Android'de Gridview'de Resim Galerisi nasıl oluşturulur?

Question

GridView ile bir resim galerisi uygulamak istediğim için bir ihtiyacım var. Android geliştirici web sitesinde Hello gallery kullanmayı denedim. Ama GridView çalışmıyor.

Answer 1

kullanın Düzeni için bu XML bildirin: özel galerisi istedikleri gibi gallery.xml

<?xml version="1.0" encoding="utf-8"?> 
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" 
    android:orientation="vertical" android:layout_width="fill_parent" 
    android:layout_height="fill_parent" android:background="@drawable/bg_child"> 

    <FrameLayout android:id="@+id/FrameLayout01" 
     android:layout_width="fill_parent" android:layout_height="fill_parent"> 
     <FrameLayout android:id="@+id/LinearLayout01" 
      android:layout_gravity="top" android:layout_height="50dp" android:layout_width="fill_parent"> 
      <TextView android:id="@+id/TextView01" 
       android:layout_width="wrap_content" android:layout_height="wrap_content" android:textStyle="bold" android:layout_gravity="center_vertical" android:layout_marginLeft="30dp" android:gravity="center_vertical" android:drawableLeft="@drawable/photo_frame" android:textColor="@color/grey" android:text="@string/photogallery_txt"></TextView> 
      <Button android:layout_gravity="right" android:id="@+id/btnMoreInfo" android:layout_marginRight="5dp" android:layout_marginTop="5dp" android:textStyle="bold" android:background="@drawable/my_child_button" android:layout_width="100dp" android:layout_height="40dp" android:text="@string/moreinfo_txt"></Button> 
     </FrameLayout> 
     <GridView xmlns:android="http://schemas.android.com/apk/res/android" 
      android:id="@+id/gridview" android:layout_width="fill_parent" 
      android:layout_height="fill_parent" android:columnWidth="90dp" 
      android:numColumns="auto_fit" android:verticalSpacing="10dp" 
      android:horizontalSpacing="10dp" android:stretchMode="columnWidth" 
      android:gravity="center" android:layout_gravity="bottom" 
      android:layout_marginTop="50dp"></GridView> 
    </FrameLayout> 
</LinearLayout> 

Etkinlik Dosyası GalleryPage.java

public class GalleryPage extends Activity { 

    // private Integer[] mImageIds = {R.drawable.splash, R.drawable.splash, 
    // R.drawable.splash, R.drawable.splash, R.drawable.splash, 
    // R.drawable.splash, R.drawable.splash}; 

    private static Uri[] mUrls = null; 
    private static String[] strUrls = null; 
    private String[] mNames = null; 
    private GridView gridview = null; 
    private Cursor cc = null; 
    private Button btnMoreInfo = null; 
    private ProgressDialog myProgressDialog = null; 

    @Override 
    protected void onCreate(Bundle savedInstanceState) { 
     // TODO Auto-generated method stub 
     super.onCreate(savedInstanceState); 

     CommonFunctions.setLanguage(getBaseContext()); 

     requestWindowFeature(Window.FEATURE_NO_TITLE); 
     setContentView(R.layout.gallery); 
     btnMoreInfo = (Button) findViewById(R.id.btnMoreInfo); 
     // It have to be matched with the directory in SDCard 
     cc = this.getContentResolver().query(
       MediaStore.Images.Media.EXTERNAL_CONTENT_URI, null, null, null, 
       null); 

     // File[] files=f.listFiles(); 
     if (cc != null) { 

      myProgressDialog = new ProgressDialog(GalleryPage.this); 
      myProgressDialog.requestWindowFeature(Window.FEATURE_NO_TITLE); 
      myProgressDialog.setMessage(getResources().getString(R.string.pls_wait_txt)); 
      //myProgressDialog.setIcon(R.drawable.blind); 
      myProgressDialog.show(); 

      new Thread() { 
       public void run() { 
        try { 
         cc.moveToFirst(); 
         mUrls = new Uri[cc.getCount()]; 
         strUrls = new String[cc.getCount()]; 
         mNames = new String[cc.getCount()]; 
         for (int i = 0; i < cc.getCount(); i++) { 
          cc.moveToPosition(i); 
          mUrls[i] = Uri.parse(cc.getString(1)); 
          strUrls[i] = cc.getString(1); 
          mNames[i] = cc.getString(3); 
          //Log.e("mNames[i]",mNames[i]+":"+cc.getColumnCount()+ " : " +cc.getString(3)); 
         } 

        } catch (Exception e) { 
        } 
        myProgressDialog.dismiss(); 
       } 
      }.start(); 
     gridview = (GridView) findViewById(R.id.gridview); 
     gridview.setAdapter(new ImageAdapter(this)); 

     gridview.setOnItemClickListener(new OnItemClickListener() { 
      public void onItemClick(AdapterView<?> parent, View v, 
        int position, long id) { 
       Intent i = new Intent(GalleryPage.this, BigImage.class); 
       Log.e("intent : ", ""+position); 
       i.putExtra("imgUrls", strUrls); 
       i.putExtra("position", position); 
       startActivity(i); 
      } 
     }); 

     } 

     btnMoreInfo.setOnClickListener(new OnClickListener() { 

      @Override 
      public void onClick(View v) { 
       // TODO Auto-generated method stub 
       Intent i = new Intent(GalleryPage.this, ChildLogin.class); 
       startActivity(i); 
      } 
     }); 
    } 

