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androidcameraandroid-contextled

LED flash light activation

I am trying to use the flash LED that is built into my android device. I found an existing question that was very helpful but I am seeing a strange compile error now. The problem is the part of my code where I check availability of flash.

boolean FlashAvails=Context.getPackageManager().hasSystemFeature(PackageManager.FEATURE_CAMERA_FLASH);

There is a compile error that reads "Cannot make a static reference to a non-static method getPackageManager() from type Context".

Solution

  • The method getPackageManager() is not static, according to the Javadoc: http://developer.android.com/reference/android/content/Context.html

    You'll need to get a reference to the context and then you can call the method.

    To get a reference to the context you can all:

    Context appContext =  Context.getApplicationContext();

    Then you can get access to the package manager as follows:

    appContext.getPackageManager().hasSystemFeature(PackageManager.FEATURE_CAMERA_FLASH);

    Make sure to include the import:

    import android.content.Context;

    Assuming you're using Eclipse, you can press: ctrl-shift-o and it will reorganize your imports and pull in anything that's missing.

    If you're still having trouble, another way is to get the Camera Parameters, as described in this posting: How to find flashlight feature is available or not in device < = sdk 4