Android上白鹭软键盘挡住输入框解决方案 墨蓝 2022-04-24 19:16 249阅读 0赞 最近在进行白鹭游戏的开发,发现了Android上的一个坑:就是在游戏界面内,输入框会被弹出来的软键盘挡住而不会上移。经过查阅资料,通过如下方式可以解决: * Android原生部分代码: public class AndroidBug5497Workaround { // For more information, see https://code.google.com/p/android/issues/detail?id=5497 // To use this class, simply invoke assistActivity() on an Activity that already has its content view set. public static void assistActivity (Activity activity) { new AndroidBug5497Workaround(activity); } private View mChildOfContent; private int usableHeightPrevious; private FrameLayout.LayoutParams frameLayoutParams; private AndroidBug5497Workaround(Activity activity) { FrameLayout content = (FrameLayout) activity.findViewById(android.R.id.content); mChildOfContent = content.getChildAt(0); mChildOfContent.getViewTreeObserver().addOnGlobalLayoutListener(new ViewTreeObserver.OnGlobalLayoutListener() { public void onGlobalLayout() { possiblyResizeChildOfContent(); } }); frameLayoutParams = (FrameLayout.LayoutParams) mChildOfContent.getLayoutParams(); } private void possiblyResizeChildOfContent() { int usableHeightNow = computeUsableHeight(); if (usableHeightNow != usableHeightPrevious) { int usableHeightSansKeyboard = mChildOfContent.getRootView().getHeight(); int heightDifference = usableHeightSansKeyboard - usableHeightNow; if (heightDifference > (usableHeightSansKeyboard/4)) { // keyboard probably just became visible frameLayoutParams.height = usableHeightSansKeyboard - heightDifference; } else { // keyboard probably just became hidden frameLayoutParams.height = usableHeightSansKeyboard; } mChildOfContent.requestLayout(); usableHeightPrevious = usableHeightNow; } } private int computeUsableHeight() { Rect r = new Rect(); mChildOfContent.getWindowVisibleDisplayFrame(r); return (r.bottom - r.top);// 全屏模式下: return r.bottom } } 在相应的activity的oncreate函数中执行,放在setContentView后面: AndroidBug5497Workaround.assistActivity(this); * H5部分代码: if (/Android/gi.test(navigator.userAgent)) { // 检测userAgent是否为Android window.addEventListener('resize', function () { if (document.activeElement.tagName == 'INPUT' || document.activeElement.tagName == 'TEXTAREA') { // 判断当前active的元素是否为input/ textarea window.setTimeout(function () { document.activeElement.scrollIntoViewIfNeeded() // 原生方法,滚动至需要显示的位置 }, 0) } }) } 这段代码放在game.html的js部分代码中即可。(game.html是本地加载的首页代码) 在这里特意做一个记录,以备查阅。 > [https://www.diycode.cc/topics/383][https_www.diycode.cc_topics_383] > [https://www.jianshu.com/p/baa539ae97b6][https_www.jianshu.com_p_baa539ae97b6] [https_www.diycode.cc_topics_383]: https://www.diycode.cc/topics/383 [https_www.jianshu.com_p_baa539ae97b6]: https://www.jianshu.com/p/baa539ae97b6
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