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Unable to add view to a window with TYPE_PHONE params android

I am trying to create a floating view which should appear on top of everything but notification panel and settings app hide my view
I tried to use WindowManager.LayoutParams.TYPE_PHONE but its deprecated after oreo and app crashes if I try to add a view to that window with params set to WindowManager.LayoutParams.TYPE_PHONE
here is my java code
import android.app.Service;
import android.content.Context;
import android.content.Intent;
import android.graphics.PixelFormat;
import android.opengl.Visibility;
import android.os.IBinder;
import android.view.Gravity;
import android.view.LayoutInflater;
import android.view.MotionEvent;
import android.view.View;
import android.view.WindowManager;
import android.widget.ImageView;
import android.widget.Toast;
public class FloatingMouseService extends Service {
private WindowManager mWindowManager;
private View floatingMouse;
public FloatingMouseService() {
}
#Override
public IBinder onBind(Intent intent) {
throw new UnsupportedOperationException("Not yet implemented");
}
#Override
public void onCreate() {
super.onCreate();
LayoutInflater layoutInflater = (LayoutInflater) FloatingMouseService.this.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
floatingMouse = layoutInflater.inflate(R.layout.layoutmouse, null);
final WindowManager.LayoutParams params = new WindowManager.LayoutParams(
WindowManager.LayoutParams.WRAP_CONTENT,
WindowManager.LayoutParams.WRAP_CONTENT,
WindowManager.LayoutParams.TYPE_APPLICATION_OVERLAY,
WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE,
PixelFormat.TRANSLUCENT);
params.gravity = Gravity.TOP | Gravity.LEFT;
params.x = 0;
params.y = 100;
mWindowManager = (WindowManager) FloatingMouseService.this.getSystemService(WINDOW_SERVICE);
mWindowManager.addView(floatingMouse, params);
}
}
here is MainActivity.java
import androidx.appcompat.app.AppCompatActivity;
import android.content.Intent;
import android.net.Uri;
import android.os.Build;
import android.os.Bundle;
import android.provider.Settings;
import android.view.View;
import android.widget.Button;
import android.widget.TextView;
import android.widget.Toast;
public class MainActivity extends AppCompatActivity {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
final int CODE_DRAW_OVER_OTHER_APP_PERMISSION = 2084;
TextView serMess = findViewById(R.id.serMess);
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M && !Settings.canDrawOverlays(this)) {
Intent intent = new Intent(Settings.ACTION_MANAGE_OVERLAY_PERMISSION,
Uri.parse("package:" + getPackageName()));
startActivityForResult(intent, CODE_DRAW_OVER_OTHER_APP_PERMISSION);
} else {
initializeView();
}
}
private void initializeView() {
Button connect = findViewById(R.id.connect);
findViewById(R.id.connect).setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
startService(new Intent(MainActivity.this, FloatingMouseService.class));
new Thread(new ClientServerReq()).start();
Toast.makeText(MainActivity.this, "Connected Successfully", Toast.LENGTH_SHORT).show();
connect.setText("Connected");
}
});
}
#Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
final int CODE_DRAW_OVER_OTHER_APP_PERMISSION = 2084;
if (requestCode == CODE_DRAW_OVER_OTHER_APP_PERMISSION) {
if (resultCode == RESULT_OK) {
initializeView();
} else { //Permission is not available
Toast.makeText(this,
"Draw over other app permission not available. Closing the application",
Toast.LENGTH_SHORT).show();
}
} else {
super.onActivityResult(requestCode, resultCode, data);
}
}
#Override
protected void onResume() {
super.onResume();
}
}
here is my Manifest
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.MFB.project.sharekey">
<uses-permission android:name="android.permission.INTERNET" ></uses-permission>
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" ></uses-permission>
<uses-permission android:name="android.permission.SYSTEM_ALERT_WINDOW"/>
<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.DayNight.DarkActionBar">
<activity
android:name="com.MFB.project.sharekey.MainActivity"
android:exported="true">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<service
android:name="com.MFB.project.sharekey.FloatingMouseService"
android:enabled="true" />
</application>
</manifest>

