WebChromeClient无法运行Android
我有一个进度条，一个全屏视频播放方法（用于全屏播放youtube视频），以及公共布尔值应该覆盖来处理WebView中的URL，但我无法让这三个方法一起工作，我尝试了以下三种方法，似乎我需要重复的webviewClient和WebChromeClient，以使依赖它们的一切工作正常 方法1-进度条不工作（卡在0%上） 方法2-全屏不工作WebChromeClient无法运行Android,android,webview,Android,Webview,我有一个进度条，一个全屏视频播放方法（用于全屏播放youtube视频），以及公共布尔值应该覆盖来处理WebView中的URL，但我无法让这三个方法一起工作，我尝试了以下三种方法，似乎我需要重复的webviewClient和WebChromeClient，以使依赖它们的一切工作正常 方法1-进度条不工作（卡在0%上） 方法2-全屏不工作 public class MainActivity extends Activity { private WebView mWebVie
public class MainActivity extends Activity {
private WebView mWebView;
private EditText urlEditText;
private ProgressBar progress;
// FULL-SCREEN VIDEO-1
private LinearLayout mContentView;
private FrameLayout mCustomViewContainer;
private View mCustomView;
private WebChromeClient.CustomViewCallback mCustomViewCallback;
FrameLayout.LayoutParams COVER_SCREEN_GRAVITY_CENTER = new FrameLayout.LayoutParams(
ViewGroup.LayoutParams.WRAP_CONTENT,
ViewGroup.LayoutParams.WRAP_CONTENT, Gravity.CENTER);
private WebChromeClient mWebChromeClient;
// FULL-SCREEN VIDEO-1
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
// FULL-SCREEN VIDEO-2
mContentView = (LinearLayout) findViewById(R.id.linearlayout);
mWebView = (WebView) findViewById(R.id.webView);
mCustomViewContainer = (FrameLayout) findViewById(R.id.fullscreen_custom_content);
mWebChromeClient = new WebChromeClient() {
@Override
public void onShowCustomView(View view,
WebChromeClient.CustomViewCallback callback) {
// if a view already exists then immediately terminate the new
// one
if (mCustomView != null) {
callback.onCustomViewHidden();
return;
}
// Add the custom view to its container.
mCustomViewContainer.addView(view, COVER_SCREEN_GRAVITY_CENTER);
mCustomView = view;
mCustomViewCallback = callback;
// hide main browser view
mContentView.setVisibility(View.GONE);
// Finally show the custom view container.
mCustomViewContainer.setVisibility(View.VISIBLE);
mCustomViewContainer.bringToFront();
}
@Override
public void onHideCustomView() {
if (mCustomView == null)
return;
// Hide the custom view.
mCustomView.setVisibility(View.GONE);
// Remove the custom view from its container.
mCustomViewContainer.removeView(mCustomView);
mCustomView = null;
mCustomViewContainer.setVisibility(View.GONE);
mCustomViewCallback.onCustomViewHidden();
// Show the content view.
