I am trying to make a popup dialog that only shows after the app's first run that will alert users of the new changes in the app. So I have a dialog popup like this:
new AlertDialog.Builder(this).setTitle("First Run").setMessage("This only pops up once").setNeutralButton("OK", null).show();
Once they dismiss it, it won't come back until the next update or they reinstall the app.
How can I set the dialog code above to run only once?
Use SharedPreferences to store the isFirstRun value, and check in your launching activity against that value.
If the value is set, then no need to display the dialog. If else, display the dialog and save the isFirstRun flag in SharedPreferences.
Example:
public void checkFirstRun() {
boolean isFirstRun = getSharedPreferences("PREFERENCE", MODE_PRIVATE).getBoolean("isFirstRun", true);
if (isFirstRun){
// Place your dialog code here to display the dialog
getSharedPreferences("PREFERENCE", MODE_PRIVATE)
.edit()
.putBoolean("isFirstRun", false)
.apply();
}
}
While the general idea of the other answers is sound, you should keep in the shared preferences not a boolean, but a timestamp of when was the last time the first run had happened, or the last app version for which it happened.
The reason for this is you'd likely want to have the first run dialog run also whenthe app was upgraded. If you keep only a boolean, on app upgrade, the value will still be true, so there's no way for your code code to know if it should run it again or not.
Like this you can make a difference between a new install and a update.
String StoredVersionname = "";
String VersionName;
AlertDialog LoginDialog;
AlertDialog UpdateDialog;
AlertDialog FirstRunDialog;
SharedPreferences prefs;
public static String getVersionName(Context context, Class cls) {
try {
ComponentName comp = new ComponentName(context, cls);
PackageInfo pinfo = context.getPackageManager().getPackageInfo(
comp.getPackageName(), 0);
return "Version: " + pinfo.versionName;
} catch (android.content.pm.PackageManager.NameNotFoundException e) {
return null;
}
}
public void CheckFirstRun() {
VersionName = MyActivity.getVersionName(this, MyActivity.class);
prefs = PreferenceManager.getDefaultSharedPreferences(this);
StoredVersionname = (prefs.getString("versionname", null));
if (StoredVersionname == null || StoredVersionname.length() == 0){
FirstRunDialog = new FirstRunDialog(this);
FirstRunDialog.show();
}else if (StoredVersionname != VersionName) {
UpdateDialog = new UpdateDialog(this);
UpdateDialog.show();
}
prefs.edit().putString("versionname", VersionName).commit();
}
I use this to display a help dialog on first run. I don't want this to show after an update. That is better suited for a changelog.
private void doFirstRun() {
SharedPreferences settings = getSharedPreferences(PREFS_NAME, MODE_PRIVATE);
if (settings.getBoolean("isFirstRun", true)) {
showDialog(DIALOG_HELP);
SharedPreferences.Editor editor = settings.edit();
editor.putBoolean("isFirstRun", false);
editor.commit();
}
}
There is no actual question, but I assume you want to know how to achieve the intended effect. If that's the case, then use a SharedPreference object to get a boolean 'first run' which defaults to true, and set it to false just after the first run.
loginPreferences = getSharedPreferences("loginPrefs", MODE_PRIVATE);
loginPrefsEditor = loginPreferences.edit();
doFirstRun();
private void doFirstRun() {
SharedPreferences settings = getSharedPreferences("PREFERENCE", MODE_PRIVATE);
if (settings.getBoolean("isFirstRun", true)) {
loginPrefsEditor.clear();
loginPrefsEditor.commit();
SharedPreferences.Editor editor = settings.edit();
editor.putBoolean("isFirstRun", false);
editor.commit();
}
}
I used this code to ensure that its the first time someone runs the application. The loginPrefsEditor is cleared from data because i have a "Remember Me" Button which stores the data to the sd card. Hope it helps !
Related
I have an activity that i only want to run when the application is ran for the first time.
