头像上传下载

bean

public class MessageBean {
    /**
     * msg : 文件上传成功
     * code : 0
     */

    private String msg;
    private String code;

    public String getMsg() {
        return msg;
    }

    public void setMsg(String msg) {
        this.msg = msg;
    }

    public String getCode() {
        return code;
    }

    public void setCode(String code) {
        this.code = code;
    }

}

ApiService

@Multipart
@POST("upload")
Flowable<MessageBean> getMusicList(@Query("uid") String uid, @Part MultipartBody.Part file);

Model

public class NewModel {
    private NewsPresenter presenter;

    public NewModel(NewsPresenter presenter) {
        this.presenter = presenter;
    }
    public void getData(String uid , MultipartBody.Part file){
        Flowable<MessageBean> flowable = RetrofitUtils.getInstance().getService().getMusicList(uid, file);
        presenter.getNews(flowable);
    }

BasePresenter

public interface BasePresenter {
    void getData(String uid, MultipartBody.Part file);
}

presenter

public class NewsPresenter implements BasePresenter{
    private NewsView inv;
    private DisposableSubscriber<MessageBean> disposableSubscriber;

    public void attachView(NewsView inv){
        this.inv = inv;
    }

    public void detachView(){
        // 当Activity销毁的时候取消订阅时间，防止内存泄漏
        if (disposableSubscriber != null) {
            if (disposableSubscriber.isDisposed()) {
                disposableSubscriber.dispose();
            }
        }
        if (inv!=null){
            inv = null;
        }
    }
    @Override
    public void getData(String uid, MultipartBody.Part file) {
        NewModel newModel = new NewModel(this);
        newModel.getData(uid,file);
    }
    public void getNews(Flowable<MessageBean> flowable) {
        disposableSubscriber = flowable.subscribeOn(Schedulers.io())
                .observeOn(AndroidSchedulers.mainThread())
                .subscribeWith(new DisposableSubscriber<MessageBean>() {
                    @Override
                    public void onNext(MessageBean messageBean) {
                        if(messageBean!=null){
                            inv.onSuccess(messageBean);

                        }
                    }

                    @Override
                    public void onError(Throwable t) {
                        Log.e("zxz",t.getMessage());

                    }

                    @Override
                    public void onComplete() {

                    }
                });
    }

App

public class App extends Application{
    @Override
    public void onCreate() {
        super.onCreate();
        Fresco.initialize(this);
    }
}

NewsView

public interface NewsView {
    void onSuccess(MessageBean messageBean);
}

ImageUtils

public class ImageUtils {
    /**
     * Save image to the SD card
     *
     * @param photoBitmap
     * @param photoName
     * @param path
     */
    public static String savePhoto(Bitmap photoBitmap, String path,
                                   String photoName) {
        String localPath = null;
        if (android.os.Environment.getExternalStorageState().equals(
                android.os.Environment.MEDIA_MOUNTED)) {
            File dir = new File(path);
            if (!dir.exists()) {
                dir.mkdirs();
            }

            File photoFile = new File(path, photoName + ".png");
            FileOutputStream fileOutputStream = null;
            try {
                fileOutputStream = new FileOutputStream(photoFile);
                if (photoBitmap != null) {
                    if (photoBitmap.compress(Bitmap.CompressFormat.PNG, 100,
                            fileOutputStream)) { // 转换完成
                        localPath = photoFile.getPath();
                        fileOutputStream.flush();
                    }
                }
            } catch (FileNotFoundException e) {
                photoFile.delete();
                localPath = null;
                e.printStackTrace();
            } catch (IOException e) {
                photoFile.delete();
                localPath = null;
                e.printStackTrace();
            } finally {
                try {
                    if (fileOutputStream != null) {
                        fileOutputStream.close();
                        fileOutputStream = null;
                    }
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
        }
        return localPath;
    }

