android开发之工具类：获取手机设备的一些数据DeviceUtil

import android.app.Activity; import android.content.Context; import android.graphics.Bitmap; import android.graphics.Rect; import android.os.Build; import android.telephony.TelephonyManager; import android.util.DisplayMetrics; import android.view.View; import android.view.WindowManager; /** * Created by dandy on 2016/7/13. * * 获取手机设备等的一些数据 */ public class DeviceUtil { /** * 获取DisplayMetrics * @param context * @return */ private static DisplayMetrics obtain(Context context){ WindowManager wm = (WindowManager)context.getSystemService(Context.WINDOW_SERVICE); DisplayMetrics dm = new DisplayMetrics(); wm.getDefaultDisplay().getMetrics(dm); return dm; } /** * 获取屏幕宽度 * @param context * @return */ public static int getDeviceWidth(Context context){ DisplayMetrics outMetrics = obtain(context); return outMetrics.widthPixels; } /** * 获取屏幕高度 * @param context * @return */ public static int getDeviceHeight(Context context){ DisplayMetrics outMetrics = obtain(context); return outMetrics.heightPixels; } /** * 获取屏幕大小[0]宽，[1]高 * @param context * @return */ public static int[] getDeviceSize(Context context){ DisplayMetrics outMetrics = obtain(context); int [] sizes = new int[2]; sizes[0] = outMetrics.widthPixels; sizes[1] = outMetrics.heightPixels; return sizes; } /** * 获取设备屏幕密度dpi，每寸所包含的像素点 * @param context * @return */ public static float getDeviceDensityDpi(Context context){ return context.getResources().getDisplayMetrics().densityDpi; } /** * 获取设备屏幕密度,像素的比例 * @param context * @return */ public static float getDeviceDensity(Context context){ return context.getResources().getDisplayMetrics().density; } /** * 获取状态栏高度 * @param context * @return */ public static int getStatusHeight(Context context){ int statusHeight = -1; try { Class<?> clazz = Class.forName("com.android.internal.R$dimen"); Object object = clazz.newInstance(); int height = Integer.parseInt(clazz.getField("status_bar_height") .get(object).toString()); statusHeight = context.getResources().getDimensionPixelSize(height); } catch (Exception e) { e.printStackTrace(); } return statusHeight; } /** * 截取当前屏幕画面为bitmap图片 * @param activity * @param hasStatusBar 是否包含当前状态栏,true:包含 * @return */ public static Bitmap snapCurrentScreenShot(Activity activity,boolean hasStatusBar){ View decorView = activity.getWindow().getDecorView(); decorView.setDrawingCacheEnabled(true); decorView.buildDrawingCache(); Bitmap bmp = decorView.getDrawingCache(); int deviceSize[] = getDeviceSize(activity); int coordinateY = 0; int cutHeight = deviceSize[1]; if(!hasStatusBar){ Rect frame = new Rect(); decorView.getWindowVisibleDisplayFrame(frame); coordinateY += frame.top; cutHeight -= frame.top; } Bitmap shot = Bitmap.createBitmap(bmp,0,coordinateY,deviceSize[0],cutHeight); decorView.destroyDrawingCache(); return shot; } /** * 获取手机IMEI号 * add <uses-permission android:name="android.permission.READ_PHONE_STATE" /> in AndroidManifest.xml * @param context * @return */ public static String getDeviceIMEI(Context context){ TelephonyManager tm = (TelephonyManager)context.getSystemService(Context.TELEPHONY_SERVICE); return tm.getDeviceId(); } /** * 获取手机厂商 * @return */ public static String getDeviceManufacturer(){ return Build.MANUFACTURER; } /** * 获取手机型号 * @return */ public static String getDeviceModel(){ return Build.MODEL; } /** * 获取手机系统版本号 * @return */ public static String getDeviceSystemVersion(){ return Build.VERSION.RELEASE; } /** * 讲px值转变成dip * @param context * @param px * @return */ public static float pxToDip(Context context,float px){ return px / getDeviceDensity(context) + 0.5f; } /** * 将dip值转成px * @param context * @param dip * @return */ public static float dipToPx(Context context,float dip){ return dip * getDeviceDensity(context) + 0.5f; } /** * 将px值转成sp值 * @param context * @param px * @return */ public static float pxToSp(Context context,float px){ final float fontScale = context.getResources().getDisplayMetrics().scaledDensity; return px / fontScale + 0.5f; } /** * 将sp值转成px值 * @param context * @param sp * @return */ public static float spTpPx(Context context,float sp){ final float fontScale = context.getResources().getDisplayMetrics().scaledDensity; return sp * fontScale + 0.5f; } } 测试代码结果如下： 07-14 14:43:17.062 10053-10053/? D/MainActivity: testDeviceUtil: width = 1080 07-14 14:43:17.064 10053-10053/? D/MainActivity: testDeviceUtil: height = 1776 07-14 14:43:17.065 10053-10053/? D/MainActivity: testDeviceUtil: statusHeight = 75 07-14 14:43:17.065 10053-10053/? D/MainActivity: testDeviceUtil: model = Nexus 5 07-14 14:43:17.065 10053-10053/? D/MainActivity: testDeviceUtil: factory = LGE 07-14 14:43:17.065 10053-10053/? D/MainActivity: testDeviceUtil: densityDpi = 480.0 07-14 14:43:17.065 10053-10053/? D/MainActivity: testDeviceUtil: density = 3.0 07-14 14:43:17.065 10053-10053/? D/MainActivity: testDeviceUtil: version = 5.0.1 07-14 14:43:17.067 10053-10053/? D/MainActivity: testDeviceUtil: imei = 352584060187280原文地址http://blog.csdn.net/tabolt/article/details/51909247