This code is working for me.....
Here, no need to ask storage permissions to the user....
package app.qarya.in.upsc4u.questions.answers;
import android.annotation.SuppressLint;
import android.app.NotificationChannel;
import android.app.NotificationManager;
import android.app.ProgressDialog;
import android.content.ActivityNotFoundException;
import android.content.DialogInterface;
import android.content.Intent;
import android.content.pm.ActivityInfo;
import android.net.Uri;
import android.os.Build;
import android.os.Bundle;
import android.os.Handler;
import android.support.annotation.NonNull;
import android.support.annotation.Nullable;
import android.support.annotation.RequiresApi;
import android.support.v4.widget.SwipeRefreshLayout;
import android.support.v7.app.AlertDialog;
import android.support.v7.app.AppCompatActivity;
import android.view.KeyEvent;
import android.view.View;
import android.webkit.ValueCallback;
import android.webkit.WebChromeClient;
import android.webkit.WebView;
import android.webkit.WebViewClient;
import android.widget.FrameLayout;
import android.widget.ProgressBar;
import android.widget.Toast;
import com.google.android.gms.ads.AdListener;
import com.google.android.gms.ads.AdRequest;
import com.google.android.gms.ads.AdView;
import com.google.android.gms.ads.InterstitialAd;
import com.google.android.gms.ads.MobileAds;
import com.google.android.gms.tasks.OnCompleteListener;
import com.google.android.gms.tasks.Task;
public class WebPageMain extends AppCompatActivity implements SwipeRefreshLayout.OnRefreshListener {
String webAddress = "https://qarya.in/";
public static final int REQUEST_SELECT_FILE = 100;
WebView webView;
ProgressBar progressBar;
FrameLayout frameLayout;
SwipeRefreshLayout swipeRefreshLayout;
ProgressDialog pd;
static int count=0;
AdView adView;
AdRequest adRequest;
InterstitialAd interstitialAd;
private ValueCallback uploadMessage;
@Override
protected void onCreate(@Nullable Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.web_page);
setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_PORTRAIT);
MobileAds.initialize(this, "ca-app-pub-3940256099942544~3347511713");
pd = new ProgressDialog(this);
pd.setMessage("Loading please wait...");
pd.show();
swipeRefreshLayout = findViewById(R.id.srl);
swipeRefreshLayout.setOnRefreshListener(this);
frameLayout = findViewById(R.id.framLayout);
progressBar = findViewById(R.id.progressBar);
assert webView != null;
progressBar.setMax(100);
webView = findViewById(R.id.webView);
webView.setWebViewClient(new Callback());
webView.getSettings().setJavaScriptEnabled(true);
webView.setVerticalFadingEdgeEnabled(false);
webView.loadUrl(webAddress);
progressBar.setProgress(0);
adView = findViewById(R.id.adView);
adRequest = new AdRequest.Builder().build();
//adView.loadAd(adRequest);
interstitialAd = new InterstitialAd(this);
interstitialAd.setAdUnitId(getResources().getString(R.string.inter));
//interstitialAd.loadAd(adRequest);
//showInterAd();
webView.setWebChromeClient(new WebChromeClient() {
public void onProgressChanged(WebView webView,int progress)
{
frameLayout.setVisibility(View.VISIBLE);
progressBar.setProgress(progress);
//setTitle("Loading...");
if(progress==100)
{
frameLayout.setVisibility(View.GONE);
pd.dismiss();
//setTitle(webView.getTitle());
}
else if(progress==70)
{
pd.dismiss();
count+=1;
if(count%5==0) {
interstitialAd.loadAd(adRequest);
showInterAd();
}
adView.loadAd(adRequest);
}
//Log.d("progress",progress+"");
super.onProgressChanged(webView,progress);
}
@RequiresApi(api = Build.VERSION_CODES.LOLLIPOP)
public boolean onShowFileChooser(WebView webView, ValueCallback filePathCallback, FileChooserParams fileChooserParams) {
// make sure there is no existing message
if (uploadMessage != null) {
uploadMessage.onReceiveValue(null);
uploadMessage = null;
}
uploadMessage = filePathCallback;
Intent intent = fileChooserParams.createIntent();
try {
startActivityForResult(intent, REQUEST_SELECT_FILE);
} catch (ActivityNotFoundException e) {
uploadMessage = null;
Toast.makeText(getApplicationContext(), "Cannot open file chooser", Toast.LENGTH_LONG).show();
return false;
}
return true;
}
});
}
@SuppressLint("NewApi")
protected void onActivityResult(int requestCode, int resultCode, Intent data){
if (requestCode == REQUEST_SELECT_FILE) {
if (uploadMessage == null) return;
uploadMessage.onReceiveValue(WebChromeClient.FileChooserParams.parseResult(resultCode, data));
uploadMessage = null;
}
}
@Override
public void onRefresh() {
webView.reload();
swipeRefreshLayout.setRefreshing(false);
//adView.loadAd(adRequest);
}
void showInterAd()
{
interstitialAd.setAdListener(new AdListener(){
@Override
public void onAdLoaded() {
if(interstitialAd.isLoaded())
interstitialAd.show();
}
});
}
@Override
public boolean onKeyDown(int keyCode, KeyEvent event) {
if(keyCode== KeyEvent.KEYCODE_BACK)
{
if(webView.canGoBack()) {
webView.goBack();
adView.loadAd(adRequest);
}else
{
final AlertDialog alert = new AlertDialog.Builder(this).create();
alert.setTitle("Exit");
alert.setMessage("Are You Sure you want to Exit.");
alert.setButton(AlertDialog.BUTTON_POSITIVE,"Yes", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
finish();
}
});
alert.setButton(AlertDialog.BUTTON_NEGATIVE,"Cancel", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
alert.dismiss();
}
});
alert.setButton(AlertDialog.BUTTON_NEUTRAL, "Home", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
webView.loadUrl("https://qarya.in/");
alert.dismiss();
}
});
alert.show();
}
return true;
}
return super.onKeyDown(keyCode, event);
}
// Open previous opened link from history on webview when back button pressed
@Override
// Detect when the back button is pressed
public void onBackPressed() {
if(webView.canGoBack()) {
webView.goBack();
} else {
// Let the system handle the back button
super.onBackPressed();
}
}
public class Callback extends WebViewClient {
@Override
public boolean shouldOverrideUrlLoading(WebView view, String url) {
pd.dismiss();
if(!url.contains("qarya") || url.contains("facebook.com") || url.contains("twitter.com") || url.contains("linkedin.com") ||url.contains("whatsapp.com"))
{
Intent intent = new Intent(Intent.ACTION_VIEW, Uri.parse(url));
startActivity(intent);
}
else
{
view.loadUrl(url);
}
return true;
}
public void onReceivedError(WebView view, int errorCode, String description, String failingUrl) {
Toast.makeText(getApplicationContext(), "Failed loading app!", Toast.LENGTH_SHORT).show();
pd.dismiss();
}
}
}
加载中...