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The source code is released under:
Apache License
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package com.globant.mobile.handson; /*from w ww. j av a2s .c om*/ import java.io.File; import java.io.IOException; import android.annotation.TargetApi; import android.content.Context; import android.content.Intent; import android.content.res.AssetManager; import android.net.Uri; import android.os.Build; import android.os.Bundle; import android.support.v4.app.Fragment; import android.view.ActionMode; import android.view.ContextMenu; import android.view.ContextMenu.ContextMenuInfo; import android.view.LayoutInflater; import android.view.Menu; import android.view.MenuInflater; import android.view.MenuItem; import android.view.View; import android.view.View.OnClickListener; import android.view.ViewGroup; import android.widget.ImageView; import com.globant.mobile.handson.media.BitmapFetcher; import com.globant.mobile.handson.media.task.BitmapWorker; import com.globant.mobile.handson.media.task.MustacheWorker; import com.globant.mobile.handson.media.task.WorkerListener; public class ImageDetailFragment extends Fragment implements View.OnLongClickListener, WorkerListener<String> { private static final String IMAGE_DATA_EXTRA = "extra_image_data"; private String mImageUrl; private ImageView mImageView; private BitmapFetcher mImageFetcher; private MustacheWorker mMustacheWorker; private ActionMode mActionMode; private boolean modified = false; private boolean share = false; /** * Factory method to generate a new instance of the fragment given an image number. * * @param imageUrl The image url to load * @return A new instance of ImageDetailFragment with imageNum extras */ public static ImageDetailFragment newInstance(String imageUrl) { final ImageDetailFragment f = new ImageDetailFragment(); final Bundle args = new Bundle(); args.putString(IMAGE_DATA_EXTRA, imageUrl); f.setArguments(args); return f; } /** * Empty constructor as per the Fragment documentation */ public ImageDetailFragment() {} /** * Populate image using a url from extras, use the convenience factory method * {@link ImageDetailFragment#newInstance(String)} to create this fragment. */ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); mImageUrl = getArguments() != null ? getArguments().getString(IMAGE_DATA_EXTRA) : null; mMustacheWorker = new MustacheWorker(this.getActivity()); mMustacheWorker.setWorkerListener(this); } @Override public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { // Inflate and locate the main ImageView final View v = inflater.inflate(R.layout.fragment_image_detail, container, false); mImageView = (ImageView) v.findViewById(R.id.pictureFrame); mImageView.setDrawingCacheEnabled(true); //Setting the Context Menu for the GridVew id API level is lower than Honeycomb if(Build.VERSION.SDK_INT < Build.VERSION_CODES.HONEYCOMB){ registerForContextMenu(mImageView); }else{ mImageView.setOnLongClickListener(this); } return v; } @Override public void onActivityCreated(Bundle savedInstanceState) { super.onActivityCreated(savedInstanceState); // Use the parent activity to load the image asynchronously into the ImageView (so a single // cache can be used over all pages in the ViewPager if (ImageDetailActivity.class.isInstance(getActivity())) { mImageFetcher = ((ImageDetailActivity) getActivity()).getImageFetcher(); mImageFetcher.loadImage(mImageUrl, mImageView, "false", null); } // Pass clicks on the ImageView to the parent activity to handle if (OnClickListener.class.isInstance(getActivity()) && Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB) { mImageView.setOnClickListener((OnClickListener) getActivity()); } } @Override public void onCreateContextMenu(ContextMenu menu, View view, ContextMenuInfo menuInfo){ super.onCreateContextMenu(menu, view, menuInfo); MenuInflater inflater = this.getActivity().getMenuInflater(); inflater.inflate(R.menu.image_detail, menu); } @Override public void onPause(){ super.onPause(); } @Override public void onDestroy() { super.onDestroy(); if (mImageView != null) { // Cancel any pending image work BitmapWorker.cancelWork(mImageView); mImageView.setImageDrawable(null); } if(mMustacheWorker != null){ mMustacheWorker.unRegisterListener(); } } @TargetApi(Build.VERSION_CODES.HONEYCOMB) @Override public boolean onLongClick(View view) { //Setting the Context Action Bar if API Level is Honeycomb and higher if(Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB){ if(mActionMode != null){ return false; } final AssetManager manager = this.getActivity().getAssets(); ActionMode.Callback mActionModeCallback = new ActionMode.Callback() { @Override public boolean onPrepareActionMode(ActionMode mode, Menu menu) { return false; } @Override public void onDestroyActionMode(ActionMode mode) { mActionMode = null; } @TargetApi(Build.VERSION_CODES.ICE_CREAM_SANDWICH) @Override public boolean onCreateActionMode(ActionMode mode, Menu menu) { // Inflate a menu resource providing context menu items MenuInflater inflater = mode.getMenuInflater(); inflater.inflate(R.menu.image_detail, menu); return true; } @TargetApi(Build.VERSION_CODES.ICE_CREAM_SANDWICH) @Override public boolean onActionItemClicked(ActionMode mode, MenuItem item) { switch(item.getItemId()){ case R.id.action_mustache:{ mImageFetcher.loadImage(mImageUrl, mImageView, "true", manager); modified = true; mode.finish(); // Action picked, so close the CAB return true; } case R.id.action_share:{ if(modified){ //Saves the modified picture before share it mMustacheWorker.saveMustachedPicture(mImageUrl); modified = false; share = true; //Sharing goes after the save mustache finishes see the onTaskCompleted method }else{ getShareIntent(mImageUrl); } mode.finish();// Action picked, so close the CAB return true; } case R.id.action_save:{ if(modified){ mMustacheWorker.saveMustachedPicture(mImageUrl); modified = false; share = false; } mode.finish();// Action picked, so close the CAB return true; } default: return false; } } }; mActionMode = this.getActivity().startActionMode(mActionModeCallback); view.setSelected(true); return true; }else{ return false; } } private void getShareIntent(String bitmapPath) { //Create the intent Intent shareIntent = new Intent(); shareIntent.setAction(Intent.ACTION_SEND); shareIntent.putExtra(Intent.EXTRA_STREAM, Uri.fromFile(new File(bitmapPath))); shareIntent.setType("image/jpeg"); startActivity(Intent.createChooser(shareIntent, getResources().getText(R.string.action_share))); } @Override public void onTaskCompleted(String result) { this.mImageUrl = result; if(share){ getShareIntent(this.mImageUrl); } } }