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Android Studio Webview in a Fragment shows nothing and empty

I wish to implement a webview in the fragment_home_screen without covering the BottomNavigationView. However, even I followed everything on an online tutorial by setting up the webview in the Fragment_Home.java onCreateView() method. Nothing has showed up. I tried adding a button in the fragment_home_screen.xml to ensure the fragment DID showed up. It ended up showing the BUTTON ONLY.
I have been trying to fix this issues for hours and still couldn't figuring what's wrong with my code. Got any idea?
AndroidManifest.xml
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="android.exercise.myApplication">
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
<uses-permission android:name="android.permission.INTERNET" />
<application
android:allowBackup="true"
android:icon="#mipmap/ic_launcher"
android:label="#string/app_name"
android:roundIcon="#mipmap/ic_launcher_round"
android:supportsRtl="true"
android:theme="#style/Theme.AppCompat.Light.NoActionBar">
<activity
android:name=".Activity_Map"
android:exported="false"
android:label="#string/title_activity_map" />
<activity
android:name=".Activity_Login"
android:exported="false" />
<activity
android:name=".Activity_SignUp"
android:exported="false" />
<activity
android:name=".Activity_Home"
android:exported="false"
android:label="Main" />
<activity
android:name=".SplashScreen"
android:exported="true">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
</manifest>
Activity_Home.java
package android.exercise.myApplication;
import android.os.Bundle;
import android.view.MenuItem;
import android.view.View;
import android.webkit.WebView;
import android.webkit.WebViewClient;
import androidx.annotation.NonNull;
import androidx.appcompat.app.AppCompatActivity;
import androidx.fragment.app.Fragment;
import com.google.android.material.bottomnavigation.BottomNavigationView;
public class Activity_Home extends AppCompatActivity {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main_menu);
BottomNavigationView bottomNav = findViewById(R.id.bottomNavigationView);
bottomNav.setOnNavigationItemSelectedListener(navListener);
getSupportFragmentManager().beginTransaction().replace(R.id.fragment_container,
new HomeFragment()).commit();
}
private BottomNavigationView.OnNavigationItemSelectedListener navListener =
new BottomNavigationView.OnNavigationItemSelectedListener(){
#Override
public boolean onNavigationItemSelected(#NonNull MenuItem item) {
Fragment selectFragment = null;
switch(item.getItemId()){
case R.id.homeScreen:
selectFragment = new HomeFragment();
break;
case R.id.userScreen:
selectFragment = new Fragment_User();
break;
case R.id.driverScreen:
selectFragment = new Fragment_Driver();
break;
}
getSupportFragmentManager().beginTransaction().replace(R.id.fragment_container, selectFragment).commit();
return true;
}
};
}
Fragment_Home.java
package android.exercise.myApplication;
import android.os.Bundle;
import androidx.fragment.app.Fragment;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.webkit.WebSettings;
import android.webkit.WebView;
import android.webkit.WebViewClient;
/**
