webview 全屏横屏播放视频

参考了这两位大神的博客：

android Webview播放视频全屏问题
webview播放视频并且点击全屏横屏的方法

两个博客的总结：

xml需要写两个FrameLayout
第一个：放置视频到FrameLayout。（fl_full_video）
第二个：webview的父布局。（fl_webview）

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent">

    <FrameLayout
        android:id="@+id/fl_webview"
        android:layout_width="match_parent"
        android:layout_height="match_parent">

        <WebView
            android:id="@+id/web_playback_live"
            android:layout_width="match_parent"
            android:layout_height="match_parent"/>

    </FrameLayout>

    <FrameLayout
        android:id="@+id/fl_full_video"
        android:layout_width="match_parent"
        android:layout_height="match_parent"/>

    <RelativeLayout
        android:id="@+id/back_playback_live"
        android:layout_width="@dimen/dp_100"
        android:layout_height="@dimen/dp_40"/>

    <RelativeLayout
        android:id="@+id/share_live"
        android:layout_width="@dimen/dp_100"
        android:layout_height="@dimen/dp_40"
        android:layout_alignParentRight="true"/>
        
	<include layout="@layout/avi_layout" />

</RelativeLayout>

代码：

            webPlaybackDetails.setWebChromeClient(new WebChromeClient() {

                private View myView = null;

                //监听加载进度
                @Override
                public void onProgressChanged(WebView view, int newProgress) {
                    super.onProgressChanged(view, newProgress);
                    if (newProgress < 100) {
                        avi.show();
                    } else {
                        avi.hide();
                    }
                }
			
			// 全屏
                @Override
                public void onShowCustomView(View view, CustomViewCallback callback) {
                    super.onShowCustomView(view, callback);
                    ViewGroup parent = (ViewGroup) webPlaybackDetails.getParent();
                    parent.removeView(webPlaybackDetails);
                    fl_full_video.addView(view);
                    fl_full_video.setVisibility(View.VISIBLE);
                    myView = view;
                    setFullScreen();
                }

			// 退出全屏
                @Override
                public void onHideCustomView() {
                    super.onHideCustomView();
                    if (myView != null) {
                        fl_full_video.removeAllViews();
                        fl_webview.addView(webPlaybackDetails);
                        fl_full_video.setVisibility(View.GONE);

                        myView = null;
                        quitFullScreen();
                    }
                }

            });

    /**
     * 设置全屏
     */
    @SuppressLint("SourceLockedOrientationActivity")
    private void setFullScreen() {
        // 设置全屏的相关属性，获取当前的屏幕状态，然后设置全屏
        this.getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,
                WindowManager.LayoutParams.FLAG_FULLSCREEN);
        if(getRequestedOrientation()!=ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE){
            setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE);
        }
    }

    /**
     * 退出全屏
     */
    @SuppressLint("SourceLockedOrientationActivity")
    private void quitFullScreen() {
        // 声明当前屏幕状态的参数并获取
        final WindowManager.LayoutParams attrs = this.getWindow().getAttributes();
        attrs.flags &= (~WindowManager.LayoutParams.FLAG_FULLSCREEN);
        this.getWindow().setAttributes(attrs);
        this.getWindow().clearFlags(WindowManager.LayoutParams.FLAG_LAYOUT_NO_LIMITS);
        if(getRequestedOrientation()!=ActivityInfo.SCREEN_ORIENTATION_PORTRAIT){
            setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_PORTRAIT);
        }
    }

清单文件对应 Activity 的配置：

android:hardwareAccelerated="true"
android:configChanges="orientation|keyboardHidden|screenSize"

最后销毁webview：

    @Override
    protected void onDestroy() {
        super.onDestroy();
        webPlaybackDetails.destroy();
    }

题外话：webview逐级返回

    /**
     * 调用系统返回键 逐级返回
     *
     * @param keyCode
     * @param event
     * @return
     */
    @Override
    public boolean onKeyDown(int keyCode, KeyEvent event) {
        if (keyCode == KeyEvent.KEYCODE_BACK) {
            if (webPlaybackDetails.canGoBack()) {
                webPlaybackDetails.goBack();// 返回前一个页面
            } else {
                finish();
            }
        }
        return false;
    }

本文地址：https://blog.csdn.net/a506656675/article/details/110552706