Detailed explanation of Android monitoring network status method

Detailed explanation of Android monitoring network status method

1、 Join network permission

To obtain network information, you need to add corresponding permissions to the androidmanifest.xml file.

2、 Several schemes for judging mobile network

1) Determine whether there is a network connection

2) Judge whether WiFi network is available

4) Gets the type information of the current network connection

When developing Android applications, when it comes to network access, it is often necessary to check the network status to provide users with necessary reminders. You can usually do this through the connectivity manager.

Connectivity manager has four main tasks:

1. Monitor the mobile phone network status (including GPRS, WiFi, UMTS, etc.). 2. Send a broadcast when the mobile phone status changes. 3. Fail over when a network connection fails. 4. Provide the application with a high-precision and rough status that can obtain the available network

When we want to monitor the network status in the program, we only need the following steps:

1. Define a receiver overload onReceive function to complete the required functions, such as changing the appearance of the space according to whether WiFi and GPRS are disconnected

2, register Receiver in the right place, register in the program, and call the following functions in onCreate.

3, cancel the registration Receiver when appropriate, cancel it in the program, and call the following function in onDestroye:

Said so much. In fact, it mainly obtains the current network status through the connectivity manager or monitors the changes of network status. In this way, when the application needs networking, the user can be prompted in time when the network state changes, or the network data can be automatically obtained and refreshed when the network is reconnected.

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