package com.net.util; import java.io.File; import java.io.FileOutputStream; import java.io.IOException; import java.io.InputStream; import java.net.HttpURLConnection; import java.net.MalformedURLException; import java.net.URL; import java.util.ArrayList; import java.util.List; import android.content.Context; import android.graphics.Bitmap; import android.graphics.BitmapFactory; import android.os.Environment; import android.util.Log; /** * 图片下载工具类 * * @author gaozhibin * */ public class BitmapUtil { private static final String TAG = "BtimapUtil"; /** * 根据网址获得图片,优先从本地获取,本地没有则从网络下载 * * @param url 图片网址 * @param context 上下文 * @return 图片 */ public static Bitmap getBitmap(String url,Context context){ Log.e(TAG, "------url="+url); String imageName= url.substring(url.lastIndexOf("/")+1, url.length()); File file = new File(getPath(context),imageName); if(file.exists()){ Log.e(TAG, "getBitmap from Local"); return BitmapFactory.decodeFile(file.getPath()); } return getNetBitmap(url,file,context); } /** * 根据传入的list中保存的图片网址,获取相应的图片列表 * * @param list 保存图片网址的列表 * @param context 上下文 * @return 图片列表 */ public static List<Bitmap> getBitmap(List<String> list,Context context){ List<Bitmap> result = new ArrayList<Bitmap>(); for(String strUrl : list){ Bitmap bitmap = getBitmap(strUrl,context); if(bitmap!=null){ result.add(bitmap); } } return result; } /** * 获取图片的存储目录,在有sd卡的情况下为 “/sdcard/apps_images/本应用包名/cach/images/” * 没有sd的情况下为“/data/data/本应用包名/cach/images/” * * @param context 上下文 * @return 本地图片存储目录 */ private static String getPath(Context context){ String path = null; boolean hasSDCard = Environment.getExternalStorageState().equals(Environment.MEDIA_MOUNTED); String packageName = context.getPackageName()+"/cach/images/"; if(hasSDCard){ path="/sdcard/apps_images/"+packageName; }else{ path="/data/data/"+packageName; } File file = new File(path); boolean isExist = file.exists(); if(!isExist){ file.mkdirs(); } return file.getPath(); } /** * 网络可用状态下,下载图片并保存在本地 * * @param strUrl 图片网址 * @param file 本地保存的图片文件 * @param context 上下文 * @return 图片 */ private static Bitmap getNetBitmap(String strUrl,File file,Context context) { Log.e(TAG, "getBitmap from net"); Bitmap bitmap = null; if(NetUtil.isConnnected(context)){ try { URL url = new URL(strUrl); HttpURLConnection con = (HttpURLConnection) url.openConnection(); con.setDoInput(true); con.connect(); InputStream in = con.getInputStream(); bitmap = BitmapFactory.decodeStream(in); FileOutputStream out = new FileOutputStream(file.getPath()); bitmap.compress(Bitmap.CompressFormat.PNG,100, out); out.flush(); out.close(); in.close(); } catch (MalformedURLException e) { e.printStackTrace(); } catch (IOException e) { e.printStackTrace(); } finally{ } } return bitmap; } }
package com.net.util; import java.io.IOException; import java.io.UnsupportedEncodingException; import java.util.List; import org.apache.http.HttpResponse; import org.apache.http.HttpStatus; import org.apache.http.NameValuePair; import org.apache.http.client.ClientProtocolException; import org.apache.http.client.entity.UrlEncodedFormEntity; import org.apache.http.client.methods.HttpGet; import org.apache.http.client.methods.HttpPost; import org.apache.http.client.methods.HttpUriRequest; import org.apache.http.impl.client.DefaultHttpClient; import org.apache.http.util.EntityUtils; import org.json.JSONException; import org.json.JSONObject; import android.content.Context; import android.net.ConnectivityManager; import android.net.NetworkInfo; import android.util.Log; import android.widget.Toast; public class NetUtil { private static final String TAG = "NetUtil"; /** * 网络连接是否可用 */ public static boolean isConnnected(Context context) { ConnectivityManager connectivityManager = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE); if (null != connectivityManager) { NetworkInfo networkInfo[] = connectivityManager.getAllNetworkInfo(); if (null != networkInfo) { for (NetworkInfo info : networkInfo) { if (info.getState() == NetworkInfo.State.CONNECTED) { Log.e(TAG, "the net is ok"); return true; } } } } Toast.makeText(context, "网络连接失败", Toast.LENGTH_SHORT).show(); return false; } /** * 网络可用状态下,通过get方式向server端发送请求,并返回响应数据 * * @param strUrl 请求网址 * @param context 上下文 * @return 响应数据 */ public static JSONObject getResponseForGet(String strUrl, Context context) { if (isConnnected(context)) { return getResponseForGet(strUrl); } return null; } /** * 通过Get方式处理请求,并返回相应数据 * * @param strUrl 请求网址 * @return 响应的JSON数据 */ public static JSONObject getResponseForGet(String strUrl) { HttpGet httpRequest = new HttpGet(strUrl); return getRespose(httpRequest); } /** * 网络可用状态下,通过post方式向server端发送请求,并返回响应数据 * * @param market_uri 请求网址 * @param nameValuePairs 参数信息 * @param context 上下文 * @return 响应数据 */ public static JSONObject getResponseForPost(String market_uri, List<NameValuePair> nameValuePairs, Context context) { if (isConnnected(context)) { return getResponseForPost(market_uri, nameValuePairs); } return null; } /** * 通过post方式向服务器发送请求,并返回响应数据 * * @param strUrl 请求网址 * @param nameValuePairs 参数信息 * @return 响应数据 */ public static JSONObject getResponseForPost(String market_uri, List<NameValuePair> nameValuePairs) { if (null == market_uri || "" == market_uri) { return null; } HttpPost request = new HttpPost(market_uri); try { request.setEntity(new UrlEncodedFormEntity(nameValuePairs)); return getRespose(request); } catch (UnsupportedEncodingException e1) { e1.printStackTrace(); } return null; } /** * 响应客户端请求 * * @param request 客户端请求get/post * @return 响应数据 */ public static JSONObject getRespose(HttpUriRequest request) { try { HttpResponse httpResponse = new DefaultHttpClient().execute(request); int statusCode = httpResponse.getStatusLine().getStatusCode(); if (HttpStatus.SC_OK == statusCode) { String result = EntityUtils.toString(httpResponse.getEntity()); Log.i(TAG, "results=" + result); return new JSONObject(result); } } catch (ClientProtocolException e) { e.printStackTrace(); } catch (IOException e) { e.printStackTrace(); } catch (JSONException e) { e.printStackTrace(); } return null; } }
package com.innofidei; import java.io.File; import java.io.IOException; import java.text.SimpleDateFormat; import java.util.Date; public class LocatUtil { private static String logToFileCommand = "logcat -v time -f "; public static void startLog(String saveiDir, String fileName) { SimpleDateFormat format = new SimpleDateFormat("yyMMdd_HHmmss"); String nowStr = format.format(new Date()); fileName = fileName + "_" + nowStr + ".txt"; new File(saveiDir).mkdirs(); try { Runtime.getRuntime().exec(logToFileCommand + saveiDir + fileName); } catch (IOException e) { e.printStackTrace(); } } }
package org.join.weather.util; import java.util.List; import org.join.weather.WeatherActivity; import org.join.weather.WeatherActivity.OnActivityResumeAndPauseListener; import android.app.AlertDialog; import android.content.Context; import android.content.Intent; import android.location.Address; import android.location.Criteria; import android.location.Geocoder; import android.location.Location; import android.location.LocationListener; import android.location.LocationManager; import android.os.Bundle; import android.os.Handler; import android.os.Message; import android.preference.PreferenceManager.OnActivityResultListener; import android.provider.Settings; import android.util.Log; import android.widget.Toast; public class GPSUtil implements OnActivityResultListener, OnActivityResumeAndPauseListener { // WeatherActivity对象 private WeatherActivity weatherActivity; // LocationManager对象 private LocationManager locationManager; // Location对象 private Location location; // 当前位置提供者 private String provider; // 时间(秒) private long minTime = 60 * 1000; // 距离(米) private float minDistance = 500; // 定位方式 private int mode = 1; // 位置监听接口 private LocationListener mLocationListener = new LocationListener() { @Override public void onLocationChanged(final Location loc) { // 当坐标改变时触发此函数,如果Provider传进相同的坐标,它就不会被触发 Log.v("onLocationChanged", "=onLocationChanged"); if (loc != null) { location = loc; showLocationInfo(loc); } else { Toast.makeText(weatherActivity, "当前位置不可定位!", Toast.LENGTH_SHORT) .show(); // 注销监听事件 // locationManager.removeUpdates(mLocationListener); } } @Override public void onProviderDisabled(String provider) { // Provider被disable时触发此函数,比如GPS被关闭 Log.v("onProviderDisabled", "=onProviderDisabled"); } @Override public void onProviderEnabled(String provider) { // Provider被enable时触发此函数,比如GPS被打开 Log.v("onProviderEnabled", "=onProviderEnabled"); } @Override public void onStatusChanged(String provider, int status, Bundle extras) { // Provider的转态在可用、暂时不可用和无服务三个状态直接切换时触发此函数 