/** * 在指定图片上指定位置添加文字 * * @param context * @param id * @param text * @return */ public static Drawable addTextOnDrawable(Context context, int id, String text) { Bitmap bmp = BitmapFactory.decodeResource(context.getResources(), id); int w = bmp.getWidth(); int h = bmp.getHeight(); Bitmap newb = Bitmap.createBitmap(w, h, Config.ARGB_8888); Canvas cv = new Canvas(newb); cv.drawBitmap(bmp, 0, 0, null); Paint p = new Paint(); Typeface font = Typeface.create(Typeface.SERIF, Typeface.BOLD_ITALIC); p.setColor(Color.BLACK); p.setTypeface(font); p.setAlpha(127); p.setTextSize(18); cv.drawText(text, w * 0.15f, h * 0.85f, p); cv.save(Canvas.ALL_SAVE_FLAG); cv.restore(); return new BitmapDrawable(newb); }/** * 获取一个动画图片 * * @param context * @param icon * @param num * @return */ public static AnimationDrawable getAnimationDrawable(Context context, String icon, int num) { AnimationDrawable frameAnimation = new AnimationDrawable(); for (int i = 1; i <= num; i++) { Drawable frame = context.getResources().getDrawable( Utils.getDrawableID(context, icon + i)); frameAnimation.addFrame(frame, 200); } frameAnimation.setOneShot(false); return frameAnimation; }public class TestGestureActivity extends Activity implements GestureOverlayView.OnGestureListener, OnGesturingListener { private Gesture gesture; private int i =0; private Button button; private GestureOverlayView gestrues; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); button=(Button) this.findViewById(R.id.test_btn); gestrues=(GestureOverlayView) this.findViewById(R.id.gestures); gestrues.setFadeOffset(6000); gestrues.addOnGesturePerformedListener(listener); gestrues.addOnGestureListener(this); gestrues.addOnGesturingListener(this); button.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { gestrues.clear(false); } }); } OnGesturePerformedListener listener=new OnGesturePerformedListener() { @Override public void onGesturePerformed(GestureOverlayView overlay, Gesture gesture) { Bitmap bm = gesture.toBitmap(240, 240, 0, Color.YELLOW); ImageView im = new ImageView(TestGestureActivity.this); im = (ImageView) findViewById(R.id.image); if(bm != null){ im.setImageBitmap(bm); } if(Environment.getExternalStorageState().endsWith(Environment.MEDIA_MOUNTED)){ String dir=Environment.getExternalStorageDirectory().getAbsolutePath(); i++; File images=new File(dir+"/gestureImages"); if(!images.exists()){ images.mkdirs(); } File image=new File(images.getAbsolutePath()+"/gesture"+i+".png"); FileOutputStream out=null; try { image.createNewFile(); out =new FileOutputStream(image); boolean result=bm.compress(CompressFormat.PNG, 100, out); if(result){ Toast.makeText(TestGestureActivity.this, "gesture已保存在/sdcard/gestureImages/下", Toast.LENGTH_SHORT).show(); }else{ Toast.makeText(TestGestureActivity.this, "gesture保存失败", Toast.LENGTH_SHORT).show(); } } catch (FileNotFoundException e) { e.printStackTrace(); } catch (IOException e) { e.printStackTrace(); }finally{ if(out!