android 10 问题汇总

1、因为deviceid的限制，所有各大三方sdk需要更新，比如个推、微信支付、环信、友盟,Basesdk

2、Using WebView from more than one process at once with the same data directory is not supported

这个错误是webview多进程使用导致，在api28以上，需要对webview 目录进行控制

@RequiresApi(api = 28)public static void webviewSetPath(Context context) {    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.P) {        String processName = getProcessName(context);        if (!packageNameocessName)) {//判断不等于默认进程名称            WebView.setDataDirectorySuffix(processName);        }    }}public static String getProcessName(Context context) {    if (context == null) return null;    ActivityManager manager = (ActivityManager) context.getSystemService(Context.ACTIVITY_SERVICE);    for (ActivityManager.RunningAppProcessInfo processInfo : manager.getRunningAppProcesses()) {        if (processInfo.pid == android.os.Process.myPid()) {            return processInfo.processName;        }    }    return null;}

3、文件系统：

获取本地根目录文件夹的适配：

public static  File getDiskCacheDir(String uniqueName) {        File file = null;        String cachePath = null;        Context context = YokaApplication.context;        if(Build.VERSION.SDK_INT >= Build.VERSION_CODES.Q){            cachePath = context.getExternalFilesDir(null).getAbsolutePath();        }else{            if (Environment.MEDIA_MOUNTED.equals(Environment.getExternalStorageState())                    || !Environment.isExternalStorageRemovable()) {                if(context.getExternalCacheDir() != null){                    cachePath = context.getExternalCacheDir().getPath(); //路径为:/mnt/sdcard//Android/data/< package name >/cach/…                }else{                    try {                        cachePath  = Environment.getExternalStorageDirectory().getPath();   //SD根目录:/mnt/sdcard/ (6.0后写入需要用户授权)                    }catch (Exception e){                        cachePath = context.getCacheDir().getPath();  //路径是:/data/data/< package name >/cach/…                    }                }            } else {                cachePath = context.getCacheDir().getPath();  //路径是:/data/data/< package name >/cach/…            }        }        file = new File(cachePath + File.separator + uniqueName);        if(file.exists()){            return file;        }else {            if(file.mkdir()){               return file;            }        }        return file;    }

4、因为文件限制

BitmapFactory.decodeFile这一类的方法不能用了，下面提供方法获取本地图片的bitmap

//根据图片路径获取bitmap    public static Bitmap getBitmapFormUrl(String url){        Bitmap bitmap = null;        if(Build.VERSION.SDK_INT >= Build.VERSION_CODES.Q){            File file = new File(url);            File rootFile = YokaApplication.context.getExternalFilesDir(null);            if(file.getAbsolutePath().contains(rootFile.getAbsolutePath())){                bitmap = BitmapFactory.decodeFile(url);            }else {                Uri uri = getImageContentUri(url);                bitmap = getBitmapFromUri(uri);            }        }else {            bitmap = BitmapFactory.decodeFile(url);        }        return bitmap;    }public static Bitmap getBitmapFromUri( Uri uri) {        try {            ParcelFileDescriptor parcelFileDescriptor =                    YokaApplication.context.getContentResolver().openFileDescriptor(uri, "r");            FileDescriptor fileDescriptor = parcelFileDescriptor.getFileDescriptor();            Bitmap image = BitmapFactory.decodeFileDescriptor(fileDescriptor);            parcelFileDescriptor.close();            return image;        } catch (Exception e) {            e.printStackTrace();        }        return null;    }    public static Uri getImageContentUri(String path) {        Cursor cursor = YokaApplication.context.getContentResolver().query(MediaStore.Images.Media.EXTERNAL_CONTENT_URI,                new String[] { MediaStore.Images.Media._ID }, MediaStore.Images.Media.DATA + "=? ",                new String[] { path }, null);        if (cursor != null && cursor.moveToFirst()) {            int id = cursor.getInt(cursor.getColumnIndex(MediaStore.MediaColumns._ID));            return Uri.withAppendedPath(MediaStore.Images.Media.EXTERNAL_CONTENT_URI, "" + id);        } else {            // 如果图片不在手机的共享图片数据库，就先把它插入。            if (new File(path).exists()) {                ContentValues values = new ContentValues();                values.put(MediaStore.Images.Media.DATA, path);                return YokaApplication.context.getContentResolver().insert(MediaStore.Images.Media.EXTERNAL_CONTENT_URI, values);            } else {                return null;            }        }    }

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