Log.v("onStatusChanged", "=onStatusChanged"); } }; // 超时注销服务 private Handler myHandler = new Handler() { @Override public void handleMessage(Message msg) { if (null == location) { // 提示信息 Toast.makeText(weatherActivity, "当前位置不可定位!", Toast.LENGTH_SHORT) .show(); } // 注销监听事件 locationManager.removeUpdates(mLocationListener); } }; public GPSUtil(WeatherActivity weatherActivity, int mode) { this.weatherActivity = weatherActivity; weatherActivity.setOnActivityResultListener(this); weatherActivity.setOnResumeAndPauseListener(this); this.mode = mode; // 获得LocationManager服务 locationManager = (LocationManager) weatherActivity .getSystemService(Context.LOCATION_SERVICE); if (openGPSSettings()) { setLocationServer(mode); } else { Toast.makeText(weatherActivity, "请开启GPS!", Toast.LENGTH_SHORT) .show(); Intent intent = new Intent(Settings.ACTION_SECURITY_SETTINGS); // 此为设置完成后返回到获取界面 weatherActivity.startActivityForResult(intent, 0); } } public GPSUtil(WeatherActivity weatherActivity, int mode, long minTime, float minDistance) { this(weatherActivity, mode); this.minTime = minTime; this.minDistance = minDistance; } // 判断GPS模块是否存在或者是开启 private boolean openGPSSettings() { if (locationManager .isProviderEnabled(android.location.LocationManager.GPS_PROVIDER)) { return true; } return false; } // 更新当前位置信息(如果使用GPS,需要保证在室外,并且没有大建筑物遮挡,如果使用网络定位,要保证网络通畅) public void setLocationServer(int mode) { Toast.makeText(weatherActivity, "正在定位!", Toast.LENGTH_SHORT).show(); switch (mode) { case 1: { // GPS定位 if (locationManager.isProviderEnabled(LocationManager.GPS_PROVIDER)) { provider = LocationManager.GPS_PROVIDER; location = locationManager.getLastKnownLocation(provider); // 设置监听器,自动更新的最小时间为间隔N秒或最小位移变化超过N米 locationManager.requestLocationUpdates(provider, minTime, minDistance, mLocationListener); Log.v("GPS定位", "GPS定位!"); } else { Log.v("GPS定位", "未提供GPS定位功能!"); } break; } case 2: { // NETWORK定位 provider = LocationManager.NETWORK_PROVIDER; location = locationManager.getLastKnownLocation(provider); // 设置监听器,自动更新的最小时间为间隔N秒或最小位移变化超过N米 locationManager.requestLocationUpdates(provider, minTime, minDistance, mLocationListener); Log.v("NETWORK定位", "NETWORK定位!"); break; } case 3: { // 查询符合条件的Location Provider来定位 // 获得Criteria对象(指定条件参数) Criteria criteria = new Criteria(); // 获得最好的单位效果 criteria.setAccuracy(Criteria.ACCURACY_FINE); criteria.setAltitudeRequired(false); criteria.setBearingRequired(false); criteria.setCostAllowed(false); // 使用省电模式 criteria.setPowerRequirement(Criteria.POWER_LOW); // 获得当前位置的提供者 provider = locationManager.getBestProvider(criteria, true); // 获得当前位置 location = locationManager.getLastKnownLocation(provider); if (null != provider) { // 设置监听器,自动更新的最小时间为间隔N秒或最小位移变化超过N米 locationManager.requestLocationUpdates(provider, minTime, minDistance, mLocationListener); } else { Log.v("provider", "null == provider"); } Log.v("最优定位", provider); break; } } if (null != location) { showLocationInfo(location); } // 延迟10秒 myHandler.sendEmptyMessageDelayed(0, 10 * 1000); } // 显示定位信息 private void showLocationInfo(Location loc) { String msg = ""; try { msg = "经度:" + location.getLongitude() + "\n"; msg += "纬度:" + location.getLatitude() + "\n"; Geocoder gc = new Geocoder(weatherActivity); List<Address> addresses = gc.getFromLocation( location.getLatitude(), location.getLongitude(), 1); // 相关信息 if (addresses.size() > 0) { msg += "AddressLine:" + addresses.get(0).getAddressLine(0) + "\n"; msg += "CountryName:" + addresses.get(0).getCountryName() + "\n"; msg += "Locality:" + addresses.get(0).getLocality() + "\n"; msg += "FeatureName:" + addresses.get(0).getFeatureName(); } } catch (Exception e) { msg = e.getMessage(); } new AlertDialog.Builder(weatherActivity).setMessage(msg) .setPositiveButton("确定", null).show(); } @Override public boolean onActivityResult(int requestCode, int resultCode, Intent data) { // 从设置GPS的Activity返回时 if (0 == requestCode) { if (openGPSSettings()) { setLocationServer(mode); } else { Toast.makeText(weatherActivity, "GPS仍未开启!", Toast.LENGTH_SHORT) .show(); } } return false; } // 在Activity恢复活动时,响应位置更新 @Override public void onResume() { if (null != provider) { locationManager.requestLocationUpdates(provider, minTime, minDistance, mLocationListener); } } // 在Activity暂停活动时,取消位置更新 @Override public void onPause() { if (null != locationManager) { locationManager.removeUpdates(mLocationListener); } } }
