想在 android 中的新捕获图像上添加一些文本

Question

这是我的问题：

从相机拍摄图像
在上面写一些文字
将其保存到应用程序文件夹中

我已经介绍了第一点。帮我解决剩下的两点

提前致谢

Answer 1

试试这个

1 - 将文本写入位图的代码

Bitmap bitmap = ... // your bitmap here
Canvas canvas = new Canvas(bitmap);
Paint paint = new Paint(); 
paint.setColor(Color.BLACK); 
paint.setTextSize(10); 
canvas.drawText("Some Text here", x, y, paint);

2 - 将位图保存到存储器的代码

// Assume block needs to be inside a Try/Catch block.
String path = Environment.getExternalStorageDirectory().toString();
OutputStream fOut = null;

File file = new File(path, "File.jpg"); 
fOut = new FileOutputStream(file);

pictureBitmap.compress(Bitmap.CompressFormat.JPEG, 85, fOut); // saving the Bitmap to a file compressed as a JPEG with 85% compression rate
fOut.flush(); // Not really required
fOut.close(); // do not forget to close the stream

MediaStore.Images.Media.insertImage(getContentResolver(),file.getAbsolutePath(),file.getName(),file.getName());

来源：Save bitmap to location

How to write text on an image

想在 android 中的新捕获图像上添加一些文本

want to add some text over a newly captured image in android

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