android网络图片搜寻——基于百度图片搜索引擎

android网络图片搜索——基于百度图片搜索引擎

最近无聊看了一下百度的图片搜索接口，于是想着利用这些接口写了个android版的图片搜索引擎。本来不打算写的，就当纪念一下晴雪吧。。

实现效果图

主要是利用百度的图片搜索引擎返回的代码进行解析，生成图片地址。

主要实现代码：

public class SyncImageLoader {private Object lock = new Object();private boolean mAllowLoad = true;private boolean firstLoad = true;private int mStartLoadLimit = 0;private int mStopLoadLimit = 0;public static Bitmap[] bitmap = new Bitmap[0];final Handler handler = new Handler();private HashMap<String, SoftReference<Drawable>> imageCache = new HashMap<String, SoftReference<Drawable>>();public interface OnImageLoadListener {public void onImageLoad(Integer t, Drawable drawable,int flag);public void onError(Integer t,int flag);}public void setLoadLimit(int startLoadLimit, int stopLoadLimit) {if (startLoadLimit > stopLoadLimit) {return;}mStartLoadLimit = startLoadLimit;mStopLoadLimit = stopLoadLimit;}public void restore() {mAllowLoad = true;firstLoad = true;}public void lock() {mAllowLoad = false;firstLoad = false;}public void unlock() {mAllowLoad = true;synchronized (lock) {lock.notifyAll();}}public void loadImage(Integer t, String imageUrl,OnImageLoadListener listener, int flag) {final OnImageLoadListener mListener = listener;final String mImageUrl = imageUrl;final Integer mt = t;final int f = flag;new Thread(new Runnable() {@Overridepublic void run() {if (!mAllowLoad) {synchronized (lock) {try {lock.wait();} catch (InterruptedException e) {e.printStackTrace();}}}if (mAllowLoad && firstLoad) {loadImage(mImageUrl, mt, mListener,f);}if (mAllowLoad && mt <= mStopLoadLimit && mt >= mStartLoadLimit) {loadImage(mImageUrl, mt, mListener,f);}}}).start();}private void loadImage(final String mImageUrl, final Integer mt,final OnImageLoadListener mListener,final int flag) {if (imageCache.containsKey(mImageUrl)) {SoftReference<Drawable> softReference = imageCache.get(mImageUrl);final Drawable d = softReference.get();if (d != null) {handler.post(new Runnable() {@Overridepublic void run() {if (mAllowLoad) {mListener.onImageLoad(mt, d,flag);}}});return;}}try {final Drawable d = loadImageFromUrl(mImageUrl);if (d != null) {imageCache.put(mImageUrl, new SoftReference<Drawable>(d));}handler.post(new Runnable() {@Overridepublic void run() {if (mAllowLoad) {mListener.onImageLoad(mt, d,flag);}}});} catch (IOException e) {handler.post(new Runnable() {@Overridepublic void run() {mListener.onError(mt,flag);}});e.printStackTrace();}}public static Drawable loadLagerImageFromUrl(String url) throws IOException {if (Environment.getExternalStorageState().equals(Environment.MEDIA_MOUNTED)) {File f = new File(Environment.getExternalStorageDirectory()+ "/netimage/cache/" + MD5.getMD5(url));if (f.exists()) {FileInputStream fis = new FileInputStream(f);Drawable d = Drawable.createFromStream(fis, "src");return d;}URL m = new URL(url);InputStream i = (InputStream) m.getContent();DataInputStream in = new DataInputStream(i);FileOutputStream out = new FileOutputStream(f);byte[] buffer = new byte[1024];int byteread = 0;while ((byteread = in.read(buffer)) != -1) {out.write(buffer, 0, byteread);}in.close();out.close();//Drawable d = Drawable.createFromStream(i, "src");return loadImageFromUrl(url);} else {URL m = new URL(url);InputStream i = (InputStream) m.getContent();Drawable d = Drawable.createFromStream(i, "src");i.close();return d;}}public static Drawable loadImageFromUrl(String url) throws IOException {if (Environment.getExternalStorageState().equals(Environment.MEDIA_MOUNTED)) {File f = new File(Environment.getExternalStorageDirectory()+ "/netimage/cache/" + MD5.getMD5(url));if (f.exists()) {//FileInputStream fis = new FileInputStream(f);//Drawable d = Drawable.createFromStream(fis, "src");Bitmap bitmap = decodeSampledBitmapFromResource(f.getPath(), 0, 150, 150);return new BitmapDrawable(bitmap);}URL m = new URL(url);InputStream i = (InputStream) m.getContent();DataInputStream in = new DataInputStream(i);FileOutputStream out = new FileOutputStream(f);byte[] buffer = new byte[1024];int byteread = 0;while ((byteread = in.read(buffer)) != -1) {out.write(buffer, 0, byteread);}in.close();out.close();//Drawable d = Drawable.createFromStream(i, "src");return loadImageFromUrl(url);} else {URL m = new URL(url);InputStream i = (InputStream) m.getContent();Drawable d = Drawable.createFromStream(i, "src");i.close();return d;}}public static Bitmap[] loadSingleImage(ArrayList<String> list) throws Exception{//Bitmap[] dra = new Bitmap[list.size()];List<Bitmap> maps = new ArrayList<Bitmap>();for(int i=0;i<list.size();){File f = new File(Environment.getExternalStorageDirectory()+ "/netimage/cache/" + MD5.getMD5(list.get(i)));if (f.exists()) {//Bitmap bitmap = decodeSampledBitmapFromResource(f.getPath(), 0, 490, 700);Bitmap bitmap = BitmapFactory.decodeFile(f.getPath());//dra[i]= bitmap;maps.add(bitmap);i++;}else{list.remove(i);}/*}else{URL m = new URL(list.get(i));InputStream is = (InputStream) m.getContent();DataInputStream in = new DataInputStream(is);FileOutputStream out = new FileOutputStream(f);byte[] buffer = new byte[1024];int byteread = 0;while ((byteread = in.read(buffer)) != -1) {out.write(buffer, 0, byteread);}in.close();out.close();dra[i]= BitmapFactory.decodeByteArray(buffer, 0, buffer.length);}*/}Bitmap[] dra = new Bitmap[maps.size()];for(int i=0;i<maps.size();i++){dra[i] = maps.get(i);}return dra;}public static Bitmap decodeSampledBitmapFromResource(String res, int resId,        int reqWidth, int reqHeight) {    // First decode with inJustDecodeBounds=true to check dimensions    final BitmapFactory.Options options = new BitmapFactory.Options();    options.inJustDecodeBounds = true;//    BitmapFactory.decodeResource(res, resId, options);    BitmapFactory.decodeFile(res,options);    // Calculate inSampleSize    options.inSampleSize = calculateInSampleSize(options, reqWidth, reqHeight);    // Decode bitmap with inSampleSize set    options.inJustDecodeBounds = false;//    return BitmapFactory.decodeResource(res, resId, options);    return BitmapFactory.decodeFile(res,options);}public static int calculateInSampleSize(            BitmapFactory.Options options, int reqWidth, int reqHeight) {    // Raw height and width of image    final int height = options.outHeight;    final int width = options.outWidth;    int inSampleSize = 1;    if (height > reqHeight || width > reqWidth) {        if (width > height) {            inSampleSize = Math.round((float)height / (float)reqHeight);        } else {            inSampleSize = Math.round((float)width / (float)reqWidth);        }    }    return inSampleSize;}}

建议在wifi下使用

http://download.csdn.net/detail/lcl15572830433/6399503