android制作gif之GifMaker

package com.util.helper;

import android.graphics.Bitmap;
import android.util.Log;

public class GifMaker {
	private   final String TAG=this.getClass().getName();
	static
	{
	 
		try {  
			System.loadLibrary("gifflen");  
		} catch (Exception e) {
			e.printStackTrace();
			//System.err.println("WARNING: Could not load library!");  
			Log.e("Giffle","WARNING: Could not load library!");
		}  

	}
	
	public GifMaker(){
		framecount=0;
	}
	
	/**
	 * Init the gif file
	 * @param gifName name
	 * @param w width
	 * @param h height
	 * @param numColors colors
	 * @param quality
	 * @param frameDelay times
	 * @return
	 */
	public native int Init(String gifName, int w, int h, int numColors, int quality,  int frameDelay);
	public native void Close(); 
	public native int AddFrame(int[] pixels);

	public int add(String gifName,Bitmap b)
	{
		if(b==null){
			Log.e(TAG,"add bitmap is null!!!!");
		}
		
		int width= b.getWidth();
		int height= b.getHeight();
		
		int delay=5;
		if(framecount==0)
		{ 
			int ret=Init(gifName,width,height,256,100,delay);
			if( ret!=0)
			{
				Log.e(TAG, "GifUtil init failed ret："+ret);
				return -1;
			}
		}
		 
		int pixels[]=new int[width*height];	

		b.getPixels(pixels, 0, width, 0, 0, width, height);
		AddFrame(pixels);
		pixels=null;
		 
		framecount++;
		return framecount;
	}
	
	public int framecount;
	/**
	 * encode the bitmaps to gif
	 * @param fileName
	 * @param bitmaps
	 * @param delay
	 */
	public void Encode(String fileName,Bitmap[] bitmaps,int delay)
	{
		if(bitmaps==null||bitmaps.length==0)
		{
			throw new NullPointerException("Bitmaps should have content!!!");

		}
		int width=bitmaps[0].getWidth();
		int height=bitmaps[0].getHeight();

		if(Init(fileName,width,height,256,100,delay)!=0)
		{
			Log.e(TAG, "GifUtil init failed");
			return;
		}

		for(Bitmap bp:bitmaps)
		{

			int pixels[]=new int[width*height];	

			bp.getPixels(pixels, 0, width, 0, 0, width, height);
			AddFrame(pixels);
		}

		Close();

	}

}

gifflen 是