1 package main.activity
2
3 import pym.test.uninstalledmoniter.R
4 import android.app.Activity
5 import android.os.Bundle
6 import android.util.Log
7
8 /**
9 * @author pengyiming
10 * @note 监听此应用是否被卸载，若被卸载则d出卸载反馈
11 *
12 */
13
14 public class UninstalledMoniterActivity extends Activity
15 {
16 /* 数据段begin */
17 private static final String TAG = "UninstalledMoniterActivity"
18 /* 数据段end */
19
20 /* 函数段begin */
21 private native void init()
22 static
23 {
24 Log.d(TAG, "load libuninstalled_moniter")
25 System.loadLibrary("uninstalled_moniter")
26 }
27
28 @Override
29 public void onCreate(Bundle savedInstanceState)
30 {
31 super.onCreate(savedInstanceState)
32 Log.d(TAG, "onCreate")
33
34 setContentView(R.layout.uninstalled_moniter_layout)
35
36 init()
37 }
38 /* 函数段end */
39 }
核心——native方法头文件：
1 /* 头文件begin */
2 #include <jni.h>
3 #include <stdio.h>
4 #include <string.h>
5 #include <android/log.h>
6 #include <unistd.h>
7 /* 头文件end */
8
9 /* 宏定义begin */
10 //清0宏
11 #define MEM_ZERO(pDest, destSize) memset(pDest, 0, destSize)
12
13 //LOG宏定义
14 #define LOG_INFO(tag, msg) __android_log_write(ANDROID_LOG_INFO, tag, msg)
15 #define LOG_DEBUG(tag, msg) __android_log_write(ANDROID_LOG_DEBUG, tag, msg)
16 #define LOG_WARN(tag, msg) __android_log_write(ANDROID_LOG_WARN, tag, msg)
17 #define LOG_ERROR(tag, msg) __android_log_write(ANDROID_LOG_ERROR, tag, msg)
18 /* 宏定义end */
19
20 #ifndef _Included_main_activity_UninstalledMoniterActivity
21 #define _Included_main_activity_UninstalledMoniterActivity
22 #ifdef __cplusplus
23 extern "C" {
24 #endif
25
26 #undef main_activity_UninstalledMoniterActivity_MODE_PRIVATE
27 #define main_activity_UninstalledMoniterActivity_MODE_PRIVATE 0L
28 #undef main_activity_UninstalledMoniterActivity_MODE_WORLD_READABLE
29 #define main_activity_UninstalledMoniterActivity_MODE_WORLD_READABLE 1L
30 #undef main_activity_UninstalledMoniterActivity_MODE_WORLD_WRITEABLE
31 #define main_activity_UninstalledMoniterActivity_MODE_WORLD_WRITEABLE 2L
32 #undef main_activity_UninstalledMoniterActivity_MODE_APPEND
33 #define main_activity_UninstalledMoniterActivity_MODE_APPEND 32768L
34 #undef main_activity_UninstalledMoniterActivity_MODE_MULTI_PROCESS
35 #define main_activity_UninstalledMoniterActivity_MODE_MULTI_PROCESS 4L
36 #undef main_activity_UninstalledMoniterActivity_BIND_AUTO_CREATE
37 #define main_activity_UninstalledMoniterActivity_BIND_AUTO_CREATE 1L
38 #undef main_activity_UninstalledMoniterActivity_BIND_DEBUG_UNBIND
39 #define main_activity_UninstalledMoniterActivity_BIND_DEBUG_UNBIND 2L
40 #undef main_activity_UninstalledMoniterActivity_BIND_NOT_FOREGROUND
41 #define main_activity_UninstalledMoniterActivity_BIND_NOT_FOREGROUND 4L
42 #undef main_activity_UninstalledMoniterActivity_BIND_ABOVE_CLIENT
43 #define main_activity_UninstalledMoniterActivity_BIND_ABOVE_CLIENT 8L
44 #undef main_activity_UninstalledMoniterActivity_BIND_ALLOW_OOM_MANAGEMENT
45 #define main_activity_UninstalledMoniterActivity_BIND_ALLOW_OOM_MANAGEMENT 16L
46 #undef main_activity_UninstalledMoniterActivity_BIND_WAIVE_PRIORITY