* A simple {#link Fragment} subclass.
* Use the {#link Fragment_Home#newInstance} factory method to
* create an instance of this fragment.
*/
public class Fragment_Home extends Fragment {
// TODO: Rename parameter arguments, choose names that match
// the fragment initialization parameters, e.g. ARG_ITEM_NUMBER
private static final String ARG_PARAM1 = "param1";
private static final String ARG_PARAM2 = "param2";
// TODO: Rename and change types of parameters
private String mParam1;
private String mParam2;
public Fragment_Home() {
// Required empty public constructor
}
/**
* Use this factory method to create a new instance of
* this fragment using the provided parameters.
*
* #param param1 Parameter 1.
* #param param2 Parameter 2.
* #return A new instance of fragment Fragment_Home.
*/
// TODO: Rename and change types and number of parameters
public static Fragment_Home newInstance(String param1, String param2) {
Fragment_Home fragment = new Fragment_Home();
Bundle args = new Bundle();
args.putString(ARG_PARAM1, param1);
args.putString(ARG_PARAM2, param2);
fragment.setArguments(args);
return fragment;
}
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
if (getArguments() != null) {
mParam1 = getArguments().getString(ARG_PARAM1);
mParam2 = getArguments().getString(ARG_PARAM2);
}
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
String url = "https://pastebin.com/";
View v = inflater.inflate(R.layout.fragment_home_screen, container, false);
WebView myWebview = (WebView) v.findViewById(R.id.webview);
myWebview.getSettings().setJavaScriptEnabled(true);
myWebview.getSettings().setDomStorageEnabled(true);
myWebview.setWebViewClient(new WebViewClient());
myWebview.loadUrl("https://en.wikipedia.org/");
myWebview.setWebViewClient(
new SSLWebViewClient()
);
myWebview.clearView();
myWebview.measure(100, 100);
myWebview.getSettings().setUseWideViewPort(true);
myWebview.getSettings().setLoadWithOverviewMode(true);
return v;
}
}
activity_main_menu.xml
<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".Activity_Home" >
<com.google.android.material.bottomnavigation.BottomNavigationView
android:id="#+id/bottomNavigationView"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#color/white"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:menu="#menu/bottom_menu"/>
<FrameLayout
android:id="#+id/fragment_container"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_above="#id/fragment_container"
tools:layout_editor_absoluteX="0dp"
tools:layout_editor_absoluteY="0dp" />
</androidx.constraintlayout.widget.ConstraintLayout>
fragment_home_screen.xml
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".Fragment_Home">
<WebView
android:id="#+id/webview"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toTopOf="parent">
</WebView>
<Button
android:id="#+id/button"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Button"
app:layout_constraintStart_toStartOf="#+id/webview"
app:layout_constraintTop_toTopOf="#+id/webview" />
</RelativeLayout>
As for the logcat, filtered with warnings there's only one line of error:
022-01-19 21:45:53.557 7053-7053/android.exercise.myApplication E/chromium: [ERROR:gl_surface_egl.cc(549)] eglChooseConfig failed with error EGL_SUCCESS

