导入android包类时出错

Question

i need to capture the signal strength of available Gsm operators,i found we can do this INetworkQueryService aidl interface and this interface uses some of the callbacks which requires to import com.android.phone.INetworkQueryServiceCallback, when i import, i get Error as couldn't find import for class com.android.phone.INetworkQueryServiceCallback

In order to resolve the above issue i created the package with same qualifier and mapped the respective .java classes.But my confusion is since this packages are the part of android SDK is it necessary for me to create them manually and map each and every .java classes as well as don't it create any kind of performance overheads.

Please refer the below link to know what i am doing let me known is there better solution to achieve this issue.

Android: How do I get GSM signal strength for all available network operators

Answer 1

You have to download .jar and include that to class path or add it to you project build path or as external library.You don't have this library in built you have to add it to your project.

You also need to read:

Android adding external libraries to project

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You can see class here

Download Jar(Binary Download)