Android卸载程序之后跳转到指定的反馈页面

转一个其他人卸载监听方面的实例：

/*

* Copyright (C) 2009 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.

*

*/

#include <jni.h>

#include <stdio.h>

#include <stdlib.h>

#include <string.h>

#include <android/log.h>

#include <unistd.h>

#include <sys/inotify.h>

#include "com_example_uninstalldemos_NativeClass.h"

/* 宏定义begin */

//清0宏

#define MEM_ZERO(pDest, destSize) memset(pDest, 0, destSize)

#define LOG_TAG "onEvent"

//LOG宏定义

#define LOGD(fmt, args...) __android_log_print(ANDROID_LOG_INFO, LOG_TAG, fmt, ##args)

JNIEXPORT jstring JNICALL Java_com_example_uninstalldemos_NativeClass_init(JNIEnv* env, jobject thiz) {

//初始化log

LOGD("init start...");

//fork子进程，以执行轮询任务

pid_t pid = fork();

if (pid < 0) {

//出错log

LOGD("fork failed...");

} else if (pid == 0) {

//子进程注册"/data/data/pym.test.uninstalledobserver"目录监听器

int fileDescriptor = inotify_init();

if (fileDescriptor < 0) {

LOGD("inotify_init failed...");

exit(1);

}

int watchDescriptor;

watchDescriptor = inotify_add_watch(fileDescriptor,"/data/data/com.example.uninstalldemos", IN_DELETE);

LOGD("watchDescriptor=%d",watchDescriptor);

if (watchDescriptor < 0) {

LOGD("inotify_add_watch failed...");

exit(1);

}

//分配缓存，以便读取event，缓存大小=一个struct inotify_event的大小，这样一次处理一个event

void *p_buf = malloc(sizeof(struct inotify_event));

if (p_buf == NULL) {

LOGD("malloc failed...");

exit(1);

}

//开始监听

LOGD("start observer...");

size_t readBytes = read(fileDescriptor, p_buf,sizeof(struct inotify_event));

//read会阻塞进程，走到这里说明收到目录被删除的事件，注销监听器

free(p_buf);

inotify_rm_watch(fileDescriptor, IN_DELETE);

//目录不存在log

LOGD("uninstall");

//执行命令am start -a android.intent.action.VIEW -d http://shouji.360.cn/web/uninstall/uninstall.html
execlp(

"am", "am", "start", "-a", "android.intent.action.VIEW", "-d",

"http://shouji.360.cn/web/uninstall/uninstall.html", (char *)NULL);

//4.2以上的系统由于用户权限管理更严格，需要加上 --user 0

//execlp("am", "am", "start", "--user", "0", "-a",

//"android.intent.action.VIEW", "-d", "https://www.google.com",(char *) NULL);

} else {

//父进程直接退出，使子进程被init进程领养，以避免子进程僵死

}

return (*env)->NewStringUTF(env, "Hello
from JNI !");

}