/**
* Deposit in the province read images, width is high, the greater the picture clearer, but also
* the memory
*
* @param imagePath Pictures in the path of the memory card
* @param maxWidth The highest limit value target width
* @param maxHeight The highest limit value target height
* @return
*/
public Bitmap readImage(String imagePath, int maxWidth, int maxHeight) {
File imageFile = new File(imagePath);
if (imageFile.exists()) {
try {
BufferedInputStream inputStream = new BufferedInputStream(new FileInputStream(imageFile));
BitmapFactory.Options options = new BitmapFactory.Options();
options.inJustDecodeBounds = true;
BitmapFactory.decodeStream(inputStream, null, options);
inputStream.close();
int i = 0;
while (true) {
if ((options.outWidth >> i <= maxWidth) && (options.outHeight >> i <= maxHeight)) {
inputStream = new BufferedInputStream(new FileInputStream(new File(imagePath)));
options.inSampleSize = (int) Math.pow(2.0, i);
options.inJustDecodeBounds = false;
Bitmap bitmap = BitmapFactory.decodeStream(inputStream, null, options);
inputStream.close();
return bitmap;
}
i += 1;
}
} catch (IOException e) {
Logger.e("This path does not exist" + imagePath, e);
}
}
return null;
}
/**
* Check the netwoek is enable
*
* @param context Access to {@code ConnectivityManager} services
* @return Available returns true, unavailable returns false
*/
@SuppressWarnings("deprecation")
@SuppressLint("NewApi")
public static boolean isNetworkAvailable(Context context) {
try {
ConnectivityManager connectivity =
(ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);
if (connectivity == null) {
return false;
} else {
if (VERSION.SDK_INT >= 21) {
Network[] networks = connectivity.getAllNetworks();
for (Network network : networks) {
NetworkInfo networkInfo = connectivity.getNetworkInfo(network);
if (networkInfo.getState() == NetworkInfo.State.CONNECTED) return true;
}
} else {
NetworkInfo[] networkInfos = connectivity.getAllNetworkInfo();
for (NetworkInfo networkInfo : networkInfos)
if (networkInfo.getState() == NetworkInfo.State.CONNECTED) return true;
}
}
} catch (Throwable e) {
Logger.throwable(e);
}
return false;
}
@Override
public void onSucceed(int what, Response<Bitmap> response) {
Bitmap bitmap = response.get();
if (bitmap == null) Logger.i("图片非空");
mImageView.setImageBitmap(bitmap);
mStatus.setText("成功");
}
/**
* Open or close the GPRS
*
* @param context Access to {@code ConnectivityManager} services
* @param isEnable Open to true, close to false
*/
public static void setGPRSEnable(Context context, boolean isEnable) {
try {
ConnectivityManager connectivityManager =
(ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);
Class<?> cmClass = connectivityManager.getClass();
Class<?>[] argClasses = new Class[1];
argClasses[0] = boolean.class;
Method method = cmClass.getMethod("setMobileDataEnabled", argClasses);
method.invoke(connectivityManager, isEnable);
} catch (Throwable e) {
Logger.throwable(e);
}
}
/**
* Check the GPRS whether available
*
* @param context Access to {@code ConnectivityManager} services
* @return Open return true, close returns false
*/
public static boolean isGPRSOpen(Context context) {
Boolean isOpen = false;
try {
ConnectivityManager connectivityManager =
(ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);
Class<?> cmClass = connectivityManager.getClass();
Class<?>[] argClasses = null;
Method method = cmClass.getMethod("getMobileDataEnabled", argClasses);
Object[] argObject = null;
isOpen = (Boolean) method.invoke(connectivityManager, argObject);
} catch (Throwable e) {
Logger.throwable(e);
}
return isOpen;
}
/**
* Tet local ip adress
*
* @return Such as：192.168.1.1
*/
public static String getLocalIPAddress() {
String ipAddress = "";
try {
Enumeration<NetworkInterface> netfaces = NetworkInterface.getNetworkInterfaces();
// 遍历所用的网络接口
while (netfaces.hasMoreElements()) {
NetworkInterface nif = netfaces.nextElement(); // 得到每一个网络接口绑定的地址
Enumeration<InetAddress> inetAddresses = nif.getInetAddresses();
// 遍历每一个接口绑定的所有ip
while (inetAddresses.hasMoreElements()) {
InetAddress ip = inetAddresses.nextElement();
if (!ip.isLoopbackAddress() && isIPv4Address(ip.getHostAddress())) {
ipAddress = ip.getHostAddress();
}
}
}
} catch (Throwable e) {
Logger.throwable(e);
}
return ipAddress;
}