    /**
     * 转换图片成圆形
     *
     * @param bitmap 传入Bitmap对象
     * @return
     */
    public static Bitmap toRoundBitmap(Bitmap bitmap) {
        int width = bitmap.getWidth();
        int height = bitmap.getHeight();
        float roundPx;
        float left,top,right,bottom,dst_left,dst_top,dst_right,dst_bottom;
        if (width <= height) {
            roundPx = width / 2;
            top = 0;
            bottom = width;
            left = 0;
            right = width;
            height = width;
            dst_left = 0;
            dst_top = 0;
            dst_right = width;
            dst_bottom = width;
        } else {
            roundPx = height / 2;
            float clip = (width - height) / 2;
            left = clip;
            right = width - clip;
            top = 0;
            bottom = height;
            width = height;
            dst_left = 0;
            dst_top = 0;
            dst_right = height;
            dst_bottom = height;
        }
        Bitmap output = Bitmap.createBitmap(width,
                height, Bitmap.Config.ARGB_8888);
        Canvas canvas = new Canvas(output);
        final int color = 0xff424242;
        final Paint paint = new Paint();
        final Rect src = new Rect((int)left, (int)top, (int)right, (int)bottom);
        final Rect dst = new Rect((int)dst_left, (int)dst_top, (int)dst_right, (int)dst_bottom);
        final RectF rectF = new RectF(dst);
        paint.setAntiAlias(true);
        canvas.drawARGB(0, 0, 0, 0);
        paint.setColor(color);
        canvas.drawRoundRect(rectF, roundPx, roundPx, paint);
        paint.setXfermode(new PorterDuffXfermode(PorterDuff.Mode.SRC_IN));
        canvas.drawBitmap(bitmap, src, dst, paint);
        return output;
    }

}

MainActivity

public class MainActivity extends AppCompatActivity implements NewsView{
    @BindView(R.id.my_image_view)
    SimpleDraweeView mMyImageView;
    @BindView(R.id.btn_xiangji)
    Button mBtnXiangji;
    @BindView(R.id.btn_xiangce)
    Button mBtnXiangce;
    @BindView(R.id.btn_cancel)
    Button mBtnCancel;
    private File tempFile;
    private static final String PHOTO_FILE_NAME = "temp_photo.jpg";
    private static final int  CAMERA_REQUEST_CODE = 1;// 拍照  PHOTO_REQUEST_CAREMA
    private static final int PHOTO_REQUEST_GALLERY = 2;// 从相册中选择
    private static final int PHOTO_REQUEST_CUT = 3;// 结果
    private NewsPresenter presenter;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        ButterKnife.bind(this);
        presenter = new NewsPresenter();
        presenter.attachView(this);

    }
    @OnClick({R.id.my_image_view, R.id.btn_xiangji, R.id.btn_xiangce, R.id.btn_cancel})
    public void onClick(View v) {
        switch (v.getId()) {
            default:
                break;
            case R.id.my_image_view:
                break;
            case R.id.btn_xiangji:
                // 激活相机
                Intent intent = new Intent("android.media.action.IMAGE_CAPTURE");//android.media.action.IMAGE_CAPTURE
                // 判断存储卡是否可以用，可用进行存储
                if (hasSdcard()) {
                    tempFile = new File(Environment.getExternalStorageDirectory(), PHOTO_FILE_NAME);
                    // 从文件中创建uri
                    Uri uri = Uri.fromFile(tempFile);
                    intent.putExtra(MediaStore.EXTRA_OUTPUT, uri);
                }
                // 开启一个带有返回值的Activity，请求码为PHOTO_REQUEST_CAREMA
               startActivityForResult(intent,  CAMERA_REQUEST_CODE);
                break;
            case R.id.btn_xiangce:
                // 激活系统图库，选择一张图片
                Intent intent1 = new Intent(Intent.ACTION_PICK);
                intent1.setType("image/*");
                // 开启一个带有返回值的Activity，请求码为PHOTO_REQUEST_GALLERY
                startActivityForResult(intent1, PHOTO_REQUEST_GALLERY);
                break;
            case R.id.btn_cancel:
                break;
        }
    }
    /*
  * 判断sdcard是否被挂载
  */
    private boolean hasSdcard() {
        //判断ＳＤ卡手否是安装好的　　　media_mounted
        if (Environment.getExternalStorageState().equals(Environment.MEDIA_MOUNTED)) {
            return true;
        } else {
            return false;
        }
    }
    /*
    * 剪切图片
    */
    private void crop(Uri uri) {
        // 裁剪图片意图
        Intent intent = new Intent("com.android.camera.action.CROP");
        intent.setDataAndType(uri, "image/*");
        intent.putExtra("crop", "true");
        // 裁剪框的比例，1：1
        intent.putExtra("aspectX", 1);
        intent.putExtra("aspectY", 1);
        // 裁剪后输出图片的尺寸大小
        intent.putExtra("outputX", 250);
        intent.putExtra("outputY", 250);

