Re: [androidbrasil-dev] Outofmemeoryerror (viewpager ) Galeria de imagens

http://developer.android.com/training/displaying-bitmaps/index.html

Lúcio Maciel
luciofm@gmail.com

On Sun, Jun 30, 2013 at 11:50 AM, Felippe dos Santos Ferreira <felippenasuacasa@gmail.com> wrote:

tah ente4ndi...

mais como limpar ????


android.os.Process.killProcess(android.os.Process.myPid());

2013/6/30 Ray da Costa <raydacosta@gmail.com>

Todas as vezes q estao e global. Todas as vezes q trocar de galaria limpa elas. Nao deixa acumular. Esta seria uma alternativa.  Veja vi pouco do seu códigoas parece que pode resolver se o primeiro carregamento funciona o segundo so tem q limpar

Em 30/06/2013 11:30, "Felippe dos Santos Ferreira" <felippenasuacasa@gmail.com> escreveu:

sabe como faço isso ?

vou pesquisar

2013/6/30 Ray da Costa <raydacosta@gmail.com>

Tenta limpar memoria.Deve estar mantendo arquivos em memoria....

Em 30/06/2013 11:23, "Felippe dos Santos Ferreira" <felippenasuacasa@gmail.com> escreveu:

faço o download de umas imagens
ai pego essas imagens e faço uma galeria usando as imagens
tenho cerca de 8 gallerias e cada galeria com 20 imagens
tudo isso em um grid layout...
dai quando vou exibir as imagens das gallerias da falta de moria, mais se a galeria é com pouca imagens  funciona perfeitamente...
mais tb se saiu de uma galeria e entro em outra da falta de memoria

segue o codigo......


public class Galeria extends Activity {
    List<String> paths;
    ArrayList<Bitmap> images;
    private String id;
    private DataBaseAdapter dbadapter;
   
    @Override
    public void onBackPressed() {
        // TODO Auto-generated method stub
        finish();
        super.onBackPressed();
    }
   
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        requestWindowFeature(Window.FEATURE_NO_TITLE);
        getWindow().addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);
        getWindow().getDecorView().setSystemUiVisibility(View.STATUS_BAR_HIDDEN);

        // ActionBar actionBar = getActionBar();
        // actionBar.show();
        // actionBar.setDisplayHomeAsUpEnabled(true);
//        getActionBar().hide();
       
        setContentView(R.layout.activity_galeria);
       
        Log.i("teste", "on create ");
       
        Intent intent = getIntent();
        id = getIntent().getStringExtra("idacessoria"); // recebo o id da galeria para buscar as imagens
        Log.i("teste", "on create "+id);
       
        dbadapter = new DataBaseAdapter();
        paths = dbadapter.getImage(getApplicationContext(), Integer.parseInt(id));//faço a busca das iamgens
       
        Log.i("teste", "on create paths  "+paths);
         
        images = new ArrayList<Bitmap>();
        for (String path : paths) {// em cada item do array de bitmap eu coloca o nome da imagem
       
            images.add(getAssetFile(path.toString()));
            Log.i("teste", "on create paths  "+paths);
        }

        ViewPager viewPager = (ViewPager) findViewById(R.id.view_pager);
        ImagePagerAdapter adapter = new ImagePagerAdapter();
        viewPager.setAdapter(adapter);

       
       
    }

    /**
     * recebe o nome do arquivo e
     * @param fileName nome do arquivo
     * @return imagem da galeria
     */
    public Bitmap getAssetFile(String fileName) {
        Bitmap bitmap = null;
        try {
           
            File filePath = getFileStreamPath(fileName);       
            bitmap = BitmapFactory.decodeFile(filePath.toString());

            return bitmap;
        } catch (Exception e) {
            // TODO Auto-generated catch block
            e.printStackTrace();

        }
        return bitmap;
    }

    private class ImagePagerAdapter extends PagerAdapter {

        @Override
        public int getCount() {
            return images.size();
        }

        @Override
        public boolean isViewFromObject(View view, Object object) {
            return view == ((ImageView) object);
//            return view == object;
        }
       
        @Override
        public void finishUpdate(View arg0) {
            // TODO Auto-generated method stub

        }
       
        @Override
        public void restoreState(Parcelable arg0, ClassLoader arg1) {
            // TODO Auto-generated method stub
        }
        @Override
        public Parcelable saveState() {
            // TODO Auto-generated method stub
            return null;
        }
        @Override
        public void startUpdate(View arg0) {
            // TODO Auto-generated method stub

        }

        @Override
        public Object instantiateItem(ViewGroup container, int position) {

            Context context = Galeria.this;
            ImageView imageView = new ImageView(context);
            int padding = context.getResources().getDimensionPixelSize(R.dimen.padding_zero);
            imageView.setPadding(padding, padding, padding, padding);
            imageView.setScaleType(ImageView.ScaleType.CENTER_INSIDE);
            imageView.setImageBitmap(images.get(position));
//            imageView.setImageBitmap(getAssetFile(paths.get(position)));

            ((ViewPager) container).addView(imageView);

            return imageView;
        }

//        @Override
//        public void destroyItem(ViewGroup container, int position, Object object) {
//            ((ViewPager) container).removeView((ImageView) object);
//        }
       
        @Override
        public void destroyItem(View collection, int position, Object o) {
                   View view = (View) o;
                ((ViewPager) collection).removeView(view);
                view = null;
               
//                 final View view = (View)o;
//                 ((ViewPager) collection).removeView(view);
        }
       

    }

}

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