mContentView.setVisibility(View.VISIBLE);
}
};
// FULL-SCREEN VIDEO-2
WebSettings webSettings = mWebView.getSettings();
webSettings.setPluginState(WebSettings.PluginState.ON);
webSettings.setJavaScriptEnabled(true);
webSettings.setUseWideViewPort(true);
webSettings.setLoadWithOverviewMode(true);
mWebView.loadUrl("http://www.google.com");
mWebView.setWebViewClient(new HelloWebViewClient());
mWebView.setWebChromeClient(new mWebChromeClient());
// Download manager
mWebView.setDownloadListener(new DownloadListener() {
public void onDownloadStart(String url, String userAgent,
String contentDisposition, String mimetype,
long contentLength) {
Request request = new Request(Uri.parse(url));
request.allowScanningByMediaScanner();
request.setNotificationVisibility(DownloadManager.Request.VISIBILITY_VISIBLE_NOTIFY_COMPLETED);
request.setDestinationInExternalPublicDir(
Environment.DIRECTORY_DOWNLOADS, "download");
DownloadManager dm = (DownloadManager) getSystemService(DOWNLOAD_SERVICE);
dm.enqueue(request);
}
});
// **//
// URL BAR AND PROGRESS BAR
progress = (ProgressBar) findViewById(R.id.progressBar);
progress.setMax(100);
urlEditText = (EditText) findViewById(R.id.urlField);
// Use Done/search button in keyboard as go button
urlEditText.setOnEditorActionListener(new OnEditorActionListener() {
public boolean onEditorAction(TextView arg0, int arg1, KeyEvent arg2) {
// Toast.makeText(getApplicationContext(), "some key pressed",
// Toast.LENGTH_LONG).show();
String url = urlEditText.getText().toString();
if (url.endsWith(".ac") || url.endsWith(".ac.uk")
|| url.endsWith(".ad") || url.endsWith(".zw")) {
if (!url.startsWith("http://")
&& !url.startsWith("https://")) {
url = "http://" + url;
}
} else
url = "https://www.google.com/search?q="
+ url.replace(" ", "+");// Prefix (replace spaces
// with a '+' sign)
mWebView.loadUrl(url);
if (validateUrl(url)) {
mWebView.getSettings().setJavaScriptEnabled(true);
mWebView.loadUrl(url);
MainActivity.this.progress.setProgress(10);
}
return false;
}
private boolean validateUrl(String url) {
return true;
}
});
// **//
}
private class mWebChromeClient extends WebChromeClient {
@Override
public void onProgressChanged(WebView view, int newProgress) {
MainActivity.this.setValue(newProgress);
super.onProgressChanged(view, newProgress);
}
}
public void setValue(int progress) {
this.progress.setProgress(progress);
}
private class HelloWebViewClient extends WebViewClient {
@Override
public boolean shouldOverrideUrlLoading(WebView webview, String url) {
webview.loadUrl(url);
return true;
}
}
// FULL-SCREEN VIDEO-3
@Override
protected void onStop() {// plays video outside frame on back button and
// prevents from going back
super.onStop();
if (mCustomView != null) {
if (mCustomViewCallback != null)
mCustomViewCallback.onCustomViewHidden();
mCustomView = null;
}
}
@Override
public void onBackPressed() {// hide custom view (in which the video plays)
// on back button
super.onBackPressed();
if (mCustomView != null) {
mWebChromeClient.onHideCustomView();
} else {
finish();
}
}
@Override
public boolean onKeyDown(int keyCode, KeyEvent event) {// prevents the
// custom view from
// running in
// background when
// app is closed
if ((keyCode == KeyEvent.KEYCODE_BACK) && mWebView.canGoBack()) {
mWebView.goBack();
return true;
}
return super.onKeyDown(keyCode, event);
// FULL-SCREEN VIDEO-3
}
}
public class MainActivity extends Activity {
private WebView mWebView;
private EditText urlEditText;
private ProgressBar progress;
// FULL-SCREEN VIDEO-1
private LinearLayout mContentView;
private FrameLayout mCustomViewContainer;
private View mCustomView;
private WebChromeClient.CustomViewCallback mCustomViewCallback;
FrameLayout.LayoutParams COVER_SCREEN_GRAVITY_CENTER = new FrameLayout.LayoutParams(
ViewGroup.LayoutParams.WRAP_CONTENT,
ViewGroup.LayoutParams.WRAP_CONTENT, Gravity.CENTER);
private WebChromeClient mWebChromeClient;
// FULL-SCREEN VIDEO-1
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
// FULL-SCREEN VIDEO-2
mContentView = (LinearLayout) findViewById(R.id.linearlayout);
mWebView = (WebView) findViewById(R.id.webView);
mCustomViewContainer = (FrameLayout) findViewById(R.id.fullscreen_custom_content);
mWebChromeClient = new WebChromeClient() {
@Override
public void onShowCustomView(View view,
WebChromeClient.CustomViewCallback callback) {
// if a view already exists then immediately terminate the new
// one
if (mCustomView != null) {
callback.onCustomViewHidden();
return;
}
// Add the custom view to its container.
mCustomViewContainer.addView(view, COVER_SCREEN_GRAVITY_CENTER);
mCustomView = view;
mCustomViewCallback = callback;
// hide main browser view
mContentView.setVisibility(View.GONE);
// Finally show the custom view container.
