android phone blacklist

This article illustrates how Android uses Contentresolver to search for a phone address book. Share to everyone for your reference, specific as follows: Use Contentresolver in this program to access the Contacts keyword in your address book and deposit all the contacts you find in CursorAdapter. Enter the name of the search person A, will all start with a name will be displayed, input *, then all the names

This article is an example of how Android detects memory cards and the amount of space left in the phone. Share to everyone for your reference, specific as follows: Android environment can be used to detect whether a phone has a memory card installed and a file storage path. Statfs can get the size of the memory card

This article is an example of Android to check whether the phone and wireless connection to the implementation code, share for everyone to reference. The specific methods are as follows: Method One: The main functional code is as follows: Copy Code code as follows: Connectivitymanager manager = (Connectivitymanager) getsystemservice (Context.connectivity_service); Networkinfo info = Mana

1, the phone to get root privileges (my is Xiaomi note, directly download MIUI development version installation can be)2, download in App market ( Terminal Simulator ), install. 3, give (terminal emulator) root privileges. Tip: To test whether it has root privileges, open the terminal emulator, enter the command: Su, return is not "permission Deny" the second time the software obtained root permissions. 4 . Confirm that your real computer and PC a

1. Open Installation Permissions Android Phone has a function is to prevent the installation of unofficial applications caused by mobile phone security problems, so the phone will have an unknown source, if we open it can be installed or only the official software installed. Workaround: Allow an "unknown source" ap

Android determines whether a mobile phone is connected to IOT platform. android is connected to IOT platform. I wrote a function to determine whether the mobile phone is connected to the Internet. However, I found that everything works normally when the mobile phone is conne

How to obtain android mobile phone contacts and display them in letters (2): android contacts The following describes how to categorize and display contacts with the same initials: In the adapter implement SectionIndexer In this way, the adapter must implement the following three interfaces: @ Overridepublic Object [] getSections () {// collection of sections} @

This article is from http://blog.csdn.net/hellogv/, the citation must be noted!The last time we talked about the communication between the Android phone and the BLE terminal, the most common ble terminal should be the ibeacon base station advocated by Apple. Ibeacon technology is based on BLE, which is characterized by the broadcast of external messages, mobile phones do not need to connect to the Ibeacon b

How to get android mobile phone contacts and display them by letter (3): android contacts If you get the contact Profile and display it: How to obtain bitmap Based on photoId: public static Bitmap getContactPhoto(Context context, long photoId, BitmapFactory.Options options) { if (photoId Add the following to bindView: protected void setContactPhoto(C

This article is from http://blog.csdn.net/hellogv/ , the citation must be noted! The last time we talked about the communication between the Android phone and the BLE terminal, the most common ble terminal should be the ibeacon base station advocated by Apple. Ibeacon technology is based on BLE, which is characterized by the broadcast of external messages, mobile phones do not need to connect to the Ibeacon

How to get the native phone number on Android, and now Android provides an API to read the number that was cured on the early SIM card, Copy Code code as follows: Private String Getphonenumber () { Telephonymanager Mtelephonymgr; Mtelephonymgr = (Telephonymanager) getsystemservice (Context.telephony_service); return Mtelephonymgr.getline1number (); }

Step 1. Turn on the USB debugging option Android 4.0 System below 1, "Setting (set)"-"Application"-check "unknown source"-"development"-Check "USB debugging" and "Stay Awake State"; Android 4.0/4.1 System: 1, "Developer Options";-Check USB debugging. Android 4.2 and above system 1. We take the Samsung S5 series as an example, so this phone's USB open way is

format: Kanji + A-z + bit-A-Z or- (includes only the common license plate number, Coach car and some of the military vehicle grades are not included)/ String carnumregex = "[\ue-\ufa]{}[a-z]{}[a-z_-]{}"; if (Textutils.isempty (Carnumber)) return false; else return carnumber.matches (Carnumregex); } Of course, this regular expression has limitations, such as the first limit is only Chinese characters, not limited to only 34 provinces of Chinese characters abbreviation

Android system transplantation and debugging -------) how to modify the NFC module of the Android mobile phone so that NFC can be used in the black screen We all know that, without modifying the source code, NFC can only be used after unlocking. However, NFC cannot be used in two statuses: screen lock and black screen. However, a customer recently asked the mobil

1. The most common is that the unknown software installation failed. Unknown source, if not open we can only install the Android Market download software, if we download from the Internet can not be installed, the unknown source open method is selected in the mobile phone security settings. Workaround: Set installation permissions (figure) 2, the installation software prompts insufficient memory This

1. How does the android coordinate system define the x and y z axes? The X axis direction is from left to right along the horizontal direction of the screen. If the mobile phone is not a square, the shorter side needs to be placed horizontally, and the longer side needs to be placed vertically. The Y-axis direction is from the lower left corner of the screen along the vertical direction of the screen to t