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());
.....
}
Related
I created my new webapp. It worked well. But I wanted to add a progress bar. The progress bar works, but my webview doesn't show anynore. I don't understand why. Can someone may help, please?
I tried all the codes I found online. They are ok for the others, but not for me.
Here my manifest file:
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android">
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
<application
android:allowBackup="true"
android:fullBackupOnly="true"
android:icon="#drawable/donorionepng"
android:label="PCDO GENOVA"
android:roundIcon="#mipmap/ic_launcher_round"
android:supportsRtl="true"
android:theme="#style/Theme.PCDOPCDOGENOVA"
android:usesCleartextTraffic="true">
<activity
android:name=".MainActivity" android:configChanges="keyboard|keyboardHidden|orientation|screenLayout|uiMode|screenSize|smallestScreenSize"
android:exported="true"/>
<activity
android:name=".SplashActivity" android:configChanges="keyboard|keyboardHidden|orientation|screenLayout|uiMode|screenSize|smallestScreenSize"
android:exported="true" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<action android:name="android.intent.action.VIEW" />
<category android:name="android.intent.category.DEFAULT" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
</manifest>
Here my MainActivity.java
package it.donorionegenova.pcdopcdogenova;
import androidx.appcompat.app.AppCompatActivity;
import androidx.swiperefreshlayout.widget.SwipeRefreshLayout;
import android.content.pm.ActivityInfo;
import android.content.Intent;
import android.net.Uri;
import android.os.Bundle;
import android.os.Handler;
import android.os.Looper;
import android.view.KeyEvent;
import android.view.View;
import android.webkit.ClientCertRequest;
import android.webkit.WebChromeClient;
import android.webkit.WebResourceRequest;
import android.webkit.WebSettings;
import android.webkit.WebView;
import android.webkit.WebViewClient;
import android.widget.Button;
import android.widget.ProgressBar;
import android.widget.TextView;
import androidx.core.content.res.ResourcesCompat;
import com.onesignal.OneSignal;
import android.annotation.SuppressLint;
public class MainActivity extends AppCompatActivity {
private static final String ONESIGNAL_APP_ID = "........ de2";
private SwipeRefreshLayout swipeRefreshLayout;
private WebView webView;
ProgressBar progressBar;
#SuppressLint("SetJavaScriptEnabled")
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
ProgressBar progressBar = findViewById(R.id.prBar);
webView = findViewById(R.id.webView);
webView.getSettings().setJavaScriptEnabled(true);
webView.loadUrl("https://www.donorione-genova.it/home-app");
webView.setWebViewClient(new WebViewClient());
webView.setWebChromeClient(new WebChromeClient() {
#Override
public void onProgressChanged(WebView view, int newProgress) {
super.onProgressChanged(view, newProgress);
progressBar.setProgress(newProgress);
if (newProgress == 100) {
webView.setVisibility(View.VISIBLE);
progressBar.setVisibility(View.GONE);
} else {
webView.setVisibility(View.GONE);
progressBar.setVisibility(View.VISIBLE);
}
}
});
TextView textView = findViewById(R.id.textview);
textView.postDelayed(() -> textView.setText("loading..."), 500); // delay of 2 seconds before setting a text to textView
textView.postDelayed(() -> textView.setVisibility(View.GONE), 2000);
// Enable verbose OneSignal logging to debug issues if needed.