mCustomViewContainer.setVisibility(View.VISIBLE);
mCustomViewContainer.bringToFront();
}
@Override
public void onHideCustomView() {
if (mCustomView == null)
return;
// Hide the custom view.
mCustomView.setVisibility(View.GONE);
// Remove the custom view from its container.
mCustomViewContainer.removeView(mCustomView);
mCustomView = null;
mCustomViewContainer.setVisibility(View.GONE);
mCustomViewCallback.onCustomViewHidden();
// Show the content view.
mContentView.setVisibility(View.VISIBLE);
}
};
// FULL-SCREEN VIDEO-2
WebSettings webSettings = mWebView.getSettings();
webSettings.setPluginState(WebSettings.PluginState.ON);
webSettings.setJavaScriptEnabled(true);
webSettings.setUseWideViewPort(true);
webSettings.setLoadWithOverviewMode(true);
mWebView.loadUrl("http://www.google.com");
mWebView.setWebChromeClient(new HelloWebViewClient());
// Download manager
mWebView.setDownloadListener(new DownloadListener() {
public void onDownloadStart(String url, String userAgent,
String contentDisposition, String mimetype,
long contentLength) {
Request request = new Request(Uri.parse(url));
request.allowScanningByMediaScanner();
request.setNotificationVisibility(DownloadManager.Request.VISIBILITY_VISIBLE_NOTIFY_COMPLETED);
request.setDestinationInExternalPublicDir(
Environment.DIRECTORY_DOWNLOADS, "download");
DownloadManager dm = (DownloadManager) getSystemService(DOWNLOAD_SERVICE);
dm.enqueue(request);
}
});
// **//
// URL BAR AND PROGRESS BAR
progress = (ProgressBar) findViewById(R.id.progressBar);
progress.setMax(100);
urlEditText = (EditText) findViewById(R.id.urlField);
// Use Done/search button in keyboard as go button
urlEditText.setOnEditorActionListener(new OnEditorActionListener() {
public boolean onEditorAction(TextView arg0, int arg1, KeyEvent arg2) {
// Toast.makeText(getApplicationContext(), "some key pressed",
// Toast.LENGTH_LONG).show();
String url = urlEditText.getText().toString();
if (url.endsWith(".ac") || url.endsWith(".ac.uk")
|| url.endsWith(".ad") || url.endsWith(".zw")) {
if (!url.startsWith("http://")
&& !url.startsWith("https://")) {
url = "http://" + url;
}
} else
url = "https://www.google.com/search?q="
+ url.replace(" ", "+");// Prefix (replace spaces
// with a '+' sign)
mWebView.loadUrl(url);
if (validateUrl(url)) {
mWebView.getSettings().setJavaScriptEnabled(true);
mWebView.loadUrl(url);
MainActivity.this.progress.setProgress(10);
}
return false;
}
private boolean validateUrl(String url) {
return true;
}
});
// **//
}
private class HelloWebViewClient extends WebChromeClient {
@Override
public void onProgressChanged(WebView view, int newProgress) {
MainActivity.this.setValue(newProgress);
super.onProgressChanged(view, newProgress);
}
}
public void setValue(int progress) {
this.progress.setProgress(progress);
}
private class HelloWebViewClient1 extends WebViewClient {
@Override
public boolean shouldOverrideUrlLoading(WebView webview, String url) {
webview.setWebChromeClient(mWebChromeClient);
webview.loadUrl(url);
return true;
}
}
// FULL-SCREEN VIDEO-3
@Override
protected void onStop() {// plays video outside frame on back button and
// prevents from going back
super.onStop();
if (mCustomView != null) {
if (mCustomViewCallback != null)
mCustomViewCallback.onCustomViewHidden();
mCustomView = null;
}
}
@Override
public void onBackPressed() {// hide custom view (in which the video plays)
// on back button
super.onBackPressed();
if (mCustomView != null) {
mWebChromeClient.onHideCustomView();
} else {
finish();
}
}
@Override
public boolean onKeyDown(int keyCode, KeyEvent event) {// prevents the
// custom view from
// running in