I tried your code and it works fine you just need to comment out some code in Fragment_Home.java as below:
#Override
public View onCreateView(....){
.....
..........
//remove or comment this part.
// myWebView.setWebViewClient(new SSLWebViewClient());
.....
}

Error when try to add map inside fragement TAB

I am try to add map inside fragment tab. My google map normally works. But when i use map inside tab fragment child then get exception:
android.view.InflateException: Binary XML file line #6: Error inflating class fragment
I want to add map in TAB2
MainActivity.java
import android.os.Bundle;
import android.support.design.widget.TabLayout;
import android.support.v4.view.ViewPager;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.Toolbar;
import android.widget.TextView;
public class MainActivity extends AppCompatActivity {
private Toolbar toolbar;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
toolbar = (Toolbar) findViewById(R.id.app_bar);
toolbar.setTitle("");
TextView mTitle = (TextView) toolbar.findViewById(R.id.toolbar_title);
mTitle.setText("Chili's");
setSupportActionBar(toolbar);
TabLayout tabLayout = (TabLayout) findViewById(R.id.tab_layout);
tabLayout.addTab(tabLayout.newTab().setIcon(R.drawable.ic_restaurant_white).setText("Menu"));
tabLayout.addTab(tabLayout.newTab().setIcon(R.drawable.ic_place_white).setText("Map"));;
tabLayout.addTab(tabLayout.newTab().setIcon(R.drawable.ic_thumb_up_white).setText("Facebook"));
tabLayout.addTab(tabLayout.newTab().setIcon(R.drawable.ic_info_white).setText("About"));
tabLayout.setTabGravity(TabLayout.GRAVITY_FILL);
final ViewPager viewPager = (ViewPager) findViewById(R.id.pager);
final PagerAdapter adapter = new PagerAdapter
(getSupportFragmentManager(), tabLayout.getTabCount());
viewPager.setAdapter(adapter);
viewPager.addOnPageChangeListener(new TabLayout.TabLayoutOnPageChangeListener(tabLayout));
tabLayout.setOnTabSelectedListener(new TabLayout.OnTabSelectedListener() {
#Override
public void onTabSelected(TabLayout.Tab tab) {
viewPager.setCurrentItem(tab.getPosition());
}
#Override
public void onTabUnselected(TabLayout.Tab tab) {
}
#Override
public void onTabReselected(TabLayout.Tab tab) {
}
});
}
}
activity_maps.xml
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:id="#+id/home_root"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical">
<RelativeLayout
android:layout_width="wrap_content"
android:layout_height="fill_parent"
android:layout_gravity="center"
android:gravity="center">
<fragment
android:id="#+id/map"
android:name="com.google.android.gms.maps.MapFragment"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:name="com.chilis.chilis.Maps" />
</RelativeLayout>
</LinearLayout>
Map.class
import android.app.Activity;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentActivity;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import com.google.android.gms.maps.CameraUpdateFactory;
import com.google.android.gms.maps.GoogleMap;
import com.google.android.gms.maps.OnMapReadyCallback;
import com.google.android.gms.maps.SupportMapFragment;
import com.google.android.gms.maps.model.LatLng;
import com.google.android.gms.maps.model.MarkerOptions;
public class Maps extends Fragment implements OnMapReadyCallback {
private GoogleMap mMap;
private FragmentActivity myContext;
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.activity_maps, container, false);
SupportMapFragment mapFragment = (SupportMapFragment) myContext.getSupportFragmentManager() //error
.findFragmentById(R.id.map);
mapFragment.getMapAsync(this); //error
return rootView;
}
#Override
public void onMapReady(GoogleMap googleMap) {
mMap = googleMap;
// Add a marker in Sydney and move the camera
LatLng sydney = new LatLng(-34, 151);
mMap.addMarker(new MarkerOptions().position(sydney).title("Marker in Sydney"));
mMap.moveCamera(CameraUpdateFactory.newLatLng(sydney));
}
#Override
public void onAttach(Activity activity) {
myContext=(FragmentActivity) activity;
super.onAttach(activity);
}
}
AndroidManifest.xml
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="--------------">
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
<application
android:allowBackup="true"
android:icon="#mipmap/ic_launcher"
android:label="#string/app_name"
android:supportsRtl="true"
android:theme="#style/AppTheme">
<activity
android:name=".SplashActivity"
android:screenOrientation="portrait"
android:theme="#android:style/Theme.Light.NoTitleBar.Fullscreen">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity android:name=".MainActivity" />
<meta-data
android:name="com.google.android.geo.API_KEY"
android:value="#string/google_maps_key" />
</application>

Check that in your activity_maps.xml file you are not missing the end tag of LinearLayout: </ LinearLayout>.

I found the solution. The problem was Fragment Context is not found properly.
There are the some change on Map.java class
public class MapsActivity extends Fragment implements OnMapReadyCallback {
private GoogleMap mMap;
public static MapsActivity newInstance() {
MapsActivity fragment = new MapsActivity();
return fragment;
}
#Nullable
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.activity_maps, null, false);
SupportMapFragment mapFragment = (SupportMapFragment) this.getChildFragmentManager()
.findFragmentById(R.id.map);
mapFragment.getMapAsync(this);
return view;
}
/**
* Manipulates the map once available.
* This callback is triggered when the map is ready to be used.
* This is where we can add markers or lines, add listeners or move the camera. In this case,
* we just add a marker near Sydney, Australia.
* If Google Play services is not installed on the device, the user will be prompted to install
* it inside the SupportMapFragment. This method will only be triggered once the user has
* installed Google Play services and returned to the app.
*/
#Override
public void onMapReady(GoogleMap googleMap) {
mMap = googleMap;
// Add a marker in Sydney and move the camera
LatLng sydney = new LatLng(-34, 151);
mMap.addMarker(new MarkerOptions().position(sydney).title("Marker in Sydney"));
mMap.moveCamera(CameraUpdateFactory.newLatLng(sydney));
}
}

