介绍
最近项目开发中用到了WebView播放视频的功能，总结了开发中犯过的错误，这些错误在开发是及容易遇到的，所以我这里总结了一下，希望大家看到后不要再犯类似的错误，尽可能提高开发效率：
这个Demo我这里也参考了网上写的一个比较好的一个Demo，经过总结修改，写出来的。
主要代码
以下是相应代码：
MainActivity：
package com.androidwebviewdemo;
import android.app.Activity;
import android.app.ProgressDialog;
import android.content.pm.ActivityInfo;
import android.os.Bundle;
import android.util.Log;
import android.view.KeyEvent;
import android.view.LayoutInflater;
import android.view.View;
import android.view.Window;
import android.view.WindowManager;
import android.webkit.WebChromeClient;
import android.webkit.WebChromeClient.CustomViewCallback;
import android.webkit.WebSettings;
import android.webkit.WebView;
import android.webkit.WebViewClient;
import android.widget.FrameLayout;
public class MainActivity extends Activity {
private WebView webView;
private FrameLayout video_fullView;// 全屏时视频加载view
private View xCustomView;
private ProgressDialog waitdialog = null;
private CustomViewCallback xCustomViewCallback;
private myWebChromeClient xwebchromeclient;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
requestWindowFeature(Window.FEATURE_NO_TITLE);// 去掉应用
getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,
WindowManager.LayoutParams.FLAG_FULLSCREEN);
setContentView(R.layout.activity_main);
waitdialog = new ProgressDialog(this);
waitdialog.setTitle("提示");
waitdialog.setMessage("视频页面加载中...");
waitdialog.setIndeterminate(true);
waitdialog.setCancelable(true);
waitdialog.show();
webView = (WebView) findViewById(R.id.webView);
video_fullView = (FrameLayout) findViewById(R.id.video_fullView);
WebSettings ws = webView.getSettings();
ws.setBuiltInZoomControls(true);// 隐藏缩放按钮
// ws.setLayoutAlgorithm(WebSettings.LayoutAlgorithm.NORMAL);// 排版适应屏幕
ws.setUseWideViewPort(true);// 可任意比例缩放
ws.setLoadWithOverviewMode(true);// setUseWideViewPort方法设置webview推荐使用的窗口。setLoadWithOverviewMode方法是设置webview加载的页面的模式。
ws.setSavePassword(true);
ws.setSaveFormData(true);// 保存表单数据
ws.setJavaScriptEnabled(true);
ws.setGeolocationEnabled(true);// 启用地理定位
ws.setGeolocationDatabasePath("/data/data/org.itri.html5webview/databases/");// 设置定位的数据库路径
ws.setDomStorageEnabled(true);
ws.setSupportMultipleWindows(true);// 新加
xwebchromeclient = new myWebChromeClient();
webView.setWebChromeClient(xwebchromeclient);
webView.setWebViewClient(new myWebViewClient());
webView.loadUrl("http://look.appjx.cn/mobile_api.php?mod=news&id=12604");
}
public class myWebViewClient extends WebViewClient {
@Override
public boolean shouldOverrideUrlLoading(WebView view, String url) {
view.loadUrl(url);
return false;
}
@Override
public void onPageFinished(WebView view, String url) {
super.onPageFinished(view, url);
waitdialog.dismiss();
}
}
public class myWebChromeClient extends WebChromeClient {
private View xprogressvideo;
// 播放网络视频时全屏会被调用的方法
@Override
public void onShowCustomView(View view, CustomViewCallback callback) {
setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE);
webView.setVisibility(View.INVISIBLE);
// 如果一个视图已经存在，那么立刻终止并新建一个
if (xCustomView != null) {
callback.onCustomViewHidden();
return;
}
video_fullView.addView(view);
xCustomView = view;
xCustomViewCallback = callback;
video_fullView.setVisibility(View.VISIBLE);
}
// 视频播放退出全屏会被调用的
@Override
public void onHideCustomView() {
if (xCustomView == null)// 不是全屏播放状态
return;
setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_PORTRAIT);
xCustomView.setVisibility(View.GONE);
video_fullView.removeView(xCustomView);
xCustomView = null;
video_fullView.setVisibility(View.GONE);
xCustomViewCallback.onCustomViewHidden();
webView.setVisibility(View.VISIBLE);
