Matisse图片选择框架使用

build.gradle引入

implementation 'com.zhihu.android:matisse:0.5.2-beta4'

代码使用：
public void selectImage() {
        Matisse.from(this)
                .choose(MimeType.ofImage(), false)
                .capture(true)  // 使用相机，和 captureStrategy 一起使用
                .captureStrategy(new CaptureStrategy(true, "com.cswl.tradersmake.fileprovider"))
                .theme(R.style.Matisse_Dracula)
                .countable(true)
                .maxSelectable(1)
                .addFilter(new Filter() {
                    @Override
                    protected Set<MimeType> constraintTypes() {
                        return new HashSet<MimeType>() {{
                            add(MimeType.PNG);
                        }};
                    }

                    @Override
                    public IncapableCause filter(Context context, Item item) {
                        try {
                            InputStream inputStream = context.getContentResolver().openInputStream(item.getContentUri());
                            BitmapFactory.Options options = new BitmapFactory.Options();
                            options.inJustDecodeBounds = true;
                            BitmapFactory.decodeStream(inputStream, null, options);
                            int width = options.outWidth;
                            int height = options.outHeight;
//                            if (width >= 500)
//                                return new IncapableCause("宽度超过500px");
                        } catch (FileNotFoundException e) {
                            e.printStackTrace();
                        }
                        return null;
                    }
                })
                .restrictOrientation(ActivityInfo.SCREEN_ORIENTATION_PORTRAIT)
                .thumbnailScale(0.87f)
                .imageEngine(new GlideLoadEngine())
                .forResult(AppConfig.INTRODUCE_IMG_REQUEST_CODE);
    }

//文件路径问题

private String handlePathBeforeKitKat(Intent data) {
        List<Uri> pathList = Matisse.obtainResult(data);
        String path = pathList.get(0).getPath();
        return path;
    }

    @TargetApi(19)
    private String handlePathOnKitKat(Intent data) {
        String path = null;
        Uri uri = Matisse.obtainResult(data).get(0);
        if (DocumentsContract.isDocumentUri(this, uri)) {
            String docId = DocumentsContract.getDocumentId(uri);
            if ("com.android.providers.media.documents".equals(uri.getAuthority())) {
                String id = docId.split(":")[1];
                String selection = MediaStore.Images.Media._ID + "=" + id;
                path = getPath(MediaStore.Images.Media.EXTERNAL_CONTENT_URI, selection);
            } else if ("com.android.providers.downloads.documents".equals(uri.getAuthority())) {
                Uri contentUri = ContentUris.withAppendedId(Uri.parse("content://downloads/public_downloads"), Long.valueOf(docId));
                path = getPath(contentUri, null);
            }
        } else if ("content".equalsIgnoreCase(uri.getScheme())) {
            path = getPath(uri, null);
        } else if ("file".equalsIgnoreCase(uri.getScheme())) {
            path = uri.getPath();
        }
        return path;
    }

    private String getPath(Uri uri, String selection) {
        String path = null;
        Cursor cursor = getContentResolver().query(uri, null, selection, null, null);
        if (cursor != null) {
            if (cursor.moveToFirst()) {
                path = cursor.getString(cursor.getColumnIndex(MediaStore.Images.Media.DATA));
            }
            cursor.close();
        }
        return path;
    }

    @Override
    protected void onActivityResult(int requestCode, int resultCode, @Nullable Intent data) {
        super.onActivityResult(requestCode, resultCode, data);
        if (requestCode == AppConfig.INTRODUCE_IMG_REQUEST_CODE && resultCode == RESULT_OK) {
            String filePath;
            if (Build.VERSION.SDK_INT >= 19) {
                filePath = handlePathOnKitKat(data);
            } else {
                filePath = handlePathBeforeKitKat(data);
            }
            if (!TextUtils.isEmpty(filePath)) {
//                    File file = new File(filePath);
                File file = BitmapUtils.compressBitmapToFile(this, filePath);
                if (file == null) {
                    Log.e("TAG", "onActivityResult: file 压缩失败");
                    file = new File(filePath);
                }
                Log.e("TAG", "onActivityResult: " + filePath);
                RequestBody body = RequestBody.create(MediaType.parse("image/png"), file);
                MultipartBody.Part part = MultipartBody.Part.createFormData("file", FileUtils.getFileNameFromPath(filePath) + ".png", body);
                uploadImg(part);
            }
        }
    }