java - 创建文件夹并存储相机拍摄的图像

Question

请阅读我的代码询问解决方案如何创建文件夹

公共(public)类 CameraActivity 扩展了 ActionBarActivity {

private static final int ACTION_TAKE_IMAGE = 1;

Button btnImage;
ImageView imageView;

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_camera);

    imageView = (ImageView)findViewById(R.id.imageView);

    btnImage= (Button) findViewById(R.id.buttonCapture);
    btnImage.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            Intent takeVideoIntent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
            startActivityForResult(takeVideoIntent, ACTION_TAKE_IMAGE);
        }
    });
}

@onActivityResult开始

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

        if (resultCode == RESULT_OK)
        {
            try
            {
                AssetFileDescriptor imageAsset = getContentResolver().openAssetFileDescriptor(data.getData(), "r");
                FileInputStream fis = imageAsset.createInputStream();
                File root=new File(Environment.getExternalStorageDirectory(),"/Vipul/RecordImage/");
                if (!root.exists()) {
                    System.out.println("No directory");
                    root.mkdirs();
                }

                File file;
                file=new File(root,"IMG_"+System.currentTimeMillis()+".jpg" );

                FileOutputStream fos = new FileOutputStream(file);

                byte[] buf = new byte[1024];
                int len;
                while ((len = fis.read(buf)) > 0) {
                    fos.write(buf, 0, len);
                }
                fis.close();
                fos.close();

            }
            catch (Exception e)
            {
                e.printStackTrace();
            }
        }
        if(requestCode == ACTION_TAKE_IMAGE && resultCode == RESULT_OK){
            Bundle bundle = data.getExtras();
            Bitmap imageBitmap = (Bitmap) bundle.get("data");
            imageView.setImageBitmap(imageBitmap);
        }
    }
}

此代码可以工作 2.3 捕获图像，但可以工作，但不能创建未存储在我的特定文件夹中的文件夹，请询问您的答案

Answer 1

更新

//declare

     int num = 0;

//.....//


//*onclik button

Intent cameraIntent = new Intent(
                android.provider.MediaStore.ACTION_IMAGE_CAPTURE);

        //Create folder
        File imagesFolder = new File(
                Environment.getExternalStorageDirectory(), "Myfolder");
        imagesFolder.mkdirs();

        //Asign name for image
        File image = new File(imagesFolder, "Pic" + (num +1) + ".png");
        Uri uriSavedImage = Uri.fromFile(image);

        cameraIntent.putExtra(MediaStore.EXTRA_OUTPUT, uriSavedImage);

        //launch camera app with result code (forResult)
        startActivityForResult(cameraIntent, 1);


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

            if (requestCode == 1 && resultCode == RESULT_OK)
            {
                //create bitmap with image

                Bitmap bMap = BitmapFactory.decodeFile(
                        Environment.getExternalStorageDirectory() +
                                "/Myfolder/" + "Pic" + num + ".png");
                //Add bitmap to ImageView
                //Show on screen
                imageView.setImageBitmap(bMap);
 }