Develop Reference

How to remove the white screen before the webview load?

I am creating an app that loads a website through the webview, and before it shows a splash screen. The problem is that after the splash screen a white screen appear and then the webview loads.
I don't want to use a timer in the splash scree, I want it to be gone once the webview is loaded. I saw that I need to move the splash activity to the main activity, but I am not sure how. I am a beginner with android studio.
AndroidManifest.xml:
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="app.atlasdatabase">
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
<application
android:allowBackup="true"
android:icon="#mipmap/ic_launcher"
android:label="#string/app_name"
android:supportsRtl="true"
android:theme="#style/AppTheme">
<meta-data
android:name="com.google.android.gms.version"
android:value="#integer/google_play_services_version"/>
<activity
android:name=".SplashActivity"
android:theme="#style/SplashTheme">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity
android:name="com.google.android.gms.ads.AdActivity"
android:configChanges="keyboard|keyboardHidden|orientation|screenLayout|uiMode|screenSize|smallestScreenSize"
android:theme="#android:style/Theme.Translucent" />
<activity
android:name=".MainActivity"
android:theme="#style/Theme.AppCompat.NoActionBar">
</activity>
</application>
</manifest>
MainActivity.java:
package app.atlasdatabase;
import android.app.AlertDialog;
import android.content.DialogInterface;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.text.Html;
import android.view.KeyEvent;
import android.view.Window;
import android.webkit.WebSettings;
import android.webkit.WebView;
import com.google.android.gms.ads.AdRequest;
import com.google.android.gms.ads.AdView;
import static app.atlasdatabase.R.style.AppCompatAlertDialogStyle;
public class MainActivity extends AppCompatActivity {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
requestWindowFeature(Window.FEATURE_NO_TITLE);
setContentView(R.layout.activity_main);
AdView mAdView = (AdView) findViewById(R.id.adView);
AdRequest adRequest = new AdRequest.Builder().build();
mAdView.loadAd(adRequest);
WebView myWebView = (WebView) findViewById(R.id.atlasdatabase);
WebSettings webSettings = myWebView.getSettings();
webSettings.setJavaScriptEnabled(true);
webSettings.setDomStorageEnabled(true);
webSettings.setAppCacheEnabled(true);
webSettings.setDatabaseEnabled(true);
webSettings.setAllowFileAccessFromFileURLs(true);
webSettings.setAllowUniversalAccessFromFileURLs(true);
myWebView.loadUrl("file:///android_asset/index.html");
}
/**
* Exit the app if user select yes.
*/
private void doExit() {
AlertDialog.Builder alertDialog = new AlertDialog.Builder(
MainActivity.this, AppCompatAlertDialogStyle);
alertDialog.setPositiveButton(R.string.yes, new DialogInterface.OnClickListener() {
#Override
public void onClick(DialogInterface dialog, int which) {
finish();
}
});
alertDialog.setTitle(R.string.exit);
alertDialog.setMessage(R.string.exitmsg);
alertDialog.setNegativeButton(R.string.no, null);
alertDialog.show();
}
#Override
public void onBackPressed()
{
WebView webView = (WebView) findViewById(R.id.atlasdatabase);
if(webView.canGoBack()){
webView.goBack();
}else{
/* Close the app without the Dialog
super.onBackPressed();
*/
/* Use the dialog to Exit the App */
doExit();
}
}
}
SplashActivity.java:
package app.atlasdatabase;
import android.content.Intent;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
public class SplashActivity extends AppCompatActivity {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
Intent intent = new Intent(this, MainActivity.class);
startActivity(intent);
finish();
}
}
activity_main.xml:
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
xmlns:ads="http://schemas.android.com/apk/res-auto"
tools:context="atlasdb.atlasdatabase.MainActivity">
<WebView
android:id="#+id/atlasdatabase"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true" />
<com.google.android.gms.ads.AdView
android:id="#+id/adView"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_centerHorizontal="true"
ads:adSize="SMART_BANNER"
ads:adUnitId="#string/banner_home_footer">
</com.google.android.gms.ads.AdView>
</RelativeLayout>
background_splash.xml:
<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
<!-- Background color -->
<item android:drawable="#color/colorPrimary"/>
<!-- Image at the center of the screen -->
<item>
<bitmap android:gravity="center" android:src="#drawable/splash"/>
</item>
</layer-list>

I found the simplest answer in
How to manage the Blank White Loading screen of an Android Webview?, which helped me to solve the problem I was facing without any Splash activity Screen:
In Android manifest:
<activity android:name=".MainActivity"
android:theme="#style/Splash">
...
and on Activity, after creating webView, set the background to be transparent.
myWebView = (WebView)findViewById(R.id.webView);
myWebView.setBackgroundColor(Color.TRANSPARENT);
(I have added progress bar popup and killed on pageFinished for users to know loading is in progress.)