OneSignal.setLogLevel(OneSignal.LOG_LEVEL.VERBOSE, OneSignal.LOG_LEVEL.NONE);
// OneSignal Initialization
OneSignal.initWithContext(this);
OneSignal.setAppId(ONESIGNAL_APP_ID);
setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_SENSOR);
WebSettings settings = webView.getSettings();
settings.setJavaScriptEnabled(true);
settings.setDisplayZoomControls(false);
settings.supportZoom();
settings.setSupportZoom(true);
settings.setBuiltInZoomControls(true);
// settings.setCacheMode(WebSettings.LOAD_CACHE_ELSE_NETWORK);
settings.setLoadWithOverviewMode(true);
settings.setUseWideViewPort(true);
settings.setDomStorageEnabled(true);
settings.setLoadsImagesAutomatically(true);
webView.clearHistory();
webView.clearCache(true);
registerForContextMenu(webView);
webView = findViewById(R.id.webView);
webView.getSettings().setJavaScriptEnabled(true);
webView.loadUrl("https://www.donorione-genova.it/home-app");
webView.setWebViewClient(new WebViewClient() {
#Override
public boolean shouldOverrideUrlLoading(WebView View, WebResourceRequest request) {
final Uri uri = request.getUrl();
if (uri.toString().startsWith("mailto:")) {
//Handle mail Urls
startActivity(new Intent(Intent.ACTION_SENDTO, uri));
} else if (uri.toString().startsWith("tel:")) {
//Handle telephony Urls
startActivity(new Intent(Intent.ACTION_DIAL, uri));
} else {
//Handle Web Urls
webView.loadUrl(uri.toString());
}
return true;
}
});
//per fare il refresh
swipeRefreshLayout = findViewById(R.id.swipe);
swipeRefreshLayout.setOnRefreshListener(() -> {
swipeRefreshLayout.setRefreshing(true);
new Handler().postDelayed(() -> {
swipeRefreshLayout.setRefreshing(false);
webView.reload();
}, 2000);
});
swipeRefreshLayout.setColorSchemeColors(
ResourcesCompat.getColor(
getResources(), R.color.holo_blue_dark, null),
ResourcesCompat.getColor(
getResources(), R.color.holo_orange_dark, null),
ResourcesCompat.getColor(
getResources(), R.color.holo_green_dark, null),
ResourcesCompat.getColor(
getResources(), R.color.holo_red_dark, null));
}
public void gohome(View v)
{
webView.loadUrl("https://donorione-genova.it/home-app");
}
public void clickexit(View v)
{
moveTaskToBack(true);
android.os.Process.killProcess(android.os.Process.myPid());
System.exit(1);
}
public void onBackPressed() {
if(webView.canGoBack()) {
webView.goBack();
}
else
super.onBackPressed();
}
}
And here my ActivityMain:
<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
xmlns:app="http://schemas.android.com/apk/res-auto">
<androidx.swiperefreshlayout.widget.SwipeRefreshLayout
android:id="#+id/swipe"
android:layout_width="match_parent"
android:layout_height="match_parent">
<ProgressBar
android:id="#+id/prBar"
android:layout_width="match_parent"
android:layout_height="wrap_content"
style="?android:attr/progressBarStyleHorizontal" />
<WebView
android:id="#+id/webView"
android:layout_width="match_parent"
android:layout_height="match_parent"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"
android:visibility="visible" >
</WebView>
</androidx.swiperefreshlayout.widget.SwipeRefreshLayout>
<Button
android:id="#+id/button"
android:layout_width="185dp"
android:layout_height="wrap_content"
android:background="#0063B1"
android:onClick="clickexit"
android:text="#string/Chiudi"
android:textColor="#color/white"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_weight="1"
app:layout_constraintStart_toEndOf="#+id/button2">
</Button>
<Button
android:id="#+id/button2"
android:layout_width="185dp"
android:layout_height="wrap_content"
android:background="#0063B1"
android:onClick="gohome"
android:text="#string/Home"
android:textColor="#color/white"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toStartOf="#+id/button"
app:layout_constraintHorizontal_weight="1"
app:layout_constraintStart_toStartOf="parent">
</Button>
<TextView
android:id="#+id/textview"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text=""
android:textColor="#0000ff"
android:textSize="40sp"
android:textAlignment="center"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toTopOf="parent">
</TextView>
</androidx.constraintlayout.widget.ConstraintLayout>
I didn't use SwipeRefreshLayout, but the documentation says you need to include another layout inside it. As you added a second view inside, you are now using it as a default ViewGroup, which is probably not working as expected. Put a LinearLayout or whatever inside the SwipeRefreshLayout and your components inside your LinearLayout.
