To put it simply, parcel is a container that stores read data,In the Android system, the binder Process Communication (IPC) uses the parcel class to exchange data between the client and the server, and aidl data also interacts with each other
Android has done a good job in international and multi-language switching. An application only needs to name the values-[language] folder of the corresponding language family, you can switch between multiple languages by using "Settings"> "Language &
In the past two days, the company organized a tour. The upgraded sdk2.3 was just installed, but it hasn't been carefully viewed yet. Let's take a look at it today.
2.3sdk has two new features:
1. when I first installed 2.3, I checked the SDK
If you like to get started, skip to the third section because the problem described in the second section is abstract. Ignoring the second section does not affect understanding.
A while ago, our company's app project finally solved the bug that a
There are two ways to create a shortcut in Android.The first method is to set setresult (result_ OK, intent); by referring to the one written in API demos. This method will be analyzed later.This article describes how to create a shortcut in Android
Tianchao has a very powerful crab, and many other tools such as YouTube and Twitter cannot be used. I have occupied space on my mobile phone. I have been trying to find a way to delete the unused system packages.
Declare that this method is only
Attribute system is an important feature of Android. It runs as a service and manages system configurations and statuses. All these configurations and statuses are attributes. Each attribute is a key-value pair, and its type is a string.
In terms
The implementation in a recent project has implemented many functions, but there is not much nonsense.
Before
After
Implementation principle:1. Get the full screenView view = activity. getwindow (). getdecorview ();View. setdrawingcacheenabled
/** * Pass the touch screen motion event down to the target view, or this * view if it is the target. * * @param event The motion event to be dispatched. * @return True if the event was handled by the view, false otherwise. */
1. Intent usage:
(1) Jump with action1. Use action to jump. If there is an activity in androidmanifest. xml of a program
The intentfilter segment defines the same action.The intent matches the target action. If type and category are not defined in
Recently, when saving the game status, you need to store the background music for mute, which has never been successful and always reports the following error:
Error/mediaplayer (9974): Start called in State 64Error/mediaplayer (9974): Error (-38, 0
In order to defend against the thesis, we will have a one-week Android study. It mainly compares and learns through analogy, hoping to help readers.
1.JDKInstallation, many online tutorials (Click here)).
JDK is equivalent to the framework in. net.
The content here is as follows: get data from the database, assign the value of the data to the text attribute of radiobutton, and assign the key value of the data to the key value of radiobutton. At the same time, click the entire line and change
When I was playing an Android app a few days ago, I found that this app has a very interesting feature: one-click complaint. If you are not satisfied with this application, you can leave a message or call a complaint to reflect your dissatisfaction.
Method:For applications stored in the/system/app, you need to set the persistent attribute in the manifest. xml file of the app, such as the androidmanifest. xml file of the app 'phone:
Android: Persistent =
Start
The SIM card and status are obtained when the wireless module is initialized during startup. After Initialization is complete, call the VM. systemready () function to notify the corresponding lockscreen to unlock.
In the
1> Establish/disconnect a device
Image Acquisition and dump acquisition both need to be connected to the device for use. we achieve this through the connection provided by ADB and get the device.
In the process of establishing a connection with the
Understanding
Android processes key events and keycode definitions in frameworks/base/CORE/Java/Android/View/keyevent. in Java, and frameworks/policies/base/phone/COM/Android/Internal/policy/impl/phonewindowmanager. in Java, Android defines the
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