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来源：互联网发布：二选一数据选择器编辑：程序博客网时间：2024/05/17 05:50
<pre name="code" class="java">import java.lang.reflect.Field; import java.lang.reflect.Method; import android.content.Context; import android.content.pm.PackageInfo; import android.content.pm.PackageManager; import android.content.pm.PackageManager.NameNotFoundException; import android.content.res.Configuration; import android.net.ConnectivityManager; import android.net.NetworkInfo; import android.telephony.TelephonyManager;  public class DeviceUtils {  public static int dip2px(Context context, float dpValue) { final float scale = context.getResources().getDisplayMetrics().density; return (int) (dpValue * scale + 0.5f); }  public static int deviceWidth(Context context) { return context.getResources().getDisplayMetrics().widthPixels; }  public static int deviceHeight(Context context) { return context.getResources().getDisplayMetrics().heightPixels; }  public static int px2dip(Context context, float pxValue) { final float scale = context.getResources().getDisplayMetrics().density; return (int) (pxValue / scale + 0.5f); }  public static boolean isNetworkConnected(Context context) {  if (context != null) { ConnectivityManager mConnectivityManager = (ConnectivityManager) context .getSystemService(Context.CONNECTIVITY_SERVICE); NetworkInfo mNetworkInfo = mConnectivityManager .getActiveNetworkInfo(); if (mNetworkInfo != null) { return mNetworkInfo.isAvailable(); } } return false; }  public static String getIMEI(Context context) { return ((TelephonyManager) context .getSystemService(Context.TELEPHONY_SERVICE)).getDeviceId(); }  // 通知栏高度 public static int getStatusBarHeight(Context context) { Class<?> c = null; Object obj = null; Field field = null; int x = 0, statusBarHeight = 0; try { c = Class.forName("com.android.internal.R$dimen"); obj = c.newInstance(); field = c.getField("status_bar_height"); x = Integer.parseInt(field.get(obj).toString()); statusBarHeight = context.getResources().getDimensionPixelSize(x); } catch (Exception e1) { e1.printStackTrace();  }  return statusBarHeight;  }  public static int getVersionCode(Context context) { // 获取packagemanager的实例 PackageManager packageManager = context.getPackageManager(); // getPackageName()是你当前类的包名，0代表是获取版本信息 int version = 0; try { PackageInfo packInfo = packageManager.getPackageInfo( context.getPackageName(), 0);  version = packInfo.versionCode; } catch (NameNotFoundException e) { e.printStackTrace(); } return version; }  /**  * 获取系统的版本号  *   * @return  */ public static int getAndroidSDKVersion() { int version = android.os.Build.VERSION.SDK_INT; return version; }  /**  * 判断是否为平板  *   * @return  */ public static boolean isPad(Context context) {  boolean isPad = false; if (android.os.Build.VERSION.SDK_INT >= 11) { // honeycomb // test screen size, use reflection because isLayoutSizeAtLeast is // only available since 11 Configuration con = context.getResources().getConfiguration(); try { Method mIsLayoutSizeAtLeast = con.getClass().getMethod( "isLayoutSizeAtLeast", int.class); isPad = (Boolean) mIsLayoutSizeAtLeast.invoke(con, 0x00000004); // Configuration.SCREENLAYOUT_SIZE_XLARGE } catch (Exception e) { e.printStackTrace(); isPad = false; } } return isPad; } }
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