android10获取相册图片

Posted 2020-11-24 办法总比问题多

//最重要的就是加上这两个  主要作用 把获取到的图片地址转为url格式然后再转bitmap格式
 private void displayImage(String imagePath) {

        BitmapFactory.Options options = new BitmapFactory.Options();
        options.inJustDecodeBounds = false;
//        Bitmap bitmap = BitmapFactory.decodeFile(imagePath, options);
        Bitmap bitmap1= getBitmapFromUri(this, getImageContentUri(this,imagePath));
        if (bitmap1 != null) {
            headFile = saveMyBitmap(bitmap1, "head");
            upphoto(headFile);
        } else {
            Toast.makeText(this, "获取图片失败", Toast.LENGTH_SHORT).show();
        }
    }



 // 通过uri加载图片
    public static Bitmap getBitmapFromUri(Context context, Uri uri) {
        try {
            ParcelFileDescriptor parcelFileDescriptor =
                    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(Context context, String path) {
        Cursor cursor = 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));
            Uri baseUri = Uri.parse("content://media/external/images/media");
            return Uri.withAppendedPath(baseUri, "" + 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 context.getContentResolver().insert(MediaStore.Images.Media.EXTERNAL_CONTENT_URI, values);
            } else {
                return null;
            }
        }
    }