How to set the bitmap height at runtime

[chetan deol]

 Bitmap  b = Bitmap.createBitmap( view.getWidth(), view.getHeight 
(), Bitmap.Config.ARGB_8888); 
       Canvas c = new Canvas( b );    
       
       view.draw( c ); 
       FileOutputStream fos = null; 
       try {                 
                //fos = new FileOutputStream( "/sdcard/image2.png");
                fos = new FileOutputStream( ItConstants.It_Path + "/Images/"+mFilename+".jpg");
                if (fos != null) 
                { 
                		b.compress(Bitmap.CompressFormat.JPEG, 100, fos ); 
  

I am saving the text as a image.But whenever I get 2-3 paragraphs of text whatever image I get is not fitting into the bitmap.I am not able to see the complete text in one bitmap.
How do I increase the height of the bitmap dynamically.(i.e. It should depend on the text)

[chetan deol]

No reply

[Lester Burnham]

Probably because it's entirely unclear what you're trying to do. You mention "text" repeatedly, yet there is no code that deals with text of any kind.

[chetan deol]

   
import java.io.FileOutputStream;

import android.app.Activity;
import android.content.Context;
import android.graphics.Bitmap;
import android.graphics.Canvas;
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.text.Spannable;
import android.text.style.StyleSpan;
import android.util.Log;
import android.view.KeyEvent;
import android.view.View;
import android.view.animation.ScaleAnimation;
import android.widget.EditText;
import android.widget.ImageView;
import android.widget.TextView;
import android.widget.Toast;

import com.sample.it.commons.ItConstants;

public class TextToImage extends Activity implements Runnable
{ 
	static final int START_ANIM=100;
	ScaleAnimation scaleUp;
	ScaleAnimation scaleDown;
	private class AnimationHandler extends Handler{
    	@Override
    	public void handleMessage(Message msg) {
    		switch (msg.what) {
			case START_ANIM:
				//img.startAnimation(scaleDown);
				Log.d("In the TTI", "In the tti");
				saveView(sv);									
				finish();
				break;

			default:
				break;
			}    	
    	}
    }

	static ImageView img;
	
        //SomeView sv = null; 
        TextView sv = null;   
        
        private AnimationHandler animHandler;
      
    /** Called when the activity is first created. */ 
    @Override 
    public void onCreate(Bundle savedInstanceState) 
    { 
        super.onCreate(savedInstanceState);
        Log.d("In Text To Image", "In Text To Image");
        DockItConstants.isTaskFinished = false;
        animHandler= new AnimationHandler();
        
        EditText vw = new EditText(this);        
        sv = new TextView(this);
        sv.setBackgroundColor(0xff000000);
        sv.setHeight(200);
        sv.setWidth(900);
        vw.setText("The Beatles were an English rock band, formed in Liverpool in 1960, and one of the most
commercially successful and critically acclaimed acts in the history of popular music.[1] From 1962 the group
 consisted of John Lennon (rhythm guitar, vocals), Paul McCartney (bass guitar, vocals), George Harrison 
(lead guitar, vocals) and Ringo Starr (drums, vocals). Rooted in skiffle and 1950s rock and roll, the group
 later worked in many genres ranging from pop ballads to psychedelic rock, often incorporating classical
 and other elements in innovative ways. The nature of their enormous popularity, which first emerged
 as the Beatlemania fad, transformed as their songwriting grew in sophistication. The group came to 
be perceived as the embodiment of progressive ideals, seeing their influence extend into the social and 
cultural revolutions of the 1960s. With an early five-piece line-up of Lennon, McCartney, Harrison, 
Stuart Sutcliffe (bass) and Pete Best (drums), the Beatles built their reputation in Liverpool and Hamburg 
clubs over a three-year period from 1960. Sutcliffe left the group in 1961, and Best was replaced by Starr 
the following year. Moulded into a professional outfit by music store owner Brian Epstein after he offered
 to act as the group's manager, and with their musical potential enhanced by the hands-on creativity of
 producer George Martin, the Beatles achieved mainstream success in the United Kingdom in late 1962
 with their first single, Love Me Do. Gaining international popularity over the course of the next year, 
they toured extensively until 1966, then retreated to the recording studio until their break-up in 1970. 
Each then found success in an independent musical career. Lennon was shot and killed in 1980, 
and Harrison died of cancer in 2001. McCartney and Starr remain active.");
        Spannable str = vw.getText();
        
