如何在編輯文本中從可滾動內容創建位圖圖像？

Question

我想捕捉圖像中的編輯文本內容。但文字可以滾動。

如何從編輯文本中捕捉可滾動內容？

沒有滾動我使用下面的鏈接繼續做..

Create Bitmap Image from EditText & its content

請幫我解決這個問題

Answer 1

下面是示例代碼

請盡你所能。 ...

Bitmap bitmap = BitmapFactory.decodeResource(this.getResources(), 
      R.drawable.edittextimage);// get the image same as your EditText 

    bitmap = convertToMutable(bitmap);// converting the bitmap to mutable 
    Canvas cs = new Canvas(bitmap); 

    int h = bitmap.getHeight(); 
    int w = bitmap.getWidth(); 
    Paint pt = new Paint(); 
    pt.setColor(Color.GREEN); 
    String iam = "your text that get from the Edit Text"; 
    cs.drawText(iam, 0, iam.length(), (h/2) + 10, (w/2)/2, pt); 
    pt.setColor(Color.RED); 
    cs.drawText("this is praki", 0, 13, h/2, w/3, pt); 

    Save_to_SD(bitmap , path)//save the bitmap in to sdcard 

convertToMutable（bit地圖）了Methode ....

public static Bitmap convertToMutable(Bitmap imgIn) { 
    try { 
     // this is the file going to use temporally to save the bytes. 
     // This file will not be a image, it will store the raw image data. 
     File file = new File(Environment.getExternalStorageDirectory() 
       + File.separator + "temp.tmp"); 

     // Open an RandomAccessFile 
     // Make sure you have added uses-permission 
     // android:name="android.permission.WRITE_EXTERNAL_STORAGE" 
     // into AndroidManifest.xml file 
     RandomAccessFile randomAccessFile = new RandomAccessFile(file, "rw"); 

     // get the width and height of the source bitmap. 
     int width = imgIn.getWidth(); 
     int height = imgIn.getHeight(); 
     Bitmap.Config type = imgIn.getConfig(); 

     // Copy the byte to the file 
     // Assume source bitmap loaded using options.inPreferredConfig = 
     // Config.ARGB_8888; 
     FileChannel channel = randomAccessFile.getChannel(); 
     MappedByteBuffer map = channel.map(FileChannel.MapMode.READ_WRITE, 
       0, imgIn.getRowBytes() * height); 
     imgIn.copyPixelsToBuffer(map); 
     // recycle the source bitmap, this will be no longer used. 
     imgIn.recycle(); 
     System.gc();// try to force the bytes from the imgIn to be released 

     // Create a new bitmap to load the bitmap again. Probably the memory 
     // will be available. 
     imgIn = Bitmap.createBitmap(width, height, type); 
     map.position(0); 
     // load it back from temporary 
     imgIn.copyPixelsFromBuffer(map); 
     // close the temporary file and channel , then delete that also 
     channel.close(); 
     randomAccessFile.close(); 

     // delete the temp file 
     file.delete(); 

    } catch (FileNotFoundException e) { 
     e.printStackTrace(); 
    } catch (IOException e) { 
     e.printStackTrace(); 
    } 

    return imgIn; 
} 

Save_to_SD（位圖，路徑）梅索德....

public static void Save_to_SD(Bitmap bm, String image_name) { 

    // String extStorageDirectory = 
    // Environment.getExternalStorageDirectory() 
    // .toString(); 
    // String meteoDirectory_path = extStorageDirectory + 
    // "/Weather_Belgium"; 

    OutputStream outStream = null; 
    File file = new File(image_name); 
    try { 
     outStream = new FileOutputStream(file); 
     bm.compress(Bitmap.CompressFormat.PNG, 100, outStream); 
     outStream.flush(); 
     outStream.close(); 

     Log.i("Hub", "OK, Image Saved to SD"); 
     Log.i("Hub", 
       "height = " + bm.getHeight() + ", width = " + bm.getWidth()); 

    } catch (FileNotFoundException e) { 

     e.printStackTrace(); 
     Log.i("Hub", "FileNotFoundException: " + e.toString()); 

    } catch (IOException e) { 

     e.printStackTrace(); 
     Log.i("Hub", "IOException: " + e.toString()); 
    } 

}