comment afficher un video gallery

**perloutta** · 24/03/2010, 17h05

salut à tous,
grâce à deux tuto j'ai reussi à afficher une gallerie de photo chargée à partir de mon SDcard, mais en fait je veux plus précisamment afficher une gallerie de vidéo (aussi se trouvant dans la SDcard)
d'abord est ce que c'est faisable sous android 2.1?
si c'est le cas,quelles sont les modifications que je dois affecter à mon ancien code?
voici le code:

Code :

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package com.pfe.galleryExample;
 
import java.io.File;
import java.util.ArrayList;
import java.util.List;
import com.pfe.galleryExample.R;
import android.app.Activity;
import android.content.Context;
import android.content.res.TypedArray;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.os.Bundle;
import android.view.View;
import android.view.ViewGroup;
import android.widget.AdapterView;
import android.widget.BaseAdapter;
import android.widget.Gallery;
import android.widget.ImageView;
import android.widget.AdapterView.OnItemClickListener;
 
public class GalleryExample extends Activity {
    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle icicle) { 
        super.onCreate(icicle); 
        setContentView(R.layout.main); 
 
        /* Find the gallery defined in the main.xml 
         * Apply a new (custom) ImageAdapter to it. */ 
        Gallery g = (Gallery) findViewById(R.id.gallery) ;
               g.setAdapter(new ImageAdapter(this, ReadSDCard())); 
 
               g.setOnItemClickListener(new OnItemClickListener() {   
                   public void onItemClick(AdapterView<?> parent,   
                     View v, int position, long id) {   
                   }   
               });
    }
 
 
        private List<String> ReadSDCard()   
        {   
         List<String> tFileList = new ArrayList<String>();   
 
         //It have to be matched with the directory in SDCard   
         File f = new File("/sdcard");   
 
         File[] files=f.listFiles();   
 
         for(int i=0; i<files.length; i++)   
         {   
          File file = files[i];   
          /*It's assumed that all file in the path  
            are in supported type*/   
          tFileList.add(file.getPath());   
         }   
 
         return tFileList; 
 
 
 
    }
 
    public class ImageAdapter extends BaseAdapter { 
        /** The parent context */ 
           private Context myContext; 
 
           /** All images to be displayed. 
            * Put some images to project-folder: 
            * '/res/drawable/uvw.xyz' .*/ 
           /*private int[] myImageIds = { 
                  R.drawable.image_1, 
                  R.drawable.image_2, 
                  R.drawable.image_3, 
                  R.drawable.image_4 
           }; */
 
           int mGalleryItemBackground;   
           //private Context mContext;   
           private List<String> FileList;
 
 
 
           /** Simple Constructor saving the 'parent' context. */ 
           public ImageAdapter(Context c, List<String> fList) {
        	   this.myContext = c; 
 
        	   FileList = fList;   
               TypedArray a = c.obtainStyledAttributes(R.styleable.Gallery1);   
               mGalleryItemBackground = a.getResourceId(   
             R.styleable.Gallery1_android_galleryItemBackground,0);   
               a.recycle(); 
 
           } 
 
           /** Returns the amount of images we have defined. */ 
           //public int getCount() { return this.myImageIds.length; } 
           public int getCount() { return FileList.size();  }   
 
           /* Use the array-Positions as unique IDs */ 
           public Object getItem(int position) { return position; } 
           public long getItemId(int position) { return position; }
 
 
           /** Returns a new ImageView to 
            * be displayed, depending on 
            * the position passed. */ 
           public View getView(int position, View convertView, ViewGroup parent) { 
               /*ImageView i = new ImageView(this.myContext); 
 
               i.setImageResource(this.myImageIds[position]); 
               /* Image should be scaled as width/height are set. */ 
              // i.setScaleType(ImageView.ScaleType.FIT_XY); 
               /* Set the Width/Height of the ImageView. */ 
              /* i.setLayoutParams(new Gallery.LayoutParams(150, 150)); 
               return i; */
        	   ImageView i = new ImageView(myContext);   
 
               Bitmap bm = BitmapFactory.decodeFile(   
                 FileList.get(position).toString());   
               i.setImageBitmap(bm);   
 
               i.setLayoutParams(new Gallery.LayoutParams(150, 100));   
               i.setScaleType(ImageView.ScaleType.FIT_XY);   
               i.setBackgroundResource(mGalleryItemBackground);   
 
               return i; 
 
           } 
 
           ////
           public TypedArray obtainStyledAttributes(int theme) {   
        	    // TODO Auto-generated method stub   
        	    return null;   
        	}   
           ////
 
