package zz.itcast.mobileSafe.activity;
import java.io.IOException;
import java.io.InputStream;
import java.net.HttpURLConnection;
import java.net.MalformedURLException;
import java.net.URL;
import zz.itcast.mobileSafe.utils.StreamUtils;
import android.app.Activity;
import android.content.pm.PackageInfo;
import android.content.pm.PackageManager;
import android.content.pm.PackageManager.NameNotFoundException;
import android.os.Bundle;
import android.util.Log;
import android.widget.TextView;
@SuppressWarnings(“unused”)
public class SplashActivity extends Activity {
private TextView tv_version;
private String versionName;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
intiViews();
tv_version.setText(“版本名” getVersionName());
checkVersion();
}
private void intiViews() {
tv_version = (TextView) findViewById(R.id.tv_version);
}
private String getVersionName() {
PackageManager packageManager = getPackageManager();
try {
PackageInfo packageInfo = packageManager.getPackageInfo(
getPackageName(), 0);
versionName = packageInfo.versionName;
int versionCode = packageInfo.versionCode;
System.out.println(versionCode “—” versionName);
} catch (NameNotFoundException e) {
e.printStackTrace();
}
return versionName;
}
private void checkVersion() {
// 进行联网操作，因为是耗时操作，需要放在子线程中去做
new Thread(new Runnable() {
@Override
public void run() {
try {
URL url = new URL(“http://192.168.149.2:8080/update.json”);
try {
HttpURLConnection conc = (HttpURLConnection) url
.openConnection();
conc.setConnectTimeout(5000);
conc.setRequestMethod(“GET”);
conc.setReadTimeout(5000);
conc.connect();
int code = conc.getResponseCode();
if(code==200){
//连接成功，获取输入流
InputStream stream = conc.getInputStream();
String result = StreamUtils.StreamToString(stream);
Log.d(“网络结果”, result);
}
} catch (IOException e) {
e.printStackTrace();
}
} catch (MalformedURLException e) {
e.printStackTrace();
}
}
}).start();
}
}
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