        intent.putExtra("outputFormat", "JPEG");// 图片格式
        intent.putExtra("noFaceDetection", true);// 取消人脸识别
        intent.putExtra("return-data", true);
        // 开启一个带有返回值的Activity，请求码为PHOTO_REQUEST_CUT
        startActivityForResult(intent, PHOTO_REQUEST_CUT);
    }

    @Override
    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
        if (requestCode == PHOTO_REQUEST_GALLERY) {
            // 从相册返回的数据
            if (data != null) {
                // 得到图片的全路径
                Uri uri = data.getData();
                crop(uri);
            }
        } else if (requestCode ==  CAMERA_REQUEST_CODE) {
            // 从相机返回的数据
            if (hasSdcard()) {
                crop(Uri.fromFile(tempFile));
            } else {
                Toast.makeText(MainActivity.this, "未找到存储卡，无法存储照片！", Toast.LENGTH_SHORT).show();
            }
        } else if (requestCode == PHOTO_REQUEST_CUT) {
            // 从剪切图片返回的数据
            if (data != null) {
                Bitmap bitmap = data.getParcelableExtra("data");
                /**
                 * 获得图片
                 */
                mMyImageView.setImageBitmap(bitmap);
                setImgByStr( bitmap);
            }
            try {
                // 将临时文件删除
                tempFile.delete();
            } catch (Exception e) {
                e.printStackTrace();
            }
        }
        super.onActivityResult(requestCode, resultCode, data);
    }


    /**
     * 上传头像
     */
    public  void setImgByStr(Bitmap bitmap) {
        if(bitmap != null){
            // 拿着imagePath上传了
            // ...
        }
        String imagePath = ImageUtils.savePhoto(bitmap, Environment
                .getExternalStorageDirectory().getAbsolutePath(), String
                .valueOf(System.currentTimeMillis()));
        Log.d("zxz","imagePath:"+imagePath);
        if(imagePath!=null){
            File file=new File(imagePath);//将要保存图片的路径

            try {
                BufferedOutputStream bos = new BufferedOutputStream(new FileOutputStream(file));
                bitmap.compress(Bitmap.CompressFormat.JPEG, 100, bos);
                bos.flush();
                bos.close();
            } catch (IOException e) {
                e.printStackTrace();
            }
            RequestBody photoRequestBody = RequestBody.create(MediaType.parse("image/png"), file);
            MultipartBody.Part photo = MultipartBody.Part.createFormData("file", file.getName(), photoRequestBody);
            presenter.getData("71",photo);
        }

    }

    @Override
    protected void onResume() {
        super.onResume();

    }

    @Override
    public void onSuccess(MessageBean messageBean) {
        String msg = messageBean.getMsg();
        Log.e("zxz",msg);
    }

}

权限

<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
<uses-permission android:name="android.permission.CAMERA"/>