           /** Returns the size (0.0f to 1.0f) of the views 
            * depending on the 'offset' to the center. */ 
           public float getScale(boolean focused, int offset) { 
             /* Formula: 1 / (2 ^ offset) */ 
               return Math.max(0, 1.0f / (float)Math.pow(2, Math.abs(offset))); 
           }
    }    
}

merciiiiiiiiiiiiiiiiiiiiiiii d'avance

**perloutta** · 25/03/2010, 13h51

re!
bon pour creer une gallerie video il faut utiliser l'API

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import android.provider.MediaStore.Video.Thumbnails ;

aussi il faut utiliser des curseurs puisque MediaStore est la BD ou le Smartphone stocke ses données média
j'ai trouvé un tutorial qui explique comment creer image gallery en utilisant les curseurs (autrement 2eme methode que celle indiqué dans le poste précédent )mais pour video gallery y 'a pas encore de tuto vu que android.provider.MediaStore.Video.Thumbnails est supporté a partir de android 2.0
voici le code de image gallery

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package image.Thumbnails;
 
import  image.Thumbnails.R;
import android.app.Activity;
import android.content.ContentResolver;
import android.content.Context;
import android.content.Intent;
import android.database.Cursor;
import android.graphics.Bitmap;
import android.net.Uri;
import android.os.Bundle;
import android.provider.MediaStore;
import android.view.View;
import android.view.ViewGroup;
import android.view.View.OnClickListener;
import android.widget.AdapterView;
import android.widget.BaseAdapter;
import android.widget.GridView;
import android.widget.ImageView;
import android.widget.AdapterView.OnItemClickListener;
//
import android.provider.MediaStore.Video.Thumbnails ;
 
public class ImageThumbnailsActivity extends Activity {
      /** Called when the activity is first created. */
      private Cursor imagecursor, actualimagecursor;
      private int image_column_index, actual_image_column_index;
      GridView imagegrid;
      private int count;
      @Override
      public void onCreate(Bundle savedInstanceState) {
            super.onCreate(savedInstanceState);
            setContentView(R.layout.main);
            init_phone_image_grid();
      }
 
 
      private void init_phone_image_grid() {
 
           /* String[] img = { MediaStore.Video.Thumbnails._ID };
            imagecursor = managedQuery(MediaStore.Video.Thumbnails.EXTERNAL_CONTENT_URI, img, null, null, MediaStore.Video.Thumbnails.VIDEO_ID + "");
            image_column_index = imagecursor.getColumnIndexOrThrow(MediaStore.Video.Thumbnails._ID);
            count = imagecursor.getCount(); 
            imagegrid = (GridView) findViewById(R.id.PhoneImageGrid);
            imagegrid.setAdapter(new ImageAdapter(getApplicationContext()));
            */
    	  String[] img = { MediaStore.Video.Thumbnails._ID };
    	  ContentResolver cr = getContentResolver(); 
    	  imagecursor = cr.query(MediaStore.Video.Media.EXTERNAL_CONTENT_URI, img, null, null, null); 
    	  if (imagecursor.moveToNext()) { 
    		     int id = imagecursor.getInt(0); 
    		     Bitmap b = MediaStore.Video.Thumbnails.getThumbnail(cr, id, MediaStore.Video.Thumbnails.MINI_KIND, null); 
    		     //Log.d(TAG, "onCreate bitmap " + b); 
    		     ImageView iv = (ImageView) findViewById(R.id.thumbnail); 
    		     iv.setImageBitmap(b); 
 
 
            iv.setOnClickListener(new OnClickListener()  {
                  @SuppressWarnings("unchecked")
 
 
 
 
 
                  public void onClick(AdapterView parent, View v, int position, long id) {
                        System.gc();
                        String[] proj = { MediaStore.Video.Media.DATA };
                        actualimagecursor = managedQuery(MediaStore.Video.Media.EXTERNAL_CONTENT_URI, proj, null, null, null);
                        actual_image_column_index = actualimagecursor.getColumnIndexOrThrow(MediaStore.Video.Media.DATA);
                        actualimagecursor.moveToPosition(position);
                        String i = actualimagecursor.getString(actual_image_column_index);
                        System.gc();
                        Intent intent = new Intent(getApplicationContext(), ViewImage.class);
                        intent.putExtra("filename", i);
                        startActivity(intent);
                  }
 
				@Override
				public void onClick(View v) {
					// TODO Auto-generated method stub
 
				}
            });
 
