Android 10 下載圖片/視頻/excel文件等逼争，保存到公共目錄

文章參考

AndroidQ 適配-存儲空間篇
 Android Q 要來了，給你一份很"全面"的適配指南！
適配Android Q拍照和讀取相冊圖片
 Android-Q適配-存儲方式
 Android Q 沙箱適配多媒體文件總結(jié)
AndroidQ 適配-存儲空間篇
 Android Q 沙箱適配多媒體文件總結(jié)
Android Q 存儲機(jī)制大變化
 Android Q(10) 文件存儲適配

博客內(nèi)容新增

2019-12-20
1搁廓、將公共目錄文件保存在沙盒目錄下面
2020-03-17
1、修改下載文件到公共目錄文件夾下耕皮，不僅僅可以下載Music境蜕、Movies、Pictures凌停、還可以下載普通的excel文件等

問題描述

最近升級到anroid10粱年，google對手機(jī)根目錄文件夾的創(chuàng)建越來越嚴(yán)格了，我倒是覺得這個是一件好事情苦锨，但是逼泣！適配是個頭疼的問題趴泌。我目前處理 android<10 和 >=10 的情況，下載進(jìn)度監(jiān)聽拉庶。
代碼太多嗜憔，只展示部分，剩下代碼請到 github

代碼展示

/**
 * @date: 創(chuàng)建時間:2019/12/11
 * @author: gaoxiaoxiong
 * @descripion:文件操作類的監(jiān)聽
 **/
public interface OnFileDownListener {
  /**
     * @date :2019/12/16 0016
     * @author : gaoxiaoxiong
     * @description:
     * @param status status == -1 表示失敗  status ==0 表示正在下載  status == 1 表示成功
     * @param object 返回成功后的對象參數(shù)
     * @param proGress 當(dāng)前下載百分比
     * @param currentDownProGress 當(dāng)前下載量
     * @param totalProGress 總的量大小
     **/
    void onFileDownStatus(int status,Object object,int proGress, long currentDownProGress, long totalProGress);
}

   /**
     * @date: 2019/5/22 0022
     * @author: gaoxiaoxiong
     * @description: 下載的圖片保存的位置
     **/
    public String getPublickDiskImagePicDir() {
        return getPublickDiskFileDir(BaseApplication.getInstance(), DIRECTORY_PICTURES);
    }


    /**
     * @date: 2019/5/22 0022
     * @author: gaoxiaoxiong
     * @description: 電影保存的位置
     **/
    public String getPublickDiskMoviesDir() {
        return getPublickDiskFileDir(BaseApplication.getInstance(), DIRECTORY_MOVIES);
    }

    /**
     * @date :2019/12/16 0016
     * @author : gaoxiaoxiong
     * @description:音樂保存的位置
     **/
    public String getPublickDiskMusicDir() {
        return getPublickDiskFileDir(BaseApplication.getInstance(), DIRECTORY_MUSIC);
    }

    /**
     * @date 創(chuàng)建時間:2018/12/20
     * @author GaoXiaoXiong
     * @Description: 創(chuàng)建保存圖片的緩存目錄
     */
    public String getPublickDiskImagePicCacheDir() {
        return getPublickDiskCacheDir(BaseApplication.getInstance(), DIRECTORY_PICTURES);
    }

    /**
     * 作者：GaoXiaoXiong
     * 創(chuàng)建時間:2019/1/26
     * 注釋描述:獲取緩存目錄
     *
     * @fileName 獲取外部存儲目錄下緩存的 fileName的文件夾路徑
     */
    public String getPublickDiskCacheDir(Context context, String fileName) {
        String cachePath = null;
        if (Environment.MEDIA_MOUNTED.equals(Environment.getExternalStorageState())
                || !Environment.isExternalStorageRemovable()) {//此目錄下的是外部存儲下的私有的fileName目錄
            cachePath = context.getExternalCacheDir().getPath() + "/" + fileName;  //SDCard/Android/data/你的應(yīng)用包名/cache/fileName
        } else {
            cachePath = context.getCacheDir().getPath() + "/" + fileName;
        }
        File file = new File(cachePath);
        if (!file.exists()) {
            file.mkdirs();
        }
        return file.getAbsolutePath(); //SDCard/Android/data/你的應(yīng)用包名/cache/fileName
    }

    /**
     * @date: 2019/8/2 0002
     * @author: gaoxiaoxiong
     * @description:獲取外部存儲目錄下的 fileName的文件夾路徑
     **/
    public String getPublickDiskFileDir(Context context, String fileName) {
        String cachePath = null;
        if (Environment.MEDIA_MOUNTED.equals(Environment.getExternalStorageState())
                || !Environment.isExternalStorageRemovable()) {//此目錄下的是外部存儲下的私有的fileName目錄
            cachePath = context.getExternalFilesDir(fileName).getAbsolutePath();  //mnt/sdcard/Android/data/com.my.app/files/fileName
        } else {
            cachePath = context.getFilesDir().getPath() + "/" + fileName;        //data/data/com.my.app/files
        }
        File file = new File(cachePath);
        if (!file.exists()) {
            file.mkdirs();
        }
        return file.getAbsolutePath();  //mnt/sdcard/Android/data/com.my.app/files/fileName
    }