// background when
// app is closed
if ((keyCode == KeyEvent.KEYCODE_BACK) && mWebView.canGoBack()) {
mWebView.goBack();
return true;
}
return super.onKeyDown(keyCode, event);
// FULL-SCREEN VIDEO-3
}
}
public class MainActivity extends Activity {
private WebView mWebView;
private EditText urlEditText;
private ProgressBar progress;
// FULL-SCREEN VIDEO-1
private LinearLayout mContentView;
private FrameLayout mCustomViewContainer;
private View mCustomView;
private WebChromeClient.CustomViewCallback mCustomViewCallback;
FrameLayout.LayoutParams COVER_SCREEN_GRAVITY_CENTER = new FrameLayout.LayoutParams(
ViewGroup.LayoutParams.WRAP_CONTENT,
ViewGroup.LayoutParams.WRAP_CONTENT, Gravity.CENTER);
private WebChromeClient mWebChromeClient;
// FULL-SCREEN VIDEO-1
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
// FULL-SCREEN VIDEO-2
mContentView = (LinearLayout) findViewById(R.id.linearlayout);
mWebView = (WebView) findViewById(R.id.webView);
mCustomViewContainer = (FrameLayout) findViewById(R.id.fullscreen_custom_content);
mWebChromeClient = new WebChromeClient() {
@Override
public void onShowCustomView(View view,
WebChromeClient.CustomViewCallback callback) {
// if a view already exists then immediately terminate the new
// one
if (mCustomView != null) {
callback.onCustomViewHidden();
return;
}
// Add the custom view to its container.
mCustomViewContainer.addView(view, COVER_SCREEN_GRAVITY_CENTER);
mCustomView = view;
mCustomViewCallback = callback;
// hide main browser view
mContentView.setVisibility(View.GONE);
// Finally show the custom view container.
mCustomViewContainer.setVisibility(View.VISIBLE);
mCustomViewContainer.bringToFront();
}
@Override
public void onHideCustomView() {
if (mCustomView == null)
return;
// Hide the custom view.
mCustomView.setVisibility(View.GONE);
// Remove the custom view from its container.
mCustomViewContainer.removeView(mCustomView);
mCustomView = null;
mCustomViewContainer.setVisibility(View.GONE);
mCustomViewCallback.onCustomViewHidden();
// Show the content view.
mContentView.setVisibility(View.VISIBLE);
}
};
// FULL-SCREEN VIDEO-2
WebSettings webSettings = mWebView.getSettings();
webSettings.setPluginState(WebSettings.PluginState.ON);
webSettings.setJavaScriptEnabled(true);
webSettings.setUseWideViewPort(true);
webSettings.setLoadWithOverviewMode(true);
mWebView.loadUrl("http://www.google.com");
mWebView.setWebViewClient(new HelloWebViewClient());
mWebView.setWebChromeClient(new mWebChromeClient());
// Download manager
mWebView.setDownloadListener(new DownloadListener() {
public void onDownloadStart(String url, String userAgent,
String contentDisposition, String mimetype,
long contentLength) {
Request request = new Request(Uri.parse(url));
request.allowScanningByMediaScanner();
request.setNotificationVisibility(DownloadManager.Request.VISIBILITY_VISIBLE_NOTIFY_COMPLETED);
request.setDestinationInExternalPublicDir(
Environment.DIRECTORY_DOWNLOADS, "download");
DownloadManager dm = (DownloadManager) getSystemService(DOWNLOAD_SERVICE);
dm.enqueue(request);
}
});
// **//
// URL BAR AND PROGRESS BAR
progress = (ProgressBar) findViewById(R.id.progressBar);
progress.setMax(100);
urlEditText = (EditText) findViewById(R.id.urlField);
// Use Done/search button in keyboard as go button
urlEditText.setOnEditorActionListener(new OnEditorActionListener() {
public boolean onEditorAction(TextView arg0, int arg1, KeyEvent arg2) {
// Toast.makeText(getApplicationContext(), "some key pressed",
// Toast.LENGTH_LONG).show();
String url = urlEditText.getText().toString();
if (url.endsWith(".ac") || url.endsWith(".ac.uk")