    	  }
 
      class ImageAdapter extends BaseAdapter {
 
    	  private Context mContext;
            public ImageAdapter(Context c) {mContext = c;}
            public int getCount() {return count;}
            public Object getItem(int position) {return position;}
            public long getItemId(int position) {return position;}
 
 
            public View getView(int position,View convertView,ViewGroup parent) {
                  System.gc();
                  ImageView i = new ImageView(mContext.getApplicationContext());
                  if (convertView == null) {
                        imagecursor.moveToPosition(position);
                        int id = imagecursor.getInt(image_column_index);
                        i.setImageURI(Uri.withAppendedPath(MediaStore.Video.Thumbnails.EXTERNAL_CONTENT_URI, "" + id));
                        i.setScaleType(ImageView.ScaleType.CENTER_CROP);
                        i.setLayoutParams(new GridView.LayoutParams(92, 92));
                  }
                  else {
                        i = (ImageView) convertView;
                  }
                  return i;
            }
      }
 
}}

ce code m'affiche un thumbnail d'un seul vidéo pourtant j'ai trois vidéo dans la SDcard de plus quand je clique la dessus il ne se selctionne meme pas

pouvez vous le corriger? y'a un truc qui cloche

**perloutta** · 26/03/2010, 10h32

toujours la gallère !
j'ai un problème dans la ligne en rouge, j'arrive pas à résoudre pourtant dans le Log error n'affiche aucune erreur
SVP concentrez vous à la ligne en rouge

Code :

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package image.Thumbnails;

import android.app.Activity;
import android.content.ContentResolver;
import android.content.Context;
import android.content.Intent;
import android.content.res.TypedArray;
import android.database.Cursor;
import android.graphics.Bitmap;
import android.net.Uri;
import android.os.Bundle;
import android.provider.MediaStore;
import android.util.Log;
import android.view.View;
import android.view.ViewGroup;
import android.view.View.OnClickListener;
import android.widget.AdapterView;
import android.widget.BaseAdapter;
import android.widget.Gallery;
import android.widget.ImageView;
import android.widget.AdapterView.OnItemClickListener;

public class ImageThumbnailsActivity extends Activity  {
      /** Called when the activity is first created. */
      private Cursor imagecursor, actualimagecursor;
      private int image_column_index, actual_image_column_index;
     
      private int count;
      @Override
      public void onCreate(Bundle savedInstanceState) {
            super.onCreate(savedInstanceState);
            setContentView(R.layout.main);
            Gallery gal = (Gallery) findViewById(R.id.gallery) ;
            gal.setAdapter(new ImageAdapter(this)); 
            //gal.setOnItemClickListener(new OnItemClickListener() );
            //gal.setOnItemClickListener(new OnItemClickListener() {   
              //  public void onItemClick(AdapterView<?> parent, View v, int position, long id) {   
                //}   
           // });
        
            init_phone_image_grid();
    
      }
      
      
      private void init_phone_image_grid() {

           /* String[] img = { MediaStore.Video.Thumbnails._ID };
            imagecursor = managedQuery(MediaStore.Video.Thumbnails.EXTERNAL_CONTENT_URI, img, null, null, MediaStore.Video.Thumbnails.VIDEO_ID + "");
            image_column_index = imagecursor.getColumnIndexOrThrow(MediaStore.Video.Thumbnails._ID);
            count = imagecursor.getCount(); 
            imagegrid = (GridView) findViewById(R.id.PhoneImageGrid);
            imagegrid.setAdapter(new ImageAdapter(getApplicationContext()));
            */
    	  String[] img = { MediaStore.Video.Thumbnails._ID,
    			  //MediaStore.Video.VideoColumns.TITLE,	//
    			  //MediaStore.Video.VideoColumns.DURATION //
    	  };
    	  //String selection = MediaStore.Video.VideoColumns.TITLE + " = \"" + OUR_TITLE + "\""; // Our images
    	  ContentResolver cr = getContentResolver(); 
    	  imagecursor = cr.query(MediaStore.Video.Media.EXTERNAL_CONTENT_URI, img, null, null, null); 
    	  if (imagecursor.moveToNext()) { 
    		     int id = imagecursor.getInt(0); 
    		     Bitmap b = MediaStore.Video.Thumbnails.getThumbnail(cr, id, MediaStore.Video.Thumbnails.MINI_KIND, null); 
    		    
