Develop Reference

RecyclerView of Button array - How to update the data?

This is my first Q on the site, I'll try to form it well.
I have a recyclerView, and the Item is an array of buttons.
Button click shows a popup menu that allows the user to change the color of the button.
I've managed to set that the onClick method will change the color, but I'm clueless about how to save the chosen color in the ButtonArrayList, that Holds the colors.
The problem is that when the button is pressed, I don't know how to understand programatically on which button, in which button array it was pressed.
Thanks!
Just to demonstrate the problem. when button is clicked, How to identify which button of which item was clicked?
1
The code of the fragment:
package com.examples.recyclerViewWithButtonArray;
import android.os.Build;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import androidx.annotation.NonNull;
import androidx.annotation.Nullable;
import androidx.annotation.RequiresApi;
import androidx.fragment.app.Fragment;
import androidx.recyclerview.widget.LinearLayoutManager;
import androidx.recyclerview.widget.RecyclerView;
import com.google.android.material.floatingactionbutton.FloatingActionButton;
import java.util.LinkedList;
/**
* A simple {#link Fragment} subclass.
* Use the {#link Game#newInstance} factory method to
* create an instance of this fragment.
*/
public class Game extends Fragment {
// TODO: Rename parameter arguments, choose names that match
protected static int[] mButtonsColors;
private final LinkedList<ButtonArray> mButtonArrayList = new LinkedList<>();
RecyclerView mGuessLinesRecyclerView;
ButtonArrayListAdapter mButtonArrayListAdapter;
FloatingActionButton mFab;
// TODO: Rename and change types of parameters
public Game() {
// Required empty public constructor
}
public static Game newInstance(String param1, String param2) {
Game fragment = new Game();
return fragment;
}
private void initGameColors(){
mButtonsColors = new int[4];
int[] c = getContext().getResources().getIntArray(R.array.buttonColors);
//asign colors
for (int i = 0; i < 4; i++) {
this.mButtonsColors[i] = c[i];
}
}
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
initGameColors();
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
// Inflate the layout for this fragment
View vw = inflater.inflate(R.layout.fragment_game, container, false);
return vw;
}
#RequiresApi(api = Build.VERSION_CODES.M)
#Override
public void onViewCreated(#NonNull View view, #Nullable Bundle savedInstanceState) {
super.onViewCreated(view, savedInstanceState);
mGuessLinesRecyclerView = view.findViewById(R.id.recycler_view);
mFab = view.findViewById(R.id.fab);
//initialize recyclerView
// Create an adapter and supply the data to be displayed.
mButtonArrayListAdapter = new ButtonArrayListAdapter(getContext(), mButtonArrayList, this);
// Connect the adapter with the RecyclerView.
mGuessLinesRecyclerView.setAdapter(mButtonArrayListAdapter);
// Give the RecyclerView a default layout manager.
mGuessLinesRecyclerView.setLayoutManager(new LinearLayoutManager(getContext()));
//initializeFAB
mFab.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
mButtonArrayList.add(new ButtonArray(getContext(),mButtonsColors));
mGuessLinesRecyclerView.setAdapter(mButtonArrayListAdapter);
}
});
//add first array to the recycler view.
// Next guess lines will be added when clicking on movableFab
mButtonArrayList.add(new ButtonArray(getContext(), this.mButtonsColors));
}
}
The code of ButtonArrayListAdapter:
package com.examples.recyclerViewWithButtonArray;
import android.content.Context;
import android.graphics.drawable.ColorDrawable;
