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} @
The example in this article describes how the Android programming implementation will apply forced loading to the phone's memory. Share to everyone for your reference, specific as follows:
Android:installlocation is introduced in Froyo (Android 2.2,api level:8). By setting this property, developers and users can determine where the program is installed.
Android:installlocation is subordinate to the manife
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
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
Recommended reading:
An analysis of Android phone defender SIM card binding
An in-depth analysis of the Android phone defender MD5 encryption when saving passwords
Detailed Android Phone Guardian Settings Wizard page
An analys
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
Reprint Address: http://blog.csdn.net/sunxingzhesunjinbiao/article/details/7021328
AndroidAcquisition of the local number and SIM card status
Telephonymanager This class is useful and can get a lot of information about mobile phones and SIM cards.Immediately after the comment code, please enjoy
Package Net.sunniwell.app;Import Android. App. activity;Import android. Os. Bundle;Import
my mobile phone and the version is 3.0.7.
I also installed a re manager.
First, open the re manager. At this time, the Re manager Requests the root permission. The superuser will pop up a prompt asking whether the user permits
Before clicking "allow", select "remember" and then allow.
This step is used to obtain the data that should be inserted in the superuser database when the application obtains permanent root permission.
Then we export the databa
Phone Dialer Development steps:1. Add the call permissions in the manifest file2. Call the core codeCreate a new Intent object Intent Intent_call = new Intent ();Add an action intent_call.setaction (Intent.action_call) for the intent object;Add Data Intent_call.setdata (Uri.parse ("Tel:" + phone number) for the intended object; Execution Intent StartActivity (Intent_call);
Android activation key failure to start the mobile phone solution, android SolutionProblem description
The Android phone's key is damaged and cannot be started.
Solution
Connect your mobile phone to your computer through USB cable, go to the command line, find the d
Motion sensors are useful for monitoring the movement of devices, such as tilt, vibration, rotation, and swing, which are the monitoring ranges of motion sensors. The movement of a device is usually a direct response to user input.All motion sensors return a value of three floating-point numbers, and for different sensors, the three values have different meanings. For example, for an accelerometer, the acceleration data for three axes is returned. For a gyroscope sensor, the rotational angular v
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
According to a latest report from mobile phone retailers in the UK, Android sales andWindows Phone 7The ratio is 15:1. This result indicates that Windows Phone 7 may be in trouble. Microsoft launched Windows Phone 7 in the North American market in November 8 and is considere
We usually develop when the file cache, commonly used in the mobile phone internal storage and external storage of mobile phones, mobile phone internal storage mainly includes the app after the installation of some files, external storage is commonly used by the space, used to save some pictures of movies and so on.
When fast-read cache files are generally stored in the internal storage, because the interna
The recently made. NET project (Windows Service) needs to send a push message to the Android phone, it's a little hard to keep searching the document, and finally see an open source project Pushsharp, Can be in the. NET platform to push ios,android,windows phone and other equipment news, exultation, and then do the iOS
Android Ril-javaRil-java is essentially a RIL agent that plays a forwarding role and is the starting point of the phone system in the Android Java conceptual space. In Ril-d's analysis, we know that Rild set up a listening socket interface, waiting for Ril-java connections. Once the connection is successful, Ril-java can initiate a request, wait for the reply, an
Recently to be in the running to find a job, inevitably in the interview process encountered such a problem, remember the most clearly in the interview process was asked, when the mobile phone in a weak network state, how to deal with, how to monitor the network signal intensity changes. But it was so, the answer was messy, the idea was not clear at all. Today's small knitting here to lead you to understand the mobile
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