I've read everything about this issue on the site but no solution worked for me. I am not even a beginner and try to create a 4-tab activity. First tab has a webView but it does not load the url. What is missing?
AndroidManifest.xml
<?xml version="1.0" encoding="utf-8"?>
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
<uses-permission android:name="android.permission.CALL_PHONE" />
<application
android:allowBackup="true"
android:icon="#mipmap/ic_launcher"
android:label="#string/app_name"
android:supportsRtl="true"
android:theme="#style/Theme.AppCompat.NoActionBar">
<activity android:name=".MainActivity">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<!-- [START firebase_service] -->
<service android:name=".MyFirebaseMessagingService">
<intent-filter>
<action android:name="com.google.firebase.MESSAGING_EVENT" />
</intent-filter>
</service>
<!-- [END firebase_service] -->
<!-- [START firebase_iid_service] -->
<service android:name=".MyFirebaseInstanceIDService">
<intent-filter>
<action android:name="com.google.firebase.INSTANCE_ID_EVENT" />
</intent-filter>
</service>
<!-- [END firebase_iid_service] -->
<activity
android:name=".AnaSayfa"
android:label="#string/title_activity_ana_sayfa"
android:theme="#style/Theme.AppCompat.NoActionBar"></activity>
</application>
fragment_frag_home.xml
<FrameLayout 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="layout.fragHome">
<!-- TODO: Update blank fragment layout -->
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#color/pembis"
android:orientation="vertical">
<WebView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_centerVertical="true"
android:id="#+id/webView"
android:layout_alignParentRight="true"
android:layout_alignParentEnd="true"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true" />
</RelativeLayout>
fragHome.java
package layout;
import android.app.ProgressDialog;
import android.content.Context;
import android.graphics.Bitmap;
import android.net.Uri;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.webkit.WebView;
import android.webkit.WebViewClient;
import com.sahin.spm.R;
/**
* A simple {#link Fragment} subclass.
* Activities that contain this fragment must implement the
* {#link fragHome.OnFragmentInteractionListener} interface
* to handle interaction events.
* Use the {#link fragHome#newInstance} factory method to
* create an instance of this fragment.
*/
public class fragHome extends Fragment {
private WebView myWebView;
private String Url = "http://google.com.tr";
// 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;
private OnFragmentInteractionListener mListener;
public fragHome() {
// 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 fragHome.
*/
// TODO: Rename and change types and number of parameters
public static fragHome newInstance(String param1, String param2) {
fragHome fragment = new fragHome();
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) {
View rootView = inflater.inflate(R.layout.fragment_frag_home, container, false);
WebView webView = (WebView) rootView.findViewById(R.id.webView);
webView.setWebViewClient(new WebViewClient());
webView.getSettings().setJavaScriptEnabled(true);
webView.loadUrl("http://www.google.com.tr");
return rootView;
}
// TODO: Rename method, update argument and hook method into UI event
public void onButtonPressed(Uri uri) {
if (mListener != null) {
mListener.onFragmentInteraction(uri);
}
}
#Override
public void onAttach(Context context) {
super.onAttach(context);
if (context instanceof OnFragmentInteractionListener) {
mListener = (OnFragmentInteractionListener) context;
} else {
throw new RuntimeException(context.toString()
+ " must implement OnFragmentInteractionListener");
}
}
#Override
public void onDetach() {
super.onDetach();
mListener = null;
}
/**
* This interface must be implemented by activities that contain this
* fragment to allow an interaction in this fragment to be communicated
* to the activity and potentially other fragments contained in that
* activity.
* <p>
* See the Android Training lesson <a href=
* "http://developer.android.com/training/basics/fragments/communicating.html"
* >Communicating with Other Fragments</a> for more information.
*/
public interface OnFragmentInteractionListener {
// TODO: Update argument type and name
void onFragmentInteraction(Uri uri);
}
}
Thanks for your help.
