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>
