Android master path: Serializable and Parcelable, two methods of Intent passing objects in Android
In Android, two methods are passed: Serializable and Parcelable.
Serializable is supported by J2SE. Parcelable is unique to Android.
Use Cases and differences:
1) when using m
Androidmanifest.xml:android:name= "Com.bignerdranch.android.photogallery.PRIVATE"android: ProtectionLevel= "signature"/>android:name= " Com.bignerdranch.android.photogallery.PRIVATE "/>To use a permission, pass it as a parameter to Sendbroadcast (), with this permission, all apps must use the same permissions to accept the intent we send.How do you protect our broad receiver? Other apps can trigger it by c
Android notes Intent usage Summary
Intent:
Official explanation:
An intent is an abstract description of an operation to be performed med. It can be usedstartActivityTo launchActivity,broadcastIntentTo send it to any interestedBroadcastReceiverComponents, andstartService(Intent
Intent---to express his intentions can be activated via Intent (activity, service, Broadcastreceiver)Intent is an important medium for communication between program components A intent object can contain only one action Intent properties: Component, Action, Category, Data, T
Intent, also known as intent, is a run-time binding mechanism that links two different components (activity, Service, Broadcastreceiver) in the process of running a program. By intent, the program can express some kind of request or intention to Android, and Android will cho
Intent intent is a very important part of Android, and he has a wide range of applications in Activity,service.
1
public void StartActivity (Intent Intent)
Ordinary
Initiates an activity and transmits data via
end the activity.The following code is a demo sample:Create intent to deliver some kind of result data intent result = new Intent ("Com.example.RESULT_ACTION", Uri.parse ("Co Ntent://result_uri "); Setresult (ACTIVITY.RESULT_OK, result); finish ();The above is the use of intent in different activity for information tr
"0" The basic design concept of Android is to encourage the reduction of coupling between components, so Android provides intent (intent), intent provides a common messaging system that allows you to pass intent between your appli
1. To solve this problem, you must first understand what is implicit (hidden) intent and what is explicit (explicit) intent.
Explicit intent explicitly specifies the acitivity to be startedFor example, the following JavaCode:Intent intent = new intent (this, B. Class)
Im
Learn Android notes by yourself -- use intent in activity1. Intent introduction:
Intent stands for "intention, intention" in Chinese. In Android, the Intent mechanism is provided to assist in interaction and communication between
Pendingintentpendingintent literal meaning: waiting, intent not determined.To get a Pendingintent object that uses a static method of the getActivity(Context, int, Intent, int) getBroadcast(Context, int, Intent, int) method class, getService(Context, int, Intent, int) 分别对应着Intent
When we started out, we often suffered from problems that were originally easy to solve, and we often spent a lot of time.I tried my best to find a solution and finally realized that it was so simple. This was caused by the English world.Intent plays a significant role in Android application development.There is already a lot of information on the Internet, and it is no longer cumbersome here. I like to go straight. I can see many links on the Interne
Intent exception handling and common system callsJIANGDG_VIPhttp://blog.csdn.net/u012637501first, intent exception handlingWhen the intent object launches a component or an app, it can cause an exception because of a component's setup error or if the application is not installed. In general, an exception exits when an exception is applied. Because, in order not t
In Android, there are two main ways for intent to pass objects: Bundle. putSerializable (Key, Object) and Bundle. putParcelable (Key, Object); of course, these objects have certain conditions. The former implements the Serializable interface, and the latter implements the Parcelable interface, the following is an example for you.First, we create a project named ObjectTestDemo.Then, modify the main. xml layo
Intent should be something peculiar to Android. You can specify the actions that the program will run in intent (for example: view,edit,dial), and the data that the program needs to run to that action. When all is specified, just call StartActivity () and the Android system will proactively look for the application tha
Intent should be considered something peculiar to Android. You can specify in intent the action to be performed by the program (for example, view,edit,dial), and the data that the program needs to perform to the action. is specified, the Android system automatically looks for the application that best meets your specif
Android: launchmode = "singletask" and onnewintent (intent) are two features. Here, we will summarize the experience:
Android: launchmode = "singletask" is configured in mainifest, which ensures that there is always only one activity in the stack, no matter how many times you start it;
Onnewintent (intent) is the paren
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