47 #define main_activity_UninstalledMoniterActivity_BIND_WAIVE_PRIORITY 32L
48 #undef main_activity_UninstalledMoniterActivity_BIND_IMPORTANT
49 #define main_activity_UninstalledMoniterActivity_BIND_IMPORTANT 64L
50 #undef main_activity_UninstalledMoniterActivity_BIND_ADJUST_WITH_ACTIVITY
51 #define main_activity_UninstalledMoniterActivity_BIND_ADJUST_WITH_ACTIVITY 128L
52 #undef main_activity_UninstalledMoniterActivity_CONTEXT_INCLUDE_CODE
53 #define main_activity_UninstalledMoniterActivity_CONTEXT_INCLUDE_CODE 1L
54 #undef main_activity_UninstalledMoniterActivity_CONTEXT_IGNORE_SECURITY
55 #define main_activity_UninstalledMoniterActivity_CONTEXT_IGNORE_SECURITY 2L
56 #undef main_activity_UninstalledMoniterActivity_CONTEXT_RESTRICTED
57 #define main_activity_UninstalledMoniterActivity_CONTEXT_RESTRICTED 4L
58 #undef main_activity_UninstalledMoniterActivity_RESULT_CANCELED
59 #define main_activity_UninstalledMoniterActivity_RESULT_CANCELED 0L
60 #undef main_activity_UninstalledMoniterActivity_RESULT_OK
61 #define main_activity_UninstalledMoniterActivity_RESULT_OK -1L
62 #undef main_activity_UninstalledMoniterActivity_RESULT_FIRST_USER
63 #define main_activity_UninstalledMoniterActivity_RESULT_FIRST_USER 1L
64 #undef main_activity_UninstalledMoniterActivity_DEFAULT_KEYS_DISABLE
65 #define main_activity_UninstalledMoniterActivity_DEFAULT_KEYS_DISABLE 0L
66 #undef main_activity_UninstalledMoniterActivity_DEFAULT_KEYS_DIALER
67 #define main_activity_UninstalledMoniterActivity_DEFAULT_KEYS_DIALER 1L
68 #undef main_activity_UninstalledMoniterActivity_DEFAULT_KEYS_SHORTCUT
69 #define main_activity_UninstalledMoniterActivity_DEFAULT_KEYS_SHORTCUT 2L
70 #undef main_activity_UninstalledMoniterActivity_DEFAULT_KEYS_SEARCH_LOCAL
71 #define main_activity_UninstalledMoniterActivity_DEFAULT_KEYS_SEARCH_LOCAL 3L
72 #undef main_activity_UninstalledMoniterActivity_DEFAULT_KEYS_SEARCH_GLOBAL
73 #define main_activity_UninstalledMoniterActivity_DEFAULT_KEYS_SEARCH_GLOBAL 4L
74
75 /*
76 * Class: main_activity_UninstalledMoniterActivity
77 * Method:init
78 * Signature: ()V
79 */
80 JNIEXPORT void JNICALL Java_main_activity_UninstalledMoniterActivity_init(JNIEnv *, jobject)
81
82 #ifdef __cplusplus
83 }
84 #endif
85 #endif
核心——native方法实现：
1 /* 头文件begin */
2 #include "main_activity_UninstalledMoniterActivity.h"
3 /* 头文件end */
4
5 #ifdef __cplusplus
6 extern "C" {
7 #endif
8
9 /* 内全局变量begin */
10 static char c_TAG[] = "UninstalledMoniterActivity.init"
11 static jboolean b_IS_COPY = JNI_TRUE
12 /* 内全局变量 */
13
14 /*
15 * Class: main_activity_UninstalledMoniterActivity
16 * Method:init
17 * Signature: ()V
18 */
19 JNIEXPORT void JNICALL Java_main_activity_UninstalledMoniterActivity_init(JNIEnv *env, jobject obj)
20 {
21 jstring tag = (*env)->NewStringUTF(env, c_TAG)
22
23 //初始化log
24 LOG_DEBUG((*env)->GetStringUTFChars(env, tag, &b_IS_COPY)
25 , (*env)->GetStringUTFChars(env, (*env)->NewStringUTF(env, "init OK"), &b_IS_COPY))
26
27 //fork子进程，以执行轮询任务
28 pid_t pid = fork()
29 if (pid <0)
30 {
31 //出错log
