Java tutorial
/******************************************************************************* * Copyright 2011, 2012 Chris Banes. * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. *******************************************************************************/ package com.meet.ychmusic.activity; import android.content.Context; import android.content.Intent; import android.graphics.Bitmap; import android.graphics.BitmapFactory; import android.os.Bundle; import android.support.v4.view.PagerAdapter; import android.support.v4.view.ViewPager; import android.util.Log; import android.view.View; import android.view.ViewGroup; import android.widget.ProgressBar; import android.widget.TextView; import com.meet.api.PFInterface; import com.meet.common.HackyViewPager; import com.meet.ychmusic.BaseActivity; import com.meet.ychmusic.R; import com.nostra13.universalimageloader.core.DisplayImageOptions; import com.nostra13.universalimageloader.core.ImageLoader; import com.nostra13.universalimageloader.core.ImageLoaderConfiguration; import com.nostra13.universalimageloader.core.assist.FailReason; import com.nostra13.universalimageloader.core.assist.ImageScaleType; import com.nostra13.universalimageloader.core.display.FadeInBitmapDisplayer; import com.nostra13.universalimageloader.core.listener.SimpleImageLoadingListener; import uk.co.senab.photoview.PhotoView; public class PhotoDetailsActivity extends BaseActivity implements ViewPager.OnPageChangeListener { private static final String TAG = "PhotoDetailsActivity"; int index = 0; private String[] album; SamplePagerAdapter mAdapter; TextView pageText; protected ImageLoader imageLoader = ImageLoader.getInstance();// jar // private DisplayImageOptions options; private DisplayImageOptions options; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); imageLoader.init(ImageLoaderConfiguration.createDefault(PhotoDetailsActivity.this)); options = new DisplayImageOptions.Builder().showImageForEmptyUri(R.drawable.pic_load_hd) .showImageOnFail(R.drawable.ic_delete).resetViewBeforeLoading().cacheOnDisc() .imageScaleType(ImageScaleType.EXACTLY).bitmapConfig(Bitmap.Config.RGB_565) .displayer(new FadeInBitmapDisplayer(300)).build(); album = getIntent().getStringArrayExtra("album"); index = getIntent().getIntExtra("index", 0); setContentView(R.layout.activity_image_brower); if (album != null) { pageText = (TextView) findViewById(R.id.pageText); pageText.setText(String.format("%d/%d", index + 1, album.length)); } ViewPager mViewPager = (HackyViewPager) findViewById(R.id.view_pager); mAdapter = new SamplePagerAdapter(album); mViewPager.setAdapter(mAdapter); mViewPager.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View view) { finish(); } }); mViewPager.setClickable(true); mViewPager.setCurrentItem(index, false); mViewPager.setOnPageChangeListener(this); } @Override protected void initViews() { } @Override protected void initEvents() { } @Override public void onPageScrolled(int position, float positionOffset, int positionOffsetPixels) { } @Override public void onPageSelected(int position) { if (album != null) { pageText.setText(String.format("%d/%d", position + 1, album.length)); } } @Override public void onPageScrollStateChanged(int state) { } class SamplePagerAdapter extends PagerAdapter { // private static int[] sDrawables = { R.drawable.pic_people_1_hd, R.drawable.pic_people_1_hd, R.drawable.pic_people_1_hd, // R.drawable.pic_people_1_hd, R.drawable.pic_people_1_hd, R.drawable.pic_people_1_hd }; String[] album; public SamplePagerAdapter(String[] album) { this.album = album; } @Override public int getCount() { return album.length; } @Override public View instantiateItem(ViewGroup container, int position) { String uri = PFInterface.imageAttachmentUrl(album[position]); View imageLayout = getLayoutInflater().inflate(R.layout.pro_imageshow, container, false); final PhotoView photoView = (PhotoView) imageLayout.findViewById(R.id.image); final ProgressBar spinner = (ProgressBar) imageLayout.findViewById(R.id.loading); final String imgUrl = uri; imageLoader.displayImage(imgUrl, photoView, options, new SimpleImageLoadingListener() { @Override public void onLoadingStarted(String imageUri, View view) { spinner.setVisibility(View.VISIBLE); } @Override public void onLoadingFailed(String imageUri, View view, FailReason failReason) { String message = null; switch (failReason.getType()) { case IO_ERROR: message = "Input/Output error"; break; case DECODING_ERROR: message = "Image can't be decoded"; break; case NETWORK_DENIED: message = "Downloads are denied"; break; case OUT_OF_MEMORY: message = "Out Of Memory error"; break; case UNKNOWN: message = "Unknown error"; break; } showCustomToast(message); spinner.setVisibility(View.GONE); } @Override public void onLoadingComplete(String imageUri, View view, Bitmap loadedImage) { spinner.setVisibility(View.GONE); } }); ((ViewPager) container).addView(imageLayout, 0); return imageLayout; } @Override public void destroyItem(ViewGroup container, int position, Object object) { container.removeView((View) object); } @Override public boolean isViewFromObject(View view, Object object) { return view == object; } } public static Intent createIntent(Context context, String[] array, int index) { Intent intent = new Intent(); intent.setClass(context, PhotoDetailsActivity.class); intent.putExtra("album", array); intent.putExtra("index", index); return intent; } public static Intent createIntent(Context context, String item) { String[] array = { item }; Intent intent = new Intent(); intent.setClass(context, PhotoDetailsActivity.class); intent.putExtra("album", array); intent.putExtra("index", 0); return intent; } }