Edit:
In my opinion the problem is in this lines:
View rootView = inflater.inflate(R.layout.fragment_anasayfa, container, false);
WebView myWebView = (WebView) rootView.findViewById(R.id.hWebView);
I think there is an issue with relating the defined object with the existing webview.
try overriding setUserVisibleHint like this:
#Override
public void setUserVisibleHint(boolean isVisibleToUser) {
super.setUserVisibleHint(isVisibleToUser);
if (isVisibleToUser){
webView.loadUrl("http://www.google.com.tr");
}
I am not able to set an image from the app as wallpaper. On running it shows unfortunately testandroid stopped working.
I have set the permission in the manifest file and set minimum SDK to 5.
Androidmanifest file
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.testandroid"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk
android:minSdkVersion="5"
android:targetSdkVersion="19" />
<uses-permission android:maxSdkVersion="19" android:name="android.permission.SET_WALLPAPER"/>
<application
android:allowBackup="true"
android:icon="#drawable/ic_launcher"
android:label="#string/app_name"
android:theme="#style/AppTheme" >
<activity
android:name="com.example.testandroid.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>
<activity
android:name=".Activity"
android:label="#string/app_name" >
</activity>
</application>
</manifest>
fragment_main.xml
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:paddingBottom="#dimen/activity_vertical_margin"
android:paddingLeft="#dimen/activity_horizontal_margin"
android:paddingRight="#dimen/activity_horizontal_margin"
android:paddingTop="#dimen/activity_vertical_margin"
tools:context="com.example.testandroid.MainActivity$PlaceholderFragment" >
<TextView
android:id="#+id/textView1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="#string/hello_world" />
<ImageView
android:id="#+id/imageview1"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:src="#drawable/bing"
android:adjustViewBounds="true"/>
<Button
android:id="#+id/button1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="14dp"
android:layout_marginTop="27dp"
android:text="#string/btn"
android:onClick="goForNext"/>
<Button
android:id="#+id/button2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="#string/btn1"
android:onClick="setWallpaper"/>
</LinearLayout>
MainActivity.java
package com.example.testandroid;
import android.app.WallpaperManager;
import android.content.Intent;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.support.v7.app.ActionBarActivity;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.ViewGroup;
import android.widget.Button;
import android.widget.ImageView;
public class MainActivity extends ActionBarActivity {
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
ImageView imgview = (ImageView) findViewById(R.id.imageview1);
imgview.setImageResource(R.drawable.bing);
if (savedInstanceState == null) {
getSupportFragmentManager().beginTransaction()
.add(R.id.container, new PlaceholderFragment()).commit();
}
}
#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 PlaceholderFragment extends Fragment {
public PlaceholderFragment() {
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.fragment_main, container,
false);
return rootView;
}
}
public void goForNext(View view){
Button but = (Button) findViewById(R.id.button1);
Intent i = new Intent(MainActivity.this, Activity.class);
startActivity(i);
}
public void setWallpaper(View view)
{
Button bt = (Button) findViewById(R.id.button2);
WallpaperManager wm = WallpaperManager.getInstance(getApplicationContext());
try
{
wm.setResource(R.drawable.bing);
}
catch (Exception e)
{
e.printStackTrace();
}
}
}
here is the activity_main.xml file. please help me wiht it.
activity_main.xml
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:id="#+id/container"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context="com.example.testandroid.MainActivity"
tools:ignore="MergeRootFrame" />
Try removing the following from onCreate()
ImageView imgview = (ImageView) findViewById(R.id.imageview1);
imgview.setImageResource(R.drawable.bing);
And add this to your onCreateView() method in your Fragment
View rootView = inflater.inflate(R.layout.fragment_main, container,
false);
ImageView imgview = (ImageView) rootView.findViewById(R.id.imageview1);
imgview.setImageResource(R.drawable.bing);
return rootView;
I am new to android, Eclipse and Java.
