what best widgets for android

not killed until the OnPause method is called, and OnStop () and OnDestroy () can be killed. But a yellow marker was also marked: Honeycomb.This is what the official text says: starting with honeycomb, an application are not in the killable state until onStop() its Has returned.Starting with Honeycomb (Android 3.0), the app can only be killed after the OnStop () method returns, meaning the application can

What would be is removed If you click Clear Data Button in the System applicationOne of today's stories suddenly mentions cleanup data in the system setup, and then begins to think about what the system's application cleanup will do to clean up the data. So began to study, taking Com.mx.browser as an example, the idea is to first/data/data/com.mx.browser under each folder under the creation of a logo file,

= new Notification (icon, NULL, when); notification.defaults = Notification.default_sound; Pendingintent contentintent = pendingintent.getactivity (mainactivity.this, 0, NULL, 0); Notification.setlatesteventinfo (mainactivity.this, "status bar Notification Test", "Morning 11:02", contentintent); Mnotificationmanager.notify (0, notification);}});}}　　　　Cause: This is used previously, is not currently in use or has changed, is not recommended, but does not affect the operation of the program　　　　Th

[Android development experience] What is the modification of ViewHolder? Static? Final? Static final ?, Androidviewholder Reprinted please indicate the source: http://blog.csdn.net/zhaokaiqiang1992 Now we all know that ViewHolder is used to optimize the listview. But what does ViewHolder use to modify it? What is the s

recycleunchecked () method above: 1. Empty the Message object field to be reclaimed (avoid a static message pool memory leak due to the message being too large). therefore, regardless of how large the original message object is, and is eventually cached before the message pool is empty, the memory size of these cached message objects is basically negligible for an app memory. Therefore, the Message pool does not cause the app to Oom. 2, in the way of built-in lock (thread safety),

What is the difference between asset and raw in Android? androidassetraw * Similarities between res/raw and assets: 1. Files in the two directories will be stored in the apk package intact after packaging, and will not be compiled into binary. * Differences between res/raw and assets:1. files in res/raw will be mapped to R. in the java file, the resource ID is R. id. filename; files in the assets folder wil

Application Upgrade: If you want users to seamlessly upgrade to a new version, you must sign with the same certificate. This is because only the same certificate is signed and the system is allowed to install the upgraded application. If you have a different certificate, your application will be asked to take a different package name, in which case it is equivalent to installing a completely new application. If you want to upgrade the application, the signing certificate must be the same, the pa

("Network Off"); LOG.E ("Wankai2", "Wangguan"); } } }} Third, judge whether the GPS is openpublic static Boolean isgpsenabled (context context) { Locationmanager lm = ((Locationmanager) Context . Getsystemservice (Context.location_service)); listIv. determine if WiFi is turned onpublic static Boolean iswifienabled (context context) { Connectivitymanager mgrconn = (connectivitymanager) contextV. To determine whether it is a 3G networkpubl

permission group refers to different sets of permissions that are divided into functions. Each permission group contains a number of specific permissions, such as Android.permission.SEND_SMS, Android.permission.CALL_PHONE, and so on, which are related to charges in the Cost_money group.The permissions information for the package is specified primarily through a number of tags in the androidmanifest.xml. such as 3 Android Signature mechanismBoth the s

This is stackoverflow on the answer of a netizen:Original address: Http://stackoverflow.com/questions/3572463/what-is-context-in-android As the name suggests, its the context of the application/object. It lets newly created objects understand what have been going on. Typically you-call it-get information regarding another part of the Your program (activity, P

Parcel, which means "packaging. What about packaging? It is for serialization. If you want to pass an integer between processes, it is easy to directly pass the line; if you want to pass a string, it is a little complicated: You need to first allocate a memory that can hold the string, then copy the string to the memory and pass it again. (A newbie may ask: why not directly pass the string reference? Everyone who has learned C/C ++ knows that a proce

Today's whim, wondering: After a bindservice B in Android, what happens if A or B is killed?1. Kill A, no doubt it should be: B won't be stopped. 2. Kill B, what's going to happen? A'll receive onservicedisconnected call back. And A would reconnect B? Or A would re-bindservice B? Or A would receive onserviceconnected B, if B is restarted? After testing, this is the right one.

First, what is Beijing xxx build dsluntan.com vx:17061863513anrANR,(Application Not Responding) 即应用程序无响应，在android应用中，当我们的UI线程被阻塞，就会弹出如下对话框，用户可以选择继续等待或者关闭这个应用程序,这种现象我们称之为ANR.Ii. Types of ANRThe type of ANR is broadly divided into the following three types1, the main thread to the input event in 5 seconds did not finish processing the prerequisite for this ANR is to have an input event, if the user does not t

Android phones usually need root to obtain the maximum permissions and perform various customization. Therefore, many one-click root software can be used to enable permissions, but what if one-click root failure occurs?1. What should I do if one-click root fails? Generally, one-click root supports a large number of mobile phone models, but many tools are often un

When Appium automated testing, it is often necessary to know the package name and activity name of the application you are testing in order to automate the test.In my previous blog also mentioned to get the name of the activity, but not very convenient, and even waste a lot of time looking for the package name and activity above, there is a simple way, a command is done!1. ADB View top activity name" mfocusedactivity " "mfocusedactivity"Here's what I

In activity, you can start another activity directly using intent.Explicit Intent Intent = new Intent (context, Activity.class)Implicit Intent Intent = new Intent ("Com.aa.www.act");StartActivity (Intent);If you start the activity in the same way from the service, you will get an error:Android.util.AndroidRuntimeException:Calling startactivity () from outside of an Activity context requires the FLAGAC TivityNEWTASK flag. Is this really what do you wan

650) this.width=650; "Src=" Http://s5.51cto.com/wyfs02/M00/87/D5/wKioL1fjMH3Rdda9AADOI7izDUw803.jpg-wh_500x0-wm_3 -wmp_4-s_324113240.jpg "title=" app company select. jpg "alt=" wkiol1fjmh3rdda9aadoi7izduw803.jpg-wh_50 "/>With more and more users now using mobile devices to access the Internet, companies can also tap into potential users from the mobile app side and want to design a mobile app, what are some of the issues we need to consider?First of a

Android often uses HTTP to interact with the server, but if the submitted data is in Chinese, it often appears garbled.1. First change the workbench code to Utf-82. Transcode the English in the requested URL3. Stitch the final URL and request String Test=urlencoder.encode ("Ru Jianwei", "UTF-8"); String urlstring= "Http://luozhanwei1.app.com/bee/getuserdata.php?realname=" +test; URL url=new url (

Screen orientation changes occur in many applications, but what happens when things change?Let's write an app to test it.Here's the code: http://download.csdn.net/detail/edwardwayne/8594291We wrote a few important stages of the Android life cycle oncreate,onresume,onstart,ondestory,onstop approach in mainactivityCalling the Toast method in it tells us that there are no triggers at these stages.In addition w

user-implemented broadcast receiver must inherit the Broadcastreceiver class of the system and need to be registered in the program.D. The application can broadcast its own intent through context.sendbroadcast (). Other programs take time processing through their own broadcast receivers interception.Ii. Important Objects Intent A. Transfer intent start an activity, startactivity, Startactivityforresult;B. Transfer intent start a service, StartService, Bindservice;C. New addition to a broadcast