    /** 
    * This class loads the image gallery in grid view. 
    * 
    */ 
    public class ImageAdapter extends BaseAdapter { 
     private Context mContext; 

     public ImageAdapter(Context c) { 
      mContext = c; 
     } 

     public int getCount() { 
      return cc.getCount(); 
     } 

     public Object getItem(int position) { 
      return null; 
     } 

     public long getItemId(int position) { 
      return 0; 
     } 

     // create a new ImageView for each item referenced by the Adapter 
     public View getView(int position, View convertView, ViewGroup parent) { 
      View v = convertView; 
      LayoutInflater vi = (LayoutInflater) getSystemService(Context.LAYOUT_INFLATER_SERVICE); 
      v = vi.inflate(R.layout.galchild, null); 

      try { 

       ImageView imageView = (ImageView) v.findViewById(R.id.ImageView01); 
       //imageView.setScaleType(ImageView.ScaleType.FIT_XY); 
       // imageView.setPadding(8, 8, 8, 8); 
       Bitmap bmp = decodeURI(mUrls[position].getPath()); 
       //BitmapFactory.decodeFile(mUrls[position].getPath()); 
       imageView.setImageBitmap(bmp); 
       //bmp. 
       TextView txtName = (TextView) v.findViewById(R.id.TextView01); 
       txtName.setText(mNames[position]); 
      } catch (Exception e) { 

      } 
      return v; 
     } 
    } 

    @Override 
    protected void onStart() { 
     // TODO Auto-generated method stub 
     super.onStart(); 
     FlurryAgent.onStartSession(this, "***"); 
    } 
    // @Override 
    // protected void onStop() { 
    // TODO Auto-generated method stub 
    // super.onStop(); 
    // FlurryAgent.onEndSession(this); 

    // } 

    /** 
    * This method is to scale down the image 
    */ 
    public Bitmap decodeURI(String filePath){ 

     Options options = new Options(); 
     options.inJustDecodeBounds = true; 
     BitmapFactory.decodeFile(filePath, options); 

     // Only scale if we need to 
     // (16384 buffer for img processing) 
     Boolean scaleByHeight = Math.abs(options.outHeight - 100) >= Math.abs(options.outWidth - 100); 
     if(options.outHeight * options.outWidth * 2 >= 16384){ 
      // Load, scaling to smallest power of 2 that'll get it <= desired dimensions 
      double sampleSize = scaleByHeight 
       ? options.outHeight/100 
       : options.outWidth/100; 
      options.inSampleSize = 
       (int)Math.pow(2d, Math.floor(
       Math.log(sampleSize)/Math.log(2d))); 
     } 

     // Do the actual decoding 
     options.inJustDecodeBounds = false; 
     options.inTempStorage = new byte[512]; 
     Bitmap output = BitmapFactory.decodeFile(filePath, options); 

     return output; 
    } 
} 

Answer 2

Bu eğitici Hello Grid View, gridview ile Resim Galerisi oluşturma konusunda iyi bir temel örnek sağlar, ancak resim çekilebilir kaynaktır, gereksinim gereksiniminiz olarak genişletmeniz gerekir.

Answer 3

Bkz. Bu hello-gridview. Daha fazla referans için bu da

• gallery-into-grid-style-menu
• image-gallery-with-checkbox-in-grid-to-select-multiple/
• add-capture-button-and-update-gallery/

Yukarıdaki linkler size çok yararlı olduğunu düşünüyorum bakın. Ve soru göndermeden önce aklınızda bulundurun ilk önce android developer. Bu Android hakkında tüm en iyi bilgileri sağlayacaktır. Hala herhangi bir sorun alıyorsanız o zaman bana

Answer 4

görünüyor Sizin için çok zaman alacaktır,

Çalışmanız için Custom Camera Gallery library'u almanızı öneririm.

Grid View'da Fotoğraflar/Videolar'ı istediğiniz gibi alacaksınız. [- Android Geliştiricileri Merhaba GridView Eğitim] (http://developer.android.com/guide/tutorials/views:

Answer 5

private static final int SELECT_PHOTO = 100; 
ImageView image; 

@Override 
protected void onCreate(Bundle savedInstanceState) { 
    super.onCreate(savedInstanceState); 
    setContentView(R.layout.activity_main); 

    image = (ImageView) findViewById(R.id.imageView2); 
} 

public void pickAImage(View view) { 
    Intent photoPickerIntent = new Intent(Intent.ACTION_PICK); 
    photoPickerIntent.setType("image/*"); 
    startActivityForResult(photoPickerIntent, SELECT_PHOTO); 
} 

@Override 
protected void onActivityResult(int requestCode, int resultCode, Intent imageReturnedIntent) { 
    super.onActivityResult(requestCode, resultCode, imageReturnedIntent); 

    switch (requestCode) { 
     case SELECT_PHOTO: 
      if (resultCode == RESULT_OK) { 
       Uri selectedImage = imageReturnedIntent.getData(); 
       InputStream imageStream = null; 

       try { 
        imageStream = getContentResolver().openInputStream(selectedImage); 
       } 
       catch (FileNotFoundException e) { 
        e.printStackTrace(); 
       } 

       Bitmap yourSelectedImage = BitmapFactory.decodeStream(imageStream); 
       image.setImageURI(selectedImage);// To display selected image in image view 
      } 
     } 
    } 
}