Question

Im利用辅助器自动解救,其代码如下:

ITelephony.Stub.asInterface(ServiceManager.getService("phone"))
    .answerRingingCall();

I import ServiceManager.

import android.os.ServiceManager;

but there s a problem:The import android.os.ServiceManager cannot be resolved

我怎么能做到这一点? 增编

Answer 1

android.os. ServiceManager 是一个隐蔽的类别(即@hide)和隐蔽的班级(即使这些班级在 Java意义上是公开的)被从roid中删除。因此,在你试图进口<条码>时,你就错了。谷歌不希望成为有文件记载的公众人物。

Applications using non-public API cannot be compiled easily, there will be different platform versions of this class.

Answer 2

虽然这是老的,但没有人回答。任何隐蔽的班级都可以使用反射镜。这里的一个例子是,通过反转录计划,利用服务经理获得服务:

if(mService == null) {
            Method method = null;
            try {
                method = Class.forName("android.os.ServiceManager").getMethod("getService", String.class);
                IBinder binder = (IBinder) method.invoke(null, "My_SERVICE_NAME");
                if(binder != null) {
                    mService = IMyService.Stub.asInterface(binder);
                }

                if(mService != null)
                    mIsAcquired = true;

            } catch (NoSuchMethodException e) {
                e.printStackTrace();
            } catch (ClassNotFoundException e) {
                e.printStackTrace();
            } catch (IllegalAccessException e) {
                e.printStackTrace();
            } catch (InvocationTargetException e) {
                e.printStackTrace();
            }

        } else {
            Log.i(TAG, "Service is already acquired");
        }

Answer 3

As said above these methods work only on System apps or framework apps from Android N on words. Still we can code for System app for ServiceManager usage as below using reflection of Android Code

  @SuppressLint("PrivateApi")
    public IMyAudioService getService(Context mContext) {
        IMyAudioService mService = null;
        Method method = null;
        try {
            method = Class.forName("android.os.ServiceManager").getMethod("getService", String.class);
            IBinder binder = (IBinder) method.invoke(null, "YOUR_METHOD_NAME");
            if (binder != null) {
                mService = IMyAudioService .Stub.asInterface(binder);
            }
        } catch (NoSuchMethodException | ClassNotFoundException | IllegalAccessException | InvocationTargetException e) {
            e.printStackTrace();
        }
        return mService;
    }

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