And never again. It is a facebook login activity. I only want to launch it once when the app is initially opened for the first time.
How do i go about doing this?
What I've generally done is add a check for a specific shared preference in the Main Activity : if that shared preference is missing then launch the single-run Activity, otherwise continue with the main activity . When you launch the single run Activity create the shared preference so it gets skipped next time.
EDIT : In my onResume for the default Activity I do this:
SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(getBaseContext());
boolean previouslyStarted = prefs.getBoolean(getString(R.string.pref_previously_started), false);
if(!previouslyStarted) {
SharedPreferences.Editor edit = prefs.edit();
edit.putBoolean(getString(R.string.pref_previously_started), Boolean.TRUE);
edit.commit();
showHelp();
}
Basically I load the default shared preferences and look for the previously_started boolean preference. If it hasn't been set I set it and then launch the help file. I use this to automatically show the help the first time the app is installed.
Post the following code within your onCreate statement
Boolean isFirstRun = getSharedPreferences("PREFERENCE", MODE_PRIVATE)
.getBoolean("isFirstRun", true);
if (isFirstRun) {
//show start activity
startActivity(new Intent(MainActivity.this, FirstLaunch.class));
Toast.makeText(MainActivity.this, "First Run", Toast.LENGTH_LONG)
.show();
}
getSharedPreferences("PREFERENCE", MODE_PRIVATE).edit()
.putBoolean("isFirstRun", false).commit();
Replace FirstLaunch.class with the class that you would like to launch
something like this might work.
public class MyPreferences {
private static final String MY_PREFERENCES = "my_preferences";
public static boolean isFirst(Context context){
final SharedPreferences reader = context.getSharedPreferences(MY_PREFERENCES, Context.MODE_PRIVATE);
final boolean first = reader.getBoolean("is_first", true);
if(first){
final SharedPreferences.Editor editor = reader.edit();
editor.putBoolean("is_first", false);
editor.commit();
}
return first;
}
}
usage
boolean isFirstTime = MyPreferences.isFirst(CurrentActivity.this);
if (isFirstTime) {
NewActivity.show(CurrentActivity.this);
}
...
public class NewActivity extends Activity {
public static void show(Context context) {
final Intent intent = new Intent(context, NewActivity.class);
context.startActivity(intent);
}
}
SharedPreferences dataSave = getSharedPreferences("firstLog", 0);
if(dataSave.getString("firstTime", "").toString().equals("no")){ // first run is happened
}
else{ // this is the first run of application
SharedPreferences.Editor editor = dataSave.edit();
editor.putString("firstTime", "no");
editor.commit();
}
I had done this without Shared Prefrence...as I know shared prefrence consumes some memory so I used public static boolean variable in global class....First I made Global Class Appconfig...and then I made boolean static variable like this :
public class Appconfig {
public static boolean activity = false;
}
then I used this public static boolean variable into my welcome Activity class. I am Using License agreement page. which I have to use only at once in my application then never display further whenever i run the application. so i had put condtion in welcome activity...if the welcome class run first time so the static boolean variable is false...
if (Appconfig.activity == false) {
Intent intent = new Intent();
intent.setClass(WelcomeActivity.this,LicesnceActivity.class);
startActivity(intent);
WelcomeActivity.this.finish();
}
if (Appconfig.activity == true) {
Intent intent = new Intent();
intent.setClass(WelcomeActivity.this, MainActivity.class);
startActivity(intent);
}
Now at Licesnce Activity class I made :
Appconfig.activity=true;
So whenever I run the Application the second activity "Main activity" run after Welcome activity not License Activity....
