解决android 显示内容被底部导航栏遮挡的问题
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)
publicclassAndroidBug5497Workaround{
//Formoreinformation,seehttps://code.google.com/p/android/issues/detail?id=5497
//Tousethisclass,simplyinvokeassistActivity()onanActivitythatalreadyhasitscontent
viewset.
publicstaticvoidassistActivity(Activityactivity){
newAndroidBug5497Workaround(activity);
}
privateActivityactivity;
privateViewmChildOfContent;
privateintusableHeightPrevious;
privateFrameLayout.LayoutParamsframeLayoutParams;
privateAndroidBug5497Workaround(Activityactivity){
this.activity=activity;
FrameLayoutcontent=(FrameLayout)activity.findViewById(android.R.id.content);
mChildOfContent=content.getChildAt(0);
mChildOfContent.getViewTreeObserver().addOnGlobalLayoutListener(new
ViewTreeObserver.OnGlobalLayoutListener(){
publicvoidonGlobalLayout(){
possiblyResizeChildOfContent();
}
});
frameLayoutParams=(FrameLayout.LayoutParams)mChildOfContent.getLayoutParams();
}
privatevoidpossiblyResizeChildOfContent(){
intusableHeightNow=computeUsableHeight();
LogUtils.e("possiblyResizeChildOfContent","usableHeightNow:"+usableHeightNow);
LogUtils.e("possiblyResizeChildOfContent","usableHeightPrevious:"+usableHeightPrevious);
if(usableHeightNow!=usableHeightPrevious){
intusableHeightSansKeyboard=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(usableHeightSansKeyboard/4)){
//keyboardprobablyjustbecamevisible
frameLayoutParams.height=usableHeightSansKeyboard-heightDifference;
}else{
//keyboardprobablyjustbecamehidden
frameLayoutParams.height=usableHeightSansKeyboard;
}
mChildOfContent.requestLayout();
usableHeightPrevious=usableHeightNow;
}
}
privateintcomputeUsableHeight(){
Rectframe=newRect();
activity.getWindow().getDecorView().getWindowVisibleDisplayFrame(frame);
intstatusBarHeight=frame.top;
Rectr=newRect();
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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