|| url.endsWith(".ad") || url.endsWith(".zw")) {
if (!url.startsWith("http://")
&& !url.startsWith("https://")) {
url = "http://" + url;
}
} else
url = "https://www.google.com/search?q="
+ url.replace(" ", "+");// Prefix (replace spaces
// with a '+' sign)
mWebView.loadUrl(url);
if (validateUrl(url)) {
mWebView.getSettings().setJavaScriptEnabled(true);
mWebView.loadUrl(url);
MainActivity.this.progress.setProgress(10);
}
return false;
}
private boolean validateUrl(String url) {
return true;
}
});
// **//
}
private class mWebChromeClient extends WebChromeClient {
@Override
public void onProgressChanged(WebView view, int newProgress) {
MainActivity.this.setValue(newProgress);
super.onProgressChanged(view, newProgress);
}
}
public void setValue(int progress) {
this.progress.setProgress(progress);
}
private class HelloWebViewClient extends WebViewClient {
@Override
public boolean shouldOverrideUrlLoading(WebView webview, String url) {
webview.loadUrl(url);
return true;
}
}
// FULL-SCREEN VIDEO-3
@Override
protected void onStop() {// plays video outside frame on back button and
// prevents from going back
super.onStop();
if (mCustomView != null) {
if (mCustomViewCallback != null)
mCustomViewCallback.onCustomViewHidden();
mCustomView = null;
}
}
@Override
public void onBackPressed() {// hide custom view (in which the video plays)
// on back button
super.onBackPressed();
if (mCustomView != null) {
mWebChromeClient.onHideCustomView();
} else {
finish();
}
}
@Override
public boolean onKeyDown(int keyCode, KeyEvent event) {// prevents the
// custom view from
// running in
// background when
// app is closed
if ((keyCode == KeyEvent.KEYCODE_BACK) && mWebView.canGoBack()) {
mWebView.goBack();
return true;
}
return super.onKeyDown(keyCode, event);
// FULL-SCREEN VIDEO-3
}
}
public class MainActivity extends Activity {
private WebView mWebView;
private EditText urlEditText;
private ProgressBar progress;
// FULL-SCREEN VIDEO-1
private LinearLayout mContentView;
private FrameLayout mCustomViewContainer;
private View mCustomView;
private WebChromeClient.CustomViewCallback mCustomViewCallback;
FrameLayout.LayoutParams COVER_SCREEN_GRAVITY_CENTER = new FrameLayout.LayoutParams(
ViewGroup.LayoutParams.WRAP_CONTENT,
ViewGroup.LayoutParams.WRAP_CONTENT, Gravity.CENTER);
private WebChromeClient mWebChromeClient;
// FULL-SCREEN VIDEO-1
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
// FULL-SCREEN VIDEO-2
mContentView = (LinearLayout) findViewById(R.id.linearlayout);
mWebView = (WebView) findViewById(R.id.webView);
mCustomViewContainer = (FrameLayout) findViewById(R.id.fullscreen_custom_content);
mWebChromeClient = new WebChromeClient() {
@Override
public void onShowCustomView(View view,
WebChromeClient.CustomViewCallback callback) {
// if a view already exists then immediately terminate the new
// one
if (mCustomView != null) {
callback.onCustomViewHidden();
return;
}
// Add the custom view to its container.
mCustomViewContainer.addView(view, COVER_SCREEN_GRAVITY_CENTER);
mCustomView = view;
mCustomViewCallback = callback;
// hide main browser view
mContentView.setVisibility(View.GONE);
// Finally show the custom view container.
mCustomViewContainer.setVisibility(View.VISIBLE);
mCustomViewContainer.bringToFront();
}
@Override
public void onHideCustomView() {
if (mCustomView == null)
return;
// Hide the custom view.
mCustomView.setVisibility(View.GONE);
// Remove the custom view from its container.
mCustomViewContainer.removeView(mCustomView);
mCustomView = null;
mCustomViewContainer.setVisibility(View.GONE);
mCustomViewCallback.onCustomViewHidden();
// Show the content view.