Declared in the globally
public int count=0
int tempInt = 0;
in your onCreate function past this code at first.
count = readSharedPreferenceInt("cntSP","cntKey");
if(count==0){
Intent intent = new Intent();
intent.setClass(MainActivity.this, TemporaryActivity.class);
startActivity(intent);
count++;
writeSharedPreference(count,"cntSP","cntKey");
}
Past these two method outside of onCreate
//Read from Shared Preferance
public int readSharedPreferenceInt(String spName,String key){
SharedPreferences sharedPreferences = getSharedPreferences(spName,Context.MODE_PRIVATE);
return tempInt = sharedPreferences.getInt(key, 0);
}
//write shared preferences in integer
public void writeSharedPreference(int ammount,String spName,String key ){
SharedPreferences sharedPreferences = getSharedPreferences(spName, Context.MODE_PRIVATE);
SharedPreferences.Editor editor = sharedPreferences.edit();
editor.putInt(key, ammount);
editor.commit();
}
This is my code to bring the OnBoarding Activity for the first time. If it's not the first time then go directly to the Home Activity.
private void checkFirstOpen(){
Boolean isFirstRun = getSharedPreferences("PREFERENCE", MODE_PRIVATE)
.getBoolean("isFirstRun", true);
if (!isFirstRun) {
Intent intent = new Intent(OnBoardingScreen.this, Home.class);
startActivity(intent);
finish();
}
getSharedPreferences("PREFERENCE", MODE_PRIVATE).edit().putBoolean("isFirstRun",
false).apply();
}
I am developing an android application which should authenticate user only once in his mobile after installing the app. It should not ask the details for the second time. For this I have used shared preferences by setting a Boolean value. But it,s not working. Is there any suggestions here.. thanks friends !! My code is here
SharedPreferences prefs=PreferenceManager.getDefaultSharedPreferences(getApplicationContext());
SharedPreferences.Editor editor=prefs.edit();
editor.putBoolean("Register", true);
editor.commit();
use it this way :
in your onCreate() use :
if (isFirstTime()) {
// do what you want to do only once
}
to call the below :
private boolean isFirstTime()
{
SharedPreferences preferences = getPreferences(MODE_PRIVATE);
boolean ranBefore = preferences.getBoolean("RanBefore", false);
if (!ranBefore) {
// first time
SharedPreferences.Editor editor = preferences.edit();
editor.putBoolean("RanBefore", true);
editor.commit();
}
return !ranBefore;
}
Your approach of using SharedPreference is correct.Put the below coad snippet in your oncreate() method of the Activity.
SharedPreferences prefs=PreferenceManager.getDefaultSharedPreferences(getApplicationContext());
register = prefs.getBoolean("Register",false);
if(!register)
{
//register user
SharedPreferences.Editor editor=prefs.edit();
editor.putBoolean("Register", register);
editor.commit();
}
else{
//continue with the rest
}
the first time :
settings.edit().putBoolean("Register", true).commit();
and in onCreate you do the test
if(!settings.getBoolean("Register",false))
//it isn't the first time
So the full code :
SharedPreferences settings = getSharedPreferences("settings", 0);
if(!settings.getBoolean("Register",false)){
//it isn't the first time
}
else{
settings.edit().putBoolean("Register", true).commit();
}
I want to run AsyncTask in android only once when application starts for the first time.
I tried to put Shared preference in onCreate but it didn't work. Any other ideas ?
SharedPreferences prefscrt = PreferenceManager.getDefaultSharedPreferences(this);
if(!prefscrt.getBoolean("firstTime", false)) {
Log.d("DownloadManager", "Installing First Time");
new Task().execute(); //THIS WON'T WORK
SharedPreferences.Editor editor = prefscrt.edit();
editor.putBoolean("firstTime", true);
editor.commit();
}
Thanks in advance
Madz
Try this code :
SharedPreferences prefs = getSharedPreferences("firstTime", MODE_PRIVATE);
registartion = prefs.getBoolean("firstTime", false);
and now put your if condition
1.First check the value is null or not if null then sharedpref use and save them..
