Android Open Source - klarna-on-demand-android Web View Activity

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Back to project page klarna-on-demand-android.

License

The source code is released under:

Apache License

Java Source Code

package com.klarna.ondemand;
/*www .  j a  v a  2 s  .  c  o  m*/
import android.app.ActionBar;
import android.app.Activity;
import android.app.AlertDialog;
import android.app.ProgressDialog;
import android.content.DialogInterface;
import android.os.Bundle;
import android.view.MenuItem;
import android.webkit.WebView;
import android.webkit.WebViewClient;


public abstract class WebViewActivity extends Activity {

    private ProgressDialog progressDialog;
    private WebView webView;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);

        setContentView(R.layout.activity_webview);

        webView = initializeWebView();

        addSpinner();

        initializeActionBar();

        webView.loadUrl(getUrl());
    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        if(item.getItemId() == android.R.id.home) {
            finish();
        }

        return super.onOptionsItemSelected(item);
    }

    @Override
    public void onBackPressed() {
        showDismissAlert();
    }

    protected abstract String getUrl();

    private WebView initializeWebView() {
        WebView webView = (WebView) findViewById(R.id.webView);

        webView.getSettings().setJavaScriptEnabled(true);
        webView.clearCache(true);
        webView.setWebViewClient(new WebViewClient() {

            @Override
            public boolean shouldOverrideUrlLoading(WebView view, String url) {
                view.loadUrl(url);
                return false;
            }

            @Override
            public void onPageFinished(WebView view, String url) {
                progressDialog.dismiss();
            }
        });

        return webView;
    }
    
    private void addSpinner() {
        progressDialog = new ProgressDialog(WebViewActivity.this);
        progressDialog.setMessage(getString(R.string.LOADING_SPINNER));
        progressDialog.show();
    }

    private void initializeActionBar() {
        ActionBar actionBar = getActionBar();
        actionBar.setDisplayHomeAsUpEnabled(true);
        actionBar.setHomeButtonEnabled(true);
    }

    private void showDismissAlert() {
        final AlertDialog.Builder builder = new AlertDialog.Builder(this);
        builder.setTitle(this.getTitle());
        builder.setMessage(getString(R.string.DISMISS_ALERT_MESSAGE));
        builder.setCancelable(true);

        builder.setPositiveButton("Yes", new DialogInterface.OnClickListener() {
            public void onClick(DialogInterface dialog, int id) {
                finish();
            }
        });

        builder.setNegativeButton("No", new DialogInterface.OnClickListener() {
            public void onClick(DialogInterface dialog, int id) {
                dialog.cancel();
            }
        });

        AlertDialog alert = builder.create();
        alert.show();
    }
}

Java Source Code List

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