        str.setSpan(new StyleSpan(android.graphics.Typeface.BOLD), 1, str.length() - 1, Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
        
        sv.setText(str);
    
        setContentView(sv);
        sv.setVisibility(View.INVISIBLE); 
        int animationDuration =200;
        scaleUp = new ScaleAnimation(0.01f,1.3f,0.01f,1.05f,0,250);
		scaleDown = new ScaleAnimation(1.3f, 0.01f, 1.05f, 0.01f, 0, 250);
		scaleDown.setDuration(animationDuration);
		scaleDown.setFillAfter(true);        
        animHandler.sendEmptyMessageDelayed(START_ANIM, 70);             
    }   
    
    private void start() {
		// TODO Auto-generated method stub
    	onCreate(new Bundle());
	}
    
    @Override
    public boolean onCreateThumbnail(Bitmap outBitmap, Canvas canvas) {
    	// TODO Auto-generated method stub
    	return super.onCreateThumbnail(outBitmap, canvas);
    }
    
    
    @Override 
    public boolean onKeyDown( int keyCode, KeyEvent event) 
        { 
        switch( event.getKeyCode()) 
                { 
                case KeyEvent.KEYCODE_DPAD_UP: 
                        if ( sv != null ) 
                        { 
                                saveView( sv ); 
                                Toast.makeText(this, "Saved image", Toast.LENGTH_LONG);
                                return true; 
                        } 
                default: 
                } 
                return super.onKeyDown( keyCode, event ); 
        } 
    
    @Override
    protected void onResume() {
    	// TODO Auto-generated method stub
    	super.onResume();
    }
    
    @Override
    protected void onDestroy() {
    	// TODO Auto-generated method stub
    	super.onDestroy();
    	//saveView(sv);
    }
       
    private void saveView( View view ) 
    {      
      Log.d("OnSaveView : ", "OnSaveView : ");      
      Bitmap  b = Bitmap.createBitmap( view.getWidth(), view.getHeight(), Bitmap.Config.ARGB_8888);
      
      // If the cropping of the image is needed then crop the image else not
      
       Canvas c = new Canvas( b ); 
       c.drawBitmap(b, 400, 900, null);
       view.draw( c ); 
       
       FileOutputStream fos = null;
              
       try {                 
                //fos = new FileOutputStream( "/sdcard/image2.png");
                fos = new FileOutputStream("/sdcard/"+Constants.Current_Filename+".jpg");                
                if (fos != null) 
                { 
                		b.compress(Bitmap.CompressFormat.JPEG, 100, fos );                       
                        Log.d("Image created", "Image created");
                        fos.close();                        
                        System.out.println(b.toString());
                }  
            } catch( Exception e )  { 
                        Log.e("testSaveView", "Exception: " + e.toString() ); 
                        }
      
      Bitmap thumb = Bitmap.createBitmap(b, 0, 0, 100, 100);
      
      try {                 
          //fos = new FileOutputStream( "/sdcard/image2.png");
          fos = new FileOutputStream("/sdcard/It/Images/"+ItConstants.Current_Filename+".jpg");                
          if (fos != null) 
          { 
          		thumb.compress(Bitmap.CompressFormat.JPEG, 100, fos );                       
                  Log.d("Thumbnail Created", "Thumbnail Created");
                  fos.close();                        
                  System.out.println(b.toString());
                  //finish();
          } 
          //setWallpaper( b ); 
      } catch( Exception e ) 
                  { 
                  Log.e("testSaveView", "Exception: " + e.toString() ); 
                  }      
    
      Log.d("Text To Image Conversion : ", "Text to image converted successfully");
    } 

class SomeView extends View 
{ 
        public SomeView( Context context ) 
        { 
          super( context ); 
        }             
        public void onDraw( Canvas canvas ) 
        {         	
        	Log.d("OnDraw : ", "OnDraw : ");
        	saveView(sv);
        } 
}
public void run() {
	
}
}

 

Now you can think on this code.