Android解析解析XML文件升级文件升级APK的方法的方法
安装安装APK
public class DownLoadApk {
public static SharedPreferences sharedPrederences = null;
//启动安装界面
public static void DownId(Context context, long downId){
DownloadManager mDownloadManager = (DownloadManager) context.getSystemService(Context.DOWNLOAD_SERVICE);
Uri downloadUri = mDownloadManager.getUriForDownloadedFile(downId);
startInstall(context, downloadUri);
}
/**
* 跳转到安装界面
* @param context 作用域
* @param uri 包名
*/
private static void startInstall(Context context, Uri uri) {
Intent install = new Intent(Intent.ACTION_VIEW);
install.setDataAndType(uri, "application/vnd.android.package-archive");
install.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
context.startActivity(install);
}
//删除文件
public static boolean fileDelete(String filePath) {
File file = new File(filePath);
if (file.exists() == false) {
return false;
}
return file.delete();
}
发送请求获取输入流发送请求获取输入流
Thread thread = new Thread() {
@Override
public void run() {
super.run();
//XML存放在ftp服务器的地址
String path = FileUtils.getDevice_address()+"News.XML";
try {
URL url = new URL(path);
HttpURLConnection conn = (HttpURLConnection) url
.openConnection();
conn.setRequestMethod("GET");
conn.setConnectTimeout(5000);
conn.setReadTimeout(5000);
//发送http GET请求，获取相应码
if (conn.getResponseCode() == 200) {
InputStream is = conn.getInputStream();
//使用pull解析器，开始解析这个流
parseNewsXml(is);
}
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
};
thread.start();
解析解析XML文件文件
private void parseNewsXml(InputStream is) {
XmlPullParser xp = Xml.newPullParser();
try {
xp.setInput(is, "utf-8");
//对节点的事件类型进行判断，就可以知道当前节点是什么节点
int type = xp.getEventType();
News news = null;
while (type != XmlPullParser.END_DOCUMENT) {
switch (type) {
case XmlPullParser.START_TAG:
if ("newslist".equals(xp.getName())) {
newsList = new ArrayList<>();
break;
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