How to draw text On image?

Question

I want to draw text on image ( for saving that image with text ). i have image view i set bitmap to that image i want to Draw the text on image (text entered by user ). i tried this before saving.....

void saveImage() {     File myDir=new File("/sdcard/saved_images");     myDir.mkdirs();     Random generator = new Random();     int n = 10000;     n = generator.nextInt(n);     String fname = "Image-"+ n +".jpg";     File file = new File (myDir, fname);     if (file.exists ()) file.delete ();      try {            FileOutputStream out = new FileOutputStream(file);            originalBitmap.compress(Bitmap.CompressFormat.JPEG, 90, out);            out.flush();            out.close();      } catch (Exception e) {            e.printStackTrace();     } } 

Xml code is..

<FrameLayout       android:id="@+id/framelayout"      android:layout_marginTop="30dip"      android:layout_height="fill_parent"       android:layout_width="fill_parent">       <ImageView            android:id="@+id/ImageView01"           android:layout_alignParentTop="true"           android:layout_height="wrap_content"            android:layout_width="wrap_content"/>       <TextView android:id="@+id/text_view2"           android:layout_marginTop="20dip"           android:layout_width="wrap_content"            android:text="SampleText"           android:textSize="12pt"           android:layout_alignTop="@+id/ImageView01"            android:layout_height="wrap_content"/>    </FrameLayout> 

Answer 1

As suggested by Vladislav Skoumal, try this method:

public Bitmap drawTextToBitmap(Context mContext,  int resourceId,  String mText) {     try {          Resources resources = mContext.getResources();          float scale = resources.getDisplayMetrics().density;          Bitmap bitmap = BitmapFactory.decodeResource(resources, resourceId);          android.graphics.Bitmap.Config bitmapConfig =   bitmap.getConfig();          // set default bitmap config if none          if(bitmapConfig == null) {            bitmapConfig = android.graphics.Bitmap.Config.ARGB_8888;          }          // resource bitmaps are imutable,          // so we need to convert it to mutable one          bitmap = bitmap.copy(bitmapConfig, true);           Canvas canvas = new Canvas(bitmap);          // new antialised Paint          Paint paint = new Paint(Paint.ANTI_ALIAS_FLAG);          // text color - #3D3D3D          paint.setColor(Color.rgb(110,110, 110));          // text size in pixels          paint.setTextSize((int) (12 * scale));          // text shadow          paint.setShadowLayer(1f, 0f, 1f, Color.DKGRAY);           // draw text to the Canvas center          Rect bounds = new Rect();          paint.getTextBounds(mText, 0, mText.length(), bounds);          int x = (bitmap.getWidth() - bounds.width())/6;          int y = (bitmap.getHeight() + bounds.height())/5;           canvas.drawText(mText, x * scale, y * scale, paint);           return bitmap;     } catch (Exception e) {         // TODO: handle exception          return null;     }  } 

call this method

Bitmap bmp =drawTextToBitmap(this,R.drawable.aa,"Hello Android"); img.setImageBitmap(bmp); 

the output

Answer 2

Updated SaveImage() method, to support text drawing.

void saveImage() {     File myDir=new File("/sdcard/saved_images");     myDir.mkdirs();     Random generator = new Random();     int n = 10000;     n = generator.nextInt(n);     String fname = "Image-"+ n +".jpg";     File file = new File (myDir, fname);     if (file.exists ()) file.delete ();      try {         FileOutputStream out = new FileOutputStream(file);          // NEWLY ADDED CODE STARTS HERE [             Canvas canvas = new Canvas(originalBitmap);              Paint paint = new Paint();             paint.setColor(Color.WHITE); // Text Color             paint.setTextSize(12); // Text Size             paint.setXfermode(new PorterDuffXfermode(PorterDuff.Mode.SRC_OVER)); // Text Overlapping Pattern             // some more settings...              canvas.drawBitmap(originalBitmap, 0, 0, paint);             canvas.drawText("Testing...", 10, 10, paint);         // NEWLY ADDED CODE ENDS HERE ]          originalBitmap.compress(Bitmap.CompressFormat.JPEG, 90, out);         out.flush();         out.close();     } catch (Exception e) {        e.printStackTrace();     } } 

Let me know if this works for you.

Shash