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在前面的讨论中，我们说到，如果在客户端懒得使用aidl文件生成的接口类进行binder，可以使用IBinder的transcat方法

	    	 Parcel dataParcel = Parcel.obtain(); Parcel resultParcel = Parcel.obtain();dataParcel.writeInterfaceToken(DESCRIPTOR);//发起请求	 aProxyBinder.transact(3, dataParcel, resultParcel, 0);

还有一个更方便的binder调用测试方式，使用service命令。

service命令

看看help信息，

$ service -h
Usage: service [-h|-?]service listservice check SERVICEservice call SERVICE CODE [i32 N | i64 N | f N | d N | s16 STR | null | fd f | nfd n | afd f ] ...
Options:i32: Write the 32-bit integer N into the send parcel.i64: Write the 64-bit integer N into the send parcel.f: Write the 32-bit single-precision number N into the send parcel.d: Write the 64-bit double-precision number N into the send parcel.s16: Write the UTF-16 string STR into the send parcel.null: Write a null binder into the send parcel.fd: Write a file descriptor for the file f into the send parcel.nfd: Write the file descriptor n into the send parcel.afd: Write an ashmem file descriptor for a region containing the data fromfile f into the send parcel.

service call调用传入对应的参数信息即可，比如

service call SERVICE_name 1 i32 112

表示调用SERVICE_name这个binder服务的第1个接口方法，传入int32类型的参数值112

service的代码在

frameworks/native/cmds/