650) this.width=650; "src=" http://s3.51cto.com/wyfs02/M02/6B/72/wKioL1UuELfRagIBAAC5nAztIP4911.jpg "title=" 1.jpg " alt= "Wkiol1uuelfragibaac5naztip4911.jpg"/>1. What is JNIJNI, starting with Java1.1, the Java Native Interface (JNI) standard becomes part of the Java platform, which allows Java code to interact with code written in other languages. JNI was initially designed for local compiled languages, especially C and C + +, but it does not prevent you from using other languages, as
Android obtains the mobile phone information (device IP, OS version etc .) I haven't written anything for a long time. Today I am making a PV log record. I need to record the OS version, WiFi IP address, current time, and so on. I have investigated and shared the following:
Package com. Osip;
Import java. Text. dateformat;Import java. Text. simpledateformat;Impo
sensor sensor;//gravity sense listener Private Onshakelistener onshakelistener;//Context Private Context mcontext;//phone last position when gravity sensing coordinates private float lastx;private float lasty;private float lastz;//Last detection Time private loNg lastupdatetime;//Constructor Public Shakelistener (Context c) {//Get Listener Object Mcontext = C;start ();} //start public void start () {//Get
Wired delivery
1. Android phones can use the "360 phone helper" to help us achieve data transmission.
2. First make sure that the mobile phone installed 360 mobile phone assistants, now we connect the mobile phone data cable to the computer, open 360 mobile
Android "cannot be viewed ***. Please release some mobile phone memory"
(Mprc) porting Android 2.1)
After downloading the (ucweb) software in a browser, click Install. the dialog box is displayed, "You cannot view the information ***. Please release some mobile phone memory ".
Check through logcat: "couldn't clear appl
After the game was developed using Cocos2d-x 3.0, it was found that the game was very hot on Android phones, and on Meizu 2, almost worried that the phone would explode ~ ~ ~ One of the measures taken is to reduce the frame rate because the game is not very high for frame rate requirements.The students who have done cocos2d development should know that the way to modify the frame rate on the Win32 platform
[Java]View Plaincopyprint?
Get the intent in the middle of the image
Ivshowimage = (ImageView) Findviewbyid (r.id.call_log_detail_contact_img);
//Call phone number get avatar URI
Uri urinumber2contacts = URI
. Parse ("content://com.android.contacts/"
+ "data/phones/filter/" + strphonenumber);
Cursor cursorcantacts = sapplication.nowsapplication
. Getcontentresolver (). Query (urinumber2contacts, null, null,
null, null );
if (C
Have_android_osint result = IOCTL (FD, Android_rtc_alarm_set, seconds);LOGE ("Set RTC Alarm to%d later:%sn", Seconds, Strerror (errno));if (Result {LOGE ("Unable to set RTC alarm to%d later:%sn", Seconds, Strerror (errno));}#endif}
And just don't forget to define the interface:
The code is as follows
Copy Code
{"Updatertcalarm", "(II) V", (void*) Android_server_alarmmanagerservice_updatertcalarm},
4) in frameworks/base/services/java/com/
entering delete
1. First install the Android phone root before the rootexplorer_v2.17.2 browser.
2. The mobile phone in the root after the end of the direct access to the phone's Rea browser, find a name called "System" in the option.
3. The next entry is the following interface, in the system folder to see a name called the App folder, click in.
4. Access t
The Android platform offers four types of data storage: Shared Preferences, file storage, SQLite storage, and networked storage. which
1 Shared Preferences A lightweight key-value storage mechanism dedicated to storing key-value pairs of data, and can only store basic data types (boolean, int, long, float, and string), which are typically used to store application configuration information.
2 file storage
A few days ago the public number was completed for the leadership review, because the public number was developed on the basis of the previous 1.0, so there is no concern about compatibility issues [in fact, ignoring the ios=. = Forgive me for my ignorance]The result is a problem and there are several problems:1. The input render effect differs from andriod2. Long string numbers will be rendered as phone nu
As an extended storage device for mobile phones, SD cards act as hard disks on mobile phones, allowing our mobile phones to store more data, multimedia files, and other large files. Therefore, checking the memory of the SD card is the same as checking the remaining space on the hard disk. It is a common task. How can we obtain the memory capacity of the SD card during Android development?
First, you must have the permission to access the SD card befor
item clicks here. The Action Bar would//automatically handle clicks on the Home/up button, so long//As you specify a the parent activity in Androidmanifest.xml. intID =Item.getitemid (); if(id = =r.id.action_settings) { return true; } return Super. onoptionsitemselected (item); } //implement click events for various controls@Override Public voidOnClick (View v) {Switch(V.getid ()) { CaseR.id.bt_dial:callphone (); Break; d
How does android combine SDN numbers in the phone book with other common numbers?The original default design will separate SDN with the title "SDN ",The following modifications can be used to arrange the SDN and general numbers in the same order and in the first order.In configureSelection () method of DefaultContactListAdapter. javaAnnotate the following statement with selection IS_SDN_CONTACT + "/*** M: N
files like your phone's own file system browser.Whether it's an internal SD card or an external SD card, it's a phone's external storage, and the phone's internal storage and external storage share the same device.Internal Storage Path:All apps installed to the phone will generate a package name folder in the Data/data directory, which is the path to the internal storageApps can read and write files only in their own package name folderRead and write
hole for a long time, look at this post to get you out of the hole in a moment.------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------During Dev ... I found a question by Android system (Huawei). It ' s no logo u want, when u install your apk.My guess, when u
Because I study Android also quite a long time, has kept the diary in Evernote, because just leave relatively idle plan to put Evernote in the log over and over again published to share online.This article will use the C # and Java languages, respectively, to implement the PC client code that communicates with the Android terminal.The ADB-related components are r
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