在谷歌Chrome和Play商店。应用程序可以隐藏动作条,而滚动,并允许用户方便地浏览。请帮我做的这个样子。
我用onTouchListener对的WebView它不工作。
mWebView.setOnTouchListener(new View.OnTouchListener() {
@Override
public boolean onTouch(View v, MotionEvent event) {
switch (event.getAction()) {
case MotionEvent.ACTION_DOWN:
getSupportActionBar().show();
break;
case MotionEvent.ACTION_UP:
getSupportActionBar().hide();
break;
default: break;
}
return false;
}
});
提前致谢
为此,您可以在不使用设计库qazxsw POI和POI qazxsw任何Java代码,对CoordinatorLayout
qazxsw POI集。这里是你如何做到这一点。
NestedScrollView
一旦你得到了它的窍门,你可以玩与不同layout_scrollFlags和fitsSystemWindows行为。
嗯,我已经通过app:layout_scrollFlags
和Toolbar
实现:
custom Web view.Java:
<android.support.design.widget.CoordinatorLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height="match_parent">
<android.support.design.widget.AppBarLayout
android:id="@+id/appbar"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar">
<android.support.v7.widget.Toolbar
android:id="@+id/toolbar"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
android:background="?attr/colorPrimary"
app:layout_scrollFlags="scroll|enterAlways"
app:popupTheme="@style/ThemeOverlay.AppCompat.Light" />
</android.support.design.widget.AppBarLayout>
<android.support.v4.widget.NestedScrollView xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_gravity="fill_vertical"
app:layout_behavior="@string/appbar_scrolling_view_behavior">
<WebView
android:id="@+id/webview"
android:layout_width="match_parent"
android:layout_height="match_parent"/>
</android.support.v4.widget.NestedScrollView>
</android.support.design.widget.CoordinatorLayout>
web_fragment.xml:
CustomWebView
手势检测(我在片段加入)自定义GestureDetector类:
GestureDetector
Web fragment.Java:
public class CustomWebView extends WebView {
private GestureDetector gestureDetector;
public CustomWebView(Context context) {
super(context);
}
public CustomWebView(Context context, AttributeSet attrs) {
super(context, attrs);
}
public CustomWebView(Context context, AttributeSet attrs, int defStyle) {
super(context, attrs, defStyle);
}
@Override
protected void onScrollChanged(int l, int t, int oldl, int oldt) {
super.onScrollChanged(l, t, oldl, oldt);
}
@Override
public boolean onTouchEvent(MotionEvent ev) {
return gestureDetector.onTouchEvent(ev) || super.onTouchEvent(ev);
}
public void setGestureDetector(GestureDetector gestureDetector) {
this.gestureDetector = gestureDetector;
}
}
它工作正常的我,希望它会帮助你。
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="@android:color/transparent"
android:orientation="vertical">
<com.customview.CustomWebView
android:id="@+id/customWebView"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:focusable="true" />
</LinearLayout>
private class CustomeGestureDetector extends GestureDetector.SimpleOnGestureListener {
@Override
public boolean onFling(MotionEvent e1, MotionEvent e2, float velocityX, float velocityY) {
if(e1 == null || e2 == null) return false;
if(e1.getPointerCount() > 1 || e2.getPointerCount() > 1) return false;
else {
try {
if(e1.getY() - e2.getY() > 20 ) {
// Hide Actionbar
getSupportActionBar().hide();
customWebView.invalidate();
return false;
}
else if (e2.getY() - e1.getY() > 20 ) {
// Show Actionbar
getSupportActionBar().show();
customWebView.invalidate();
return false;
}
} catch (Exception e) {
customWebView.invalidate();
}
return false;
}
}
}
的build.gradle依赖
private CustomWebView customWebView;
customWebView= (CustomWebView) view.findViewById(R.id.customWebView);
customWebView.setGestureDetector(new GestureDetector(new CustomeGestureDetector()));