    /**
     * @date :2020/3/17 0017
     * @author : gaoxiaoxiong
     * @description:獲取公共目錄氏仗，注意吉捶，只適合android9.0以下的
     **/
    public String getPublickDiskFileDirAndroid9(String fileDir){
        String filePath = null;
        if (Environment.MEDIA_MOUNTED.equals(Environment.getExternalStorageState())
                || !Environment.isExternalStorageRemovable()) {
            filePath = Environment.getExternalStoragePublicDirectory(fileDir).getPath();
        }
        File file = new File(filePath);
        if (!file.exists()) {
            file.mkdirs();
        }
        return file.getAbsolutePath();
    }

   public static final int LOADING = 0;//加載中
   public static final int SUCCESS=1;
   public static final int FAIL=-1;

 /**
     * 如果是要存放到沙盒外部目錄，就需要使用此方法
     * @date: 創(chuàng)建時間:2019/12/11
     * @author: gaoxiaoxiong
     * @descripion: 保存圖片皆尔，視頻呐舔，音樂到公共地區(qū)，此操作需要在線程慷蠕，不是我們自己的APP目錄下面的
     * @param downPathUrl 下載文件的路徑珊拼，需要包含后綴
     * @param inserType 存儲類型，可選參數(shù) DIRECTORY_PICTURES  ,DIRECTORY_MOVIES  ,DIRECTORY_MUSIC 流炕，DIRECTORY_DOWNLOADS
     **/
    public void downFileFromServiceToPublicDir(String downPathUrl, Context context, String inserType, OnFileDownListener onFileDownListener) {
        if (inserType.equals(DIRECTORY_DOWNLOADS)){
            if (Build.VERSION.SDK_INT>=29){//android 10
                downUnKnowFileFromService(downPathUrl,context,inserType,onFileDownListener);//返回的是uri
            }else {
                downUnKnowFileFromService(downPathUrl,onFileDownListener);//返回的是file
            }
        }else {
            //下載到沙盒外部公共目錄
            downMusicVideoPicFromService(downPathUrl,context,inserType,onFileDownListener);
        }
    }

 /**
     * 如果是要存放到沙盒外部目錄澎现，就需要使用此方法
     * @date: 創(chuàng)建時間:2019/12/11
     * @author: gaoxiaoxiong
     * @descripion: 下載的文件到 DIRECTORY_DOWNLOADS，只有10以上才有 MediaStore.Downloads
     * @param downPathUrl 下載文件的路徑每辟，需要包含后綴
     * @param inserType 存儲類型 DIRECTORY_DOWNLOADS
     **/
    private void downUnKnowFileFromService(final String downPathUrl,final Context context, String inserType,final OnFileDownListener onFileDownListener){
        if (inserType.equals(DIRECTORY_DOWNLOADS)){
            Observable.just(downPathUrl).subscribeOn(Schedulers.newThread()).map(new Function<String, Uri>() {
                @RequiresApi(api = Build.VERSION_CODES.Q)
                @Override
                public Uri apply(String s) throws Exception {
                    Uri uri = null;
                    try {
                        URL url = new URL(downPathUrl);
                        HttpURLConnection conn = (HttpURLConnection) url.openConnection();
                        conn.setConnectTimeout(30 * 1000);
                        InputStream is = conn.getInputStream();
                        long time = System.currentTimeMillis();
                        int code = conn.getResponseCode();
                        String prefix = downPathUrl.substring(downPathUrl.lastIndexOf(".") + 1);
                        String fileName = null;
                        if (code == HttpURLConnection.HTTP_OK) {
                            fileName = conn.getHeaderField("Content-Disposition");
                            // 通過Content-Disposition獲取文件名剑辫，這點(diǎn)跟服務(wù)器有關(guān)，需要靈活變通
                            if (fileName == null || fileName.length() < 1) {
                                // 通過截取URL來獲取文件名
                                URL downloadUrl = conn.getURL(); // 獲得實(shí)際下載文件的URL
                                fileName = downloadUrl.getFile();
                                fileName = fileName.substring(fileName.lastIndexOf("/") + 1);
                            } else {
                                fileName = URLDecoder.decode(fileName.substring(
                                        fileName.indexOf("filename=") + 9), "UTF-8");
                                // 有些文件名會被包含在""里面渠欺，所以要去掉妹蔽，不然無法讀取文件后綴
                                fileName = fileName.replaceAll("\"", "");
                            }
                        }

