Android虚拟按键栏处理方案

最近在公司的项目中 , 华为用户反馈出了一个问题 , 华为手机底部有虚拟按键栏把应用的底部内容遮挡住了 , 现在已经把这个问题解决了 , 记录一下,给各位遇到相同问题的童鞋做一下参考.

处理虚拟按键栏工具类:

public class ScreenUtils {    //获取虚拟按键的高度    public static int getNavigationBarHeight(Context context) {        int result = 0;        if (hasNavBar(context)) {            Resources res = context.getResources();            int resourceId = res.getIdentifier("navigation_bar_height", "dimen", "android");            if (resourceId > 0) {                result = res.getDimensionPixelSize(resourceId);            }        }        return result;    }    /**     * 检查是否存在虚拟按键栏     *     * @param context     * @return     */    @TargetApi(Build.VERSION_CODES.ICE_CREAM_SANDWICH)    public static boolean hasNavBar(Context context) {        Resources res = context.getResources();//读取系统资源函数        int resourceId = res.getIdentifier("config_showNavigationBar", "bool", "android");//获取资源id        if (resourceId != 0) {            boolean hasNav = res.getBoolean(resourceId);            // check override flag            String sNavBarOverride = getNavBarOverride();            if ("1".equals(sNavBarOverride)) {                hasNav = false;            } else if ("0".equals(sNavBarOverride)) {                hasNav = true;            }            return hasNav;        } else { // fallback            return !ViewConfiguration.get(context).hasPermanentMenuKey();        }    }    /**     * 判断虚拟按键栏是否重写     * @return     */    private static String getNavBarOverride() {        String sNavBarOverride = null;        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) {            try {                Class c = Class.forName("android.os.SystemProperties");                Method m = c.getDeclaredMethod("get", String.class);                m.setAccessible(true);                sNavBarOverride = (String) m.invoke(null, "qemu.hw.mainkeys");            } catch (Throwable e) {            }        }        return sNavBarOverride;    }}

调用工具类方法 , 获取虚拟按键高度:

//处理虚拟按键//判断用户手机机型是否有虚拟按键栏                  if(ScreenUtils.hasNavBar(getApplicationContext())){        setNavigationBar();    }    //处理虚拟按键    private void setNavigationBar() {        int barHeight = ScreenUtils.getNavigationBarHeight(getApplicationContext());        LinearLayout.LayoutParams barParams = new LinearLayout.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT,ViewGroup.LayoutParams.WRAP_CONTENT);        TextView tv = new TextView(this);        tv.setHeight(barHeight);        tv.setWidth(ViewGroup.LayoutParams.MATCH_PARENT);        tv.setBackgroundColor(Color.BLACK);        llNavigationBar.addView(tv,barParams);    }