/**
* 网络是否手机网络连接
*
* @param context
* @return
*/
public static boolean isOnlyMobileType(Context context) {
State wifiState = null;
State mobileState = null;
ConnectivityManager cm =
(ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);
NetworkInfo networkInfo = null;
try {
networkInfo = cm.getNetworkInfo(ConnectivityManager.TYPE_WIFI);
} catch (Exception e) {
e.printStackTrace();
}
if (networkInfo != null) {
wifiState = networkInfo.getState();
}
try {
networkInfo = cm.getNetworkInfo(ConnectivityManager.TYPE_MOBILE);
} catch (Exception e) {
e.printStackTrace();
}
if (networkInfo != null) {
mobileState = networkInfo.getState();
}
LogS.d("zhang", "onReceive -- wifiState = " + wifiState + " -- mobileState = " + mobileState);
if (wifiState != null
&& mobileState != null
&& State.CONNECTED != wifiState
&& State.CONNECTED == mobileState) {
// 手机网络连接成功
LogS.d("zhang", "onReceive -- 手机网络连接成功");
return true;
}
return false;
}
/**
* 获取文件系统的剩余空间，单位：KB
*
* @return
*/
public static long getFileSystemAvailableSize(File dirName) {
long availableSize = -1;
if (dirName != null && dirName.exists()) {
StatFs sf = new StatFs(dirName.getPath());
long blockSize = sf.getBlockSize();
long blockCount = sf.getBlockCount();
long availableBlocks = sf.getAvailableBlocks();
availableSize = availableBlocks * blockSize / 1024;
LogS.d(
TAG,
"blockSize = "
+ blockSize
+ ", blockCount = "
+ blockCount
+ ", totalSize = "
+ blockSize * blockCount / 1024
+ " KB"
+ "\navailableBlocks = "
+ availableBlocks
+ ", availableSize = "
+ availableSize
+ " KB");
}
return availableSize;
}
/**
* sdcard是否可读写
*
* @return
*/
public static boolean isSdcardReady() {
try {
return Environment.MEDIA_MOUNTED.equals(Environment.getExternalStorageState());
} catch (Exception e) {
LogS.e(TAG, "isSdcardReady had exception!", e);
return false;
}
}
/**
* 程序是否在前台运行
*
* @return
*/
public static boolean isAppOnForeground(Context context) {
try {
ActivityManager activityManager =
(ActivityManager)
context.getApplicationContext().getSystemService(Context.ACTIVITY_SERVICE);
String packageName = context.getPackageName();
List<RunningAppProcessInfo> appProcesses = activityManager.getRunningAppProcesses();
if (appProcesses == null) {
return false;
}
for (RunningAppProcessInfo appProcess : appProcesses) {
// The name of the process that this object is associated with.
if (appProcess.processName.equals(packageName)
&& appProcess.importance == RunningAppProcessInfo.IMPORTANCE_FOREGROUND) {
return true;
}
}
} catch (Exception e) {
e.printStackTrace();
LogS.e(TAG, "isAppOnForeground exception!", e);
}
return false;
}