cannot use SessionLoginBehaviour SSO_WITH_FALLBACK

Even after defining com.facebook.LoginActivity in my AndroidManifest.xml file the logcat gives the same error and asks to define com.facebook.LoginActivity as activity. I have followed this https://developers.facebook.com/docs/android/login-with-facebook/v2.2#step2 tutorial.
Here is my androidmanifest.xml
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.log"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk
android:minSdkVersion="8"
android:targetSdkVersion="19" />
<uses-permission android:name="android.permission.INTERNET" />
<application
android:allowBackup="true"
android:icon="#drawable/ic_launcher"
android:label="#string/app_name"
android:theme="#style/AppTheme" >
<activity
android:name="com.example.log.MainActivity"
android:label="#string/app_name" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<meta-data
android:name="com.facebook.sdk.ApplicationId"
android:value="#string/facebook_app_id" />
<activity
android:name="com.facebook.loginActivity"
android:label="#string/app_name" >
</activity>
</application>
</manifest>
MainActivity.java
package com.example.log;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentActivity;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.ViewGroup;
public class MainActivity extends FragmentActivity {
private MainFragment mainFragment;
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
// setContentView(R.layout.fragment_main);
if (savedInstanceState == null) {
// Add the fragment on initial activity setup
mainFragment = new MainFragment();
getSupportFragmentManager()
.beginTransaction()
.add(android.R.id.content, mainFragment)
.commit();
} else {
// Or set the fragment from restored state info
mainFragment = (MainFragment) getSupportFragmentManager()
.findFragmentById(android.R.id.content);
}
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.main, menu);
return true;
}
#Override
public boolean onOptionsItemSelected(MenuItem item) {
// Handle action bar item clicks here. The action bar will
// automatically handle clicks on the Home/Up button, so long
// as you specify a parent activity in AndroidManifest.xml.
int id = item.getItemId();
if (id == R.id.action_settings) {
return true;
}
return super.onOptionsItemSelected(item);
}
/**
* A placeholder fragment containing a simple view.
*/
public static class MainFragment extends Fragment {
#Override
public View onCreateView(LayoutInflater inflater,
ViewGroup container,
Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.fragment_main, container, false);
return view;
}
}
}
fragment_main.xml file
<LinearLayout 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"
android:orientation="vertical">
<com.facebook.widget.LoginButton
android:id="#+id/authButton"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center_horizontal"
android:layout_marginTop="30dp"
/>
</LinearLayout>

The facebook login activity is com.facebook.LoginActivity with a capital 'L'. You're using a lower case l.

set the tabbar bottom on android all activities

i have develop one android application.
Here i have to set the tabbar bottom on all android activities.how can i do.please give me solution for these.
i have totally 10 activities means the tabbar is show on botton on all 10 activities.how can i do in android.please help me.
These is my 1st activity:
setContentView(R.layout.tabbar);
TabHost tabHost = getTabHost();
TabHost.TabSpec spec;
Intent intent;
TabSpec dbspec = tabHost.newTabSpec("Home");
dbspec.setIndicator("Home", getResources().getDrawable(R.drawable.home));
Intent dbIntent = new Intent(this, MainActivity.class);
dbspec.setContent(dbIntent);
tabHost.addTab(dbspec);
TabSpec orderspec = tabHost.newTabSpec("Cart");
orderspec.setIndicator("Cart", getResources().getDrawable(R.drawable.cart));
Intent orderIntent = new Intent(this, ViewCartActivity.class);
orderspec.setContent(orderIntent);
tabHost.addTab(orderspec);
TabSpec settingspec = tabHost.newTabSpec("My Account");
settingspec.setIndicator("My Account", getResources().getDrawable(R.drawable.myaccount));
Intent settingIntent = new Intent(this, CustomerLogin.class);
settingspec.setContent(settingIntent);
tabHost.addTab(settingspec);
tabbar.xml:
<?xml version="1.0" encoding="utf-8"?>
<TabHost
android:id="#android:id/tabhost"
android:layout_width="match_parent"
android:layout_height="match_parent"
xmlns:android="http://schemas.android.com/apk/res/android">
<RelativeLayout
android:layout_width="match_parent"
android:id="#+id/linearLayout1"
android:layout_height="match_parent">
<TabWidget
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="#android:id/tabs"
android:layout_alignParentBottom="true">
</TabWidget>
<FrameLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="#android:id/tabcontent">
</FrameLayout>
</RelativeLayout>
</TabHost>
In first tab have to perform MainActivity(GridView) activity.it is woked well.in Main activity i have to clik any item means it is go to SubCate(listview) activity.Here also i have to display tabbar on bottom.how can i set.
In subcate.xml file have included below code:
<include
android:id="#+id/footer"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
layout="#layout/tabbar" />
but the tabbar is not display.whats wrong here.please help me.

