ig4

package com.kampuskoding.browsersederhana;

import android.os.Bundle;
import android.support.design.widget.FloatingActionButton;
import android.support.design.widget.Snackbar;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.Toolbar;
import android.view.KeyEvent;
import android.view.View;
import android.view.Menu;
import android.view.MenuItem;
import android.webkit.WebChromeClient;
import android.webkit.WebView;
import android.webkit.WebViewClient;
import android.widget.Button;
import android.widget.EditText;
import android.widget.ProgressBar;

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;

public class MainActivity extends AppCompatActivity {
    // deklarasi
    private WebView webv;
    private EditText txturl;
    private Button btncari;
    ProgressBar pg;

    private AdView mAdView;
    private InterstitialAd interstitial;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        // inisialisasi
        webv = (WebView) findViewById(R.id.webv);
        txturl = (EditText) findViewById(R.id.txturl);
        btncari = (Button) findViewById(R.id.btncari);


        mAdView = (AdView) findViewById(R.id.adView);
        mAdView.loadAd(new AdRequest.Builder().build());

        // Menyiapkan iklah untuk Interstitial Ad
        interstitial = new InterstitialAd(MainActivity.this);

        // Masukan ID iklan
        interstitial.setAdUnitId(getString(R.string.admob_interstitial_id));
        AdRequest adRequest = new AdRequest.Builder().build();
        // Muat Iklan Interstisial
        interstitial.loadAd(adRequest);
        // Persiapkan Iklan Interstisial
        interstitial.setAdListener(new AdListener() {
            public void onAdLoaded() {
                // Call displayInterstitial() function
                displayInterstitial();
            }
        });

        // siapkan urlnya
        String url = "https://www.instagram.com/";
        // inisialisasi kebutuhan browser


        webv.getSettings().setJavaScriptEnabled(true); // untuk mendukung java script
        webv.getSettings().setDisplayZoomControls(true); // mengontrol zoom pada browser
        webv.getSettings().setLoadWithOverviewMode(true); //otomatis load zoom
        webv.getSettings().setUseWideViewPort(true); // memberi tahu browser untuk mengaktifkan Wide Viewport
        webv.getSettings().setJavaScriptCanOpenWindowsAutomatically(true); //otomatis menampilkan java script window
        webv.setScrollBarStyle(WebView.SCROLLBARS_OUTSIDE_OVERLAY);
        webv.getSettings().setAllowFileAccessFromFileURLs(true);
        webv.getSettings().setAllowUniversalAccessFromFileURLs(true);

        pg = (ProgressBar)findViewById(R.id.progressBar4);
        webv.setWebChromeClient(new WebChromeClient(){
            @Override
            public void onProgressChanged(WebView view, int newProgress) {
                pg.setVisibility(View.VISIBLE);
                pg.setProgress(newProgress);
                if (newProgress == 100){
                    pg.setVisibility(View.GONE);
                }
            }
        });

        webv.loadUrl(url);
        webv.setWebViewClient(new MyWebLaunch());


        btncari.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                String url = txturl.getText().toString();
                // aktifkan java script
                webv.getSettings().setJavaScriptEnabled(true);
                webv.getSettings().setDisplayZoomControls(true);
                pg = (ProgressBar)findViewById(R.id.progressBar4);
                webv.setWebChromeClient(new WebChromeClient(){
                    @Override
                    public void onProgressChanged(WebView view, int newProgress) {
                        pg.setVisibility(View.VISIBLE);
                        pg.setProgress(newProgress);
                        if (newProgress == 100){
                            pg.setVisibility(View.GONE);
                        }
                    }
                });

                webv.loadUrl(url);
                webv.setWebViewClient(new MyWebLaunch());
            }
        });
    }

    private class MyWebLaunch extends WebViewClient {
        @Override
        public boolean shouldOverrideUrlLoading(WebView view, String url) {
            view.loadUrl(url);
            return super.shouldOverrideUrlLoading(view, url);
        }
    }

    @Override
    public boolean onKeyDown(int keyCode, KeyEvent event) {
        if (event.getAction() == KeyEvent.ACTION_DOWN){
            switch (keyCode){
                case KeyEvent.KEYCODE_BACK :
                    if (webv.canGoBack()){
                        webv.goBack();
                    }else {
                        finish();
                    }
                    return true;
            }
        }

        return super.onKeyDown(keyCode, event);
    }

    public void displayInterstitial() {
        // If Ads are loaded, show Interstitial else show nothing.
        if (interstitial.isLoaded()) {
            interstitial.show();
        }
    }

}