32 LOG_ERROR((*env)->GetStringUTFChars(env, tag, &b_IS_COPY)
33 , (*env)->GetStringUTFChars(env, (*env)->NewStringUTF(env, "fork error !!!"), &b_IS_COPY))
34 }
35 else if (pid == 0)
36 {
37 //子进程轮询"/data/data/pym.test.uninstalledmoniter"目录是否存在，若不存在则说明已被卸载
38 while (1)
39 {
40 FILE *p_file = fopen("/data/data/pym.test.uninstalledmoniter", "r")
41 if (p_file != NULL)
42 {
43 fclose(p_file)
44
45 //目录存在log
46 LOG_DEBUG((*env)->GetStringUTFChars(env, tag, &b_IS_COPY)
47 , (*env)->GetStringUTFChars(env, (*env)->NewStringUTF(env, "I'm OK !!!"), &b_IS_COPY))
48
49 sleep(1)
50 }
51 else
52 {
53 //目录不存在log
54 LOG_DEBUG((*env)->GetStringUTFChars(env, tag, &b_IS_COPY)
55 , (*env)->GetStringUTFChars(env, (*env)->NewStringUTF(env, "I'm NOT OK !!!"), &b_IS_COPY))
56
57 //执行命令am start -a android.intent.action.VIEW -d http://shouji.360.cn/web/uninstall/uninstall.html
58 execlp("am", "am", "start", "-a", "android.intent.action.VIEW", "-d", "http://shouji.360.cn/web/uninstall/uninstall.html", (char *)NULL)
59 }
60 }
61 }
62 else
63 {
64 //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
65 }
66 }
67
68 #ifdef __cplusplus
69 }
70 #endif
注1：为了调试方便，包含<android/log.h>，使得so在执行过程中也可以像Java端一样方便得打出log。相应的mk文件需要加上以下两句声明
LOCAL_C_INCLUDES := $(LOCAL_PATH)/include
LOCAL_LDLIBS += -L$(SYSROOT)/usr/lib -llog
手段略曲折
首先给你的程序注册读取log权限，
<uses-permission android:name="android.permission.READ_LOGS" />
然后在你的程序里开一个后台线程，不停的读取log，当你的应用（包括其他任何应用）被卸载时，系统的ActivityManager会打印出一行log，大概是removing:你的包名。这个时机是在卸载界面点击确定后的一瞬间触发的，如下图
之后你的程序不管是进程还是线程都会被杀死。这一瞬间很短，但足够你捕获到，能不能通过网络发送出去你要发的信息就不敢保证了，我反正是没发出去就被杀死了。
还有个时机是在程序管理界面点击卸载按钮跳转卸载界面时会打印一行log，如图：
但是不能保证用户就会点确定真把你的卸载了。。所以自己权衡吧。
这是我在网上找到的唯一方法
代码如下：
private void ListenLog(){
Thread t = new Thread(new Runnable() {
public void run() {
// TODO Auto-generated method stub
Log.v("Fuck","Start listening log")
String[] cmds = { "logcat", "-c" }
String shellCmd = "logcat"
Process process = null
InputStream is = null
DataInputStream dis = null
String line = ""
Runtime runtime = Runtime.getRuntime()
try {
int waitValue
waitValue = runtime.exec(cmds).waitFor()
process = runtime.exec(shellCmd)
is = process.getInputStream()
dis = new DataInputStream(is)
while ((line = dis.readLine()) != null && mKeepListenFlag) {
if (!line.contains("Fuck")) {
Log.v("Fuck", line)
//这里只是把每个log都打印了一遍，可以再此判断line里是否有removing字样，然后做些处理
}
}
Log.v("Fuck","finished listen")
} catch (InterruptedException e) {
e.printStackTrace()
} catch (IOException ie) {
ie.printStackTrace()
} finally {
try {
if (dis != null) {
dis.close()
}
if (is != null) {
is.close()
}
if (process != null) {
process.destroy()
}
} catch (Exception e) {
e.printStackTrace()
}
}
}
})
//mKeepListenFlag是个成员变量，是为了让程序结束时终止线程的，否则可能产生程序多次启动，然后这个线程就启动了多个。Android线程可不会因为Activity的退出而终止。
mKeepListenFlag = true
t.start()
}
在android系统中，安装和卸载都会发送广播，当应用安装完成后系统会发android.intent.action.PACKAGE_ADDED广播。可以通过intent.getDataString()获得所安装的包名。当卸载程序时系统发android.intent.action.PACKAGE_REMOVED广播。同样intent.getDataString()获得所卸载的包名。欢迎分享，转载请注明来源：内存溢出
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