开篇:市面上智能机基本上已经全面铺开全面屏手势操作,但是作为一名App应用开发者,当然还是需要适配经典导航键的布局,然而,开发过程中经常会发现,写好的布局打开经典导航后底部会被导航键给遮挡住,操作难度增加,经常会误触,现搬运解决方法
出自:android内容被底部虚拟导航栏遮挡解决 | APP开发技术博客
正文:如下代码可放置于一个util类中
public static boolean hasNavigationBarShow(Activity activity) { if (Build.VERSION.SDK_INT < Build.VERSION_CODES.JELLY_BEAN_MR1) { return false; } WindowManager wm = (WindowManager) activity.getSystemService(Context.WINDOW_SERVICE); Display display = wm.getDefaultDisplay(); DisplayMetrics outMetrics = new DisplayMetrics(); //获取整个屏幕的高度 display.getRealMetrics(outMetrics); int heightPixels = outMetrics.heightPixels; int widthPixels = outMetrics.widthPixels; //获取内容展示部分的高度 outMetrics = new DisplayMetrics(); display.getMetrics(outMetrics); int heightPixelsContent = outMetrics.heightPixels; int widthPixelsContent = outMetrics.widthPixels; int h = heightPixels - heightPixelsContent; int w = widthPixels - widthPixelsContent; return w > 0 || h > 0; //竖屏和横屏两种情况}/** * 获取导航栏高度 * * @param context * @return */public static int getNavigationBarHeight(Context context) { return getSystemComponentDimen(context, "navigation_bar_height");}public static int getSystemComponentDimen(Context context, String dimenName) { // 反射手机运行的类:android.R.dimen.status_bar_height. int statusHeight = -1; try { Class<?> clazz = Class.forName("com.android.internal.R$dimen"); Object object = clazz.newInstance(); String heightStr = clazz.getField(dimenName).get(object).toString(); int height = Integer.parseInt(heightStr); //dp->px statusHeight = context.getResources().getDimensionPixelSize(height); } catch (Exception e) { e.printStackTrace(); } return statusHeight;}
全局应用的话需要在BaseActivity的onCreate方法中引用如下代码
//底部虚拟导航栏适配 if (StatusBarUtil.hasNavigationBarShow(this)) { getWindow().getDecorView().findViewById(android.R.id.content).setPadding(0, 0, 0, StatusBarUtil.getNavigationBarHeight(this)); }
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