package com.innofidei.location; import java.net.InetAddress; import java.net.UnknownHostException; import android.content.Context; import android.net.wifi.WifiManager; public class AdressUtil { public String getIp(Context myContext) { InetAddress address = getWifiIp(myContext); if (address != null) { return address.getHostAddress(); } return null; } private InetAddress getWifiIp(Context myContext) { if (myContext == null) { throw new NullPointerException("Global context is null"); } WifiManager wifiMgr = (WifiManager) myContext.getSystemService(Context.WIFI_SERVICE); if (isWifiEnabled(myContext)) { int ipAsInt = wifiMgr.getConnectionInfo().getIpAddress(); if (ipAsInt == 0) { return null; } else { return intToInet(ipAsInt); } } else { return null; } } private boolean isWifiEnabled(Context myContext) { if (myContext == null) { throw new NullPointerException("Global context is null"); } WifiManager wifiMgr = (WifiManager) myContext.getSystemService(Context.WIFI_SERVICE); if (wifiMgr.getWifiState() == WifiManager.WIFI_STATE_ENABLED) { return true; } else { return false; } } private InetAddress intToInet(int value) { byte[] bytes = new byte[4]; for (int i = 0; i < 4; i++) { bytes[i] = byteOfInt(value, i); } try { return InetAddress.getByAddress(bytes); } catch (UnknownHostException e) { // This only happens if the byte array has a bad length return null; } } private byte byteOfInt(int value, int which) { int shift = which * 8; return (byte) (value >> shift); } }
public class ClassUtils { /** * Checks if a class is a subclass of a class with the specified name. Used * as an instanceOf without having to load the class, useful when trying to * check for classes that might not be available in the runtime JRE. * * @param clazz * The class to check * @param className * The class name to look for in the super classes * @return true if the class extends a class by the specified name. */ public static boolean extendsClass(final Class<?> clazz, String className) { Class<?> superClass = clazz.getSuperclass(); while (superClass != null) { if (superClass.getName().equals(className)) { return true; } superClass = superClass.getSuperclass(); } return false; } }
import java.io.File; import android.os.Environment; import android.os.StatFs; public class MemoryStatus { static final int ERROR = -1; /** * 外部存储是否可用 * @return */ static public boolean externalMemoryAvailable() { return android.os.Environment.getExternalStorageState().equals( android.os.Environment.MEDIA_MOUNTED); } /** * 获取手机内部可用空间大小 * @return */ static public long getAvailableInternalMemorySize() { File path = Environment.getDataDirectory(); StatFs stat = new StatFs(path.getPath()); long blockSize = stat.getBlockSize(); long availableBlocks = stat.getAvailableBlocks(); return availableBlocks * blockSize; } /** * 获取手机内部空间大小 * @return */ static public long getTotalInternalMemorySize() { File path = Environment.getDataDirectory(); StatFs stat = new StatFs(path.getPath()); long blockSize = stat.getBlockSize(); long totalBlocks = stat.getBlockCount(); return totalBlocks * blockSize; } /** * 获取手机外部可用空间大小 * @return */ static public long getAvailableExternalMemorySize() { if (externalMemoryAvailable()) { File path = Environment.getExternalStorageDirectory(); StatFs stat = new StatFs(path.getPath()); long blockSize = stat.getBlockSize(); long availableBlocks = stat.getAvailableBlocks(); return availableBlocks * blockSize; } else { return ERROR; } } /** * 获取手机外部空间大小 * @return */ static public long getTotalExternalMemorySize() { if (externalMemoryAvailable()) { File path = Environment.getExternalStorageDirectory(); StatFs stat = new StatFs(path.getPath()); long blockSize = stat.getBlockSize(); long totalBlocks = stat.getBlockCount(); return totalBlocks * blockSize; } else { return ERROR; } } static public String formatSize(long size) { String suffix = null; if (size >= 1024) { suffix = "KiB"; size /= 1024; if (size >= 1024) { suffix = "MiB"; size /= 1024; } } StringBuilder resultBuffer = new StringBuilder(Long.toString(size)); int commaOffset = resultBuffer.length() - 3; while (commaOffset > 0) { resultBuffer.insert(commaOffset, ','); commaOffset -= 3; } if (suffix != null) resultBuffer.append(suffix); return resultBuffer.toString(); } }