Please write below code instead of your code for add multiple activities in one TabActivity, it will solve your problem.
ActivityStack.java
public class ActivityStack extends ActivityGroup {
private Stack<String> stack;
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
if (stack == null)
stack = new Stack<String>();
// start default activity
push("FirstStackActivity", new Intent(this, Tab_SampleActivity.class));
}
#Override
public void finishFromChild(Activity child) {
pop();
}
#Override
public void onBackPressed() {
pop();
}
public void push(String id, Intent intent) {
Window window = getLocalActivityManager().startActivity(id, intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP));
if (window != null) {
stack.push(id);
setContentView(window.getDecorView());
}
}
public void pop() {
if (stack.size() == 1)
finish();
LocalActivityManager manager = getLocalActivityManager();
manager.destroyActivity(stack.pop(), true);
if (stack.size() > 0) {
Intent lastIntent = manager.getActivity(stack.peek()).getIntent();
Window newWindow = manager.startActivity(stack.peek(), lastIntent);
setContentView(newWindow.getDecorView());
}
}
}
TabActivity.java
public class TabActivity extends TabActivity {
/** Called when the activity is first created. */
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.tab_screen);
TabHost tabHost = getTabHost();
Intent intent = new Intent().setClass(this, ActivityStack.class);
TabHost.TabSpec spec = tabHost.newTabSpec("tabId").setIndicator("Temp", getResources().getDrawable(R.drawable.home));
spec.setContent(intent);
tabHost.addTab(spec);
Intent intent1 = new Intent().setClass(this, ActivityStack.class);
TabHost.TabSpec spec1 = tabHost.newTabSpec("tabId").setIndicator("Temp", getResources().getDrawable(R.drawable.invoice));
spec1.setContent(intent1);
tabHost.addTab(spec1);
tabHost.setCurrentTab(0);
}
}
FirstActivity.java
public class FirstActivity extends Activity {
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
TextView textView = new TextView(this);
textView.setText("Tab Sample Activity ");
textView.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
Intent intent = new Intent();
intent.setClass(getParent(), SecondActivity.class);
ActivityStack activityStack = (ActivityStack) getParent();
activityStack.push("SecondActivity", intent);
}
});
setContentView(textView);
}
}
SecondActivity.java
public class SecondActivity extends Activity {
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
TextView textView = new TextView(this);
textView.setText("First Stack Activity ");
textView.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
Intent intent = new Intent();
intent.setClass(getParent(), ThirdActivity.class);
ActivityStack activityStack = (ActivityStack) getParent();
activityStack.push("ThirdActivity", intent);
}
});
setContentView(textView);
}
}
ThirdActivity.java
public class ThirdActivity extends Activity {
#Override
protected void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
}
}
Add Below XML files into your res/layout folder.
1) tab_screen.xml
<?xml version="1.0" encoding="utf-8"?>
<TabHost xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#android:id/tabhost"
android:layout_width="fill_parent"
android:layout_height="fill_parent" >
<RelativeLayout
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical"
android:padding="3dp" >
<FrameLayout
android:id="#android:id/tabcontent"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_above="#android:id/tabs"
android:layout_weight="1" />
<TabWidget
android:id="#android:id/tabs"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true" />
</RelativeLayout>
</TabHost>
2) main.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical" >
<TextView
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="#string/hello" />
</LinearLayout>
AndroidManifest.xml:-
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.android.tabsample"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk android:minSdkVersion="8" />
<application
android:icon="#drawable/ic_launcher"
android:label="#string/app_name" >
<activity
android:name=".FirstActivity"
android:label="#string/app_name" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.DEFAULT" />
</intent-filter>
</activity>
<activity
android:name=".TabActivity"
android:label="#string/app_name" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity
android:name=".ActivityStack"
android:label="#string/app_name" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.DEFAULT" />
</intent-filter>
</activity>
<activity
android:name=".SecondActivity"
android:label="#string/app_name" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.DEFAULT" />
</intent-filter>
</activity>
<activity
android:name=".ThirdActivity"
android:label="#string/app_name" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.DEFAULT" />
</intent-filter>
</activity>
</application>
</manifest>
And see below link for more information on add multiple activities under one TabActivity with complete example.
Android - Multiple Android Activities under one TabActivity

