Shulou(Shulou.com)06/03 Report--

本篇内容介绍了"Android怎样实现上传图片功能"的有关知识，在实际案例的操作过程中，不少人都会遇到这样的困境，接下来就让小编带领大家学习一下如何处理这些情况吧!希望大家仔细阅读，能够学有所成!

本文实例为大家分享了Android实现上传图片功能的具体代码，供大家参考，具体内容如下

设定拍照返回的图片路径

/**

* 设定拍照返回的图片路径

* @param image 图片路径

* @param i 约定值

*/

protected void image(String image, int i) {

//创建file对象，用于存储拍照后的图片，这也是拍照成功后的照片路径

outputImage = new File(getExternalCacheDir(),image);

try {

//判断文件是否存在，存在删除，不存在创建

if (outputImage.exists()){

outputImage.delete();

}

outputImage.createNewFile();

} catch (IOException e) {

e.printStackTrace();

}

//相机拍照返回图片路径

Uri photoUri;

//判断当前Android版本

if(Build.VERSION.SDK_INT>=24){

photoUri = FileProvider.getUriForFile(TextActivity.this,"包名.FileProvider",outputImage);

}else {

photoUri = Uri.fromFile(outputImage);

}

Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);

intent.putExtra(MediaStore.EXTRA_OUTPUT, photoUri);

startActivityForResult(intent, i);

}

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调用系统相机拍照接受返回的图片路径

@Override

protected void onActivityResult(int requestCode, int resultCode, Intent data) {

super.onActivityResult(requestCode, resultCode, data);

if (resultCode == RESULT_OK) {

if (requestCode == IMAGE_Y) {

getImageView(binding.imageY,"0");

}

if (requestCode == IMAGE_Q) {

getImageView(binding.imageQ,"1");

}

}

}

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上传图片

/**

* 上传图片

* @param view 图片展示 view

*/

protected void getImageView(@NotNull ImageView view, String type) {

Bitmap photo = BitmapFactory.decodeFile(outputImage.getAbsolutePath());

view.setImageBitmap(photo);

int direction = 0;

try {

ExifInterface exif = new ExifInterface(String.valueOf(outputImage));

direction = Integer.parseInt(exif.getAttribute(ExifInterface.TAG_ORIENTATION));

} catch (IOException e) {

e.printStackTrace();

}

Matrix matrix = new Matrix();

Uri uri = Uri.fromFile(outputImage);

String f = uri.getPath();

Bitmap b = rotateBitmap(getBitmapFromUrl(f,900,1200),0);

switch (direction) {

case 1:

Log.d("图片方向","顶部，左侧（水平/正常）");

b = rotateBitmap(getBitmapFromUrl(f,900,1200),0);

break;

case 2:

b = rotateBitmap(getBitmapFromUrl(f,900,1200),0);

Log.d("图片方向","顶部，右侧（水平镜像）");

break;

case 3:

b = rotateBitmap(getBitmapFromUrl(f,900,1200),180);

Log.d("图片方向","底部，右侧（旋转180）");

break;

case 4:

matrix.postScale(1, -1);

b = Bitmap.createBitmap(b,0,0,900,1200,matrix,true);

Log.d("图片方向","底部，左侧（垂直镜像）");

break;

case 5:

matrix.postScale(-1, 1);

b = rotateBitmap(getBitmapFromUrl(f,900,1200),270);

b = Bitmap.createBitmap(b,0,0,900,1200,matrix,true);

Log.d("图片方向","左侧，顶部（水平镜像并顺时针旋转270）");

break;

case 6:

b = rotateBitmap(getBitmapFromUrl(f,900,1200),90);

Log.d("图片方向","右侧，顶部（顺时针旋转90）");

break;

case 7:

matrix.postScale(-1, 1);

b = rotateBitmap(getBitmapFromUrl(f,900,1200),90);

b = Bitmap.createBitmap(b,0,0,900,1200,matrix,true);

Log.d("图片方向","右侧，底部（水平镜像，顺时针旋转90度）");

break;

case 8:

b = rotateBitmap(getBitmapFromUrl(f,900,1200),270);

Log.d("图片方向","左侧，底部（顺时针旋转270）");

break;

default:

break;

}

try {

File files = new File(new URI(uri.toString()));

saveBitmap(b,files);

} catch (URISyntaxException e) {

e.printStackTrace();

}

try {

String file = uploadImage(networkApi.getFormal() + "setImage", uri.getPath(), code, userId);

TextBase.FileInfo fileInfo = new TextBase.FileInfo();

fileInfo.setFilePath(file);

mFileInfos.add(fileInfo);

model.load(file,type);

} catch (IOException | JSONException e) {

e.printStackTrace();

}

}

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/**

* 上传图片

* @param url 上传接口路径

* @param imagePath 图片路径

* @param code 唯一标识

* @return 服务器图片的路径

* @throws IOException

* @throws JSONException

*/

public static String uploadImage(String url, String imagePath, String code, String userId) throws IOException, JSONException {

OkHttpClient okHttpClient = new OkHttpClient();

Log.d("imagePath", imagePath);

File file = new File(imagePath);

RequestBody image = RequestBody.create(MediaType.parse("image/jpg"), file);

RequestBody requestBody = new MultipartBody.Builder()

.setType(MultipartBody.FORM)

.addFormDataPart("file", imagePath, image)

.addFormDataPart("fileOid", code)

.addFormDataPart("userId", userId)

.build();

Request request = new Request.Builder()

.url(url)

.addHeader("Authorization",令牌)

.post(requestBody)

.build();

Response response = okHttpClient.newCall(request).execute();

JSONObject jsonObject = new JSONObject(response.body().string());

return jsonObject.optString("msg");

}

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其他工具类

/**

* 压缩图片的方法

* @param url

* @param width

* @param height

* @return

*/

public static Bitmap getBitmapFromUrl(String url, double width, double height) {

BitmapFactory.Options options = new BitmapFactory.Options();

options.inJustDecodeBounds = true; // 设置了此属性一定要记得将值设置为false

Bitmap bitmap = BitmapFactory.decodeFile(url);

// 防止OOM发生

options.inJustDecodeBounds = false;

int mWidth = bitmap.getWidth();

int mHeight = bitmap.getHeight();

Matrix matrix = new Matrix();

float scaleWidth = 1;

float scaleHeight = 1;

// 按照固定宽高进行缩放

if(mWidth

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