I started these tutorials from here: http://developer.android.com/training/basics/firstapp/index.html
I did all the steps from the link above...my problem is when I run this app and press the 'Send' button...nothing happens, there are no errors in my Console or LogCat.
Here is my code I ended up with:
activity_main.xml:
<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="horizontal" >
<EditText android:id="#+id/edit_message"
android:layout_weight="1"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:hint="#string/edit_message" />
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="#string/button_send"
android:onClick="sendMessage" />
</LinearLayout>
strings.xml:
<?xml version="1.0" encoding="utf-8"?>
<resources>
<string name="app_name">MyFirstApp</string>
<string name="action_settings">Settings</string>
<string name="edit_message">Enter a message</string>
<string name="button_send">Send</string>
<string name="title_activity_main">MainActivity</string>
<string name="title_activity_display_message">My Message</string>
<string name="hello_world">Hello world!</string>
</resources>
MainActivity.java:
package com.example.myfirstapp;
import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.view.Menu;
import android.view.View;
import android.widget.EditText;
public class MainActivity extends Activity {
public final static String EXTRA_MESSAGE = "com.example.myfirstapp.MESSAGE";
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
}
#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;
}
public void sendMessage(View view) {
Intent intent = new Intent(this, DisplayMessageActivity.class);
EditText editText = (EditText) findViewById(R.id.edit_message);
String message = editText.getText().toString();
intent.putExtra(EXTRA_MESSAGE, message);
}
}
DisplayMessageActivity.java:
package com.example.myfirstapp;
import android.annotation.SuppressLint;
import android.annotation.TargetApi;
import android.app.Activity;
import android.content.Intent;
import android.os.Build;
import android.os.Bundle;
import android.support.v4.app.NavUtils;
import android.view.MenuItem;
import android.widget.TextView;
public class DisplayMessageActivity extends Activity {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
// Get the message from the intent
Intent intent = getIntent();
String message = intent.getStringExtra(MainActivity.EXTRA_MESSAGE);
// Create the text view
TextView textView = new TextView(this);
textView.setTextSize(40);
textView.setText(message);
// Set the text view as the activity layout
setContentView(textView);
// Show the Up button in the action bar.
setupActionBar();
}
/**
* Set up the {#link android.app.ActionBar}, if the API is available.
*/
#SuppressLint("NewApi")
#TargetApi(Build.VERSION_CODES.HONEYCOMB)
private void setupActionBar() {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB) {
getActionBar().setDisplayHomeAsUpEnabled(true);
}
}
#Override
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()) {
case android.R.id.home:
// This ID represents the Home or Up button. In the case of this
// activity, the Up button is shown. Use NavUtils to allow users
// to navigate up one level in the application structure. For
// more details, see the Navigation pattern on Android Design:
//
// http://developer.android.com/design/patterns/navigation.html#up-vs-back
//
NavUtils.navigateUpFromSameTask(this);
return true;
}
return super.onOptionsItemSelected(item);
}
}
and activity_display_message.xml:
<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"
android:paddingBottom="#dimen/activity_vertical_margin"
android:paddingLeft="#dimen/activity_horizontal_margin"
android:paddingRight="#dimen/activity_horizontal_margin"
android:paddingTop="#dimen/activity_vertical_margin"
tools:context=".DisplayMessageActivity" >
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="#string/hello_world" />
</RelativeLayout>
Has anyone else ran into the same issue as me? Any help would be appreciated.
MyFirstApp Manifest:
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.myfirstapp"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk
android:minSdkVersion="8"
android:targetSdkVersion="17" />
<application
android:allowBackup="true"
android:icon="#drawable/ic_launcher"
android:label="#string/app_name"
android:theme="#style/AppTheme" >
<activity
android:name="com.example.myfirstapp.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>
<activity
android:name="com.example.myfirstapp.DisplayMessageActivity"
android:label="#string/title_activity_display_message"
android:parentActivityName="com.example.myfirstapp.MainActivity" >
<meta-data
android:name="android.support.PARENT_ACTIVITY"
android:value="com.example.myfirstapp.MainActivity" />
</activity>
</application>
</manifest>
You need to call startActivity
public void sendMessage(View view) {
Intent intent = new Intent(this, DisplayMessageActivity.class);
EditText editText = (EditText) findViewById(R.id.edit_message);
String message = editText.getText().toString();
intent.putExtra(EXTRA_MESSAGE, message);
startActivity(intent); // missing
}
Also make sure you have made an entry for the activities in manifest file.
