android intent scheme

7th lesson for video tutorials for Joshui teachersThis course explains intent, an abstract description of the action, meaning of intent, and the creation of a intent can give an action to him to execute. Inten is the essence of Android development.One, click the button to make a call to a specific numberBtn1.setonclick

Three core components in Android applications: Activities,services and broadcast receivers are activated by messages called "Intent." One feature of Android applications is "low coupling", where individual activities,services and broadcast receivers are quite independent and can be viewed as "mini apps", and intent are

with it is not pushed into the stack. For example, a, B. B Opens the C,c with this flag and then opens D, but D returns without passing C, directly to B. 6,pendingintentThe use of pendingintent should be noted for its getactivity (), GetService () and Getbrocast () methods, for the intent in the package, and sometimes for the setting of class parameters, it is best to use Class.forName ( ) to set. Intent a

Android Intent and Activity, androidintentIntent can be said to be the soul of Android. When the program jumps and transmits data, it basically depends on Intent. Intent is very important in Android applications. Understanding

Intent can be said to be the soul of Android, the program jumps and transmits data is basically by intent. Intent is very important in Android applications, and it is very helpful to understand that the intent is programmed accord

Shortcut Key To increase the operation speed of the option menu, you can add shortcuts to the menu on devices with physical buttons. the shortcut key can correspond to letters or numbers on the keyboard. you need to specify the android: alphabeticShortcut and android: numericShortcut attributes for the For example, if you use the "s" key as the shortcut key for the menu item "save", when the menu is opened

To respect the author, put the author link at the beginning. From: http://hi.baidu.com/lvqiyong/blog/item/7645152733f3af7435a80ff1.htmlIf an intent request executes an action on a piece of data, how does Android know which application (and component) can respond to this request? Intent filter is used to register activity, service, and broadcast referers to execut

Intent is very common in Android programming, and it has been shown in "Android" to use bundles to transfer values between multiple activity (clicking the Open link) to wake up other activity and pass data between the activity. In fact, the role of intent is far from this, it can also invoke other inherent programs in

The example in this article describes the way Android implements data transfer between activity based on intent. Share to everyone for your reference, specific as follows: Mainactivity: Package Com.test.intentdemo; Import android.app.Activity; Import android.content.Intent; Import Android.net.Uri; Import Android.os.Bundle; Import Android.view.Menu; Import Android.view.View; Import Android.widget.Butto

on it, there will be something similar to what happens when you click and share in a hand swim. Take a look at the screenshot below: Here on the road to Android Learning _3 and Andrew _4 are two different applications, the current program name is called the Android Learning Path _4, then click the first, the following will occur: As shown in the figure above, the text appears in the activity in this appl

The following is an util class for sending emails with intent. attachments can be sent. // Mailutil. javapackage COM. maclab. util; import Java. io. file; import COM. dropbox. client2.session. session. accesstype; import android. content. context; import android. content. intent; import

in the process of Android development, intent is our most commonly used Android mechanism for in-process or inter-process communication. Intent is mainly used in 2 scenarios: initiating intent, broadcastingIts underlying implementation principle is not covered in this articl

switching By default, the screen toggles, destroys the current activity, and re-creates a new activity Shortcut key Ctrl+f11 In some special application scenarios, such as games, you do not want the activity to be destroyed and recreated when the screen is switched Requirements: Disable the life cycle of the screen switch Write dead on the screenandroid:screenorientation= "Landscape"android:screenorientation= "Portrait" Let the sys

There are times when we need to use a privacy boot for our service, but when Android 5.0 comes out, one of the features is Service Intent must be explitict , which means that service services must be started in a display mode starting with Lollipop. And the Android source code is written like this (source location: Sdk/sources/

There are times when we need to use the service for privacy boot, but when Android 5.0 comes out, one of the features is the service Intent must be explitict, That is to say, starting with lollipop, service services must be started in a display manner. and the Android source code is written like this (source location: Sdk/sources/

An Android application typically has more than one activity that communicates with each other and transmits data or jumps from one activity to another. This allows an application to have a rich functional and diverse interface. Intent objects are required for activity to pass data and to jump to each other. Intent has many uses in the

In the Android Application Framework, there is a powerful event processing mechanism-Intent ). Intent is similar to event, but it is different from traditional event processing. Traditional event processing focuses on handler. when an event occurs, the handler of the callback event or directly sends the event to the application, the processing method is determine

reset. When we return a back-end task to the foreground, the system will have a flag_activity_reset_task_if_needed tag attached to the action in a particular case, which means that the task is reset if necessary, flag_activity_clear _when_task_reset will take effect. After testing, for a background application, if the main menu click on the application, this action contains flag_activity_reset_task_if_needed tag, long press the home key, and then click the recent record, this action does not co

two parameters, and the first parameter context requires that each start activity be given the contexts, and the second class specifies the activity target that you want to start. the StartActivity () method is used to initiate the activity to perform this intent. 5. Implicit Intentfirst modify the secondactivity that you just registered in Androidmanifest:then modify the button listener in the mainactivity:Button BT1 = (button) Findviewbyid (r.id.bu

Using Android's intent to invoke another activity, the use of a multithreaded mechanism, asynchronous way. Startactivityforresult is called after the activity does not return the result immediately to the Acitivity object that called Activity,android The Startactivityforresult source code has the relevant explanation. /*** Launch an activity for which you would like a result? ? ? ? ? ? When it finished. ? ?