Android gets the status of monitoring SD card

Project introduction:

This item monitors the SD card status

Details:

After the application is deployed, when the SD card status is changed, the system will send toast notification to the user

The knowledge involved in this application includes:

1. One of the four components of Android: the use of broadcast recipients

2. Broadcast of SD card status

be careful:

1. The SD card can only be operated on the 2. X simulator, so the application should be deployed on the 2. X simulator

2. A broadcast receiver can accept multiple broadcasts. Just add multiple actions directly

3. SD card has different broadcasts in different states, mainly including three types:

4. To monitor the SD card status, be sure to add in the filter

Steps:

1. Create an Android project and create a broadcast receiver in the project. The code is as follows:

2. Add a receiver to the list file. No permission is required to listen to the SD card:

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