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MainActivity.java
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MainActivity.java
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package com.boxmeup.app;
import android.app.Activity;
import android.app.AlertDialog;
import android.content.Context;
import android.content.DialogInterface;
import android.content.Intent;
import android.net.http.SslError;
import android.os.Bundle;
import android.view.KeyEvent;
import android.view.Menu;
import android.view.MenuInflater;
import android.view.MenuItem;
import android.view.View;
import android.webkit.JsResult;
import android.webkit.SslErrorHandler;
import android.webkit.WebChromeClient;
import android.webkit.WebView;
import android.webkit.WebViewClient;
import android.widget.ImageView;
import android.widget.Toast;
import com.boxmeup.app.scans.QrScanResult;
import com.boxmeup.app.scans.ScanResult;
import com.boxmeup.app.scans.UpcScanResult;
import com.google.zxing.integration.android.IntentIntegrator;
import com.google.zxing.integration.android.IntentResult;
public class MainActivity extends Activity {
WebView mWebView;
ImageView mImageView;
boolean loggedIn = false;
private String currentContainerSlug;
final Context boxmeupApp = this;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
mWebView = (WebView) findViewById(R.id.webview);
mImageView = (ImageView) findViewById(R.id.imageview);
mWebView.getSettings().setJavaScriptEnabled(true);
mWebView.loadUrl(getString(R.string.url_source));
mWebView.setWebViewClient(new BoxmeupWebViewClient());
mWebView.setWebChromeClient(new BoxmeupWebChromeClient());
// Initialize the javascript interface
mWebView.addJavascriptInterface(new BoxmeupJavascriptInterface(this), getString(R.string.javascript_interface));
}
@Override
public boolean onKeyDown(int keyCode, KeyEvent event) {
if ((keyCode == KeyEvent.KEYCODE_BACK) && mWebView.canGoBack()) {
mWebView.goBack();
return true;
}
return super.onKeyDown(keyCode, event);
}
@Override
public void onActivityResult(int requestCode, int resultCode, Intent intent) {
IntentResult scanResult = IntentIntegrator.parseActivityResult(requestCode, resultCode, intent);
String contents = null, scanFormat = null;
ScanResult result = null;
if (scanResult != null) {
scanFormat = scanResult.getFormatName();
contents = scanResult.getContents();
if("UPC_A".equals(scanFormat)) {
result = new UpcScanResult(this);
result.processResult(scanResult);
} else {
result = new QrScanResult(this);
result.processResult(scanResult);
}
}
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
MenuInflater inflater = getMenuInflater();
inflater.inflate(R.menu.scan_menu, menu);
return true;
}
@Override
public boolean onMenuOpened(int featureId, Menu menu) {
return loggedIn;
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
// Handle item selection
switch (item.getItemId()) {
case R.id.qr_scan:
IntentIntegrator.initiateScan(this,
IntentIntegrator.DEFAULT_TITLE,
IntentIntegrator.DEFAULT_MESSAGE,
IntentIntegrator.DEFAULT_YES,
IntentIntegrator.DEFAULT_NO,
"QR_CODE"
);
return true;
case R.id.upc_scan:
IntentIntegrator.initiateScan(this,
IntentIntegrator.DEFAULT_TITLE,
IntentIntegrator.DEFAULT_MESSAGE,
IntentIntegrator.DEFAULT_YES,
IntentIntegrator.DEFAULT_NO,
"UPC_A"
);
return true;
default:
return super.onOptionsItemSelected(item);
}
}
public WebView getWebView() {
return this.mWebView;
}
public String getValidUrlHost() {
return getString(R.string.valid_host);
}
public String getUrlSource() {
return getString(R.string.url_source);
}
public String getCurrentContainerSlug() {
return currentContainerSlug;
}
/**
* Nested class that controls webview specific events
*/
private class BoxmeupWebViewClient extends WebViewClient {
/**
* Keeps clicked links and submitted forms from opening the default browser app.
*
* @param view
* @param url
* @return true
*/
@Override
public boolean shouldOverrideUrlLoading(WebView view, String url) {
view.loadUrl(url);
return true;
}
/**
* Since this is mostly an internal app, a verified cert isn't available, therefore
* ignore SSL warnings and errors.
*
* @param view
* @param handler
* @param error
*/
@Override
public void onReceivedSslError (WebView view, SslErrorHandler handler, SslError error) {
handler.proceed() ;
}
/**
* Responsible for hiding the splash screen and making the main browser view visible.
*
* @param view
* @param url
*/
@Override
public void onPageFinished(WebView view, String url) {
mImageView.setVisibility(View.GONE);
view.setVisibility(View.VISIBLE);
}
}
/**
* Nested class that controls webview chrome events.
*/
private class BoxmeupWebChromeClient extends WebChromeClient {
/**
* Handle a webview's JS confirm dialog
*/
@Override
public boolean onJsConfirm(WebView view, String url, String message, final JsResult result) {
new AlertDialog.Builder(boxmeupApp)
.setTitle(R.string.app_name)
.setMessage(message)
.setPositiveButton(android.R.string.ok, new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
result.confirm();
}
})
.setNegativeButton(android.R.string.cancel, new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
result.cancel();
}
})
.create()
.show();
return true;
}
}
/**
* Javascript interface that allows the web application to talk to the
* android app.
*/
private class BoxmeupJavascriptInterface {
Context mContext;
BoxmeupJavascriptInterface(Context c) {
mContext = c;
}
/** Show a toast from the web page */
public void showToast(String toast) {
Toast.makeText(mContext, toast, Toast.LENGTH_SHORT).show();
}
public void qrScan() {
IntentIntegrator.initiateScan((Activity) mContext);
}
public void setCurrentContainerSlug(String slug) {
currentContainerSlug = slug;
}
public void clearHistory() {
mWebView.clearHistory();
loggedIn = false;
}
public void loggedIn() {
loggedIn = true;
}
}
}