Android 拍照和从相册选取

// 几个成员变量
    private static final int TAKE_PHOTO = 100;
    private static final int TAKE_PHOTO_GALLERY = 200;
    private static final int CROP_PHOTO = 300;
    private static final String IMAGE_FILE_NAME = "image.jpg";

// 拍照
    private void takePicture() {
        Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
        intent.putExtra(MediaStore.EXTRA_OUTPUT, Uri.fromFile(new File(Environment.getExternalStorageDirectory(), IMAGE_FILE_NAME)));
        startActivityForResult(intent, TAKE_PHOTO);
    }

// 从相册选取
    private void takeFromCallera() {
        Intent intent = new Intent(Intent.ACTION_PICK);
        intent.setType("image/*");
        startActivityForResult(intent, TAKE_PHOTO_GALLERY);
    }

// 回调处理
@Override
    protected void onActivityResult(int requestCode, int resultCode, Intent intent) {
        super.onActivityResult(requestCode, resultCode, intent);
        if (resultCode == RESULT_OK) {
            switch (requestCode) {
                case TAKE_PHOTO:
                    File file = new File(Environment.getExternalStorageDirectory(), IMAGE_FILE_NAME);
                    cropPhoto(Uri.fromFile(file));
                    break;
                case TAKE_PHOTO_GALLERY:
                    if (intent != null) {
                        cropPhoto(intent.getData());
                    }
                    break;
                case CROP_PHOTO:
                    if (intent != null) {
                        setImage(intent);
                    }
                    break;
            }
        } else if (resultCode == RESULT_CANCELED) {
            Toast.makeText(Main2Activity.this, "取消", Toast.LENGTH_LONG).show();
            return;
        }
    }

// 裁剪
private void cropPhoto(Uri uri) {
        Intent intent = new Intent("com.android.camera.action.CROP");
        intent.setDataAndType(uri, "image/*");
        intent.putExtra("crop", true);

        // 裁剪框的比例
        intent.putExtra("aspectX", 1);
        intent.putExtra("aspectY", 2);

        // 裁剪出图片的大小
        intent.putExtra("outputX", 100);
        intent.putExtra("outputY", 100);
        intent.putExtra("return-data", true);
        startActivityForResult(intent, CROP_PHOTO);
    }

// 设置图片
private void setImage(Intent intent) {
        Bundle extra = intent.getExtras();
        if (extra != null) {
            Bitmap bitmap = extra.getParcelable("data");
            uploadFile("163", "1", bitmap);
            image.setImageBitmap(bitmap);
        }
    }

// okhttp上传文件
    private void uploadFile(String doctorId, String fileType, Bitmap bitmap) {
        ByteArrayOutputStream baos = new ByteArrayOutputStream();
        bitmap.compress(Bitmap.CompressFormat.JPEG, 100, baos);
        InputStream in = new ByteArrayInputStream(baos.toByteArray());

        MediaType MEDIA_TYPE_MARKDOWN = MediaType.parse("image/png");
        RequestBody body = create(MEDIA_TYPE_MARKDOWN, in);


        OkHttpClient client = new OkHttpClient();
        RequestBody formBody = new MultipartBody.Builder()
                .setType(MultipartBody.FORM)
                .addFormDataPart("doctorId", doctorId)
                .addFormDataPart("fileType", fileType)
                .addFormDataPart("file","image.jpeg",body)
                .build();

        final Request request = new Request.Builder()
                .url("http://123.57.190.178/doctor/frontend/web/index.php?r=api/upload/file")
                .post(formBody)
                .build();


        client.newCall(request).enqueue(new Callback() {
            @Override
            public void onFailure(Call call, IOException e) {

            }

            @Override
            public void onResponse(Call call, Response response) throws IOException {
                Gson gson = new Gson();
                BaseRepBean bean = gson.fromJson(response.body().string(), BaseRepBean.class);
                String result = DESUtils.decrypt(bean.getData());
                Log.e("返回的结果=", result);
            }
        });
    }

public RequestBody create(final MediaType mediaType, final InputStream inputStream) {
        return new RequestBody() {
            @Override
            public MediaType contentType() {
                return mediaType;
            }

            @Override
            public long contentLength() {
                try {
                    return inputStream.available();
                } catch (IOException e) {
                    return 0;
                }
            }

            @Override
            public void writeTo(BufferedSink sink) throws IOException {
                Source source = null;
                try {
                    source = Okio.source(inputStream);
                    sink.writeAll(source);
                } finally {
                    Util.closeQuietly(source);
                }
            }
        };
    }