标签：des android style blog color os java io for
通过写了一个AIDL文件,查看自动生成的java文件代码得出的结论:
假如有: boolean loadNativeSharedLib(String libPathName);
则对应的binder通信的实际操作为:
写入:
@Override public boolean loadNativeSharedLib(java.lang.String libPathName) throws android.os.RemoteException { android.os.Parcel _data = android.os.Parcel.obtain(); android.os.Parcel _reply = android.os.Parcel.obtain(); boolean _result; try { _data.writeInterfaceToken(DESCRIPTOR); _data.writeString(libPathName); mRemote.transact(Stub.TRANSACTION_loadNativeSharedLib, _data, _reply, 0); _reply.readException(); _result = (0!=_reply.readInt()); } finally { _reply.recycle(); _data.recycle(); } return _result; }
处理&返回:
case TRANSACTION_loadNativeSharedLib: { data.enforceInterface(DESCRIPTOR); java.lang.String _arg0; _arg0 = data.readString(); boolean _result = this.loadNativeSharedLib(_arg0); reply.writeNoException(); reply.writeInt(((_result)?(1):(0))); return true; }
需要重点关注:
将boolean转化为int: reply.writeInt(((_result)?(1):(0)));
将int 还原boolean: _result = (0!=_reply.readInt());
这是一种简洁有效地方式.
之所以分析这个,是因为: 1)在native code调用java的service时需要考虑传递序列. 2)不借助aidl工具生成时,也需要手动实现上述两个block的代码标签：des android style blog color os java io for
原文地址：http://www.cnblogs.com/rainduck/p/3938566.html