Button click not switching activity

I've been trying to get this app to switch activities by simply clicking the button, but the app simply refreshes and I stay on the same activity. Nothing happens. And if I uncomment the lines of code for my second activity, the OnClick ones, I get null pointer errors. I have no idea what I could be doing wrong. Here's my code in main activity:
package com.example.commontaskslite;
import androidx.appcompat.app.AppCompatActivity;
import android.os.Bundle;
import android.app.AlarmManager;
import android.app.PendingIntent;
import android.content.Intent;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.CompoundButton;
import android.widget.TimePicker;
import android.widget.Toast;
import android.widget.ToggleButton;
import android.widget.Button;
import android.widget.CompoundButton;
import java.util.Calendar;
public class MainActivity extends AppCompatActivity {
private TimePicker alarmClock;
private PendingIntent pendingIntent;
private AlarmManager alarmManager;
private Button search;
private Button redial;
private Button address;
boolean checked = false;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
alarmClock = (TimePicker) findViewById(R.id.timePicker);
alarmManager = (AlarmManager) getSystemService(ALARM_SERVICE);
ToggleButton toggle = (ToggleButton) findViewById(R.id.toggleButton);
search = (Button) findViewById(R.id.search);
redial = (Button) findViewById(R.id.redial);
address = (Button) findViewById(R.id.address);
search.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View view) {
openSearch(view);
}
});
redial.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View view) {
openRedial(view);
}
});
address.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View view) {
openShowAddress(view);
}
});
toggle.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener(){
public void onCheckedChanged(CompoundButton buttonView, boolean isChecked){
if(isChecked){
checked = true;
onToggleClicked();
}
else{
checked = false;
onToggleClicked();
}
}
});
}
public void openSearch(View V){
Intent _intent = new Intent(MainActivity.this,Search.class);
startActivity(_intent);
}
public void openRedial(View V){
Intent _intent = new Intent(MainActivity.this,Redial.class);
startActivity(_intent);
}
public void openShowAddress(View V){
Intent _intent = new Intent(MainActivity.this,ShowAddress.class);
startActivity(_intent);
}
public void onToggleClicked(){
long time;
if(checked) {
Toast.makeText(MainActivity.this, "ALARM ON", Toast.LENGTH_SHORT).show();
Calendar calendar = Calendar.getInstance();
calendar.set(Calendar.HOUR_OF_DAY, alarmClock.getHour());
calendar.set(Calendar.MINUTE, alarmClock.getMinute());
Intent intent = new Intent(this, AlarmReceiver.class);
pendingIntent = PendingIntent.getBroadcast(this, 0, intent, 0);
time = (calendar.getTimeInMillis() - (calendar.getTimeInMillis() % 60000));
if (System.currentTimeMillis() > time) {
if (calendar.AM_PM == 0) {
time = time + (1000 * 60 * 60 * 12);
} else {
time = time + (1000 * 60 * 60 * 24);
}
}
alarmManager.setRepeating(AlarmManager.RTC_WAKEUP, time, 10000, pendingIntent);
}
else{
alarmManager.cancel(pendingIntent);
Toast.makeText(MainActivity.this,"ALARM OFF", Toast.LENGTH_SHORT).show();
AlarmReceiver.ringtone.stop();
}
}
}
Here's the code in the second activity:
package com.example.commontaskslite;
import androidx.annotation.RequiresApi;
import androidx.appcompat.app.AppCompatActivity;
import android.os.Build;
import android.os.Bundle;
import android.app.AlarmManager;
import android.app.PendingIntent;
import android.content.Intent;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.SearchView;
import android.widget.SearchView.OnQueryTextListener;
public class Search extends AppCompatActivity {
private PendingIntent pendingIntent;
private Button alarm;
private Button redial;
private Button address;
private SearchView searchView;
private String searchQuery;
private Intent intent;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
intent = getIntent();/*
address = (Button) findViewById(R.id.address2);
redial = (Button) findViewById(R.id.redial2);
alarm = (Button) findViewById(R.id.alarm);
searchView = (SearchView) findViewById(R.id.searchView);
searchView.setOnQueryTextListener(new OnQueryTextListener() {
#Override
public boolean onQueryTextSubmit(String s) {
searchQuery = s;
return true;
}
#Override
public boolean onQueryTextChange(String s) {
return false;
}
});
address.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View view) {
openShowAddress(view);
}
});
redial.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View view) {
openRedial(view);
}
});
alarm.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View view) {
openMainActivity(view);
}
});*/
}
public void openShowAddress(View V){
Intent _intent = new Intent(this,ShowAddress.class);
startActivity(_intent);
}
public void openRedial(View V){
Intent _intent = new Intent(this,Redial.class);
startActivity(_intent);
}
public void openMainActivity(View V){
Intent _intent = new Intent(this,MainActivity.class);
startActivity(_intent);
}
}
And here's the manifest:
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.commontaskslite">
<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.CommonTasksLite">
<activity
android:name=".ShowAddress"
android:exported="true">
<intent-filter>
<action android:name="android.intent.action.ALL_APPS"/>
<category android:name="android.intent.category.DEFAULT"/>
</intent-filter>
</activity>
<activity
android:name=".Redial"
android:exported="true">
<intent-filter>
<action android:name="android.intent.action.CALL"/>
<category android:name="android.intent.category.DEFAULT"/>
</intent-filter>
</activity>
<activity
android:name=".Search"
android:exported="true">
<intent-filter>
<action android:name="android.intent.action.SEARCH"/>
<category android:name="android.intent.category.DEFAULT"/>
</intent-filter>
</activity>
<activity
android:name=".MainActivity"
android:exported="true">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<receiver android:name=".AlarmReceiver">
</receiver>
</application>
</manifest>

