android 显示内容被底部导航栏遮挡 解决android 显示内容被底部导航栏遮挡的问题
滕玉坤 人气:1描述:
由于产品需求,要求含有EditText的界面全屏显示,最好的解决方式是使用AndroidBug5497Workaround.assistActivity(this)
的方式来解决,但是华为和魅族手机系统自带的有底部导航栏,会造成一些布局被遮挡。
解决方案:在values-21的style.xml中添加android:windowDrawsSystemBarBackgrounds”并将值设置为false,方式如下
在style引用的主题里面加入android:windowDrawsSystemBarBackgrounds”并将值设置为false,会自动提醒点击alt+Enter会新建values-21的文件夹并生成styles.xml的文件。
也可以自己忽略的,直接新建values-21的文件夹然后新建一个styles.xml的文件,将主题里面的内容复制到styles.xml里面然后加上加入android:windowDrawsSystemBarBackgrounds”并将值设置为false即可解决。
例外:附上(网上找到的)
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 Activity activity; private View mChildOfContent; private int usableHeightPrevious; private FrameLayout.LayoutParams frameLayoutParams; private AndroidBug5497Workaround(Activity activity) { this.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(); LogUtils.e("possiblyResizeChildOfContent","usableHeightNow:"+usableHeightNow); LogUtils.e("possiblyResizeChildOfContent","usableHeightPrevious:"+usableHeightPrevious); if (usableHeightNow != usableHeightPrevious) { int usableHeightSansKeyboard = mChildOfContent.getRootView().getHeight(); //这个判断是为了解决19之前的版本不支持沉浸式状态栏导致布局显示不完全的问题 if(Build.VERSION.SDK_INT < Build.VERSION_CODES.KITKAT){ Rect frame = new Rect(); activity.getWindow().getDecorView().getWindowVisibleDisplayFrame(frame); int statusBarHeight = frame.top; usableHeightSansKeyboard -= statusBarHeight; } 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 frame = new Rect(); activity.getWindow().getDecorView().getWindowVisibleDisplayFrame(frame); int statusBarHeight = frame.top; Rect r = new Rect(); mChildOfContent.getWindowVisibleDisplayFrame(r); //这个判断是为了解决19之后的版本在弹出软键盘时,键盘和推上去的布局(adjustResize)之间有黑色区域 的问题 if(Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT){ return (r.bottom - r.top)+statusBarHeight; } return (r.bottom - r.top); } }
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