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首先,Android 自带的WebView控件是不支持flash播放的,在Android4.0以上的版本中,所以需要客户端安装adobe flashplayer播放器插件,这样就可以利用WebView来播放flash视频。
具体的方法,还是直接上代码:
private FrameLayout mFullscreenContainer;
private FrameLayout mContentView;
private View mCustomView = null;
private WebView mWebView;
private String url = "";
private LinearLayout vLoading;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.webview_layout);
initViews();
// 检测本机是否安装了flash播放器
if (ToolUtil.checkAPP(getApplicationContext(), "com.adobe.flashplayer")) {
initWebView();
mHandler.sendEmptyMessageDelayed(011, 1000);
} else {
ToolUtil.MsgBox(VideoWebActivity.this, "提示", "请安装flashplayer播放器。",
"确认", "取消", new OKCallback() {
@Override
public void exec() {
try {
Intent intent = new Intent(Intent.ACTION_VIEW);
// intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
// 安装文件apk路径
String fileName = Environment
.getExternalStorageDirectory()
+ "/myapk/AdobeFlashPlayer.apk";
// 创建URI
Uri uri = Uri.fromFile(new File(fileName));
intent.setDataAndType(uri,
"application/vnd.android.package-archive");
VideoWebActivity.this.startActivityForResult(
intent, 11);
} catch (Exception e) {
Log.e("VideoWebActivity", e.toString());
}
}
}, new CancelCallback() {
@Override
public void cancel() {
}
});
}
if (getPhoneAndroidSDK() >= 14) {// 4.0 需打开硬件加速
getWindow().setFlags(0x1000000, 0x1000000);
}
}
private void initViews() {
mFullscreenContainer = (FrameLayout) findViewById(R.id.fullscreen_custom_content);
mContentView = (FrameLayout) findViewById(R.id.main_content);
mWebView = (WebView) findViewById(R.id.webview_player);
vLoading = (LinearLayout) findViewById(R.id.loading);
vLoading.setVisibility(View.VISIBLE);
url = getIntent().getStringExtra("Url");
Log.e("Play URL --", "---" + url + "-----");
}
Handler mHandler = new Handler() {
@Override
public void handleMessage(Message msg) {
super.handleMessage(msg);
if (mWebView != null) {
mWebView.loadUrl(url);
Log.e("Play URL --", "---loadData-----");
}
}
};
private void initWebView() {
WebSettings settings = mWebView.getSettings();
settings.setJavaScriptEnabled(true);
settings.setJavaScriptCanOpenWindowsAutomatically(true);
settings.setPluginState(PluginState.ON);
settings.setAllowFileAccess(true);
settings.setLoadWithOverviewMode(true);
settings.setDomStorageEnabled(true);// 设置DOM元素保存
settings.setAppCacheEnabled(true);
settings.setDefaultTextEncodingName("UTF-8");
settings.setUseWideViewPort(true);// 设置任意缩放
mWebView.setBackgroundColor(0);
mWebView.setVisibility(View.VISIBLE);
mWebView.setWebChromeClient(new MyWebChromeClient());
mWebView.setWebViewClient(new MyWebViewClient());
}
class MyWebChromeClient extends WebChromeClient {
private CustomViewCallback mCustomViewCallback;
private int mOriginalOrientation = 1;
@Override
public void onShowCustomView(View view, CustomViewCallback callback) {
onShowCustomView(view, mOriginalOrientation, callback);
super.onShowCustomView(view, callback);
}
@SuppressLint("Override")
public void onShowCustomView(View view, int requestedOrientation,
WebChromeClient.CustomViewCallback callback) {
if (mCustomView != null) {
callback.onCustomViewHidden();
return;
}
if (getPhoneAndroidSDK() >= 14) {
mFullscreenContainer.addView(view);
mCustomView = view;
mCustomViewCallback = callback;
mOriginalOrientation = getRequestedOrientation();
mContentView.setVisibility(View.INVISIBLE);
mFullscreenContainer.setVisibility(View.VISIBLE);
mFullscreenContainer.bringToFront();
setRequestedOrientation(mOriginalOrientation);
}
}
public void onHideCustomView() {
mContentView.setVisibility(View.VISIBLE);
if (mCustomView == null) {
return;
}
mCustomView.setVisibility(View.GONE);
mFullscreenContainer.removeView(mCustomView);
mCustomView = null;
mFullscreenContainer.setVisibility(View.GONE);
try {
mCustomViewCallback.onCustomViewHidden();
} catch (Exception e) {
}
setRequestedOrientation(mOriginalOrientation);
}
}
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
initWebView();
mHandler.removeMessages(011);
mHandler.sendEmptyMessageDelayed(011, 1000);
}
class MyWebViewClient extends WebViewClient {
@Override
public boolean shouldOverrideUrlLoading(WebView view, String url) {
view.loadUrl(url);
return super.shouldOverrideUrlLoading(view, url);
}
// 加载完成
@Override
public void onPageFinished(WebView view, String url) {
super.onPageFinished(view, url);
vLoading.setVisibility(View.GONE);
}
// 开始加载
@Override
public void onPageStarted(WebView view, String url, Bitmap favicon) {
super.onPageStarted(view, url, favicon);
}
@Override
public void onReceivedError(WebView view, int errorCode,
String description, String failingUrl) {
super.onReceivedError(view, errorCode, description, failingUrl);
Log.e("VideoWebActivity", "errorCode:-----" + errorCode + " "
+ description);
}
}
public static int getPhoneAndroidSDK() {
int version = 0;
try {
version = Integer.valueOf(android.os.Build.VERSION.SDK);
} catch (NumberFormatException e) {
e.printStackTrace();
}
return version;
}
@Override
public void onPause() {// 继承自Activity
super.onPause();
if (mWebView != null) {
mWebView.onPause();
}
}
@Override
public void onResume() {// 继承自Activity
super.onResume();
if (mWebView != null) {
mWebView.onResume();
}
}
@Override
protected void onDestroy() {
if (mWebView != null) {
try {
mWebView.clearView();
mWebView.clearCache(true);
mWebView.destroy();
mWebView = null;
} catch (Exception e) {
System.out.println("后台no kills");
}
Log.e("ada", "-----------destroy---------");
}
super.onDestroy();
}
@Override
public void onBackPressed() {
finish();
super.onBackPressed();
}
@Override
public boolean dispatchKeyEvent(KeyEvent event) {
if (event.getKeyCode() == KeyEvent.KEYCODE_BACK
&& event.getAction() == KeyEvent.ACTION_DOWN) {
mWebView.loadData("", "text/html; charset=UTF-8", null);
finish();
}
return super.dispatchKeyEvent(event);
}
ANDROID应用开发的时候可能会用到WEBVIEW这个组件,使用过程中可能会接触到WEBVIEWCLIENT与WEBCHROMECLIENT,那么这两个类到底有什么不同呢?
WebViewClient主要帮助WebView处理各种通知、请求事件的,比如:
onLoadResource
onPageStart
onPageFinish
onReceiveError
onReceivedHttpAuthRequest
WebChromeClient主要辅助WebView处理Javascript的对话框、网站图标、网站title、加载进度等比如
onCloseWindow(关闭WebView)
onCreateWindow()
onJsAlert (WebView上alert无效,需要定制WebChromeClient处理弹出)
onJsPrompt
onJsConfirm
onProgressChanged
onReceivedIcon
onReceivedTitle
看上去他们有很多不同,实际使用的话,如果你的WebView只是用来处理一些html的页面内容,只用WebViewClient就行了,如果需要更丰富的处理效果,比如JS、进度条等,就要用到WebChromeClient。
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