Download the file using the downloadmanager provided by the Android system

In Android 2 After 3, the Android system provides a system component for other apps to download things, which is very convenient to use.

For example, we can download the new version APK of the app, register a broadcast receiver to receive the broadcast sent by the downloadmanager when the download is completed, and then install the program automatically.

The SDK adds the downloadmanager service in API level 9, which can hand over long-term download tasks to the system and be completely managed by the system.

Look directly at the example code:

Finally, the required permissions are:

If you need to hide the prompt and display of the download tool, modify the code:

Add the following permissions:

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