unity调用 安卓相册

把 avtivity.java 里面的内容拷贝到你的mainActivity里面

在unity里面调用TakePhoto

SdkUtil.SendMessageOpenPhoto(FILE_NAME);这个我注释掉的地方是回调到unity里面的
访问路径用 Application.persistentDataPath/FILE_NAME 就能拿到图片

public void TakePhoto(String str,String path)
    {
        if(str.equals("TakePhoto"))
        {
              Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);  
              intent.putExtra(MediaStore.EXTRA_OUTPUT, Uri.fromFile(new File(Environment.getExternalStorageDirectory(), "temp.jpg")));  
              startActivityForResult(intent, PHOTOHRAPH);  
        }else
        {
               Intent intent = new Intent(Intent.ACTION_PICK, null);  
               intent.setDataAndType(MediaStore.Images.Media.EXTERNAL_CONTENT_URI, IMAGE_UNSPECIFIED);  
               startActivityForResult(intent, PHOTOZOOM);  
        }
    }
      public void startPhotoZoom(Uri uri) {  
            Intent intent = new Intent("com.android.camera.action.CROP");  
            intent.setDataAndType(uri, IMAGE_UNSPECIFIED);  
            intent.putExtra("crop", "true");  
            // aspectX aspectY  ? ??     
            intent.putExtra("aspectX", 1);  
            intent.putExtra("aspectY", 1);  
            // outputX outputY  ?ü ??     
            intent.putExtra("outputX", 300);  
            intent.putExtra("outputY", 300);  
            intent.putExtra("return-data", true);  
            startActivityForResult(intent, PHOTORESOULT);  
        }  
      public void SaveBitmap(Bitmap bitmap) throws IOException {

            FileOutputStream fOut = null;
            
            //注解1
            String path = "/mnt/sdcard/Android/data/com.sainthyler.muffin/files";
            try {
                  //查看这个路径是否存在，
                  //如果并没有这个路径，
                  //创建这个路径
                  File destDir = new File(path);
                  if (!destDir.exists()) 
                  {
                  
                      destDir.mkdirs();
                  
                  }
                
                fOut = new FileOutputStream(path + "/" + FILE_NAME) ;
            } catch (FileNotFoundException e) {
                e.printStackTrace();
            }
            //将Bitmap对象写入本地路径中，Unity在去相同的路径来读取这个文件
            bitmap.compress(Bitmap.CompressFormat.JPEG, 50, fOut);
            try {
                fOut.flush();
            } catch (IOException e) {
                e.printStackTrace();
            }
            try {
                fOut.close();
            } catch (IOException e) {
                e.printStackTrace();
            }
            //发送成功消息到unity里面
            //SdkUtil.SendMessageOpenPhoto(FILE_NAME);
        }


 @Override
    protected void onActivityResult(int requestCode, int resultCode, Intent data) 
    {
         if (resultCode != NONE) 
         {  
             // 返回的路径
            if (requestCode == PHOTOHRAPH) {  
                //查看图片路径
                File picture = new File(Environment.getExternalStorageDirectory() + "/temp.jpg");  
                startPhotoZoom(Uri.fromFile(picture));  
            }  
              
            if (data == null)  
                return;  
              
            //   ?       ??  
            if (requestCode == PHOTOZOOM) {  
                startPhotoZoom(data.getData());  
            }  
            //         
            if (requestCode == PHOTORESOULT) {  
                Bundle extras = data.getExtras();  
                if (extras != null) {  

                    Bitmap photo = extras.getParcelable("data");
                 
                    try {
                        SaveBitmap(photo);
                    } catch (IOException e) {
                        // TODO Auto-generated catch block
                        e.printStackTrace();
                    }
                }  
      
            }  
            
         }
        super.onActivityResult(requestCode, resultCode, data);
    }