Java tutorial
package com.zdhx.androidbase.ui.account; /******************************************************************************* * Copyright 2011-2013 Sergey Tarasevich * * 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. *******************************************************************************/ import android.app.Activity; import android.content.Context; import android.content.DialogInterface; import android.content.pm.ActivityInfo; import android.graphics.Bitmap; import android.graphics.BitmapFactory; import android.os.Bundle; import android.os.Environment; import android.os.Parcelable; import android.support.v4.view.PagerAdapter; import android.support.v4.view.ViewPager; import android.view.LayoutInflater; import android.view.View; import android.view.ViewGroup; import android.widget.ProgressBar; import android.widget.TextView; import com.zdhx.androidbase.R; import com.zdhx.androidbase.ui.MainActivity; import com.zdhx.androidbase.ui.downloadui.DownloadAsyncTask; import com.zdhx.androidbase.ui.photoview.PhotoView; import com.zdhx.androidbase.ui.photoview.PhotoViewAttacher; import com.zdhx.androidbase.ui.viewpagerindicator.CirclePageIndicator; import com.zdhx.androidbase.ui.viewpagerindicator.HackyViewPager; import com.zdhx.androidbase.ui.viewpagerindicator.PageIndicator; import com.zdhx.androidbase.util.LogUtil; import com.zdhx.androidbase.util.ToastUtil; import com.zdhx.androidbase.util.lazyImageLoader.cache.ImageLoader; import com.zdhx.androidbase.util.myImageLoader.MyImageLoader; import com.zdhx.androidbase.view.dialog.ECAlertDialog; import com.zdhx.androidbase.view.dialog.ECProgressDialog; import java.io.File; import java.io.FileInputStream; import java.io.FileOutputStream; import java.io.InputStream; /** * @author Sergey Tarasevich (nostra13[at]gmail[dot]com) */ public class ImagePagerActivity extends Activity { protected ImageLoader imageLoader; protected MyImageLoader loader; private static final String STATE_POSITION = "STATE_POSITION"; private static final String IMAGES = "images"; private static final String IMAGE_POSITION = "image_index"; HackyViewPager pager; PageIndicator mIndicator; private String imgName; private ECProgressDialog dialog; private String[] compressImageUrls; @Override protected void onDestroy() { super.onDestroy(); imageLoader = null; loader = null; } public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_PORTRAIT);//? setContentView(R.layout.ac_image_pager); imageLoader = new ImageLoader(this); loader = new MyImageLoader(); dialog = new ECProgressDialog(this); Bundle bundle = getIntent().getExtras(); String[] imageUrls = bundle.getStringArray(IMAGES); compressImageUrls = imageUrls; String[] imgNames = new String[compressImageUrls.length]; int pagerPosition = bundle.getInt(IMAGE_POSITION, 0); imgNames = bundle.getStringArray("imgNames"); if (savedInstanceState != null) { pagerPosition = savedInstanceState.getInt(STATE_POSITION); } pager = (HackyViewPager) findViewById(R.id.pager); pager.setAdapter(new ImagePagerAdapter(imageUrls, this, imgNames)); pager.setCurrentItem(pagerPosition); if (imageUrls.length < 10) { mIndicator = (CirclePageIndicator) findViewById(R.id.indicator); mIndicator.setViewPager(pager); } } @Override public void onSaveInstanceState(Bundle outState) { outState.putInt(STATE_POSITION, pager.getCurrentItem()); } @Override public void onBackPressed() { super.onBackPressed(); } private class ImagePagerAdapter extends PagerAdapter { private String[] images; private String[] imgNames; private LayoutInflater inflater; private Context mContext; ImagePagerAdapter(String[] images, Context context, String[] imgNames) { this.images = images; this.mContext = context; this.imgNames = imgNames; inflater = getLayoutInflater(); } @Override public void destroyItem(ViewGroup container, int position, Object object) { ((ViewPager) container).removeView((View) object); } @Override public void finishUpdate(View container) { } @Override public int getCount() { return images.length; } @Override public Object instantiateItem(ViewGroup view, final int position) { View imageLayout = inflater.inflate(R.layout.item_pager_image, view, false); PhotoView imageView = (PhotoView) imageLayout.findViewById(R.id.image); imageView.setOnViewTapListener(new PhotoViewAttacher.OnViewTapListener() { @Override public void onViewTap(View view, float x, float y) { onBackPressed(); } }); final ProgressBar spinner = (ProgressBar) imageLayout.findViewById(R.id.loading); TextView count = (TextView) imageLayout.findViewById(R.id.count); int selectCount = position; count.setText(selectCount + 1 + "/" + images.length); if (images[position].contains("http")) { imageLoader.DisplayImage(images[position], imageView, false); imageView.setOnLongClickListener(new View.OnLongClickListener() { @Override public boolean onLongClick(View v) { ECAlertDialog.buildAlert(ImagePagerActivity.this, "?", new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { String name = imgNames[position]; File idr = Environment .getExternalStoragePublicDirectory(Environment.DIRECTORY_DOWNLOADS); File dir = new File(idr + "/jxz"); if (!dir.exists()) { dir.mkdir(); } File file = new File(dir, name); if (!file.exists()) { final DownloadAsyncTask downloadAsyncTask = new DownloadAsyncTask( new DownloadAsyncTask.DownloadResponser() { @Override public void predownload() { TreadsListViewAdapter adapter = (TreadsListViewAdapter) MainActivity.map .get("adapter"); if (adapter != null) { int position1 = (int) MainActivity.map.get("11"); adapter.doDown(position1); MainActivity.map.remove("treadsListPosition"); MainActivity.map.remove("adapter"); } } @Override public void downloading(int progress, int position) { } @Override public void downloaded(File file, int position) { ToastUtil.showMessage( file.getName() + "??"); LogUtil.w("??" + file.getAbsolutePath()); } @Override public void canceled(int position) { } }, ImagePagerActivity.this); downloadAsyncTask.execute(images[position], "aaa", position + "", name); LogUtil.w(images[position]); } else { ToastUtil.showMessage(""); return; } } }).show(); return true; } }); } else { // BitmapFactory.Options newOpts = new BitmapFactory.Options(); newOpts.inJustDecodeBounds = false; newOpts.inPurgeable = true; newOpts.inInputShareable = true; // Do not compress newOpts.inSampleSize = 1; newOpts.inPreferredConfig = Bitmap.Config.RGB_565; Bitmap bm = BitmapFactory.decodeFile(images[position], newOpts); imageView.setImageBitmap(bm); } ((ViewPager) view).addView(imageLayout, 0); return imageLayout; } /** * ?? * @param oldPath String c:/fqf.txt * @param newPath String ?? f:/fqf.txt * @return boolean */ public void copyFile(String oldPath, String newPath) { try { int bytesum = 0; int byteread = 0; File oldfile = new File(oldPath); if (oldfile.exists()) { // InputStream inStream = new FileInputStream(oldPath); // FileOutputStream fs = new FileOutputStream(newPath); byte[] buffer = new byte[1444]; int length; while ((byteread = inStream.read(buffer)) != -1) { bytesum += byteread; // ? System.out.println(bytesum); fs.write(buffer, 0, byteread); } inStream.close(); } } catch (Exception e) { System.out.println("???"); e.printStackTrace(); } } @Override public boolean isViewFromObject(View view, Object object) { return view.equals(object); } @Override public void restoreState(Parcelable state, ClassLoader loader) { } @Override public Parcelable saveState() { return null; } @Override public void startUpdate(View container) { } } }