Android系统实用工具类

SystemUtils.java

import android.content.Context;
import android.content.pm.PackageInfo;
import android.content.pm.PackageManager;
import android.net.ConnectivityManager;
import android.net.NetworkInfo;
import android.os.Environment;
import android.provider.Settings;
import android.telephony.TelephonyManager;
import android.text.TextUtils;

/**
 * 系统实用工具类
 * <p/>
 * Created by Clock on 2016/1/24.
 */
public class SystemUtils {

    private SystemUtils(){
    }
    
    /**
     * 获取设备的制造商
     *
     * @return 设备制造商
     */
    public static String getDeviceManufacture() {
        return android.os.Build.MANUFACTURER;
    }

    /**
     * 获取设备名称
     *
     * @return 设备名称
     */
    public static String getDeviceName() {
        return android.os.Build.MODEL;
    }

    /**
     * 获取系统版本号
     *
     * @return 系统版本号
     */
    public static String getSystemVersion() {
        return android.os.Build.VERSION.RELEASE;
    }

    /**
     * 获取设备号
     *
     * @param context
     * @return
     */
    public static String getDeviceIMEI(Context context) {
        TelephonyManager telephonyManager = (TelephonyManager) context.getSystemService(Context.TELEPHONY_SERVICE);
        if (telephonyManager == null || TextUtils.isEmpty(telephonyManager.getDeviceId())) {
            return Settings.Secure.getString(context.getContentResolver(), Settings.Secure.ANDROID_ID);
        } else {
            return telephonyManager.getDeviceId();
        }
    }

    /**
     * 获取应用的版本号
     *
     * @param context
     * @return
     */
    public static String getAppVersion(Context context) {
        PackageManager packageManager = context.getPackageManager();
        PackageInfo packageInfo;
        try {
            packageInfo = packageManager.getPackageInfo(context.getPackageName(), 0);
            return packageInfo.versionName;
        } catch (PackageManager.NameNotFoundException e) {
            e.printStackTrace();
        }
        return null;
    }

    /**
     * 判断当前有没有网络连接
     *
     * @param context
     * @return
     */
    public static boolean getNetworkState(Context context) {
        ConnectivityManager manager = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);
        NetworkInfo networkinfo = manager.getActiveNetworkInfo();
        if (networkinfo == null || !networkinfo.isAvailable()) {
            return false;
        }
        return true;
    }

    /**
     * SD卡是否挂载
     *
     * @return
     */
    public static boolean mountedSdCard() {
        return Environment.getExternalStorageState().equals(Environment.MEDIA_MOUNTED);
    }
}