=null){ try { out.close(); } catch (IOException e) { e.printStackTrace(); } } } } } }; @Override public void onGestureStarted(GestureOverlayView overlay, MotionEvent event) {// overlay.clear(false); } @Override public void onGesture(GestureOverlayView overlay, MotionEvent event) { } @Override public void onGestureEnded(GestureOverlayView overlay, MotionEvent event) { //画完得到手势，如果长度过短则清除 gesture = overlay.getGesture(); if (gesture.getLength() < 100) { overlay.clear(false); } } @Override public void onGestureCancelled(GestureOverlayView overlay, MotionEvent event) { } @Override public void onGesturingStarted(GestureOverlayView overlay) { } @Override public void onGesturingEnded(GestureOverlayView overlay) { }} /** * 加载jar包的index页面 */ public void initContainer(){ LayoutInflater flater=this.getLayoutInflater(); container=(LinearLayout)flater.inflate(R.layout.container, null); Intent intent=this.getIntent(); String packgeName=intent.getStringExtra("packgeName"); String codeFilePath=intent.getStringExtra("codeFilePath"); try { File codeFile = new File(codeFilePath); DexClassLoader cl = new DexClassLoader(codeFile.getAbsolutePath(),this.getCacheDir().getAbsolutePath(), null, getClassLoader()); Class c=cl.loadClass(packgeName+".IndexView"); Class[] parameterTypes={Activity.class}; Constructor constructor= c.getConstructor(parameterTypes); Object[] parameters={this}; View view=(View)constructor.newInstance(parameters); container.addView(view); currentView=view; } catch (Exception e) { Log.e(Tag, "load index view error"); e.printStackTrace(); } }public class ImageLoader { private Map<String, SoftReference<Drawable>> imageCache = new HashMap<String, SoftReference<Drawable>>(); private BlockingQueue<Runnable> workQueue = new LinkedBlockingQueue<Runnable>(); /**下载线程管理*/ private ThreadPoolExecutor threadPool = new ThreadPoolExecutor(3, 3, 5, TimeUnit.SECONDS, workQueue, new ThreadPoolExecutor.CallerRunsPolicy()); private Context mContext; /**客户端放功能点图标的缓存路径*/ private String IconCachePath; // 尝试次数 private int num = 3; public ImageLoader(Context context) { this.mContext = context; IconCachePath = context.getDir("iconFile", Context.MODE_PRIVATE).getAbsolutePath(); } /** * 异步加载图片时调用该方法 * @param imageUrl 服务器图片url * @param cacheIcon 本地要缓存该图片的文件名称 * @param callback 下载完毕要执行的回调方法 * @return */ public Drawable loadDrawable(final String imageUrl, String cacheIcon, final ImageCallback callback) { final Handler handler = new Handler() { @Override public void handleMessage(Message msg) { callback.imageLoaded((Drawable)msg.obj, imageUrl); } }; try { threadPool.execute(new ImageThread(handler, cacheIcon, imageUrl)); } catch (Exception e) { e.printStackTrace(); } return null; } /** * 用url下载图片，加入失败重试，默认重试次数是3次 * @param imageUrl * @return */ protected Drawable loadImageFromUrl(String imageUrl) { // 开始下载 AndroidHttpClient client = null; try { Drawable drawable = null; while (num > 0) { client = AndroidHttpClient.newInstance(null, mContext); HttpGet request = new HttpGet(imageUrl); HttpResponse response = client.execute(request); InputStream entityStream = response.getEntity().getContent(); drawable = Drawable.createFromStream(entityStream, "src"); if (drawable != null && drawable.getIntrinsicWidth() > 0) { break; } //下载失败一次会去检查一次网络是否正常，如果因为网络错误的原因导致下载失败，直接跳出重试循环 boolean netStatus = GlobalUtil.isNetAvailable(mContext); if (!netStatus) { Toast.makeText(mContext, "网络错误，请检查网络设置!", Toast.LENGTH_SHORT).show(); break; } num--; } return drawable; } catch (Exception e) { return null; } finally { if (client != null) { client.close(); client = null; } } } // 下载完成之后回调接口 public interface ImageCallback { public void imageLoaded(Drawable imageDrawable, String imageUrl); } /** * 加载图片工作线程类 */ class ImageThread implements Runnable { private String imageUrl; private String cacheIcon; private Handler handler; public