I am using JQuery in my android webview, and the app is extremely slow, takes about 10-15 seconds to navigate across. Is there a way I can speed it up? I have tried every thread and almost every trick in the book, is there anything I am missing? And yes I already added hardwareaccelerated in manifest, still no luck!
public void onCreate(Bundle savedInstanceState){
super.onCreate(savedInstanceState);
requestWindowFeature(Window.FEATURE_NO_TITLE);
// getWindow().requestFeature(Window.FEATURE_PROGRESS);
getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN, WindowManager.LayoutParams.FLAG_FULLSCREEN);
setContentView(R.layout.main);
progress = (ProgressBar) findViewById(R.id.ProgressBar);
progress.setVisibility(View.VISIBLE);
webview = (WebView)findViewById(R.id.webview);
webview.setInitialScale(1);
WebSettings webSettings = webview.getSettings();
webSettings.setJavaScriptEnabled(true);
webview.getSettings().setJavaScriptEnabled(true);
webview.getSettings().setLoadWithOverviewMode(true);
webview.getSettings().setUseWideViewPort(true);
// webview.setWebViewClient(new MyCustomWebViewClient());
if (Build.VERSION.SDK_INT >= 11){
webview.setLayerType(View.LAYER_TYPE_SOFTWARE, null);
}
webview.setScrollBarStyle(View.SCROLLBARS_OUTSIDE_OVERLAY);
webview.setScrollbarFadingEnabled(false);
webview.getSettings().setRenderPriority(RenderPriority.HIGH);
webview.getSettings().setCacheMode(WebSettings.LOAD_NO_CACHE);
// webview.getSettings().setBlockNetworkLoads(true);
webview.getSettings().setBuiltInZoomControls(true);
webview.loadUrl("file:///android_asset/index.html");
webview.getSettings().setDomStorageEnabled(true);
webview.getSettings().setDatabaseEnabled(true);
webview.getSettings().setAppCacheEnabled(true);
//http://www.inpixelitrust.fr/demos/restaurant_picker/
//file:///android_asset/index.html
webview.getSettings().setSupportZoom(false);
/* webview.setWebChromeClient(new WebChromeClient()
{
public void onProgressChanged(WebView view, int progress)
{
// update the progressBar
MainActivity.this.setProgress(progress * 100);
}
});*/
if (!isTaskRoot()) {
final Intent intent = getIntent();
final String intentAction = intent.getAction();
if (intent.hasCategory(Intent.CATEGORY_LAUNCHER) && intentAction != null && intentAction.equals(Intent.ACTION_MAIN)) {
finish();
return;
}
}
}
private class MyCustomWebViewClient extends WebViewClient {
#Override
public boolean shouldOverrideUrlLoading(WebView view, String url) {
view.loadUrl(url);
return true;
}
public void onPageStarted(WebView view, String url, Bitmap favicon) {
progress.setVisibility(View.VISIBLE);
}
public void onPageFinished(WebView view, String url) {
progress.setVisibility(View.GONE);
synchronized (SPLASH_LOCK) {
SPLASH_LOCK.notifyAll();
}
}
}
}
Can you please share more details about what exactly is slow? What is the content that you are loading?
Once thing that is very wrong in your code is calling loadUrl from shouldOverrideUrlLoading. Please don't do this, just return true.
What is SPLASH_LOCK used for? Where do you wait on it?
Related
I'm opening a WebView with static html in my Android app. The html contains a link as well which currently gets opened in the system browser, i.e. the app is put in the background. How can I achieve opening that link in the WebView itself? I tried it with
webView.setWebViewClient(new WebViewclient() {
#Override
public boolean shouldOverrideUrlLoading(WebView view, WebResourceRequest request) {
// gets never called
}
}
but that method is never called.