summarizing the answer that was found in comments.
Change setContentView(R.layout.activity_main); to another layout other than activity_main in Search Activity.

I can't start activity from service while app is hidden

I have two activities: MainActivity and ActivityTwo. When starting application, I start service serviceApp, which after some events should start ActivityTwo. For the test, I made the launch after 10 seconds and AsyncTask, but if the application is hidden, activity does not start
How do I launch activity even if the app is hidden?
MainActivity
import androidx.appcompat.app.AppCompatActivity;
import androidx.appcompat.widget.SwitchCompat;
import android.app.ActivityManager;
import android.content.Intent;
import android.content.SharedPreferences;
import android.os.Bundle;
import android.view.View;
import android.widget.Toast;
import java.security.Provider;
import java.util.List;
public class MainActivity extends AppCompatActivity {
SharedPreferences setting;
#Override
protected void onCreate(Bundle savedInstanceState) {
Intent service = new Intent(this, serviceApp.class);
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
setting = getSharedPreferences("settings", MODE_PRIVATE);
SwitchCompat switchCompat = findViewById(R.id.switchBLock);
switchCompat.setOnCheckedChangeListener((view, bool) -> {
SharedPreferences.Editor editor = setting.edit();
editor.putBoolean("block", bool);
editor.apply();
if(bool){
startService(service);
}else{
stopService(service);
}
});
if(setting.getBoolean("block", false)){
switchCompat.setChecked(true);
}
}
}
ActivityTwo
import android.app.ActivityManager;
import android.content.Context;
import android.content.Intent;
import android.os.Bundle;
import android.widget.Toast;
public class ActivityTwo extends AppCompatActivity {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_two);
}
}
serviceApp
import android.app.Service;
import android.content.Context;
import android.content.Intent;
import android.os.AsyncTask;
import android.os.IBinder;
public class serviceApp extends Service {
Context context;
public serviceApp() {
context = this;
}
#Override
public void onCreate() {
super.onCreate();
new Async().execute();
}
class Async extends AsyncTask<Void, Void, Void>{
#Override
protected void onPostExecute(Void aVoid) {
super.onPostExecute(aVoid);
Intent startMain = new Intent();
startMain.setClass(context, ActivityTwo.class);
startMain.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
startActivity(startMain);
}
#Override
protected Void doInBackground(Void... voids) {
for(int i = 0; i < 2; i++) {
try {
Thread.sleep(10000);
} catch (InterruptedException e) {
e.printStackTrace();
}
}
return null;
}
}
#Override
public IBinder onBind(Intent intent) {
return null;
}
}
AndroidManifest
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.test">
<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.NoActionBar">
<activity android:name="com.example.test.ActivityTwo"></activity>
<service
android:name=".serviceApp"/>
<activity android:name=".MainActivity">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
</manifest>

I found an easy way to fix this ailment, you need to give the application the SYSTEM_ALERT_WINDOW permission
https://developer.android.com/guide/components/activities/background-starts
AndroidManifest.xml
<uses-permission android:name="android.permission.SYSTEM_ALERT_WINDOW" />
MainActivity
Intent myIntent = new Intent(Settings.ACTION_MANAGE_OVERLAY_PERMISSION);
startActivity(myIntent);