ImageThread(Handler handler, String cacheIcon, String imageUrl) { this.handler = handler; this.cacheIcon = cacheIcon; this.imageUrl = imageUrl; } @Override public void run() { //本地缓存图片文件 File icon = new File(IconCachePath + "/" + cacheIcon); if (imageCache.containsKey(imageUrl)) { // 检查缓冲imageCache是否存在对应的KEY SoftReference<Drawable> softReference = imageCache.get(imageUrl); // 存在就获取对应的值 if (softReference.get() != null) { Message message = handler.obtainMessage(0, softReference.get()); handler.sendMessage(message); } } else if (icon.exists()) { //首先检查本地是否存在该图片文件，存在则取本地的文件加载 Drawable drawable = Drawable.createFromPath(IconCachePath + "/" + cacheIcon); Message message = handler.obtainMessage(0, drawable); handler.sendMessage(message); } else { //如果不存在则通过网络去下载 Drawable drawable = loadImageFromUrl(imageUrl); // 使用下面的方法获取Drawable if (drawable != null && drawable.getIntrinsicWidth() > 0) { imageCache.put(imageUrl, new SoftReference<Drawable>(drawable)); // 把图片放到HasMap中 // 判断下载是否成功，如果下载正确，则把图片缓存写入本地文件 try { icon.createNewFile(); FileOutputStream out = new FileOutputStream(icon); BitmapDrawable b = (BitmapDrawable)drawable; Bitmap bitmap = b.getBitmap(); bitmap.compress(CompressFormat.PNG, 100, out); } catch (IOException e) { e.printStackTrace(); } } Message message = handler.obtainMessage(0, drawable); handler.sendMessage(message); } } }} /** * 获取当前应用的签名公钥 * * @param context * @return */ public static String getPublicKey(Context context) { try { PackageManager pm = context.getPackageManager(); PackageInfo pinfo = pm.getPackageInfo(context.getPackageName(), PackageManager.GET_SIGNATURES); CertificateFactory certFactory = CertificateFactory.getInstance("X.509"); X509Certificate cert = (X509Certificate)certFactory .generateCertificate(new ByteArrayInputStream(pinfo.signatures[0].toByteArray())); String publickey = cert.getPublicKey().toString(); publickey = publickey.substring(publickey.indexOf("modulus: ") + 9, publickey.indexOf("\n", publickey.indexOf("modulus:"))); return publickey; } catch (CertificateException e) { e.printStackTrace(); } catch (NameNotFoundException e) { e.printStackTrace(); } return null; }/** * md5加密文件 * * @param fileName * @return */ public static String md5sum(String fileName) { InputStream fis; byte[] buffer = new byte[1024]; int numRead = 0; MessageDigest md5; try { fis = new FileInputStream(fileName); md5 = MessageDigest.getInstance("MD5"); while ((numRead = fis.read(buffer)) > 0) { md5.update(buffer, 0, numRead); } fis.close(); return bytesToHexStr(md5.digest()); } catch (Exception e) { Log.i(TAG, "MD5 " + fileName + " error!"); return null; } } /** * MD5加密字符串。32位 * * @param inStr * @return */ public static String MD5(String str) { MessageDigest md5 = null; try { md5 = MessageDigest.getInstance("MD5"); char[] charArray = str.toCharArray(); byte[] byteArray = new byte[charArray.length]; for (int i = 0; i < charArray.length; i++) byteArray[i] = (byte)charArray[i]; byte[] md5Bytes = md5.digest(byteArray); return bytesToHexStr(md5Bytes); } catch (Exception e) { e.printStackTrace(); return null; } } /** * Transform the specified byte into a Hex String form. */ public static final String bytesToHexStr(byte[] bcd) { StringBuffer s = new StringBuffer(bcd.length * 2); for (int i = 0; i < bcd.length; i++) { s.append(bcdLookup[(bcd[i] >>> 4) & 0x0f]); s.append(bcdLookup[bcd[i] & 0x0f]); } return s.toString(); }
