Cannot resolve symbol 'ALIGN_CENTER'

对于无法解析符号'ALIGN_CENTER'的问题，有几个可能的原因。首先，'ALIGN_CENTER'可能是一个自定义的符号，而您的代码中没有定义。这可能是由于您漏掉了必要的引用或库文件，或者在代码中没有正确定义该符号。请检查您的代码和依赖项，确保正确定义和引用了'ALIGN_CENTER'。

另外，'ALIGN_CENTER'也可能是一个预定义的符号，可能是在某个头文件中定义的。在这种情况下，您需要确保正确包含了相应的头文件，并链接到定义该符号的库文件。

最后，如果您使用的是第三方库或框架，'ALIGN_CENTER'可能是该库或框架定义的符号。在这种情况下，您需要查阅相关文档或官方文档，以获取有关如何正确使用和引用该符号的信息。

相关问题

Cannot resolve symbol 'ACTION_USB_STATE'

`ACTION_USB_STATE` is a constant defined in the `android.hardware.usb.UsbManager` class. It is used to broadcast USB state changes. If you are getting the error "Cannot resolve symbol 'ACTION_USB_STATE'", it means that you haven't imported the necessary class or there might be an issue with your Android project configuration.

To resolve this issue, make sure you have the following import statement at the top of your Java file:

import android.hardware.usb.UsbManager;

Also, ensure that you have the necessary permissions declared in your AndroidManifest.xml file:

<uses-permission android:name="android.permission.USB_PERMISSION" />

If you have already done these steps and still encounter the issue, try cleaning and rebuilding your project or restarting your IDE.

Cannot resolve symbol 'WRITE_EXTERNAL_STORAGE'

This error typically occurs when you are trying to use the WRITE_EXTERNAL_STORAGE permission in your Android application but have not declared it in the AndroidManifest.xml file.

To resolve this error, add the following line of code to your AndroidManifest.xml file:

<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>

This will declare the WRITE_EXTERNAL_STORAGE permission and allow your application to write to external storage.