Try this it works for you.
private void loadWebView() {
webView = (WebView) view.findViewById(R.id.webView);
WebSettings webSettings = webView.getSettings();
webSettings.setJavaScriptEnabled(true);
webView.setWebViewClient(new WebViewClient());
webView.getSettings().setDomStorageEnabled(true);
final ProgressDialog pd = ProgressDialog.show(getActivity(), "", "Loading...", true);
webView.getSettings().setJavaScriptEnabled(true);
webView.loadUrl("http://yourWeb.com/");
webView.setWebViewClient(new WebViewClient() {
#Override
public void onPageStarted(WebView view, String url, Bitmap favicon) {
pd.show();
}
#Override
public void onPageFinished(WebView view, String url) {
try {
pd.dismiss();
} catch (Exception e) {
}
}
});
}
guys! I have problem to load html page with android-webview. I need to load the url with my webview but not with the mobile system broswer or other broswer, so I have to apply the method setWebViewClient() to my webview but not WebChromeClient(). However, there's load nothing but blank page when applied the setWebViewClient(), and works fine with the later method. I don't know where's problem, here is the code:
.xml :
<WebView android:id="#+id/webview"
android:layout_marginTop="50dp"
android:layout_width="fill_parent"
android:layout_height="fill_parent"/>
.java :
WebView webView = (WebView)findViewById(R.id.webView);
WebSettings webSettings = webView.getSettings();
webSettings.setJavaScriptEnabled(true);
if (Build.VERSION.SDK_INT >= 19) {
webSettings.setCacheMode(WebSettings.LOAD_CACHE_ELSE_NETWORK);
}
private String loadUrl = "http://www.baidu.com";
webView.loadUrl(loadUrl);
webView.setWebViewClient(new WebViewClient() {
#Override
public boolean shouldOverrideUrlLoading(WebView view, String url) {
view.loadUrl(url);
return true;
}
#Override
public void onLoadResource(WebView view, String url) {
view.loadUrl(url);
super.onLoadResource(view, url);
}
#Override
public void onPageStarted(WebView view, String url, Bitmap favicon) {
view.loadUrl(url);
super.onPageStarted(view, url, favicon);
}
});
/*
webView.setWebChromeClient(new WebChromeClient() {
#Override
public void onProgressChanged(WebView view, int newProgress) {
Log.v(Log_Tag, String.valueOf(newProgress));
}
});
*/
Just put this code in your activity
private String loadUrl = "https://www.google.com";
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
WebView mWebView = (WebView) findViewById(R.id.webView);
WebSettings mWebSettings = mWebView.getSettings();
mWebSettings.setJavaScriptEnabled(true);
WebViewClient mWebViewClient = new WebViewClient();
mWebView.setWebViewClient(mWebViewClient);
mWebView.loadUrl(loadUrl);
}
You shouldn't override methods in WebViewClient class if you don't want to change their behavior or add some functionality. And don't forget to add permission Internet to your manifest file. WebView will not work without it.
Thanks #Mike M. again. The method shouldOverrideUrlLoading() should return false if you want to loading the url with your webView but not with the mobile system default browser or other Third-Party browsers. And, if you want to deal some javascript actions of the webpage with your webView, you're suggested to apply the WebChromClient to your webView.
Here is the good example:
WebView webView = (WebView)findViewById(R.id.webView);
WebSettings webSettings = webView.getSettings();
webSettings.setJavaScriptEnabled(true);
//load the page with cache
if (Build.VERSION.SDK_INT >= 19) {
webSettings.setCacheMode(WebSettings.LOAD_CACHE_ELSE_NETWORK);
}
webView.setWebViewClient(new WebViewClient() {
#Override
public boolean shouldOverrideUrlLoading(WebView view, String url) {
//return true load with system-default-browser or other browsers, false with your webView
return false;
}
#Override
public void onLoadResource(WebView view, String url) {
super.onLoadResource(view, url);
}
#Override
public void onPageStarted(WebView view, String url, Bitmap favicon) {
super.onPageStarted(view, url, favicon);
}
});
webView.setWebChromeClient(new WebChromeClient() {
#Override
public void onProgressChanged(WebView view, int newProgress) {
Log.v(Log_Tag, String.valueOf(newProgress));
//put your code here if your want to show the progress with progressbar
}
});
private String loadUrl = "http://www.baidu.com";
webView.loadUrl(loadUrl);
public class MainActivity extends AppCompatActivity {
WebView webView;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
webView = findViewById(R.id.webView);
webView.setWebViewClient(new WebViewClient());
webView.getSettings().setJavaScriptEnabled(true);
webView.loadUrl("https://www.w3schools.com/");
emphasized text
I make small app which involve aspx pages , I try open it throw my webview I got blank screen .