import android.view.Gravity;
import android.view.LayoutInflater;
import android.view.MotionEvent;
import android.view.View;
import android.view.ViewGroup;
import android.widget.Button;
import android.widget.LinearLayout;
import android.widget.PopupWindow;
import androidx.annotation.NonNull;
import androidx.recyclerview.widget.RecyclerView;
import java.util.ArrayList;
import java.util.List;
public class ButtonArrayListAdapter extends RecyclerView.Adapter<ButtonArrayListAdapter.ButtonArrayViewHolder> {
private final Context mContext;
private final List<ButtonArray> mData;
class ButtonArrayViewHolder extends RecyclerView.ViewHolder {
public ArrayList<Button> mButtons;
final ButtonArrayListAdapter mAdapter;
public ButtonArrayViewHolder(#NonNull View itemView, ButtonArrayListAdapter adapter) {
super(itemView);
this.mAdapter = adapter;
mButtons =new ArrayList<>();
if(4==4)
{
//create an array of button for binding
mButtons.add((Button)itemView.findViewById(R.id.button_Guess1));
mButtons.add((Button)itemView.findViewById(R.id.button_Guess2));
mButtons.add((Button)itemView.findViewById(R.id.button_Guess3));
mButtons.add((Button)itemView.findViewById(R.id.button_Guess4));
}
}
}
public ButtonArrayListAdapter(Context mContext, List<ButtonArray> mData, Game mGame) {
this.mContext = mContext;
this.mData = mData;
}
#NonNull
#Override
public ButtonArrayViewHolder onCreateViewHolder(#NonNull ViewGroup parent, int viewType) {
View layout;
layout = LayoutInflater.from(mContext).inflate(R.layout.guess_line,parent,false);
return new ButtonArrayViewHolder(layout,this);
}
#Override
public void onBindViewHolder(#NonNull final ButtonArrayViewHolder buttonArrayViewHolder, final int position) {
//bind data here
//initiate each guessLineButton
for (int i = 0; i < 4; i++) {
int c = mData.get(position).mAnswerButtonsColors[i];
final Button bt = buttonArrayViewHolder.mButtons.get(i);
//set initial button color
bt.setBackgroundColor(c);
//set button clik to open color chooser
bt.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
int[] chooseColorButtons = new int[4];
// inflate the layout of the popup window
final View popupView = LayoutInflater.from(mContext).inflate(R.layout.choose_color_popup,null);
// create the popup window
int width = bt.getWidth();
int height = LinearLayout.LayoutParams.WRAP_CONTENT;
boolean focusable = true; // lets taps outside the popup also dismiss it
final PopupWindow popupWindow = new PopupWindow(popupView, width, height, focusable);
// show the popup window
// which view you pass in doesn't matter, it is only used for the window tolken
int[] loc = new int[]{0,0};
bt.getLocationOnScreen(loc);
popupWindow.showAtLocation(v, Gravity.TOP|Gravity.LEFT, loc[0], loc[1] + bt.getHeight());
// dismiss the popup window when touched
popupView.setOnTouchListener(new View.OnTouchListener() {
#Override
public boolean onTouch(View v, MotionEvent event) {
popupWindow.dismiss();
return true;
}
});
//initiate each color choose button
if(chooseColorButtons.length==4) {
chooseColorButtons[0] = R.id.buttonColor1;
chooseColorButtons[1] = R.id.buttonColor2;
chooseColorButtons[2] = R.id.buttonColor3;
chooseColorButtons[3] = R.id.buttonColor4;
}
for (int j = 0; j < 4 ; j++) {
Button colbt = (Button)(popupView.findViewById(chooseColorButtons[j]));
colbt.setBackgroundColor(Game.mButtonsColors[j]);
colbt.setTextColor(Game.mButtonsColors[j]);
colbt.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
bt.setBackgroundColor(((ColorDrawable)(((Button)v).getBackground())).getColor());
//WHAT SHOULD I DO HERE?
popupWindow.dismiss();
}
});
}
}
});
}
}
#Override
public int getItemCount() {
return mData.size();
}
}

