Android更換頭像上傳

AlertDialog.Builder builder = new AlertDialog.Builder(Main2Activity.this);
builder.setTitle("添加圖片");
String[] items = { "選擇本地照片", "拍照" };
builder.setNegativeButton("取消", null);
builder.setItems(items, new DialogInterface.OnClickListener() {
    @Override
    public void onClick(DialogInterface dialog, int which) {
        switch (which) {
            case CHOOSE_PICTURE: // 選擇本地照片
                Intent openAlbumIntent = new Intent(
                        Intent.ACTION_GET_CONTENT);
                openAlbumIntent.setType("image/*");
                //用startActivityForResult方法，待會兒重寫onActivityResult()方法，拿到圖片做裁剪操作
                startActivityForResult(openAlbumIntent, CHOOSE_PICTURE);
                break;
            case TAKE_PICTURE: // 拍照
                Intent openCameraIntent = new Intent(
                        MediaStore.ACTION_IMAGE_CAPTURE);
                tempUri = Uri.fromFile(new File(Environment
                        .getExternalStorageDirectory(), "temp_image.jpg"));
                // 將拍照所得的相片保存到SD卡根目錄
                openCameraIntent.putExtra(MediaStore.EXTRA_OUTPUT, tempUri);
                startActivityForResult(openCameraIntent, TAKE_PICTURE);
                break;
        }
    }
});
builder.show();

/**
     * 上傳服務器
     * @param mobile
     * @param file
     */
    public void touimg(String mobile, File file){
        Map<String,Object> params=new HashMap<>();
        params.put("uid",mobile);
        OkHttpClient okHttpClient=new OkHttpClient();
        MultipartBody.Builder builder=new MultipartBody.Builder().setType(MultipartBody.FORM);
        RequestBody requestBody=RequestBody.create(MediaType.parse("image/*"),file);
        builder.addFormDataPart("file",file.getName(),requestBody);
        if(params!=null){
            for (Map.Entry entry : params.entrySet()) {
                builder.addFormDataPart(valueOf(entry.getKey()), valueOf(entry.getValue()));
            }
            Request request=new Request.Builder().url(Api.ICONIMG_API).post(builder.build()).build();
            Call call = okHttpClient.newCall(request);
            call.enqueue(new Callback() {
                @Override
                public void onFailure(Call call, IOException e) {
                    System.out.println("=======失敗了===");
                }
                @Override
                public void onResponse(Call call, Response response) throws IOException {
                    System.out.println("=======成功了===");
                }
            });
        }
    }
    @Override
    public void onActivityResult(int requestCode, int resultCode, Intent data) {
        super.onActivityResult(requestCode, resultCode, data);
        if (resultCode == MainActivity.RESULT_OK) {
            switch (requestCode) {
                case TAKE_PICTURE:
                    cutImage(tempUri); // 對圖片進行裁剪處理 拍照
                    break;
                case CHOOSE_PICTURE:
                    cutImage(data.getData()); // 對圖片進行裁剪處理
                    break;
                case CROP_SMALL_PICTURE:
                    if (data != null) {
                        try {
                            setImageToView(data); // 讓剛纔選擇裁剪得到的圖片顯示在界面上
                        } catch (IOException e) {
                            e.printStackTrace();
                        }
                    }
                    break;
            }
        }
    }
    /**
     * 裁剪圖片方法實現
     */
    protected void cutImage(Uri uri) {
        if (uri == null) {
            Log.i("alanjet", "The uri is not exist.");
        }
        tempUri = uri;
        Intent intent = new Intent("com.android.camera.action.CROP");
        //com.android.camera.action.CROP這個action是用來裁剪圖片用的
        intent.setDataAndType(uri, "image/*");
        // 設置裁剪
        intent.putExtra("crop", "true");
        // aspectX aspectY 是寬高的比例
        intent.putExtra("aspectX", 1);
        intent.putExtra("aspectY", 1);
        // outputX outputY 是裁剪圖片寬高
        intent.putExtra("outputX", 150);
        intent.putExtra("outputY", 150);
        intent.putExtra("return-data", true);
        startActivityForResult(intent, CROP_SMALL_PICTURE);
    }
    /**
     * 保存裁剪之後的圖片數據
     */
    protected void setImageToView(Intent data) throws IOException {
        Bundle extras = data.getExtras();
        if (extras != null) {
            mBitmap = extras.getParcelable("data");
            //這裏圖片是方形的，可以用一個工具類處理成圓形（很多頭像都是圓形，這種工具類網上很多不再詳述）
            System.out.println("============="+mBitmap.toString());
            saveFile(mBitmap,"icon_bai.jpg");//存到本地
            System.out.println("dianjial");
            iv_icon.setImageBitmap(mBitmap);//顯示圖片
        }
    }
    /**
     * bitmap 轉換成file文件 .jpeg
     * @param bm
     * @param fileName
     * @throws IOException
     */
    public void saveFile(Bitmap bm, String fileName) throws IOException {
        String path = getSDPath() +"/revoeyee/";
        File dirFile = new File(path);
        if(!dirFile.exists()){
            dirFile.mkdir();
        }
        File myCaptureFile = new File(path + fileName);
        //bitmip 保存到本地緩存
        //BufferedOutputStream bos = new BufferedOutputStream(new FileOutputStream(myCaptureFile));
        FileOutputStream bos=new FileOutputStream(myCaptureFile);
        bm.compress(Bitmap.CompressFormat.JPEG, 80, bos);
        touimg(uid,myCaptureFile);
        /**
         * 上傳服務器
         */
//        HashMap<String,Object> map=new HashMap<>();
//        map.put("mobile",name);
//        post_file(Api.ICONIMG_API,map,myCaptureFile);
        bos.flush();
        bos.close();
    }
    /**
     * 獲取路徑
     * @return
     */
    public static String getSDPath(){
        File sdDir = null;
        boolean sdCardExist = Environment.getExternalStorageState().equals(android.os.Environment.MEDIA_MOUNTED); //判斷sd卡是否存在
        if (sdCardExist)
        {
            sdDir = Environment.getExternalStorageDirectory();//獲取跟目錄
        }
        return sdDir.toString();
    }

    public void btn_user_tiaozhuan(View v){
        startActivity(new Intent(this,SousuoActivity.class));
    }