Android将文本添加到图片并保存
我想在我的图片中放置一个Android将文本添加到图片并保存,android,camera,android-camera,android-camera-intent,Android,Camera,Android Camera,Android Camera Intent,我想在我的图片中放置一个textView,然后保存它,但我不确定如何将文本插入图片中 我可以在图片上附加图像并保存它,它可以工作,但现在我想在图片中插入textView 这是我的密码: PictureCallback cameraPictureCallbackJpeg = new PictureCallback() { @Override public void onPictureTaken(byte[] data, Camera camera) { // TODO Auto-gen
textView
,然后保存它,但我不确定如何将文本插入图片中
我可以在图片上附加图像并保存它,它可以工作,但现在我想在图片中插入textView
这是我的密码:
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;
}
;
};
如果您只需要“文本”,而不一定需要TextView
,则可以使用直接在画布上绘制文本
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);
如果确实需要它是
TextView
,可以将视图转换为位图,然后使用drawBitmap()
在画布上绘制。有关如何转换的示例,请参见。我应该在myPaint中添加什么?用于定义文本的外观。对齐方式、颜色、字体等。您可能只需传递null
,但我不知道默认的绘制是什么样子。我从未将其用于文本。@Geobits什么是cameraBitmap
?