    		     ImageView iv = (ImageView) findViewById(R.id.thumbnail);
    		     
    		     iv.setImageBitmap(b); 
    	  //}  
    	  //imagecursor.close();
    		     
    		     iv.setOnItemClickListener(new OnItemClickListener()  {
                 
				
          
				public void OnItemClick(AdapterView<?> parent, View v, int position, long id) {
                        System.gc();
                        String[] proj = { MediaStore.Video.Media.DATA };
                        actualimagecursor = managedQuery(MediaStore.Video.Media.EXTERNAL_CONTENT_URI, proj, null, null, null);
                        actual_image_column_index = actualimagecursor.getColumnIndexOrThrow(MediaStore.Video.Media.DATA);
                        actualimagecursor.moveToPosition(position);
                        String i = actualimagecursor.getString(actual_image_column_index);
                        System.gc();
                        Intent intent = new Intent(getApplicationContext(), ViewImage.class);
                        intent.putExtra("filename", i);
                        startActivity(intent);
                  }

				/*public void onClick(View v) {
					// TODO Auto-generated method stub
					
				}*/
            });
            
    	  } 
    	  imagecursor.close();
    	
    	  }

      
      
 public class ImageAdapter extends BaseAdapter {
            
    	  private Context mContext;
    	  int mGalleryItemBackground;  
    	  
    	  public ImageAdapter(Context c) {
       	   this.mContext = c; 
          
       	  // FileList = fList;   
              TypedArray a = c.obtainStyledAttributes(R.styleable.Gallery);   
              mGalleryItemBackground = a.getResourceId(R.styleable.Gallery_android_galleryItemBackground,0);   
              a.recycle(); 
          
          } 
    	  
           // public ImageAdapter(Context c) {mContext = c;}
            public int getCount() {return count;}
            public Object getItem(int position) {return position;}
            public long getItemId(int position) {return position;}
            
            
           
            public View getView(int position,View convertView,ViewGroup parent) {
                  System.gc();
                  //Log.i(TAG, "Get view = " + position); ////////
                  ImageView i = new ImageView(mContext.getApplicationContext());
                  imagecursor.requery();
                  
                  if (convertView == null) {
                        imagecursor.moveToPosition(position);
                        int id = imagecursor.getInt(image_column_index);
                        i.setImageURI(Uri.withAppendedPath(MediaStore.Video.Thumbnails.EXTERNAL_CONTENT_URI, "" + id));
                        i.setLayoutParams(new Gallery.LayoutParams(150, 100)); //
                        i.setScaleType(ImageView.ScaleType.CENTER_CROP);
                        //i.setLayoutParams(new GridView.LayoutParams(92, 92));
                        i.setBackgroundResource(mGalleryItemBackground);  //
                  }
                  else {
                        i = (ImageView) convertView;
                  }
                  return i;
                  
            }
            
            
          ////
            public TypedArray obtainStyledAttributes(int theme) {   
         	    // TODO Auto-generated method stub   
         	    return null;   
         	}   
            ////

            /** Returns the size (0.0f to 1.0f) of the views 
             * depending on the 'offset' to the center. */ 
            public float getScale(boolean focused, int offset) { 
              /* Formula: 1 / (2 ^ offset) */ 
                return Math.max(0, 1.0f / (float)Math.pow(2, Math.abs(offset))); 
            }
                  
                  //////////////////
                 /* 
                  ImageView i = new ImageView(myContext);   
           	   
                  Bitmap bm = BitmapFactory.decodeFile(   
                    FileList.get(position).toString());   
                  i.setImageBitmap(bm);   
                 
                  i.setLayoutParams(new Gallery.LayoutParams(150, 100));   
                  i.setScaleType(ImageView.ScaleType.FIT_XY);   
                  i.setBackgroundResource(mGalleryItemBackground);   
                 
                  return i; */
                  ///////////////////
            }
      }

quand je mets la curseur sur la ligne le message suivant est affiché:

The type new AdapterView.OnItemClickListener(){} must implement the inherited abstract method AdapterView.OnItemClickListener.onItemClick(AdapterView<?>, View, int, long)

**Pffft** · 30/03/2010, 16h00

must implement the inherited abstract method AdapterView.OnItemClickListener.onItemClick

Je croix que le problemme n'est qu'un typo - ton méthod commence par O majuscule: public void OnItemClick.

Ta gallérie a l'air très bien réalisé mais je mentionne pour mémoire que tu as aussi l'option d'utiliser la gallérie native comme ca :

Code :

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Intent intent =  new Intent(Intent.ACTION_GET_CONTENT);
intent.setType("video/*");
startActivityForResult(intent, 1);

Et récupérer la ressource sélectionnée dans ton implémentation de onActivityResult.

J'espère que tu le trouve utile.

**perloutta** · 30/03/2010, 16h04

merci pour la réponse je vais tester ça

comment afficher un video gallery

Android

Vue hybride

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