Android将文字添加到图片并保存

时间:2013-08-01 19:08:47

标签: android camera android-camera android-camera-intent

我想在我的照片中加Textiew并保存,但我不确定如何将文字插入图片中。

我可以将图片附加到我的图片上保存,但它可以正常工作,但现在我想在图片中插入Textiew

这是我的代码:

PictureCallback cameraPictureCallbackJpeg = new PictureCallback() 
{  
@Override
public void onPictureTaken(byte[] data, Camera camera) 
{
  // TODO Auto-generated method stub   
  Bitmap cameraBitmap = BitmapFactory.decodeByteArray(data, 0, data.length);

  wid = cameraBitmap.getWidth();
  hgt = cameraBitmap.getHeight();

  Bitmap newImage = Bitmap.createBitmap(wid, hgt, Bitmap.Config.ARGB_8888);
  Canvas canvas = new Canvas(newImage);
  canvas.drawBitmap(cameraBitmap, 0f, 0f, null);
  Drawable drawable = getResources().getDrawable(R.drawable.love);
  drawable.setBounds(20, 20, 260, 160);
  drawable.draw(canvas);

  File storagePath = new File(Environment.getExternalStorageDirectory() + "/MyPicture/"); 
  storagePath.mkdirs(); 

  File myImage = new File(storagePath,Long.toString(System.currentTimeMillis()) + ".jpg");

  try
  {
    FileOutputStream out = new FileOutputStream(myImage);
    newImage.compress(Bitmap.CompressFormat.JPEG, 80, out);


    out.flush();
    out.close();
  }
  catch(FileNotFoundException e)
  {
    Log.d("In Saving File", e + "");    
  }
  catch(IOException e)
  {
    Log.d("In Saving File", e + "");
  }

  camera.startPreview();

  drawable = null;

  newImage.recycle();
  newImage = null;

  cameraBitmap.recycle();
  cameraBitmap = null;
}
;
};

1 个答案:

答案 0 :(得分:0)

如果您只想要“文字”,而不一定是TextView,则可以使用drawText()直接在“画布”上绘制文字。

只需将其更改为:

  Canvas canvas = new Canvas(newImage);
  canvas.drawBitmap(cameraBitmap, 0f, 0f, null);
  canvas.drawText("some text here", x, y, myPaint);

  ...

  newImage.compress(Bitmap.CompressFormat.JPEG, 80, out);

如果您确定需要它是TextView,可以将视图转换为位图,然后使用drawBitmap()在画布上绘制它。有关如何转换它的示例,请参阅this answer