获得屏幕相关的辅助类：
1、获得屏幕高度；
2、获得屏幕宽度；
3、获得状态栏的高度；
4、获取当前屏幕截图，包含状态栏；
5、获取当前屏幕截图，不包含状态栏。
1 import android.app.Activity; 2 import android.content.Context; 3 import android.graphics.Bitmap; 4 import android.graphics.Rect; 5 import android.util.DisplayMetrics; 6 import android.view.View; 7 import android.view.WindowManager; 8 9 // 获得屏幕相关的辅助类 10 public class ScreenUtils 11 { 12 private ScreenUtils() 13 { 14 /* cannot be instantiated */ 15 throw new UnsupportedOperationException("cannot be instantiated"); 16 } 17 18 /** 19 * 获得屏幕高度 20 * 21 * @param context 22 * @return 23 */ 24 public static int getScreenWidth(Context context) 25 { 26 WindowManager wm = (WindowManager) context 27 .getSystemService(Context.WINDOW_SERVICE); 28 DisplayMetrics outMetrics = new DisplayMetrics(); 29 wm.getDefaultDisplay().getMetrics(outMetrics); 30 return outMetrics.widthPixels; 31 } 32 33 /** 34 * 获得屏幕宽度 35 * 36 * @param context 37 * @return 38 */ 39 public static int getScreenHeight(Context context) 40 { 41 WindowManager wm = (WindowManager) context 42 .getSystemService(Context.WINDOW_SERVICE); 43 DisplayMetrics outMetrics = new DisplayMetrics(); 44 wm.getDefaultDisplay().getMetrics(outMetrics); 45 return outMetrics.heightPixels; 46 } 47 48 /** 49 * 获得状态栏的高度 50 * 51 * @param context 52 * @return 53 */ 54 public static int getStatusHeight(Context context) 55 { 56 57 int statusHeight = -1; 58 try 59 { 60 Class<?> clazz = Class.forName("com.android.internal.R$dimen"); 61 Object object = clazz.newInstance(); 62 int height = Integer.parseInt(clazz.getField("status_bar_height") 63 .get(object).toString()); 64 statusHeight = context.getResources().getDimensionPixelSize(height); 65 } catch (Exception e) 66 { 67 e.printStackTrace(); 68 } 69 return statusHeight; 70 } 71 72 /** 73 * 获取当前屏幕截图，包含状态栏 74 * 75 * @param activity 76 * @return 77 */ 78 public static Bitmap snapShotWithStatusBar(Activity activity) 79 { 80 View view = activity.getWindow().getDecorView(); 81 view.setDrawingCacheEnabled(true); 82 view.buildDrawingCache(); 83 Bitmap bmp = view.getDrawingCache(); 84 int width = getScreenWidth(activity); 85 int height = getScreenHeight(activity); 86 Bitmap bp = null; 87 bp = Bitmap.createBitmap(bmp, 0, 0, width, height); 88 view.destroyDrawingCache(); 89 return bp; 90 91 } 92 93 /** 94 * 获取当前屏幕截图，不包含状态栏 95 * 96 * @param activity 97 * @return 98 */ 99 public static Bitmap snapShotWithoutStatusBar(Activity activity) 100 { 101 View view = activity.getWindow().getDecorView(); 102 view.setDrawingCacheEnabled(true); 103 view.buildDrawingCache(); 104 Bitmap bmp = view.getDrawingCache(); 105 Rect frame = new Rect(); 106 activity.getWindow().getDecorView().getWindowVisibleDisplayFrame(frame); 107 int statusBarHeight = frame.top; 108 109 int width = getScreenWidth(activity); 110 int height = getScreenHeight(activity); 111 Bitmap bp = null; 112 bp = Bitmap.createBitmap(bmp, 0, statusBarHeight, width, height 113 - statusBarHeight); 114 view.destroyDrawingCache(); 115 return bp; 116 117 } 118 }