This article illustrates how Android gets the size of a mobile screen. Share to everyone for your reference, specific as follows:
There are mainly three objects TextView, buttons, and Displaymetrics, where Displaymetrics is the key class to get the size of the phone screen , this example is very simple when we click on the button to trigger the event, Display the wide and high resolution of the mobile scre
Android reads mobile phone address book
Chen yuefeng, Java Studio
From: http://blog.csdn.net/mailbomb
Note: Please indicate the source for reprinting.
In Android development, reading the phone number in the mobile phone address book is a basic operation. However, due to the
-like (Unix-like) system. While Windows Phone continued in the 7.0 and 7.5 era, Microsoft's own embedded operating system--windows CE (Compact Edition) was adopted by Windows Mobile, although on mango and tango windows The Phone's slide performance is excellent, but some new features, such as multi-core processors, HD-level screens, and so on, are not supported, so Microsoft is using Windows Phone 8 directl
likelihood of third-party application errors, and reduces the damage to the entire system in the event of a third-party application error.To facilitate the integration of a wide range of hardware devices, Android provides a hardware abstraction Layer. Similar to the way VFS and storage devices collaborate in file systems, Hal refines the common features that different hardware vendors must provide, including them in generic modules, such as Radio Dae
This article examples for you to explain how to easily realize the Android phone camera function, share for everyone to reference. Specifically as follows:
I. Layout file Main.xml
Two, Mainactivity.java
Import Java.io.File;
Import Java.io.FileOutputStream;
Import android.app.Activity;
Import Android.hardware.Camera;
Import Android.hardware.Camera.PictureCallback;
Import Android.os.Bundl
The example in this article describes how Android is programmed to get a mobile phone back-office service. Share to everyone for your reference, specific as follows:
public static String Getrunningservicesinfo {StringBuffer serviceinfo = new StringBuffer ();
Final Activitymanager Activitymanager = (activitymanager) context. Getsystemservice (Context.activity_service);
List
I hope this article
In Android development, it is the most basic requirement that a user can make a call. As the saying goes, "All roads lead to Rome," the way to achieve a number of calls, today, to provide the most commonly used two kinds.
First of all, call, for the user, is a cost of operation, therefore, the need for certain permissions, that is, Android.permission.CALL_PHONE permissions, we need to add this permission in the Androidmenifest file:
The first way to
This article describes how Android obtains information such as the version of a mobile phone system. Share to everyone for your reference. as follows:
String Phoneinfo = "Product:" + Android.os.Build.PRODUCT;
Phoneinfo + = ", Cpu_abi:" + Android.os.Build.CPU_ABI;
Phoneinfo + = ", TAGS:" + Android.os.Build.TAGS; Phoneinfo = ", Version_codes. BASE: "+ Android.os.Build.VERSION_CODES."
BASE;
Phoneinfo
This article is an example of Android to determine whether the mobile phone network method, share for everyone to reference. The specific steps are as follows:
First, add the permissions associated with the connection network in Androidmanifest.xml:
Copy Code code as follows:
To determine the networking code is as follows:
Copy Code code as follows:
Connectivitymanager C
1. Uninstall or disable unused applications
When we use smartphones, we tend to install a large number of applications at the start, but many are largely unused, and these applications occupy RAM and storage space, so it is necessary to uninstall properly. Just go to the settings, open the Application menu, select or disable some content. Also, if you have a mobile or flat-panel support memory card extension, you can install the application on the storage card.
2. Clear the application cache
This paper illustrates the method of Android to realize the vibration setting of mobile phone. Share to everyone for your reference. Specifically as follows:
Main.xml Layout file:
Manifest file:
Vibrateactivity class:
Package com.ljq.activity;
Import android.app.Activity;
Import Android.app.Service;
Import Android.os.Bundle;
Import Android.os.Vibrator;
Import Android.widget.Comp
Recently in making an Android phone on the music player, learned a lot of things, such as the use of Fragment,actionbar, and so on, here is the first to introduce the implementation of the lyrics synchronization.
The realization of the lyrics synchronization is simple: Get the time and lyrics in the lyrics file LRC, and then play the corresponding content within the specified time. The difficulty lies in h
1. We are on the desktop of the computer right click on the desktop "computer/My Computer" and then click "Manage" in the pop-up menu as shown in the picture.
2. Then in the pop-up menu we click "Management" in the "Device Manager" shown in the following image.
3. Then we found "ADB Interface" or "Android Phone" devices in "Device Manager", which are usually shown in the first device. If the driver is
Android how to get phone records, this article for everyone to announce.
Get mobile phone call recording process:
1, to obtain contentresolver;
Contentresolver resolver = Getcontentresolver ();
2, Resolver.query (*);
URI:CallLog.Calls.CONTENT_URI that require incoming call records
3, the query to obtain the cursor data acquisition.
The main code is as foll
The absolute value to see the article, haha. I personally completed, there are errors please point out:
Now the phone perfect support HTML5, so if the phone end want to do a lottery module, with scraping card lottery effect, I believe this interactive experience is very good
PS: Because I do not have WP8 system of mobile phones, so can not be compatible with the WP8 system, the current perfect compatibility
Android mobile phone vibration settings (vibrator) Steps:
A, through the system services to obtain mobile phone vibration services, vibrator vibrator = (Vibrator) getsystemservice (Vibrator_service);
b, after the vibration service to detect the existence of vibrator:
Vibrator.hasvibrator ();
Detects if the current hardware has vibrator and returns true if it ha
BKJIA headlines: similar to Android mobile apps, Windows Phone 7WP7) apps are also written in hosting languages. Android uses Java and Windows Phone 7 uses C #, each of them provides a wide range of development libraries. Many differences between Java and C # are related to styles, which are closely related to C/C ++,
Android applications are often used to develop Android mobile phone contacts. In Android, listview is usually used to present mobile phone contacts. If you want to achieve full selection using checkbox, the default listview does not seem to solve this problem.
In the follo
Android-1-phone dial
Project package src -- java source code gen folder -- resource file, automatically generated after modification --- R. the drawable class in java corresponds to the drawable directory in the directory, layout corresponds to the layout directory, and String corresponds to the assets folder in the String directory to store large files, such as videos, audios, fonts, etc. (1 GB will not
Android alarm function, alarm bell sound, mobile phone starting to vibrate
To meet the company's project requirements, you must add the alarm function to the software,
Click the hand-drawn alarm icon to start shaking and send an alarm bell,
Layerlist, drawable, Vibrator, and soundpool are used.
Public class SosMainActivity extends BaseActivity {Private TextView sosTv1, sosTv2, sosTv3;Private int blueCo
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