                        if (isEmpty(fileName)) {
                            fileName = time + "." + prefix;
                        }

                        ContentValues contentValues = new ContentValues();
                        contentValues.put(MediaStore.Downloads.DISPLAY_NAME, fileName);
                        contentValues.put(MediaStore.Downloads.MIME_TYPE,getMIMEType(fileName));
                        contentValues.put(MediaStore.Downloads.DATE_TAKEN, System.currentTimeMillis());
                        uri = context.getContentResolver().insert(MediaStore.Downloads.EXTERNAL_CONTENT_URI, contentValues);
                        BufferedInputStream inputStream = new BufferedInputStream(is);
                        OutputStream os = context.getContentResolver().openOutputStream(uri);
                        if (os != null) {
                            byte[] buffer = new byte[1024];
                            int len;
                            int total = 0;
                            int contentLeng = conn.getContentLength();
                            while ((len = inputStream.read(buffer)) != -1) {
                                os.write(buffer, 0, len);
                                total += len;
                                if (onFileDownListener != null) {
                                    onFileDownListener.onFileDownStatus(LOADING, null, (total * 100 / contentLeng), total, contentLeng);
                                }
                            }
                        }
                        os.flush();
                        inputStream.close();
                        is.close();
                        os.close();
                    } catch (MalformedURLException e) {
                        e.printStackTrace();
                    } catch (UnsupportedEncodingException e) {
                        e.printStackTrace();
                    } catch (FileNotFoundException e) {
                        e.printStackTrace();
                    } catch (IOException e) {
                        e.printStackTrace();
                    }
                    return uri;
                }
            })
                    .observeOn(AndroidSchedulers.mainThread())
                    .subscribe(new Observer<Uri>() {
                        @Override
                        public void onSubscribe(Disposable d) {

                        }

                        @Override
                        public void onNext(Uri uri) {
                            if (uri != null && onFileDownListener != null) {
                                onFileDownListener.onFileDownStatus(SUCCESS, uri, 0, 0, 0);
                            } else {
                                onFileDownListener.onFileDownStatus(FAIL, null, 0, 0, 0);
                            }
                        }

                        @Override
                        public void onError(Throwable e) {

                        }

                        @Override
                        public void onComplete() {

                        }
                    });
        }
    }


/**
     * 如果是要存放到沙盒外部目錄，就需要使用此方法
     * @date: 創(chuàng)建時間:2019/12/11
     * @author: gaoxiaoxiong
     * @descripion: 保存圖片挠将，視頻胳岂，音樂到公共地區(qū)，此操作需要在線程捐名，不是我們自己的APP目錄下面的
     * @param downPathUrl 下載文件的路徑旦万，需要包含后綴
     * @param inserType 存儲類型闹击，可選參數(shù) DIRECTORY_PICTURES  ,DIRECTORY_MOVIES  ,DIRECTORY_MUSIC
     **/
    private void downMusicVideoPicFromService(final String downPathUrl,final Context context,final String inserType,final OnFileDownListener onFileDownListener){
        Observable.just(downPathUrl).subscribeOn(Schedulers.newThread()).map(new Function<String, Uri>() {
            @Override
            public Uri apply(String s) throws Exception {
                Uri uri = null;
                try {
                    URL url = new URL(downPathUrl);
                    HttpURLConnection conn = (HttpURLConnection) url.openConnection();
                    conn.setConnectTimeout(30 * 1000);
                    InputStream is = conn.getInputStream();
                    long time = System.currentTimeMillis();
                    int code = conn.getResponseCode();
                    String prefix = downPathUrl.substring(downPathUrl.lastIndexOf(".") + 1);
                    String fileName = null;
                    if (code == HttpURLConnection.HTTP_OK) {
                        fileName = conn.getHeaderField("Content-Disposition");
                        // 通過Content-Disposition獲取文件名镶蹋，這點(diǎn)跟服務(wù)器有關(guān)，需要靈活變通
                        if (fileName == null || fileName.length() < 1) {
                            // 通過截取URL來獲取文件名
                            URL downloadUrl = conn.getURL(); // 獲得實(shí)際下載文件的URL
                            fileName = downloadUrl.getFile();
                            fileName = fileName.substring(fileName.lastIndexOf("/") + 1);
                        } else {
                            fileName = URLDecoder.decode(fileName.substring(
                                    fileName.indexOf("filename=") + 9), "UTF-8");
                            // 有些文件名會被包含在""里面赏半，所以要去掉贺归，不然無法讀取文件后綴
                            fileName = fileName.replaceAll("\"", "");
                        }
                    }

                    if (isEmpty(fileName)) {
                        fileName = time + "." + prefix;
                    }

