Text to Image in android

Question

I am developing an application where I need to generate an Image from text and store that Image to the SDCard.
Can anyone tell me a library(just like textimagegenerator for java) I need android compatible library or source which I can use for this?

You could do a capture of the screen, but that depends of what you called text. — Jeremy D, Jan 12 '12 at 17:14
[Please reference the below url](http://stackoverflow.com/a/38365013/1223827) — Enli, Jul 14 '16 at 03:36

score 6 · Accepted Answer · answered Jan 12 '12 at 17:20

TextView textView = new TextView(activity.getContext());
textView.setText("Hello World");
textView.setDrawingCacheEnabled(true);
textView.destroyDrawingCache();
textView.buildDrawingCache();
Bitmap bitmap = getTransparentBitmapCopy(textView.getDrawingCache());


private Bitmap getTransparentBitmapCopy(Bitmap source)
{
    int width =  source.getWidth();
    int height = source.getHeight();
    Bitmap copy = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888);
    int[] pixels = new int[width * height];
    source.getPixels(pixels, 0, width, 0, 0, width, height);
    copy.setPixels(pixels, 0, width, 0, 0, width, height);
    return copy;
}

source is coming as NULL. – Prajwal Waingankar Dec 13 '21 at 19:47 — Prajwal Waingankar, Dec 13 '21 at 19:47

score 2 · Answer 2 · answered Jul 14 '16 at 04:59

Try to do this

Got the controls.

Button b1=(Button)findViewById(R.id.button1);
EditText ed1=(EditText)findViewById(R.id.editText1);
String msg=ed1.getText().toString();

Create the bitmap, canvas, paint,and invoke drawText function:

Bitmap bitmap = Bitmap.createBitmap(300, 400, Config.ARGB_8888);
Canvas canvas = new Canvas(bitmap);
canvas.drawColor(Color.CYAN);
Paint paint = new Paint();
paint.setTextAlign(Align.LEFT);// 若设置为center，则文本左半部分显示不全 paint.setColor(Color.RED);
paint.setAntiAlias(true);// 消除锯齿
paint.setTextSize(20);

canvas.drawText(msg, 20, 30, paint) ;
canvas.save(Canvas.ALL_SAVE_FLAG);
canvas.restore();

Save the image

String path = Environment.getExternalStorageDirectory() + "/abc.png";
FileOutputStream fos = new FileOutputStream(new File(path));
bitmap.compress(Bitmap.CompressFormat.PNG, 100, fos);
fos.flush();
fos.close();

It would be an issue for a sentence long enough to be within device screen - it would exceed screen on left or right. Thank you anyway! — Gleichmut, Aug 31 '23 at 15:49

score 2 · Answer 3 · answered Jan 12 '12 at 17:15

2

You can use android.graphics.Canvas.drawText() for this.

answered Jan 12 '12 at 17:15

fredley

32,953
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score 0 · Answer 4 · edited May 23 '17 at 12:09

0

Yo can have a look at this "Android save view to jpg or png" post:

Hope this helps

edited May 23 '17 at 12:09

Community

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1

answered Jan 12 '12 at 17:17

oriolpons

1,883
12
20

score 0 · Answer 5 · answered Jan 12 '12 at 17:18

Assuming you have a text view or an image view, you will do this:

    TextView tv = (TextView)findViewById(R.id.textview);
    Bitmap bp;
    bp = loadBitmapFromView(tv);

    ImageView iv = new ImageView(this);
    iv.setImageBitmap(bp);

try {
    OutputStream fOut = null;
    String path = "/sdcard/";
    File file = new File(path, "imagename here.jpg");
    fOut = new FileOutputStream(file);

    getImageBitmap(bp).compress(Bitmap.CompressFormat.JPEG, 85, fOut);
    fOut.flush();    
} catch (Exception e) {
       e.printStackTrace();
}

be sure to put this in your androidmanifest

<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />

Text to Image in android

5 Answers5

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