mContentView.setVisibility(View.VISIBLE);
}
};
// FULL-SCREEN VIDEO-2
WebSettings webSettings = mWebView.getSettings();
webSettings.setPluginState(WebSettings.PluginState.ON);
webSettings.setJavaScriptEnabled(true);
webSettings.setUseWideViewPort(true);
webSettings.setLoadWithOverviewMode(true);
mWebView.loadUrl("http://www.google.com");
mWebView.setWebChromeClient(new HelloWebViewClient());
// Download manager
mWebView.setDownloadListener(new DownloadListener() {
public void onDownloadStart(String url, String userAgent,
String contentDisposition, String mimetype,
long contentLength) {
Request request = new Request(Uri.parse(url));
request.allowScanningByMediaScanner();
request.setNotificationVisibility(DownloadManager.Request.VISIBILITY_VISIBLE_NOTIFY_COMPLETED);
request.setDestinationInExternalPublicDir(
Environment.DIRECTORY_DOWNLOADS, "download");
DownloadManager dm = (DownloadManager) getSystemService(DOWNLOAD_SERVICE);
dm.enqueue(request);
}
});
// **//
// URL BAR AND PROGRESS BAR
progress = (ProgressBar) findViewById(R.id.progressBar);
progress.setMax(100);
urlEditText = (EditText) findViewById(R.id.urlField);
// Use Done/search button in keyboard as go button
urlEditText.setOnEditorActionListener(new OnEditorActionListener() {
public boolean onEditorAction(TextView arg0, int arg1, KeyEvent arg2) {
// Toast.makeText(getApplicationContext(), "some key pressed",
// Toast.LENGTH_LONG).show();
String url = urlEditText.getText().toString();
if (url.endsWith(".ac") || url.endsWith(".ac.uk")
|| url.endsWith(".ad") || url.endsWith(".zw")) {
if (!url.startsWith("http://")
&& !url.startsWith("https://")) {
url = "http://" + url;
}
} else
url = "https://www.google.com/search?q="
+ url.replace(" ", "+");// Prefix (replace spaces
// with a '+' sign)
mWebView.loadUrl(url);
if (validateUrl(url)) {
mWebView.getSettings().setJavaScriptEnabled(true);
mWebView.loadUrl(url);
MainActivity.this.progress.setProgress(10);
}
return false;
}
private boolean validateUrl(String url) {
return true;
}
});
// **//
}
private class HelloWebViewClient extends WebChromeClient {
@Override
public void onProgressChanged(WebView view, int newProgress) {
MainActivity.this.setValue(newProgress);
super.onProgressChanged(view, newProgress);
}
}
public void setValue(int progress) {
this.progress.setProgress(progress);
}
private class HelloWebViewClient1 extends WebViewClient {
@Override
public boolean shouldOverrideUrlLoading(WebView webview, String url) {
webview.setWebChromeClient(mWebChromeClient);
webview.loadUrl(url);
return true;
}
}
// FULL-SCREEN VIDEO-3
@Override
protected void onStop() {// plays video outside frame on back button and
// prevents from going back
super.onStop();
if (mCustomView != null) {
if (mCustomViewCallback != null)
mCustomViewCallback.onCustomViewHidden();
mCustomView = null;
}
}
@Override
public void onBackPressed() {// hide custom view (in which the video plays)
// on back button
super.onBackPressed();
if (mCustomView != null) {
mWebChromeClient.onHideCustomView();
} else {
finish();
}
}
@Override
public boolean onKeyDown(int keyCode, KeyEvent event) {// prevents the
// custom view from
// running in
// background when
// app is closed
if ((keyCode == KeyEvent.KEYCODE_BACK) && mWebView.canGoBack()) {
mWebView.goBack();
return true;
}
return super.onKeyDown(keyCode, event);
// FULL-SCREEN VIDEO-3
}
}
你的设备上安装了哪个Android操作系统版本？“不工作”具体是什么？如果您能提供更多关于您遇到的确切问题的详细信息，那就太好了。至少在方法3中，WebViewClient从未连接到webView。那么您的shouldOverrideUrlLoading实现应该如何让webView知道呢？这可以用switch语句纠正吗？您想实现什么？你看到了什么结果？仅仅在这里复制和粘贴代码并不能得到有用的答案。