I try open it with chrome browser it give me certificate needed
my code is very simple I add some documentation to explain what is going on
#SuppressLint("SetJavaScriptEnabled")
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_web);
Bundle bundle = getIntent().getExtras();
if(bundle != null){
urlSite = bundle.getString("passed_url");
}
_toolbar = (Toolbar)findViewById(R.id.toolbar);
setSupportActionBar(_toolbar);
getSupportActionBar().setDisplayHomeAsUpEnabled(true);
_toolbar.setNavigationOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
onBackPressed();
}
});
webView = (WebView) findViewById(R.id.webView);
WebSettings webSettings = webView.getSettings();
// enable javascript
webSettings.setJavaScriptEnabled(true);
webSettings.setDomStorageEnabled(true);
webSettings.setJavaScriptCanOpenWindowsAutomatically(true);
webSettings.setUseWideViewPort(true);
webSettings.setLoadWithOverviewMode(true);
webSettings.setPluginState(WebSettings.PluginState.ON_DEMAND);
webView.setWebChromeClient(new WebChromeClient());
webView.setWebViewClient(new WebViewClient() {
#Override
public void onPageFinished(WebView view, String url) {
super.onPageFinished(view, url);
new ParseURl().execute(new String[]{urlSite});
}
#Override
public boolean shouldOverrideUrlLoading(WebView view, String url) {
view.loadUrl(url);
return true;
}
});
if(urlSite != null){
webView.clearCache(true);
webView.loadUrl(urlSite);
// webView.loadUrl("file:///android_asset/af.html");
}
}
After some research I found the answer, just override onReceivedSslError method and skip it.
#Override
public void onReceivedSslError(WebView view, SslErrorHandler handler, SslError error) {
handler.proceed(); // Ignore SSL certificate errors
}
I am trying to load a URL in WebView having .pdf link.
Link is not appearing on JELLY_BEAN devices [Tested on 4.1, 4.1.1 & 4.2]
However, the link is visible on all KITKAT and above devices.
Here's the code:
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.directory_browser);
webView = (ExtendedWebView) findViewById(R.id.webBrowser);
webSettings = webView.getSettings();
progressBar = (ProgressBar) findViewById(R.id.browserProgressBar);
progressTextView = (TextView) findViewById(R.id.browserProgressText);
preparewebView();
webView.loadUrl(getIntent().getStringExtra("medicalUrl"));
}
private void preparewebView() {
webSettings.setJavaScriptEnabled(true);
webSettings.setBuiltInZoomControls(true);
webSettings.setAllowFileAccess(true);
webSettings.setDomStorageEnabled(true);
webView.requestFocusFromTouch();
webView.setInitialScale(getResources().getInteger(R.integer.medical_webview_initialScale));
webSettings.setBuiltInZoomControls(false);
webView.setPadding(0, 0, 0, 0);
webView.getSettings().setTextZoom(100);
webView.getSettings().setRenderPriority(RenderPriority.HIGH);
webView.setWebViewClient(new WebViewClient() {
#Override
public boolean shouldOverrideUrlLoading(WebView view, String url) {
return super.shouldOverrideUrlLoading(view, url);
}
#Override
public void onPageStarted(WebView view, String url, Bitmap favicon) {
//Decide whether to set a download listener
String prefix = com.theteamie.android.uwc.Webservice.URL.getUwcseaWebappDownloadUrl();
if (!url.startsWith(prefix)){
Log.v("WebViewClient", "Appending downloader");
view.setDownloadListener(new Downloader());
}
super.onPageStarted(view, url, favicon);
}
});
webView.setWebChromeClient(new WebChromeClient() {
public void onProgressChanged(WebView view, int progress) {
// Activities and WebViews measure progress with different
// scales.
// The progress meter will automatically disappear when we
// reach 100%
try {
String progressText = getResources().getString(R.string.loading) + "... ";
if (progress != 100) {
progressBar.setVisibility(ProgressBar.VISIBLE);
progressBar.setProgress(progress);
progressTextView.setVisibility(TextView.VISIBLE);
progressTextView.setText(progressText + Integer.toString(progress));
} else {
progressBar.setVisibility(ProgressBar.GONE);
progressTextView.setVisibility(TextView.GONE);
}
} catch (IllegalStateException e) {
Log.e(TAG, Log.getStackTraceString(e));
}
}
#Override
public void onReceivedTitle(WebView view, String title) {
super.onReceivedTitle(view, title);
}
});
}
Any suggestions what could be the reason why the link is not visible in WebView for those devices.