}
// 视频加载时进程loading
@Override
public View getVideoLoadingProgressView() {
if (xprogressvideo == null) {
LayoutInflater inflater = LayoutInflater
.from(MainActivity.this);
xprogressvideo = inflater.inflate(
R.layout.video_loading_progress, null);
}
return xprogressvideo;
}
}
public boolean inCustomView() {
return (xCustomView != null);
}
public void hideCustomView() {
xwebchromeclient.onHideCustomView();
setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_PORTRAIT);
}
@Override
protected void onResume() {
super.onResume();
super.onResume();
webView.onResume();
webView.resumeTimers();
if (getRequestedOrientation() != ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE) {
setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_PORTRAIT);
}
}
@Override
protected void onPause() {
super.onPause();
webView.onPause();
webView.pauseTimers();
}
@Override
protected void onDestroy() {
super.onDestroy();
super.onDestroy();
video_fullView.removeAllViews();
webView.loadUrl("about:blank");
webView.stopLoading();
webView.setWebChromeClient(null);
webView.setWebViewClient(null);
webView.destroy();
webView = null;
}
@Override
public boolean onKeyDown(int keyCode, KeyEvent event) {
if (keyCode == KeyEvent.KEYCODE_BACK) {
if (inCustomView()) {
// webViewDetails.loadUrl("about:blank");
hideCustomView();
return true;
} else {
webView.loadUrl("about:blank");
MainActivity.this.finish();
}
}
return false;
}
}activity_main.xml：
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical" >
<FrameLayout
android:id="@+id/video_fullView"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:visibility="gone" >
</FrameLayout>
<WebView
android:id="@+id/webView"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="20sp" />
</LinearLayout>video_loading_progress.xml：
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/progress_indicator"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerInParent="true"
android:orientation="vertical" >
<ProgressBar
android:id="@android:id/progress"
style="?android:attr/progressBarStyleLarge"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:paddingTop="5dip"
android:text="正在玩命加载视频中。。。"
android:textColor="?android:attr/textColorPrimary"
android:textSize="14sp" />
</LinearLayout>AndroidManifest.xml：
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.androidwebviewdemo"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk
android:minSdkVersion="8"
android:targetSdkVersion="17" />
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
<uses-permission android:name="android.permission.ACCESS_MOCK_LOCATION" />
<uses-permission android:name="android.permission.ACCESS_GPS" />
<uses-permission android:name="android.permission.ACCESS_ASSISTED_GPS" />
<uses-permission android:name="android.permission.ACCESS_LOCATION" />
<uses-permission android:name="android.permission.READ_PHONE_STATE"/>
<application
android:allowBackup="true"
android:hardwareAccelerated="true"
android:icon="@drawable/ic_launcher"
android:label="@string/app_name"
android:theme="@style/AppTheme" >
<!-- android:configChanges="orientation|keyboardHidden" -->
<!-- 默认竖屏，点击全屏后再横屏，
那么activity必须配置android:configChanges="orientation|screenSize"
这样一来，旋转屏幕，只会调用onConfigurationChanged，不会创建新activity。
不然的话，代码中设置横屏的时候，都会新建一个Activity，
那样就没办法实现点击就横屏全屏了。 -->
<activity
android:name="com.androidwebviewdemo.MainActivity"
android:configChanges="orientation|screenSize"
android:label="@string/app_name" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
</manifest>以上就是Android WebView实现全屏播放视频的详细内容，更多关于Android WebView播放视频的资料请关注编程网其它相关文章！