                    ContentValues contentValues = new ContentValues();
                    if (inserType.equals(DIRECTORY_PICTURES)) {
                        contentValues.put(MediaStore.Images.Media.DISPLAY_NAME, fileName);
                        contentValues.put(MediaStore.Images.Media.MIME_TYPE, getMIMEType(fileName));
                        contentValues.put(MediaStore.Images.Media.DATE_TAKEN, System.currentTimeMillis());
                        //只是往 MediaStore 里面插入一條新的記錄，MediaStore 會返回給我們一個空的 Content Uri
                        //接下來問題就轉(zhuǎn)化為往這個 Content Uri 里面寫入
                        uri = context.getContentResolver().insert(MediaStore.Images.Media.EXTERNAL_CONTENT_URI, contentValues);
                    } else if (inserType.equals(DIRECTORY_MOVIES)) {
                        contentValues.put(MediaStore.Video.Media.MIME_TYPE, getMIMEType(fileName));
                        contentValues.put(MediaStore.Video.Media.DISPLAY_NAME, fileName);
                        contentValues.put(MediaStore.Video.Media.DATE_TAKEN, System.currentTimeMillis());
                        //只是往 MediaStore 里面插入一條新的記錄断箫，MediaStore 會返回給我們一個空的 Content Uri
                        //接下來問題就轉(zhuǎn)化為往這個 Content Uri 里面寫入
                        uri = context.getContentResolver().insert(MediaStore.Video.Media.EXTERNAL_CONTENT_URI, contentValues);
                    } else if (inserType.equals(DIRECTORY_MUSIC)) {
                        contentValues.put(MediaStore.Audio.Media.MIME_TYPE, getMIMEType(fileName));
                        contentValues.put(MediaStore.Audio.Media.DISPLAY_NAME, fileName);
                        if (Build.VERSION.SDK_INT>=29){//android 10
                            contentValues.put(MediaStore.Audio.Media.DATE_TAKEN, System.currentTimeMillis());
                        }
                        //只是往 MediaStore 里面插入一條新的記錄拂酣，MediaStore 會返回給我們一個空的 Content Uri
                        //接下來問題就轉(zhuǎn)化為往這個 Content Uri 里面寫入
                        uri = context.getContentResolver().insert(MediaStore.Audio.Media.EXTERNAL_CONTENT_URI, contentValues);
                    }
                    BufferedInputStream inputStream = new BufferedInputStream(is);
                    OutputStream os = context.getContentResolver().openOutputStream(uri);
                    if (os != null) {
                        byte[] buffer = new byte[1024];
                        int len;
                        int total = 0;
                        int contentLeng = conn.getContentLength();
                        while ((len = inputStream.read(buffer)) != -1) {
                            os.write(buffer, 0, len);
                            total += len;
                            if (onFileDownListener != null) {
                                onFileDownListener.onFileDownStatus(LOADING, null, (total * 100 / contentLeng), total, contentLeng);
                            }
                        }
                    }

                    //oppo手機(jī)不會出現(xiàn)在照片里面，但是會出現(xiàn)在圖集里面
                    if (inserType.equals(DIRECTORY_PICTURES)){//如果是圖片
                        //掃描到相冊
                        String[] filePathArray = FileSDCardUtil.getInstance().getPathFromContentUri(uri,context);
                        MediaScannerConnection.scanFile(context, new String[] {filePathArray[0]}, new String[]{"image/jpeg"}, new MediaScannerConnection.OnScanCompletedListener(){
                            @Override
                            public void onScanCompleted(String path, Uri uri) {
                                Log.e(TAG,"PATH:"+path);
                            }
                        } );
                    }
                    os.flush();
                    inputStream.close();
                    is.close();
                    os.close();
                } catch (MalformedURLException e) {
                    e.printStackTrace();
                } catch (UnsupportedEncodingException e) {
                    e.printStackTrace();
                } catch (FileNotFoundException e) {
                    e.printStackTrace();
                } catch (IOException e) {
                    e.printStackTrace();
                }
                return uri;
            }
        })
                .observeOn(AndroidSchedulers.mainThread())
                .subscribe(new Observer<Uri>() {
                    @Override
                    public void onSubscribe(Disposable d) {

                    }

                    @Override
                    public void onNext(Uri uri) {
                        if (uri != null && onFileDownListener != null) {
                            onFileDownListener.onFileDownStatus(SUCCESS, uri, 0, 0, 0);
                        } else {
                            onFileDownListener.onFileDownStatus(FAIL, null, 0, 0, 0);
                        }
                    }

                    @Override
                    public void onError(Throwable e) {
                        Log.e(TAG,"錯誤信息:"+e.getMessage());
                    }

                    @Override
                    public void onComplete() {

                    }
                });
    }

Android 10 下載圖片/視頻/excel文件等，保存到公共目錄

Android 10 下載圖片/視頻/excel文件等，保存到公共目錄

文章參考

博客內(nèi)容新增

問題描述

代碼展示