如何在修改後保存圖片

Question

我可以將圖片加載到背景，然後我也可以「繪製」它，但是當我嘗試保存圖片以便我可以將它作爲附件發送給電子郵件時，我只能弄清楚山楂搶原始圖像和我有什麼使得這裏的活動密切

public void startCamera(View v) { 
     Intent takePicture = new Intent(MediaStore.ACTION_IMAGE_CAPTURE); 
     seek.setVisibility(View.GONE); 
     if (takePicture.resolveActivity(getPackageManager()) != null) { 

      picSpot = new File(Environment.getExternalStorageDirectory(), 
        "sketch.png"); 

      outputFileUri = Uri.fromFile(picSpot); 
      takePicture.putExtra(MediaStore.EXTRA_OUTPUT, outputFileUri); 
      startActivityForResult(takePicture, REQUEST_IMAGE_CAPTURE); 
     } 
    } 

    public void sendPic(View v) { 
     Intent sharePic = new Intent(Intent.ACTION_SEND); 
     if (didsketch == false) { 

      sharePic.setType("image/png"); 
      sharePic.putExtra(Intent.EXTRA_STREAM, outputFileUri); 
      sharePic.putExtra(Intent.EXTRA_SUBJECT, "Check This Out!"); 
      sharePic.putExtra(Intent.EXTRA_TEXT, 
        "I did this on my Sketchify App!"); 
      startActivity(Intent.createChooser(sharePic, "Send Email")); 
     } else { 
      try { 
       FileOutputStream out = new FileOutputStream(finalSpot); 
       back.compress(Bitmap.CompressFormat.PNG, 90, out); 
       out.close(); 
      } catch (Exception e) { 
       e.printStackTrace(); 
      } 
      outputFileUri = Uri.fromFile(finalSpot); 
      sharePic.setType("image/png"); 
      sharePic.putExtra(Intent.EXTRA_STREAM, outputFileUri); 
      sharePic.putExtra(Intent.EXTRA_SUBJECT, "Check This Out!"); 
      sharePic.putExtra(Intent.EXTRA_TEXT, 
        "I did this on my Sketchify App!"); 
      startActivity(Intent.createChooser(sharePic, "Send Email")); 
     } 
    } 

    @Override 
    protected void onActivityResult(int requestCode, int resultCode, Intent data) { 
     sketchit.setEnabled(true); 
     if (requestCode == REQUEST_IMAGE_CAPTURE && resultCode == RESULT_OK) { 
      DisplayMetrics metrics = this.getResources().getDisplayMetrics(); 
      screenHeight = metrics.heightPixels; 
      screenWidth = metrics.widthPixels; 
      location = Environment.getExternalStorageDirectory() 
        + "/sketch.png"; 
      back = Camera_Helpers.processImage(location, screenHeight, 
        screenWidth); 
      taken = true; 
      sketchit.setEnabled(taken); 
      shareit.setEnabled(taken); 
      image.setImageBitmap(back); 
     } 
    } 

背面是修改後的位圖我試圖最終附加到電子郵件 謝謝！

Answer 1

創建文件夾目錄並將圖像保存到其中：創建您想要保存圖像的目錄。假設文件夾名稱是ImageFolder。

String location = Environment.getExternalStorageDirectory() + "/ImageFolder/"; 

//Creating Folder Directory 
File imageDir = new File(location); 
dir.mkdirs(); 

//Creating Image file 
String imageName = "sketch.png"; 

File imageFile = new File(imageDir, imageName); 

//If image file already exists then delete it. 
if (imageFile.exists()) { 
    imageFile.delete(); 
} 

//Writing the image to SDCard 
try { 
    FileOutputStream out = new FileOutputStream(imageFile); 
    back.compress(Bitmap.CompressFormat.JPEG, 100, out); 
    out.flush(); 
    out.close(); 

} catch (Exception e) { 
    e.printStackTrace(); 
}