2.But in second time again check if they have already sharedpref run your code .
private Boolean firstTime = null;
SharedPreferences mPreferences = this.getSharedPreferences("first_time", Context.MODE_PRIVATE);
firstTime = mPreferences.getBoolean("firstTime", true);
private boolean isFirstTime() {
if(firstTime == null) {
SharedPreferences.Editor editor = mPreferences.edit();
editor.putBoolean("firstTime", false);
editor.commit();
new Task().execute();
if (firstTime!=null) {
}
}
return firstTime;
}
When my android app starts there will be a prompt that asks user whether to upgrade to newer version or not.I used an alertbox to display it.I have two buttons in it, "Upgrade" and "No thanks".Then I added a checkbox to it.And the label for that check box is "Dont ask me again". When user click on that checkbox,that should be remembered and the prompt shouldnt asked again.Can anyone suggest me a solution to achieve this?
The Best option you can go for is of SharedPreference. You can Save the in Internal Database.
PackageInfo info = getPackageManager().getPackageInfo(PACKAGE_NAME, 0);
int currentVersion = info.versionCode;
// version name here for display in the about box later.
this.sVersionName = info.versionName;
SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(this);
int lastVersion = prefs.getInt("Key", 0);
if (currentVersion > lastVersion) {
prefs.edit().putInt("key",currentVersion).commit();
Intent intent = new Intent(this, StartUp.class);
intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_WHEN_TASK_RESET)
// Your Code goes here if you want to Display it Only Once.
return true;
}
EDIT
SavePreferences("MEMORY1","Your String Here");
private void SavePreferences(String key, String value) {
SharedPreferences settings = getSharedPreferences(pref, 0);
SharedPreferences.Editor editor = settings.edit();
editor.putString(key, value);
editor.commit();
}
private void LoadPreferences() {
SharedPreferences settings = getSharedPreferences(Settings.pref, 0);
String sDefault_Card = settings.getString("MEMORY1", "");
}
Use SharedPreferences and save / retrieve boolean value to indicate checked / uncheked state
You could use SharedPreferences to store user's selection:
SharedPreferences preferences =
PreferenceManager.getDefaultSharedPreferences(getBaseContext());
boolean showPrompt = preferences.getBoolean("Show_Prompt", true);
i need to save a simple field to configurate my APP, cause this, i wont use a database (it's only a field...), i need to save true or false value for this field on a file, and everytimes a section of my app wanna check if it is true they have to check this textfile, and not to open a connexion to a database
i need to save the config for ever... i mean that when i exit from my app, and for example, i shut down my android device, when i start my device again and start my app, the config have to be saved
is this possible? how can i do it? i can't find any information about that
EDIT: i have problems with the first answer... this code is on my oncreate method:
static SharedPreferences settings;
static SharedPreferences.Editor configEditor;
settings = this.getPreferences(MODE_WORLD_WRITEABLE);
if (settings.getBoolean("showMeCheckBox", true))
showMeCheckBox.setChecked(true);
else
showMeCheckBox.setChecked(false);
applyButton.setOnClickListener(new OnClickListener() {
public void onClick(View v) {
// Perform action on clicks
if (showMeCheckBox.isChecked()) {
configEditor.putBoolean("showMeCheckBox", true);
} else {
configEditor.putBoolean("showMeCheckBox", false);
}
}
});
ok, but this doesn't works... allways is selected... always true, like the default value... doesn't matter if i checked or unchecked it.... :S
i suggest not to use a textfile but the Preference Editor.
static SharedPreferences settings;
static SharedPreferences.Editor editor;
settings = this.getPreferences(MODE_WORLD_WRITEABLE);
editor = settings.edit();
//store value
editor.putString("Preference_name_1", "1");
//get value
//eill return "0" if preference not exists, else return stored value
String val = settings.getString("Preference_name_1", "0");
Edit: you have to initialize the configEditor and after setting a value, you have to commit
editor = settings.edit();
editor.putBoolean("name",true);
editor.commit();