First, obtain the device model, SDK version, and system version of the device.
View plain
String device_model = build. model;// Device Model
String version_sdk = build. version. SDK;// Device SDK version
String version_release =
Android provides the setting. Secure class. The official explanation of this class is to obtain the property value set by the system, but it cannot be modified. You need to set the property value through the system ui or a special API. However,
During Android Application Development, we often use a preset database or an existing third-party dynamic or static library for development, in this case, you need to modify the MAKEFILE file to copy the preset data or library files to the specified
Recently, I was looking at the source code in frameworks. I wanted to change it to see the effect. I didn't expect the simulator to run after the change.
First, we declare that I have successfully pushed Android 4.0.3 plugin and launcher. odex.
Now
Three monitoring methods have been implemented in Android touch messages:
1) pre-pressed: the semantics is that the user clicks the screen.
2) pressed: the semantics is that the user clicks the screen.
3) long pressed: the semantics is that the user
APK File FormatAndroid Application packagefile. Every application to be installed on the Android platform must be compiled and packaged into a single file with a suffix of. APK, which contains the application's binary code, resources, configuration
General steps:
Download the CTS package from here
Make sure that the android SDK has been installed and the ADB command has been added to the system path $ path
Refer to the Google CTS guide to configure hosts and devices. // The details are
JNI callback refers to calling Java functions in C/C ++ code. When a callback function is executed in a C/C ++ thread, the callback fails.
One of the solutions for Android systems is:
Replace the creation of all threads in C/C ++ with the
Public class Duan extends activity {/* declares the variable a button and two edittext */private button mbutton1; private edittext medittext1; private edittext medittext2;/** called when the activity is first created. * // @ override public void
Module: marvel 8787Kernel: 2.6.35
My module is shared by WiFi and Bluetooth. There is nothing to say about the Bluetooth porting part. Just load the Ko file.
For use, there is a problem in power management. Because the power supply of my Wi-Fi
Some time ago, the project encountered the problem that the press button light was not on. I looked at the Framework Code and found that the switch status of the slide had an impact on it.
Phonewindowmanager is defined as follows:
boolean
When I see so many hangup () of phoneutil, the headers are a bit dizzy. Let's just repeat it in detail.------- Gsmo. Java ---------Public void hangup () throws callstateexception{If (! Disconnected ){Owner. hangup (this); // The owner is the
I always wanted to study the property system of Android, but a recent project has come to an end, so I can start to study the relevant code.
According to my understanding, Android attributes are divided into two parts:
1. One part is system
Previously, we used speex encoding and decoding in applications. Recently, we have summarized the implementation of speex on Android. Speex is an open-source, free, and patent-free audio compression format. The speex project strives to reduce the
Android ndk has officially supported STL since r5b, and a crystax version is already supported. Two official versions are supported: GNU and stlport. If you need to use STL in your ndk program, you need to add an option in the application. mk file,
1. obtain data from the Internet:
1. Using the httpurlconnection object, we can obtain webpage data from the network.
URL url = new URL ("http://www.sohu.com ");
Httpurlconnection conn = (httpurlconnection) URL. openconnection ();
Conn.
Take a break on Saturday. If you don't have any learning skills, you can continue to work hard and cheer up (* ^__ ^ *)!
To learn about the menu, we need to know what a menu is. Let's take a look ~
Open the simulator or mobile phone, click the menu
1. Create remote service classes
(1) Service
Public class myservice extends Service {
// Remote service@ OverridePublic ibinder onbind (intent ){// Todo auto-generated method stubReturn new mybinder ();}
Private class mybinder extends iservice.
Public abstract class
Service
Extends contextwrapperImplements componentcallbacks class overview
A service is an application component representing either an application's desire to perform a longer-running operation while not interacting with the
Android now is an extremely popular mobile OS on the planet. this small robot creates a big world. includevelopers are also incluting themselves to Android development. for both novices and experts, you all need to keep your skills updated and know
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