I created a brand new android project and added SherlockActionBar and SlidingMenu to it.
I thought that i had copied everything from the example file but it still doesn't work. It shows my main fragment but the menu doesn't show at all when i click on the icon.
What am i missing??
Here are the classes and XML. Project is empty except for these classes/xml files.
Class 1 (Main activity):
import android.os.Bundle;
import com.slidingmenu.lib.SlidingMenu;
import com.slidingmenu.lib.app.SlidingFragmentActivity;
public class Main extends SlidingFragmentActivity {
protected MenuFragment mFrag;
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
mFrag = new MenuFragment();
setContentView(R.layout.activity_main);
getSupportFragmentManager()
.beginTransaction()
.replace(R.id.content_frame, new SectionOneFragment())
.commit();
// set the Behind View
setBehindContentView(R.layout.activity_menu);
getSupportFragmentManager()
.beginTransaction()
.replace(R.id.menu_frame, mFrag)
.commit();
// customize the SlidingMenu
SlidingMenu sm = getSlidingMenu();
sm.setMode(SlidingMenu.LEFT);
sm.setShadowWidthRes(R.dimen.shadow_width);
sm.setShadowDrawable(R.drawable.shadow);
sm.setBehindOffsetRes(R.dimen.slidingmenu_offset);
sm.setFadeDegree(0.35f);
sm.setTouchModeAbove(SlidingMenu.TOUCHMODE_FULLSCREEN);
getSupportActionBar().setDisplayHomeAsUpEnabled(true);
setSlidingActionBarEnabled(false);
}
}
Class 2 (Menu fragment):
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
public class MenuFragment extends Fragment {
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
// TODO Auto-generated method stub
return inflater.inflate(R.layout.fragment_menu, null);
}
}
Class 3 (SectionOne fragment)
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
public class SectionOneFragment extends Fragment {
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
// TODO Auto-generated method stub
return inflater.inflate(R.layout.fragment_main, null);
}
}
Xml 1 (res->layout->activity_main.xml):
<?xml version="1.0" encoding="utf-8"?>
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/content_frame"
android:layout_width="match_parent"
android:layout_height="match_parent" />
Xml 2 (res->layout->activity_menu.xml):
<?xml version="1.0" encoding="utf-8"?>
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/menu_frame"
android:layout_width="match_parent"
android:layout_height="match_parent" />
Xml 3 (res->layout->fragment_main.xml):
<?xml version="1.0" encoding="utf-8"?>
<TextView 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:layout_centerHorizontal="true"
android:layout_centerVertical="true"
android:text="#string/hello_world"
android:textColor="#ff00ff"
tools:context=".Main" />
Xml 4 (res->layout->fragment_menu.xml):
<?xml version="1.0" encoding="utf-8"?>
<TextView xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerHorizontal="true"
android:layout_centerVertical="true"
android:text="TEST"
android:textColor="#00ff00" />
Manifest:
<uses-sdk
android:minSdkVersion="8"
android:targetSdkVersion="15" />
<application
android:icon="#drawable/ic_launcher"
android:label="#string/app_name"
android:theme="#style/Theme.Sherlock" >
<activity
android:name=".Main"
android:label="#string/title_activity_main" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
Shadow.xml, dimens.xml are copied from the sample project.
Asked jfeinstein10 and i see that i forgot to add the onOptionsItemSelected method.
Correct code to open (to fix my class above):
#Override
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()) {
case android.R.id.home:
toggle();
return true;
}
return super.onOptionsItemSelected(item);
}
Should be in the MainActivity class after onCreate.