安卓工具类------>获得屏幕相关的辅助类

来源：互联网发布：微信支付接口文档java 编辑：程序博客网时间：2024/05/21 06:34
import android.app.Activity;import android.content.Context;import android.graphics.Bitmap;import android.graphics.Rect;import android.util.DisplayMetrics;import android.view.View;import android.view.WindowManager;//获得屏幕相关的辅助类public class ScreenUtils{private ScreenUtils(){/* cannot be instantiated */throw new UnsupportedOperationException("cannot be instantiated");}/** * 获得屏幕高度 *  * @param context * @return */public static int getScreenWidth(Context context){WindowManager wm = (WindowManager) context.getSystemService(Context.WINDOW_SERVICE);DisplayMetrics outMetrics = new DisplayMetrics();wm.getDefaultDisplay().getMetrics(outMetrics);return outMetrics.widthPixels;}/** * 获得屏幕宽度 *  * @param context * @return */public static int getScreenHeight(Context context){WindowManager wm = (WindowManager) context.getSystemService(Context.WINDOW_SERVICE);DisplayMetrics outMetrics = new DisplayMetrics();wm.getDefaultDisplay().getMetrics(outMetrics);return outMetrics.heightPixels;}/** * 获得状态栏的高度 *  * @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;}/** * 获取当前屏幕截图，包含状态栏 *  * @param activity * @return */public static Bitmap snapShotWithStatusBar(Activity activity){View view = activity.getWindow().getDecorView();view.setDrawingCacheEnabled(true);view.buildDrawingCache();Bitmap bmp = view.getDrawingCache();int width = getScreenWidth(activity);int height = getScreenHeight(activity);Bitmap bp = null;bp = Bitmap.createBitmap(bmp, 0, 0, width, height);view.destroyDrawingCache();return bp;}/** * 获取当前屏幕截图，不包含状态栏 *  * @param activity * @return */public static Bitmap snapShotWithoutStatusBar(Activity activity){View view = activity.getWindow().getDecorView();view.setDrawingCacheEnabled(true);view.buildDrawingCache();Bitmap bmp = view.getDrawingCache();Rect frame = new Rect();activity.getWindow().getDecorView().getWindowVisibleDisplayFrame(frame);int statusBarHeight = frame.top;int width = getScreenWidth(activity);int height = getScreenHeight(activity);Bitmap bp = null;bp = Bitmap.createBitmap(bmp, 0, statusBarHeight, width, height- statusBarHeight);view.destroyDrawingCache();return bp;}}
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