You can use this class for implementing the functionality you have specified.
import java.util.ArrayList;
import android.app.Activity;
import android.app.ActivityGroup;
import android.app.LocalActivityManager;
import android.content.Intent;
import android.os.Bundle;
import android.view.KeyEvent;
import android.view.Window;
public class TabActivityGroup extends ActivityGroup {
private ArrayList<String> mIdList;
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
if (mIdList == null)
mIdList = new ArrayList<String>();
}
/**
* This is called when a child activity of this one calls its finish method.
* This implementation calls {#link LocalActivityManager#destroyActivity} on
* the child activity and starts the previous activity. If the last child
* activity just called finish(),this activity (the parent), calls finish to
* finish the entire group.
*/
#Override
public void finishFromChild(Activity child) {
LocalActivityManager manager = getLocalActivityManager();
int index = mIdList.size() - 1;
if (index < 1) {
finish();
return;
}
manager.destroyActivity(mIdList.get(index), true);
mIdList.remove(index);
index--;
String lastId = mIdList.get(index);
Intent lastIntent = manager.getActivity(lastId).getIntent();
Window newWindow = manager.startActivity(lastId, lastIntent);
setContentView(newWindow.getDecorView());
}
/**
* Starts an Activity as a child Activity to this.
*
* #param Id
* Unique identifier of the activity to be started.
* #param intent
* The Intent describing the activity to be started.
* #throws android.content.ActivityNotFoundException.
*/
public void startChildActivity(String Id, Intent intent) {
Window window = getLocalActivityManager().startActivity(Id,
intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP));
if (window != null) {
mIdList.add(Id);
setContentView(window.getDecorView());
}
}
/**
* The primary purpose is to prevent systems before
* android.os.Build.VERSION_CODES.ECLAIR from calling their default
* KeyEvent.KEYCODE_BACK during onKeyDown.
*/
#Override
public boolean onKeyDown(int keyCode, KeyEvent event) {
if (keyCode == KeyEvent.KEYCODE_BACK) {
// preventing default implementation previous to
// android.os.Build.VERSION_CODES.ECLAIR
return true;
}
return super.onKeyDown(keyCode, event);
}
/**
* Overrides the default implementation for KeyEvent.KEYCODE_BACK so that
* all systems call onBackPressed().
*/
#Override
public boolean onKeyUp(int keyCode, KeyEvent event) {
if (keyCode == KeyEvent.KEYCODE_BACK) {
onBackPressed();
return true;
}
return super.onKeyUp(keyCode, event);
}
/**
* If a Child Activity handles KeyEvent.KEYCODE_BACK. Simply override and
* add this method.
*/
#Override
public void onBackPressed() {
int length = mIdList.size();
if (length > 1) {
Activity current = getLocalActivityManager().getActivity(
mIdList.get(length - 1));
current.finish();
}
}
}
Create an intermediate activity as below by extending TabActivitygroup
import android.content.Intent;
import android.os.Bundle;
import android.util.Log;
public class InterMediateActivity extends TabActivityGroup{
String TabID;
String TabName;
#Override
public void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
TabID=getIntent().getStringExtra("TabID");
TabName=getIntent().getStringExtra("TabName");
Log.i("Tab from intermediate",""+TabID+" "+TabName);
filterTabs(TabID);
}
private void filterTabs(String TabID)
{
if(TabID.trim().equals("Home"))
{
startChildActivity("Options", new Intent(this,HomePage.class));
//TabsUtil.setTabIndicator(specTab,"Wall", null, tabView);
}
if(TabID.trim().equals("Menu"))
{
startChildActivity("Options", new Intent(this,MenuPage.class));
//TabsUtil.setTabIndicator(specTab,"Wall", null, tabView);
}
if(TabID.trim().equals("Gallery"))
{
Log.i("GALLERY check", "gallery check");
startChildActivity("Options", new Intent(this,GalleryPage.class));
}
if(TabID.trim().equals("Aboutus"))
{
startChildActivity("Options", new Intent(this,AboutUsPage.class));
}
if(TabID.trim().equals("Location"))
{
startChildActivity("Options", new Intent(this,LocationList.class));
}
if(TabID.trim().equals("Events"))
{
startChildActivity("Options", new Intent(this,EventsPage.class));
}
if(TabID.trim().equals("TipCalculator"))
{
startChildActivity("Options", new Intent(this,TipCalculatorPage.class));
}
if(TabID.trim().equals("Special"))
{
startChildActivity("Options", new Intent(this,SpecialPage.class));
}
if(TabID.trim().equals("NowRunning"))
{
startChildActivity("Options", new Intent(this,NowRunningPage.class));
}
if(TabID.trim().equals("ShowTimes"))
{
startChildActivity("Options", new Intent(this,ShowTimePage.class));
}
if(TabID.trim().equals("GpsCoupon"))
{
startChildActivity("Options", new Intent(this,GPSCouponPage.class));
}
if(TabID.trim().equals("UpcomingMovieNames"))
{
startChildActivity("Options", new Intent(this,UpcomingPage.class));
}
if(TabID.trim().equals("PriceListOfServices"))
{
startChildActivity("Options", new Intent(this,ServicesPage.class));
}
if(TabID.trim().trim().equals("NewsLetter"))
{
Log.i("newsletter check", "newsletter check");
startChildActivity("Options", new Intent(this,NewsLetter.class));
}
if(TabID.trim().trim().equals("Website"))
{
startChildActivity("Options", new Intent(this,WebSitePage.class));
}
}
}
And instead of setting the tabs from tabactivity directly you can set them inside the intermediate activity. Then call the Intermediate activity from the tabactivity.
Intent intent = new Intent(this, InterMediateActivity.class);
intent.putExtra("TabID", item.elementAt(0));
intent.putExtra("TabName", item.elementAt(1));

