System directories
Method | Result |
---|---|
Environment.getDataDirectory() | /data |
Environment.getDownloadCacheDirectory() | /cache |
Environment.getRootDirectory() | /system |
External storage directories
{ | |
"aps":{ | |
"alert":{ | |
"loc-key":"My Localized String", | |
"loc-args":[ | |
"First argument", | |
"Second argument" | |
] | |
}, | |
"badge":1, |
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions | |
{ | |
[application setMinimumBackgroundFetchInterval:UIApplicationBackgroundFetchIntervalMinimum]; | |
return YES; | |
} |
-(void)application:(UIApplication *)application performFetchWithCompletionHandler:(void (^)(UIBackgroundFetchResult))completionHandler{ | |
// Call or write any code necessary to get new data, process it and update the UI. | |
// The logic for informing iOS about the fetch results in plain language: | |
if (/** NEW DATA EXISTS AND WAS SUCCESSFULLY PROCESSED **/) { | |
completionHandler(UIBackgroundFetchResultNewData); | |
} | |
if (/** NO NEW DATA EXISTS **/) { |
<html> | |
<body> | |
<h2>Privacy Policy</h2> | |
<p>[Individual or Company Name] built the [App Name] app as a [open source | free | freemium | ad-supported | commercial] app. This SERVICE is provided by [Individual or company name] [at no cost] and is intended | |
for use as is.</p> | |
<p>This page is used to inform website visitors regarding [my|our] policies with the collection, use, and | |
disclosure of Personal Information if anyone decided to use [my|our] Service.</p> | |
<p>If you choose to use [my|our] Service, then you agree to the collection and use of information in | |
relation with this policy. The Personal Information that [I|we] collect are used for providing and | |
improving the Service. [I|We] will not use or share your information with anyone except as described |
{ | |
"aps":{ | |
"alert":{ | |
"loc-key":"My Localized String", | |
"loc-args":[ | |
"First argument", | |
"Second argument" | |
] | |
}, | |
"badge":1, |
# How do I test my APN push notification certificates (PEM key)? | |
# https://www.pubnub.com/knowledge-base/discussion/234/how-do-i-test-my-pem-key | |
# You can test your PEM key using the following command, which should hang if successful until you press enter: | |
# openssl s_client -connect gateway.sandbox.push.apple.com:2195 -cert pnpush.pem -key pnpush.pem | |
# The above tests the PEM Key in sandbox mode. For production mode, use the following command: | |
# openssl s_client -connect gateway.push.apple.com:2195 -cert pnpush.pem -key pnpush.pem | |
# You can also test your PEM Key by running the Python script below using the script below. The usage would be: | |
# python push_debug.py <CERT_PATH> <DEVICE_TOKEN> | |
System directories
Method | Result |
---|---|
Environment.getDataDirectory() | /data |
Environment.getDownloadCacheDirectory() | /cache |
Environment.getRootDirectory() | /system |
External storage directories
/** | |
* Definition for binary tree | |
* public class TreeNode { | |
* int val; | |
* TreeNode left; | |
* TreeNode right; | |
* TreeNode(int x) { val = x; } | |
* } | |
*/ | |
public class Solution { |
// 判斷 app 是否有安裝 | |
private static boolean isPkgInstalled(Context context, String pkgName) { | |
PackageInfo packageInfo = null; | |
try { | |
packageInfo = context.getPackageManager().getPackageInfo(pkgName, 0); | |
} catch (PackageManager.NameNotFoundException e) { | |
packageInfo = null; | |
e.printStackTrace(); | |
} |
String timeStamp = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss").format(System.currentTimeMillis()); | |
// current UNIX time millsecond to yyyy-MM-dd HH:mm:ss |