App is stopped on getContentResolver().query(...) when SMS is sent

Good day, I am programming application about catching the sent messages. Everything is working, the ContentObserver is called everytime when I try to send a SMS, but in onChange(boolean selfChange) method the application drops on the :
Cursor cur = getContentResolver().query(uriSMS, null, null, null, null)
.............................. screen http://imgur.com/a/hE94K
in TrackerService.java in mObserver. When I am debbuging that via Step Over (F8), on this line It open me a Looper.java and drops on this lines http://imgur.com/a/uh4Dl ... How to fix that for working please? I hope you will understand my problem and sorry for my bad english. Thank you so much!
MainActivity.java
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.util.Log;
import android.view.Menu;
public class MainActivity extends Activity {
Intent serviceIntent;
private static MyReceiver mServiceReceiver;
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
}
#Override
protected void onPause() {
Log.i("Status","Pause");
unregisterReceiver(mServiceReceiver);
super.onPause();
}
#Override
protected void onResume() {
Log.i("Status","Resume");
serviceIntent = new Intent(MainActivity.this, TrackerService.class);
startService(serviceIntent);
mServiceReceiver = new MyReceiver();
IntentFilter intentFilter = new IntentFilter();
intentFilter.addAction(TrackerService.mAction);
registerReceiver(mServiceReceiver, intentFilter);
super.onResume();
}
private class MyReceiver extends BroadcastReceiver {
#Override
public void onReceive(Context arg0, Intent arg1) {
Log.i("ServiceReceiver", "onReceive()");
}
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.main, menu);
return true;
}
}
TrackerService.java
import android.app.Service;
import android.content.ContentResolver;
import android.content.Intent;
import android.database.ContentObserver;
import android.database.Cursor;
import android.net.Uri;
import android.os.Handler;
import android.os.IBinder;
import android.util.Log;
public class TrackerService extends Service
{
public static final String mAction = "SMSTracker";
ContentResolver content;
ContentResolver contentResolver;
#Override
public int onStartCommand(Intent intent, int flags, int startId) {
Log.i("Status","Service Start");
contentResolver = this.getContentResolver();
contentResolver.registerContentObserver(Uri.parse("content://sms/"), true, new mObserver(new Handler()));
return super.onStartCommand(intent, flags, startId);
}
class mObserver extends ContentObserver {
public mObserver(Handler handler) {
super(handler);
}
#Override
public void onChange(boolean selfChange) {
super.onChange(selfChange);
Log.i("Status","onChange");
Uri uriSMS = Uri.parse("content://sms/out/");
Cursor cur = getContentResolver().query(uriSMS, null, null, null, null);
//Log.i("SMS", "Columns: " + cur.getColumnNames());
cur.moveToNext();
String smsText = cur.getString(cur.getColumnIndex("body"));
Log.i("SMS", "SMS Lenght: " + smsText.length());
}
}
#Override
public void onDestroy() {
super.onDestroy();
Log.i("Status","Service Destroy");
}
#Override
public IBinder onBind(Intent intent) {
Log.i("Status","Service Bind");
return null;
}
}
AndroidManifest.xml
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="wut.com.smstry">
<uses-permission android:name="android.permission.RECEIVE_SMS"></uses-permission>
<uses-permission android:name="android.permission.READ_SMS"></uses-permission>
<application
android:label="#string/app_name"
android:theme="#style/AppTheme" >
<activity
android:name=".MainActivity">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<service android:name=".TrackerService" />
</application>
</manifest>

Make sure you're registering for the right content path. Ex:-
Inbox = "content://sms/inbox"
Failed = "content://sms/failed"
Queued = "content://sms/queued"
Sent = "content://sms/sent"
Draft = "content://sms/draft"
Outbox = "content://sms/outbox"
Undelivered = "content://sms/undelivered"
All = "content://sms/all"
Conversations = "content://sms/conversations".
contentResolver.registerContentObserver(Uri.parse("content://sms/outbox"), true, new mObserver(new Handler()));
Similarly use the same path on the cursor.query

How do I call my NoteMain class when I click on the "Notes" Button in my android app

