Issue
I am trying to implement a progress bar, that appears when loading the page and disappears when the page is finished loading. I have added on finish parameter but it seems that it is not being recognized.
Code
package com.test;
import org.json.JSONException;
import org.json.JSONObject;
import android.app.Activity;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.os.Bundle;
import android.support.v4.content.LocalBroadcastManager;
import android.util.Log;
import android.view.KeyEvent;
import android.view.Menu;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.Window;
import android.webkit.WebSettings;
import android.webkit.WebView;
import android.webkit.WebViewClient;
import android.widget.Button;
import android.widget.Toast;
import com.parse.ParseInstallation;
import com.parse.ParsePush;
import com.parse.ParseQuery;
import com.parse.PushService;
public class MainActivity extends Activity implements OnClickListener {
private Button push;
private BroadcastReceiver mBroadcastReceiver new BroadcastReceiver() {
@Override
public void onReceive(Context context, Intent intent) {
Toast.makeText(getApplicationContext(), "onReceive invoked!", Toast.LENGTH_LONG).show();
}
};
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
requestWindowFeature(Window.FEATURE_INDETERMINATE_PROGRESS);
setProgressBarIndeterminateVisibility(true);
setContentView(R.layout.activity_main);
PushService.setDefaultPushCallback(this, MainActivity.class);
WebView webView (WebView) findViewById(R.id.webView1);;
webView.getSettings().setJavaScriptEnabled(true);
webView.loadUrl("http://www.teqez.com/xx/ ");
webView.setWebViewClient(new WebViewClient());
webView.getSettings().setBuiltInZoomControls(false);
push (Button)findViewById(R.id.senPushB);
push.setOnClickListener(this);
}
private class HelloWebViewClient extends WebViewClient{
@Override
public boolean shouldOverrideUrlLoading(WebView webview, String url){
webview.loadUrl(url);
setProgressBarIndeterminateVisibility(true);
return true;
}
@Override
public void onPageFinished(WebView webview, String url){
super.onPageFinished(webview, url);
setProgressBarIndeterminateVisibility(false);
}
}
private class Callback extends WebViewClient {
@Override
public boolean shouldOverrideUrlLoading(WebView view, String url) {
return (true);
}
}
@Override
public void onBackPressed()
{
WebView webView (WebView) findViewById(R.id.webView1);
if(webView.canGoBack()){
webView.goBack();
}else{
super.onBackPressed();
}
}
@Override
public void onPause() {
super.onPause();
LocalBroadcastManager.getInstance(this).unregisterReceiver(mBroadcastReceiver);
}
@Override
public void onResume() {
super.onResume();
LocalBroadcastManager.getInstance(this).registerReceiver(mBroadcastReceiver, new IntentFilter(MyCustomReceiver.intentAction));
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.activity_main, menu);
return true;
}
@Override
public void onClick(View v) {
JSONObject obj;
try {
obj new JSONObject();
obj.put("alert", "hello!");
obj.put("action", MyCustomReceiver.intentAction);
obj.put("customdata","My message");
ParsePush push new ParsePush();
ParseQuery query ParseInstallation.getQuery();
// Push the notification to Android users
query.whereEqualTo("deviceType", "android");
push.setQuery(query);
push.setData(obj);
push.sendInBackground();
} catch (JSONException e) {
e.printStackTrace();
}
}
}
Layout
<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"
tools:context".MainActivity" >
<Button
android:id"@+id/senPushB"
android:layout_width"wrap_content"
android:layout_height"wrap_content"
android:layout_alignParentEnd"true"
android:layout_alignParentStart"true"
android:layout_alignParentTop"true"
android:background"@drawable/ic_launcher"
android:text"Check For Updates" />
<WebView
android:id"@+id/webView1"
android:layout_width"wrap_content"
android:layout_height"wrap_content"
android:layout_alignParentBottom"true"
android:layout_alignParentEnd"true"
android:layout_alignParentLeft"true"
android:layout_alignParentRight"true"
android:layout_alignParentStart"true"
android:layout_alignParentTop"true"
android:clickable"true"
android:focusable"true" />
<LinearLayout
android:layout_width"fill_parent"
android:layout_height"fill_parent"
android:orientation"vertical" >
<ProgressBar
android:id"@+id/progressBar"
style"?android:attr/progressBarStyleLarge"
android:layout_width"wrap_content"
android:layout_height"wrap_content" />
</LinearLayout>
</RelativeLayout>
Solution
You do not invoke your custom private class
Change
webView.setWebViewClient(new WebViewClient());
to
webView.setWebViewClient(new HelloWebViewClient());
Answered By – IAmGroot