Here in the answer you can see comments where you need to concern.
You don't need a SplashActivity for this.
You can keep a view which is match_parent to the root view (so it will go full screen) and add your image or whatever to that.
When your Activity loads make sure it is visible/or like in the code given # onPageStarted if the view is not loaded yet, you can display your logo..
When the web view is ready as in the comment # onPageFinished make your splashView invisible or view gone!
for these tasks you can use android:visibility="gone" in Xml, yourRootViewWithImage.setVisibility(View.VISIBLE);
yourRootViewWithImage.setVisibility(View.GONE); use these lines in proper places!
Credit goes to this post, example :
public class MainActivity extends AppCompatActivity {
private boolean loadingFinished = true;
private boolean redirect = false;
private WebView myWebView;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
requestWindowFeature(Window.FEATURE_NO_TITLE);
setContentView(R.layout.activity_main);
AdView mAdView = (AdView) findViewById(R.id.adView);
AdRequest adRequest = new AdRequest.Builder().build();
mAdView.loadAd(adRequest);
myWebView = (WebView) findViewById(R.id.atlasdatabase);
WebSettings webSettings = myWebView.getSettings();
webSettings.setJavaScriptEnabled(true);
webSettings.setDomStorageEnabled(true);
webSettings.setAppCacheEnabled(true);
webSettings.setDatabaseEnabled(true);
webSettings.setAllowFileAccessFromFileURLs(true);
webSettings.setAllowUniversalAccessFromFileURLs(true);
myWebView.loadUrl("file:///android_asset/index.html");
myWebView.setWebViewClient(new WebViewClient() {
#Override
public boolean shouldOverrideUrlLoading(
WebView view, WebResourceRequest request) {
if (!loadingFinished) {
redirect = true;
}
loadingFinished = false;
myWebView.loadUrl(request.getUrl().toString());
return true;
}
#Override
public void onPageStarted(
WebView view, String url, Bitmap favicon) {
super.onPageStarted(view, url, favicon);
loadingFinished = false;
//SHOW LOADING IF IT ISNT ALREADY VISIBLE
}
#Override
public void onPageFinished(WebView view, String url) {
if(!redirect){
loadingFinished = true;
}
if(loadingFinished && !redirect){
//HIDE LOADING IT HAS FINISHED // HIDE YOUR SPLASH/LOADING VIEW
} else{
redirect = false;
}
}
});
}
/// below code ..
}

I've experienced this problem before and this is just a hack , but i had the same problem and for some reason that i'm still reading why but changing the web view from opening from a fragment to an activity made the white screen at the start of loading the web view went away.

"Unfortunately, has stopped" eclipse android avd

In the eclipse/android AVD, I get "Unfortunately, has stopped"
Help please.. here is the code
I just follow the other codes...
I tried everything I can I just don't know
what to do ...
help help help... not a total programmer ...
package com.somedomain.animatedinteractive;
import android.annotation.SuppressLint;
import android.app.Activity;
import android.graphics.Color;
import android.os.Bundle;
import android.webkit.WebSettings.PluginState;
import android.webkit.WebView;
public class MainActivity extends Activity {
WebView mWebView;
/** Called when the activity is first created. */
#SuppressLint("SetJavaScriptEnabled")
#SuppressWarnings("deprecation" )
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
mWebView = (WebView) findViewById(R.id.action_settings);
mWebView.getSettings().setJavaScriptEnabled(true);
mWebView.getSettings().setPluginState(PluginState.ON);
mWebView.loadUrl("file:///android_asset/Parable_Book.swf");
mWebView.setScrollBarStyle(WebView.SCROLLBARS_OUTSIDE_OVERLAY);
mWebView.setBackgroundColor(Color.parseColor("#000000"));
}
}
main.xml
<?xml version="1.0" encoding="utf-8"?>
<WebView xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/webview"
android:layout_width="fill_parent"
android:layout_height="fill_parent" />

