(cursor.getColumnIndex(OpenableColumns.DISPLAY_NAME));try {InputStream is = contentResolver.openInputStream(uri);File cache = new File(context.getExternalCacheDir().getAbsolutePath(), Math.round((Math.random() + 1) * 1000) + displayName);FileOutputStream fos = new FileOutputStream(cache);FileUtils.copy(is, fos);file = cache;fos.close();is.close();} catch (IOException e) {e.printStackTrace();}}}return file.getAbsolutePath();}/*** 通过文件路径 uri的转字符也可以* @param filePath* @return*/public static String getMimeType(String filePath) {String ext = MimeTypeMap.getFileExtensionFromUrl(filePath);return MimeTypeMap.getSingleton().getMimeTypeFromExtension(ext);}

二、第二种通用实现（目前文件选择贼好用-部分需大家测试验证，安卓10及以下使用无问题，11，12官方有对应的区分）

/*** Android 10 以上适配 另一种写法* @param context* @param uri* @return*/@SuppressLint("Range")public static String getFileFromContentUri(Context context, Uri uri) {if (uri == null) {return null;}String filePath;String[] filePathColumn = {MediaStore.DownloadColumns.DATA, MediaStore.DownloadColumns.DISPLAY_NAME};ContentResolver contentResolver = context.getContentResolver();Cursor cursor = contentResolver.query(uri, filePathColumn, null,null, null);if (cursor != null) {cursor.moveToFirst();try {filePath = cursor.getString(cursor.getColumnIndex(filePathColumn[0]));return filePath;} catch (Exception e) {} finally {cursor.close();}}return "";}

新方式兼容安卓13通用实现：

public static String getRealPathFromUri(Context context, Uri uri) {String filePath = "";String scheme = uri.getScheme();if (scheme == null)filePath = uri.getPath();else if (ContentResolver.SCHEME_FILE.equals(scheme)) {filePath = uri.getPath();} else if (ContentResolver.SCHEME_CONTENT.equals(scheme)) {String[] proj = { MediaStore.Images.Media.DATA };Cursor cursor = context.getContentResolver().query(uri, proj, null, null, null);if (cursor != null) {if (cursor.moveToFirst()) {int columnIndex = cursor.getColumnIndexOrThrow(MediaStore.Images.Media.DATA);filePath = cursor.getString(columnIndex);}cursor.close();}if (TextUtils.isEmpty(filePath)) {filePath = getFilePathForNonMediaUri(context, uri);}}return filePath;}//非媒体文件中查找private static String getFilePathForNonMediaUri(Context context, Uri uri) {String filePath = "";Cursor cursor = context.getContentResolver().query(uri, null, null, null, null);if (cursor != null) {if (cursor.moveToFirst()) {int columnIndex = cursor.getColumnIndexOrThrow("_data");filePath = cursor.getString(columnIndex);}cursor.close();}return filePath;}

三、Path 转Uri

    public static Uri toUri(Context context,String filePath) {if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {return FileProvider.getUriForFile(context, context.getApplicationInfo().packageName + ".fileprovider", new File(filePath));}return Uri.fromFile(new File(filePath));}

四，file_paths文件

<?xml version="1.0" encoding="utf-8"?>
<resources><paths><root-pathname="root"path="" /><files-pathname="files"path="" /><cache-pathname="cache"path="" /><external-pathname="external"path="" /><external-files-pathname="external_file_path"path="" /><external-cache-pathname="external_cache_path"path="" /></paths>
</resources>

五、mainfest 文件配置

<providerandroid:name="androidx.core.content.FileProvider"android:authorities="你的包名.fileprovider"android:exported="false"android:grantUriPermissions="true"tools:replace="android:authorities"><meta-dataandroid:name="android.support.FILE_PROVIDER_PATHS"android:resource="@xml/file_paths" /></provider>

六、Android 10 的坑：

从Android10（API 29）开始，App层没有访问此路径的权限（即：

Environment.getExternalStorageDirectory().getAbsolutePath()

），官方提供的临时解决方案是在 Android Manifest 清单文件添加如下配置

七、Android 11 的坑：

需要增加：Manifest.permission.MANAGE_EXTERNAL_STORAGE 权限

步骤：

在AndroidManifest.xml中声明MANAGE_EXTERNAL_STORAGE权限。
发出一个action为Settings.ACTION_MANAGE_ALL_FILES_ACCESS_PERMISSION的Intent，引导用户手动授权。
调用Environment.isExternalStorageManager()来判断用户是否已授权。

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Android10/11/12/13 Uri与真实路径转换--全适配

工具类FileUtils ：

一、第一种实现

二、第二种通用实现（目前文件选择贼好用-部分需大家测试验证，安卓10及以下使用无问题，11，12官方有对应的区分）

新方式兼容安卓13通用实现：

三、Path 转Uri

四，file_paths文件

五、mainfest 文件配置

六、Android 10 的坑：

七、Android 11 的坑：

Android10/11/12/13 Uri与真实路径转换--全适配相关推荐

最新文章

热门文章

Android10/11/12/13 Uri与真实路径转换--全适配

工具类FileUtils ：

一、第一种实现

二、第二种通用实现（目前文件选择贼好用-部分需大家测试验证，安卓10及以下使用无问题，11，12官方有对应的区分）

新方式兼容安卓13通用实现：

三 、Path 转Uri

四，file_paths文件

五 、mainfest 文件配置

六、Android 10 的坑：

七、Android 11 的坑：

Android10/11/12/13 Uri与真实路径转换--全适配相关推荐

最新文章

热门文章

三、Path 转Uri

五、mainfest 文件配置