android获取系统相关信息代码测试

package com.example.test;

import java.lang.reflect.Method;

import android.support.v7.app.ActionBarActivity;
import android.support.v7.app.ActionBar;
import android.support.v4.app.Fragment;
import android.telephony.TelephonyManager;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.ViewGroup;
import android.widget.TextView;
import android.os.Build;

public class MainActivity extends ActionBarActivity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
if (savedInstanceState == null) {
getSupportFragmentManager().beginTransaction()
.add(R.id.container, new PlaceholderFragment()).commit();
}
}

@Override
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.main, menu);
return true;
}

@Override
public boolean onOptionsItemSelected(MenuItem item) {
int id = item.getItemId();
if (id == R.id.action_settings) {
return true;
}
return super.onOptionsItemSelected(item);
}

public static class PlaceholderFragment extends Fragment {

public PlaceholderFragment() {
}

@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View rootView = inflater
.inflate(R.layout.fragment_main, container, false);
TextView tvView = (TextView)rootView.findViewById(R.id.tv);
tvView.setText(displayDevInfo()+"\nseri="+getSerialNumber());
return rootView;
}
}

private static String displayDevInfo(){
String txt = "host="+Build.HOST+"\n"+
"product="+Build.PRODUCT+"\n"+
"manufacturer="+Build.MANUFACTURER+"\n"+
"board="+Build.BOARD+"\n"+
"brand="+Build.BRAND+"\n"+
"id="+Build.ID+"\n"+
"user="+Build.USER+"\n"+
"display="+Build.DISPLAY+"\n"+
"fingerprint="+Build.FINGERPRINT+"\n"+
"device="+Build.DEVICE+"\n";
return txt;
}

private static String getSerialNumber(){
String serial = null;
try {
Class<?> c =Class.forName("android.os.SystemProperties");
Method get =c.getMethod("get", String.class);
serial = (String)get.invoke(c, "ro.serialno");
} catch (Exception e) {
e.printStackTrace();
}
return serial;
}
}