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:
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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