Your main layout does not have a WebView with id action_settings. Change
mWebView = (WebView) findViewById(R.id.action_settings);
to
mWebView = (WebView) findViewById(R.id.webview);
Also, when getting an "unfortunately app has stopped" message, it's a good idea to have a look at the exception stacktrace in logcat. Include it in your question, too.

package com.somedomain.animatedinteractive;
import android.annotation.SuppressLint;
import android.app.Activity;
import android.graphics.Color;
import android.os.Bundle;
import android.webkit.WebSettings.PluginState;
import android.webkit.WebView;
public class MainActivity extends Activity {
WebView mWebView;
/** Called when the activity is first created. */
#SuppressLint("SetJavaScriptEnabled")
#SuppressWarnings("deprecation" )
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
mWebView = (WebView) findViewById(R.id.webview);
mWebView.getSettings().setJavaScriptEnabled(true);
mWebView.getSettings().setPluginState(PluginState.ON);
mWebView.loadUrl("file:///android_asset/Parable_Book.swf");
mWebView.setScrollBarStyle(WebView.SCROLLBARS_OUTSIDE_OVERLAY);
mWebView.setBackgroundColor(Color.parseColor("#000000"));
}
}
main.xml
<?xml version="1.0" encoding="utf-8"?>
<WebView xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/webview"
android:layout_width="fill_parent"
android:layout_height="fill_parent" />

How can I hide the URL bar from an Android browser

I want to hide the URL bar from the browser permanently, and it should not appear even if the person gets redirected from one page to another.
Here is my .java code:
package com.example.com.android.royalcastleapp;
import android.os.Bundle;
import android.app.Activity;
import android.view.Menu;
import android.view.MenuItem;
import android.view.Window;
import android.webkit.WebSettings;
import android.webkit.WebView;
import android.support.v4.app.NavUtils;
public class Bookinghome extends Activity {
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_bookinghome);
//Get a reference of WebView holder
WebView webview = (WebView) this.findViewById(R.id.webview);
//Get the settings
WebSettings websettings = webview.getSettings();
//Enable Javascript
websettings.setJavaScriptEnabled(true);
//Make the zoom controls visible
websettings.setBuiltInZoomControls(true);
//Load the default url.
webview.loadUrl("http//okRoom.aspx");
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.activity_bookinghome, menu);
return true;
}
}
And here is my layout:
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent" >
<WebView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerHorizontal="true"
android:layout_centerVertical="true"
android:padding="#dimen/padding_medium"
android:text="#string/hello_world"
tools:context=".Bookinghome"
android:id= "#+id/webview"/>
</RelativeLayout>
If anyone could suggest any changes I could make, that would be great!

Your application starts default browser.
You need to use WebViewClient.shouldOverrideUrlLoading like described here: https://stackoverflow.com/a/2379054/2183804

Android Webview scroll is misbehaving when loading a flash website

I am opening a simple flash based website in my webview using following code:
Java Code:
package com.sample.webview;
import android.app.Activity;
import android.app.ProgressDialog;
import android.graphics.Bitmap;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.webkit.WebView;
import android.webkit.WebViewClient;
import android.widget.Button;
public class SampleWebViewActivity extends Activity {
/** Called when the activity is first created. */
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
final WebView webView = (WebView) findViewById(R.id.webview);
final ProgressDialog progress = new ProgressDialog(this);
progress.setMessage("loading");
webView.getSettings().setJavaScriptEnabled(true);
webView.getSettings().setPluginsEnabled(true);
webView.getSettings().setBuiltInZoomControls(true);
webView.setWebViewClient(new WebViewClient() {
#Override
public void onPageStarted(WebView view, String url, Bitmap favicon) {
super.onPageStarted(view, url, favicon);
progress.show();
}
#Override
public void onPageFinished(WebView view, String url) {
super.onPageFinished(view, url);
progress.dismiss();
}
});
Button mButton = (Button) findViewById(R.id.button);
mButton.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View v) {
webView.loadUrl("http://www.fusioncharts.com/demos/features/#linkedcharts-for-easy-drill-down");
}
});
}
}
Main.xml:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical" >
<Button
android:id="#+id/button"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_margin="5dp"
android:text="Load URL" />
<WebView
android:id="#+id/webview"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_margin="5dp" />
</LinearLayout>
Now when the page is loaded completely and i am trying to scroll down to view rest of the content, the webview is coming on top of "Load URL" button. Check the screenshot:
while it should look like:
Please suggest, what should i do so that it works correctly.
Edit: I am using a Galaxy Note(OSv2.3.5) with the latest version of both Flash Player and Adobe Air installed.