Thanks
try this way may this help you
webview.getSettings().setJavaScriptEnabled(true);
String pdf = "YourLink.pdf";
webview.loadUrl("http://docs.google.com/gview?embedded=true&url=" + pdf);
try like this :-
webview.getSettings().setJavaScriptEnabled(true);
webview.setWebViewClient(new WebViewClient() {
public boolean shouldOverrideUrlLoading(WebView view, String url) {
view.loadUrl(url);
return true;
}
});
webview.loadUrl(your_url);
I am trying to load my site in android web view, whenever I set url to google.com or any other it loads without any problem but when I try to load my site darpankulkarni.in then it just shows blank screen.
WebViewActivity:
public class WebViewActivity extends Activity {
private WebView webView;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_webview);
webView = (WebView) findViewById(R.id.webView);
if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.JELLY_BEAN)
{
webView.getSettings().setAllowFileAccess(true);
webView.getSettings().setAllowContentAccess(true);
webView.getSettings().setAllowFileAccessFromFileURLs(true);
webView.getSettings().setAllowUniversalAccessFromFileURLs(true);
}
webView.getSettings().setJavaScriptEnabled(true);
webView.loadUrl("http://www.darpankulkarni.in");
//webView.loadUrl("http://www.google.com");
webView.setWebViewClient(new MyWebViewClient());
}
}
MyWebViewClient:
class MyWebViewClient extends WebViewClient {
#Override
// show the web page in webview but not in web browser
public boolean shouldOverrideUrlLoading(WebView view, String url) {
view.loadUrl(url);
return true;
}
#Override
public void onPageFinished(WebView view, String url) {
super.onPageFinished(view, url);
//webProg.setVisibility(View.GONE);
}
#Override
public void onPageStarted(WebView view, String url, Bitmap favicon) {
super.onPageStarted(view, url, favicon);
}
#Override
public void onLoadResource(WebView view, String url) {
super.onLoadResource(view, url);
}
}
fixed it by adding code below settings to the web view inside of onCreate
if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.JELLY_BEAN)
{
websettings.setAllowFileAccess(true);
websettings.setAllowContentAccess(true);
websettings.setAllowFileAccessFromFileURLs(true);
websettings.setAllowUniversalAccessFromFileURLs(true);
}
Apply the basic settings to your web view for loading the web view in view port
mWebView.getSettings().setLoadWithOverviewMode(true);
mWebView.getSettings().setUseWideViewPort(true);
So Here is the complete working code
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
mWebView=(WebView)findViewById(R.id.webView1);
if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.JELLY_BEAN)
{
mWebView.getSettings().setAllowFileAccess(true);
mWebView.getSettings().setAllowContentAccess(true);
mWebView.getSettings().setAllowFileAccessFromFileURLs(true);
mWebView.getSettings().setAllowUniversalAccessFromFileURLs(true);
}
mWebView.getSettings().setLoadWithOverviewMode(true);
mWebView.getSettings().setUseWideViewPort(true);
ProgressDialog progressDialog = new ProgressDialog(MainActivity.this);
mWebView.setWebViewClient(new WebViewClient() {
public boolean shouldOverrideUrlLoading(WebView view, String url) {
view.loadUrl(url);
return true;
}
public void onLoadResource (WebView view, String url) {
progressDialog.setMessage("Loading the Web View");
progressDialog.show();
}
public void onPageFinished(WebView view, String url) {
if (progressDialog.isShowing()) {
progressDialog.dismiss();
}
}
});
mWebView.getSettings().setJavaScriptEnabled(true);
mWebView.loadUrl("http://www.darpankulkarni.in");
// mWebView.loadUrl("http://www.google.com");
// mWebView.setWebViewClient(new MyWebViewClient());
}
Don't forget to give the internet permission in your manifest
<uses-permission android:name="android.permission.INTERNET" />
I created a progress dialog for loading the web view as it taking some time to load.
Hope this vll help !!