1 package com.android.ex.photo; 2 3 import android.database.Cursor; 4 import android.os.Bundle; 5 import android.support.v4.app.Fragment; 6 import android.support.v4.content.Loader; 7 8 import com.android.ex.photo.adapters.PhotoPagerAdapter; 9 import com.android.ex.photo.fragments.PhotoViewFragment; 10 import com.android.ex.photo.loaders.PhotoBitmapLoaderInterface.BitmapResult; 11 12 public interface PhotoViewCallbacks { 13 14 public static final int BITMAP_LOADER_AVATAR = 1; 15 public static final int BITMAP_LOADER_THUMBNAIL = 2; 16 public static final int BITMAP_LOADER_PHOTO = 3; 17 18 /** 19 * Listener to be invoked for screen events. 20 */ 21 public static interface OnScreenListener { 22 23 /** 24 * The full screen state has changed. 25 */ onFullScreenChanged(boolean fullScreen)26 public void onFullScreenChanged(boolean fullScreen); 27 28 /** 29 * A new view has been activated and the previous view de-activated. 30 */ onViewActivated()31 public void onViewActivated(); 32 33 /** 34 * Called when a right-to-left touch move intercept is about to occur. 35 * 36 * @param origX the raw x coordinate of the initial touch 37 * @param origY the raw y coordinate of the initial touch 38 * @return {@code true} if the touch should be intercepted. 39 */ onInterceptMoveLeft(float origX, float origY)40 public boolean onInterceptMoveLeft(float origX, float origY); 41 42 /** 43 * Called when a left-to-right touch move intercept is about to occur. 44 * 45 * @param origX the raw x coordinate of the initial touch 46 * @param origY the raw y coordinate of the initial touch 47 * @return {@code true} if the touch should be intercepted. 48 */ onInterceptMoveRight(float origX, float origY)49 public boolean onInterceptMoveRight(float origX, float origY); 50 } 51 52 public static interface CursorChangedListener { 53 /** 54 * Called when the cursor that contains the photo list data 55 * is updated. Note that there is no guarantee that the cursor 56 * will be at the proper position. 57 * @param cursor the cursor containing the photo list data 58 */ onCursorChanged(Cursor cursor)59 public void onCursorChanged(Cursor cursor); 60 } 61 addScreenListener(int position, OnScreenListener listener)62 public void addScreenListener(int position, OnScreenListener listener); 63 removeScreenListener(int position)64 public void removeScreenListener(int position); 65 addCursorListener(CursorChangedListener listener)66 public void addCursorListener(CursorChangedListener listener); 67 removeCursorListener(CursorChangedListener listener)68 public void removeCursorListener(CursorChangedListener listener); 69 setViewActivated(int position)70 public void setViewActivated(int position); 71 onNewPhotoLoaded(int position)72 public void onNewPhotoLoaded(int position); 73 onFragmentPhotoLoadComplete(PhotoViewFragment fragment, boolean success)74 public void onFragmentPhotoLoadComplete(PhotoViewFragment fragment, 75 boolean success); 76 toggleFullScreen()77 public void toggleFullScreen(); 78 isFragmentActive(Fragment fragment)79 public boolean isFragmentActive(Fragment fragment); 80 onFragmentVisible(PhotoViewFragment fragment)81 public void onFragmentVisible(PhotoViewFragment fragment); 82 isFragmentFullScreen(Fragment fragment)83 public boolean isFragmentFullScreen(Fragment fragment); 84 onCursorChanged(PhotoViewFragment fragment, Cursor cursor)85 public void onCursorChanged(PhotoViewFragment fragment, Cursor cursor); 86 onCreateBitmapLoader(int id, Bundle args, String uri)87 public Loader<BitmapResult> onCreateBitmapLoader(int id, Bundle args, String uri); 88 89 /** 90 * Returns the adapter associated with this activity. 91 */ getAdapter()92 public PhotoPagerAdapter getAdapter(); 93 } 94