I have also tried this things but I think the only solution to do this is by using only a single webview in your xml, so, you don't have other native controls.

This is really broken on Android. If you try to use the Build in topbar it will also go behind the flash. I'd really recommend you go away (far away) from flash. There is some discussions about it on google groups and some on stackoverflow but all ends without any good results. The only good suggestion I found was using flash to cover other flash components =/

Pop-Up Window at inital start up, of android application

I am trying to find a code that will do a popup at the initial start up on an installed app. Much like a changelog that is starting to appear in more and more apps.
I have found some similar codes, but being a beginner I haven't been able to figure out where to exactly put the code in and I always have tons of errors that still do not work once I try and fix them.
I am working in Eclipse with an android project, and I'm using a webview to show a website.
XML:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="fill_parent" android:layout_height="fill_parent">
<WebView xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/webview"
android:layout_height="fill_parent" android:layout_width="fill_parent" android:scrollbarAlwaysDrawVerticalTrack="false"/>
</LinearLayout>
Java File:
package com.A2Ddesigners.WhatThe;
import android.app.Activity;
import android.os.Bundle;
import android.webkit.WebView;
import android.webkit.WebViewClient;
import android.view.KeyEvent;
public class Whatthe extends Activity {
WebView webview;
/** Called when the activity is first created. */
#Override
public boolean onKeyDown(int keyCode, KeyEvent event) {
if ((keyCode == KeyEvent.KEYCODE_BACK) && webview.canGoBack()) {
webview.goBack();
return true;
}
return super.onKeyDown(keyCode, event);
}
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
webview = (WebView) findViewById(R.id.webview);
webview.setWebViewClient(new HelloWebViewClient());
webview.getSettings().setJavaScriptEnabled(true);
webview.setInitialScale(50);
webview.getSettings().setUseWideViewPort(true);
webview.loadUrl("http://mdsitest2.com/");
}
private class HelloWebViewClient extends WebViewClient {
#Override
public boolean shouldOverrideUrlLoading(WebView view, String url) {
view.loadUrl(url);
return true;
}
}
}

Using My this code you can show popup on any type of view on intial time of activity.
import android.app.Activity;
import android.os.Bundle;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.widget.LinearLayout;
import android.widget.PopupWindow;
public class PopupDispaly extends Activity {
private PopupWindow outComePopup;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_tiwter_login);
final View anyView = findViewById(R.id.popo_up); // define heade your view
anyView.postDelayed(new Runnable() {
#Override
public void run() {
callFirstToolTip(anyView);
}
}, 5000); // hear you can put your delay time like 5000 mls
}
public void callFirstToolTip(View view) {
Log.i("Started Info","popup");
View layout = LayoutInflater.from(PopupDispaly.this).inflate(R.layout.popup_copy_delete, null); // define hear your layout file id.
LinearLayout layCopyDelete = (LinearLayout) layout.findViewById(R.id.layCopyDelete);// hear define your id of sub lay like LinearLayout.
outComePopup = new PopupWindow(layout);
outComePopup.setFocusable(true);
layCopyDelete.measure(View.MeasureSpec.UNSPECIFIED, View.MeasureSpec.UNSPECIFIED);
outComePopup.setWidth(layCopyDelete.getMeasuredWidth());
outComePopup.setHeight(layCopyDelete.getMeasuredHeight());
outComePopup.setBackgroundDrawable(getResources().getDrawable(android.R.color.transparent));
outComePopup.setOutsideTouchable(true);
outComePopup.showAsDropDown(view);
}
}
And my Custome View layout file
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="#drawable/got_it_bg"
android:layout_gravity="center_horizontal"
android:id="#+id/layCopyDelete"
android:layout_marginLeft="100dp"
android:orientation="horizontal">
</LinearLayout>

Sounds like you should use a custom dialog box. http://developer.android.com/guide/topics/ui/dialogs.html
There's a code example at the bottom of the page. To show it, you can call onCreateDialog(int) from inside your main activity in its onCreate() method.

PopupWindow.showAsDropDown() in a delayed process can solve this problem, you can execute the show popupWindow in onCreate() method by 0.5s delay.

You should use PopupWindow.showAtLocation but use the post method of the one of the views on your activity. you can also use the root view of the activity using findViewById(android.R.id.content).
You code should look like this:
View anyView = findViewById(R.id.anyView);
anyView.post(new Runnable()
{
#Override
public void run()
{
// Create and show PopupWindow
}
});