Android framework中使用stl库

在Android的framework或者ndk中使用stl库中的方法，如std::string 时需要修改Android.mk文件添加相应的库支持。

主要步骤如下:

   LOCAL_SHARED_LIBRARIES中添加libstlport；

   LOCAL_C_INCLUDES中添加    external/stlport/stlport  bionic  bionic/libc/private

如下为本文修改的方法：

# Copyright (C) 2010 The Android Open Source Project
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#      http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

LOCAL_PATH:= $(call my-dir)

include $(CLEAR_VARS)
LOCAL_SRC_FILES := test.cpp

LOCAL_SHARED_LIBRARIES := \
    libandroid_runtime \
    libcutils \
    libutils \
    liblog  \
    libnativehelper \
    libstlport  \
    
LOCAL_C_INCLUDES += \
    $(JNI_H_INCLUDE) \
    external/stlport/stlport \
    bionic \
    bionic/libc/private \
    
      
LOCAL_MODULE:= liblsphone

include $(BUILD_SHARED_LIBRARY)

使用demo

在cpp中使用std标准库中的string类时需要注意如下步骤：

1.导入头文件

   #include <string>

2.添加类的引用命名空间

   using namespace std;