GoogleAPI added but MapActivity becomes unseen

I have a little problem with googlemap application that I would like to use this tutorial to work with my Eclipse, I have updated all Elipse ADTs, downloaded GoogleAPI but I still have got an error from the IDE that MapActivity from which my HelloWorld Application is to be extended can not be resolved to a type. Am I missing some important imports or settings I need to perform on the Eclipse itself to make it work ?
public class HelloGoogleMapActivity extends MapActivity {
/** Called when the activity is first created. */
#override
protected boolean isRoundDisplayed()
{
return false;
}
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
MapView mapv=(MapView)findViewById(R.id.mapview);
mapv.setBuildInZoomControls(true);
}
}
Also the first "#override" keyword is reported as illegal, which I have no idea why.
[UPDATE]
All the answers offered are correct. And the most correct one is a comment below. Thank you for your code snips. Cool!

for #Override exception jst change once javacompiler from your project properties ...JDK Compliance 1.6 to 1.5 and thn again set it to 1.6...i was facing the same prob.. it is bcz of some jdk build project...or eclipse prob...
And for map Prob
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/mainlayout"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical" >
<com.google.android.maps.MapView
android:id="#+id/showmap"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:apiKey="#string/mapkey"
android:clickable="true" />
</RelativeLayout>
Activity.java
MapView mapView;
#Override
protected void onCreate(Bundle icicle) {
try {
super.onCreate(icicle);
setContentView(R.layout.map_screen);
mapView = (MapView) findViewById(R.id.showmap);
mapView.setBuiltInZoomControls(true);
final MapController mc = mapView.getController();
mc.animateTo(new GeoPoint(((int) (latitude * 1E6) - 10),
((int) (longitude * 1E6)) - 10));
mc.setZoom(5);
} catch (Exception e) {
Log.e("MapCreate", e.getMessage());
}
ApplicationManifest.xml
<uses-permission android:name="android.permission.INTERNET" />
<application
android:icon="#drawable/ic_launcher"
android:label="Andro Integration"
android:theme="#android:style/Theme.Black.NoTitleBar.Fullscreen" >
<uses-library android:name="com.google.android.maps" />
<!-- <activity -->
<!-- </activity> -->
</application>