As above. I'm to sure what I'm doing wrong. Here is the code for the MainActivity.java and the code for the NoteMain.java When I click on the Notes button on the home screen when the app loads it says Unfortunately,(app name) has stopped.
I don't know why? Any help is appreciated.
Thanks in advance
MainActivity:
package com.qub.buildersbuddy;
import android.os.Bundle;
import android.app.Activity;
import android.content.Intent;
import android.view.Menu;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.Toast;
public class MainActivity extends Activity {
Button buttonConverter;
Button buttonCalculator;
Button buttonNotePad;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Button ConvertBtn = (Button) findViewById(R.id.butonConverter);
ConvertBtn.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View v) {
Intent intent = new Intent(MainActivity.this,CentInch.class);
startActivity(intent);
}
});
Button CalcBtn = (Button) findViewById(R.id.buttonCalc);
CalcBtn.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View v) {
Intent intent = new Intent(MainActivity.this,Calculator.class);
startActivity(intent);
}
});
Button NoteBtn = (Button) findViewById(R.id.buttonNotes);
NoteBtn.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View v) {
Intent intent = new Intent(MainActivity.this,NoteMain.class);
startActivity(intent);
}
});
}
public void setupConverterButton(){
buttonConverter = (Button) findViewById(R.id.butonConverter);
// Button messageButton = (Button) findViewById(R.id.butonConverter);
}
public void CentToInch(){
buttonConverter.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
//opening the
try{
Class centClass = Class
.forName("com.qub.buildersbuddy.CentInch");
Intent myintent = new Intent(MainActivity.this,centClass);
startActivity(myintent);
}catch (ClassNotFoundException e){
e.printStackTrace();
}
}
});
}
public void setupCalculatorButton(){
buttonCalculator = (Button) findViewById(R.id.buttonCalc);
// Button messageButton = (Button) findViewById(R.id.butonConverter);
}
public void Calculator(){
buttonCalculator.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
//opening the
try{
Class calcClass = Class
.forName("com.qub.buildersbuddy.Calculator");
Intent myintent = new Intent(MainActivity.this,calcClass);
startActivity(myintent);
}catch (ClassNotFoundException e){
e.printStackTrace();
}
}
});
}
public void setupNotesButton(){
buttonNotePad = (Button) findViewById(R.id.buttonNotes);
// Button messageButton = (Button) findViewById(R.id.butonConverter);
}
public void Notes(){
buttonNotePad.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
//opening the
try{
Class NoteMain = Class
.forName("com.qub.buildersbuddy.NoteMain");
Intent myintent = new Intent(MainActivity.this,NoteMain);
startActivity(myintent);
}catch (ClassNotFoundException e){
e.printStackTrace();
}
}
});
}
}
NoteMain
package com.qub.buildersbuddy;
import java.util.ArrayList;
import java.util.Map;
import java.util.Map.Entry;
import android.app.Activity;
import android.content.Context;
import android.content.Intent;
import android.content.SharedPreferences;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.Button;
import android.widget.ListView;
public class NoteMain extends Activity implements OnItemClickListener, OnClickListener {
private SharedPreferences spNotes;
private ArrayList<Note> notes;
private Button addNote;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_note_main);
this.addNote = (Button) findViewById(R.id.addNoteButton);
this.addNote.setOnClickListener(this);
spNotes = getSharedPreferences("notes", Context.MODE_PRIVATE);
}
#Override
protected void onResume() {
super.onResume();
showNotes();
ListView list = (ListView) findViewById(R.id.listNotes);
CustomAdapter aa = new CustomAdapter(this, getLayoutInflater(), this.notes, spNotes);
list.setAdapter(aa);
list.setOnItemClickListener(this);
}
private void showNotes() {
this.notes = new ArrayList<Note>();
Map map = spNotes.getAll();
for (Object o : map.entrySet()) {
Entry e = (Entry<String, String>) o;
this.notes.add(new Note((String)e.getKey(), (String)e.getValue()));
}
}
#Override
public void onItemClick(AdapterView<?> arg0, View arg1, int position, long id) {
Intent intent = new Intent(this, NoteActivity.class);
intent.putExtra("title", this.notes.get(position).getTitle());
intent.putExtra("text", this.notes.get(position).getText());
startActivity(intent);
}
#Override
public void onClick(View arg0) {
Intent intent = new Intent(this, NoteActivity.class);
startActivity(intent);
}
}
AndroidManifest
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.qub.buildersbuddy"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk
android:minSdkVersion="8"
android:targetSdkVersion="18" />
<application
android:allowBackup="true"
android:icon="#drawable/ic_launcher"
android:label="#string/app_name"
android:theme="#style/AppTheme" >
<activity
android:name="com.qub.buildersbuddy.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.qub.buildersbuddy.CentInch"
android:label="#string/title_activity_cent_inch" >
</activity>
<activity
android:name="com.qub.buildersbuddy.Calculator"
android:label="#string/title_activity_calculator" >
</activity>
<activity
android:name="com.qub.buildersbuddy.NotePad"
android:label="#string/title_activity_note" >
</activity>
</application>
</manifest>

Its probably because you don't have the NoteMain activity defined in your Manifest.
<activity
android:name="com.qub.buildersbuddy.NoteMain"
android:label="#string/title_activity_note" >
</activity>