用来在应用中存储键值对配置
context.getSharedPreferences("prefName", Context.MODE_PRIVATE) get SharedPreferecnes instance sharedPref.getXXX("keyName", defaultValue) get value from SharedPreferences sharedPref.edit() get editor(SharedPreference.Editor) editor.putXXX("key-name", value) put value editor.commit() commit the changes
Prefer Maven dependency resolution instead of importing jar files. If you explicitly include jar files in your project, they will be of some specific frozen version, such as 2.1.1. Downloading jars and handling updates is cumbersome, this is a problem that Maven solves properly, and is also encouraged …
https://stackoverflow.com/questions/4249911/android-how-to-create-eap-wifi-configuration-programmatically
redirects to
https://stackoverflow.com/questions/4374862/how-to-programmatically-create-and-read-wep-eap-wifi-configurations-in-android
https://stackoverflow.com/questions/19170260/how-to-connect-to-wpa-eap-wifi-on-android-with-4-3-api
Android 6.0 changes
https://developer.android.com/about/versions/marshmallow/android-6.0-changes.html#behavior-network
working methods
https://stackoverflow.com/questions/12486441/how-can-i-set-proxysettings-and-proxyproperties-on-android-wi-fi-connection-usin
get real ip https://stackoverflow.com/questions …
From: http://tutorials.jenkov.com/maven/maven-tutorial.html
Maven is built around the pom.xml file. In Maven, how to build your project is predefined in the Maven Build Life Cycles, Phases and Goals. The POM file describes what to build, but most often not how to build it …
解析 json 有两种流派：
在 Python 中可以很容易的解析json文件，Python 中的 json.loads 是 document-based。而在 java 中可以使用 event-driven的。个人感觉这种 event-driven 的解析方式是多此一举，json本来定位就是小型的数据传输和配置存储，如果生成了一个很大的 json，应该考虑换用xml了。
在 Java 中需要生成和 JSON …
Go to Settings > Security > Install from storage.
install programatically can be achived by from command line, by moving certs to
replacing bks file solely is useless, it has to be combined with the password
https://github.com/danzeeeman/meerkat-decompiled/blob/master/io/fabric/sdk/android/services/network/PinningInfoProvider.java
set …
在安卓当中，Context几乎是无处不在的，每一个Activity是一个Context，每一个Service也是一个Context。
但是如果你新起了一个线程的话，你需要显式地把Context传递进去。
比如下面的例子：
public class DumpLocationLog extends Thread {
LocationManager lm;
LocationHelper loc;
public DumpLocationLog(Context context) {
loc = new LocationHelper();
lm = (LocationManager) context.getSystemService(Context.LOCATION_SERVICE);
}
public void run() {
lm.requestLocationUpdates(LocationManager.GPS_PROVIDER, 1000L, 500.0f, loc);
}
}
然后使用这个线程的时候，把this，也就是一个context的实例传递进去
new DumpLocationLog(this);
if you are in …
这里主要是需要在安卓上生成 host key，以及把自己的公钥传到安卓上
dropbearkey -t rsa -f /data/local/dropbear_host_key # 在安卓上生成key
adb push ~/.ssh/id_rsa.pub /data/local/authorized_keys # 在宿主机把自己的密钥传过去
dropbear -F -E -r /data/local/dropbear_host_key -A -N root -C jk -R /data/local/authorized_keys # 按照给定的key启动dropbear
dropbear -P /data/local/dropbear.pid -r /data/local/dropbear_host_key -A …apk studio
如何 sign：https://www.nevermoe.com/?p=373
smali code tutorial： https://forum.xda-developers.com/showthread.php?t=2193735
一篇很好的pdf的文档，利用smali code：http://www.security-assessment.com/files/documents/whitepapers/Bypassing%20SSL%20Pinning%20on%20Android%20via%20Reverse%20Engineering.pdf
使用自己的keystore实例化 TrustManagerFactory
关键语句
InputStream in = resources …asynchronusally run task without explicitly creating thread.
doInBackground(Params...)
onProgressUpdate(Progress...)
onPostExecute(Result)
Here is an example of subclassing:
private class DownloadFilesTask extends AsyncTask<URL, Integer, Long> {
protected Long doInBackground(URL... urls) {
int count = urls.length;
long totalSize = 0;
for (int i = 0; i < count; i++) {
totalSize += Downloader.downloadFile …