java
package com.manit.HelloGoogleMaps2;
import java.util.List;
import android.graphics.drawable.Drawable;
import android.os.Bundle;
import com.google.android.maps.GeoPoint;
import com.google.android.maps.MapActivity;
import com.google.android.maps.MapView;
import com.google.android.maps.Overlay;
import com.google.android.maps.OverlayItem;
public class HelloGoogleMaps2 extends MapActivity {
/** Called when the activity is first created. */
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
MapView mapView = (MapView) findViewById(R.id.mapview);
mapView.setBuiltInZoomControls(true);
List<Overlay> mapOverlays = mapView.getOverlays();
Drawable drawable = this.getResources().getDrawable(R.drawable.icon);
HelloItemizedOverlay itemizedoverlay = new HelloItemizedOverlay(drawable,this);
GeoPoint point = new GeoPoint(30443769,-91158458);
OverlayItem overlayitem = new OverlayItem(point, "hi", "I'm in India!");
GeoPoint point2 = new GeoPoint(17385812,78480667);
OverlayItem overlayitem2 = new OverlayItem(point2, "hi!", "I'm in Ahmedabad, India!");
itemizedoverlay.addOverlay(overlayitem);
itemizedoverlay.addOverlay(overlayitem2);
mapOverlays.add(itemizedoverlay);
}
#Override
protected boolean isRouteDisplayed()
{
return false;
} }
HelloItemizedOverlay.java
package com.manit.HelloGoogleMaps2;
import java.util.ArrayList;
import android.app.AlertDialog;
import android.content.Context;
import android.graphics.drawable.Drawable;
import com.google.android.maps.ItemizedOverlay;
import com.google.android.maps.OverlayItem;
public class HelloItemizedOverlay extends ItemizedOverlay<OverlayItem>{
private ArrayList<OverlayItem> mOverlays = new ArrayList<OverlayItem>();
private Context mContext;
public HelloItemizedOverlay(Drawable defaultMarker, Context context) {
// TODO Auto-generated constructor stub
super(boundCenterBottom(defaultMarker));
mContext = context;
}
public void addOverlay(OverlayItem overlay)
{
mOverlays.add(overlay);
populate();
}
#Override
protected OverlayItem createItem(int i)
{
return mOverlays.get(i);
}
#Override
public int size()
{
return mOverlays.size();
}
#Override
protected boolean onTap(int index)
{
OverlayItem item = mOverlays.get(index);
AlertDialog.Builder dialog = new AlertDialog.Builder(mContext);
dialog.setTitle(item.getTitle());
dialog.setMessage(item.getSnippet());
dialog.show();
return true;
}
}
Androidmanifest.xml
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.manit.HelloGoogleMaps2"
android:versionCode="1"
android:versionName="1.0">
<uses-sdk android:minSdkVersion="7" />
<application android:icon="#drawable/icon" android:label="#string/app_name">
<activity android:name=".HelloGoogleMaps2"
android:label="#string/app_name">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<uses-library android:name="com.google.android.maps" />
</application>
<uses-permission android:name="android.permission.INTERNET" />
</manifest>
main.xml
<?xml version="1.0" encoding="utf-8"?>
<com.google.android.maps.MapView
xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/mapview"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:clickable="true"
android:apiKey="0Y2GRNdvsKsNO5cbkNKYcht3_0ASApwak-Q19Fg"
/>
string.xml
<?xml version="1.0" encoding="utf-8"?>
<resources>
<string name="hello">Hello World, HelloGoogleMaps!</string>
<string name="app_name">Hello,GoogleMaps</string>
<string name="mapskey">0Y2GRNdvsKsNO5cbkNKYcht3_0ASApwak-Q19Fg</string>
</resources>