After reading your question what I get is you want to save the color against every button so next time when that button click the same color should load if yes then you can consider these tw0 suggestions
1- if the number of buttons is static and you are not adding them dynamically then you can hardcode the color against each button by adding them in the list and assign them manually against each button.
2- you can use key-value pair(hash map), these are the best solution for any case either you're are manually adding the button or dynamically, just store the color against each key. In this case, buttons should be your keys and colors will be value.
Thanku

package android.support.v4.view does not exist, even after adding the dependencies for it

I have a project which is currently on AndroidX, I'm trying to implement an activity which is an introduction activity to show the user how to use the app. This uses the v4 support library packages which I have placed in the libs folder, as well as the build.gradle.
Here are the dependencies which I'm using in the build.gradle:
dependencies {
implementation fileTree(include: ['*.jar'], dir: 'libs')
implementation 'androidx.appcompat:appcompat:1.1.0-alpha01'
implementation 'androidx.legacy:legacy-support-v4:1.0.0'
implementation 'com.google.android.material:material:1.1.0-alpha02'
implementation 'androidx.constraintlayout:constraintlayout:2.0.0-alpha3'
testImplementation 'junit:junit:4.12'
androidTestImplementation 'androidx.test:runner:1.1.1'
androidTestImplementation 'androidx.test.espresso:espresso-core:3.1.1'
implementation 'com.squareup.picasso:picasso:2.71828'
implementation 'com.google.firebase:firebase-database:16.0.5'
implementation 'com.firebaseui:firebase-ui-database:2.1.0'
implementation 'com.google.firebase:firebase-core:16.0.5'
implementation 'com.firebaseui:firebase-ui-auth:4.1.0'
implementation 'com.google.firebase:firebase-auth:16.0.5'
implementation 'com.synnapps:carouselview:0.1.5'
implementation 'com.github.m7mdra:HtmlRecycler:0.1.11'
implementation 'com.google.firebase:firebase-auth:16.0.5'
// Facebook Android SDK (only required for Facebook Login)
// Used in FacebookLoginActivity.
implementation 'com.facebook.android:facebook-login:4.38.1'
implementation 'androidx.browser:browser:1.0.0'
implementation 'com.facebook.android:facebook-android-sdk:[4,5)'
implementation files('libs/android-support-v4.jar')
implementation 'com.android.support:support-v4:28.0.0'
}
Updated code for the WelcomeActivity.java where the errors are being displayed:
import android.content.Context;
import android.content.Intent;
import android.graphics.Color;
import android.os.Build;
import android.os.Bundle;
import android.text.Html;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.view.Window;
import android.view.WindowManager;
import android.widget.Button;
import android.widget.LinearLayout;
import android.widget.TextView;
import androidx.appcompat.app.AppCompatActivity;
import androidx.viewpager.widget.PagerAdapter;
import androidx.viewpager.widget.ViewPager;
public class WelcomeActivity extends AppCompatActivity {
private ViewPager viewPager;
private MyViewPagerAdapter myViewPagerAdapter;
private LinearLayout dotsLayout;
private TextView[] dots;
private int[] layouts;
private Button btnSkip, btnNext;
private PreferenceManager prefManager;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
// Checking for first time launch - before calling setContentView()
prefManager = new PreferenceManager(this);
if (!prefManager.isFirstTimeLaunch()) {
launchHomeScreen();
finish();
}
// Making notification bar transparent
if (Build.VERSION.SDK_INT >= 21) {
getWindow().getDecorView().setSystemUiVisibility(View.SYSTEM_UI_FLAG_LAYOUT_STABLE | View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN);
}
setContentView(R.layout.activity_welcome);
viewPager = (androidx.viewpager.widget.ViewPager) findViewById(R.id.view_pager);
dotsLayout = (LinearLayout) findViewById(R.id.layoutDots);
btnSkip = (Button) findViewById(R.id.btn_skip);
btnNext = (Button) findViewById(R.id.btn_next);
// layouts of all welcome sliders
// add few more layouts if you want
layouts = new int[]{
R.layout.slide_screen1,
R.layout.slide_screen2,
R.layout.slide_screen3};
// adding bottom dots
addBottomDots(0);
// making notification bar transparent
changeStatusBarColor();
myViewPagerAdapter = new MyViewPagerAdapter();
viewPager.setAdapter(myViewPagerAdapter);
viewPager.addOnPageChangeListener(viewPagerPageChangeListener);
btnSkip.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
launchHomeScreen();
}
});
btnNext.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
// checking for last page
// if last page home screen will be launched
int current = getItem(+1);
if (current < layouts.length) {
// move to next screen
viewPager.setCurrentItem(current);
} else {
launchHomeScreen();
}
}
});
}
private void addBottomDots(int currentPage) {
dots = new TextView[layouts.length];
int[] colorsActive = getResources().getIntArray(R.array.array_dot_active);
int[] colorsInactive = getResources().getIntArray(R.array.array_dot_inactive);
dotsLayout.removeAllViews();
for (int i = 0; i < dots.length; i++) {
dots[i] = new TextView(this);
dots[i].setText(Html.fromHtml("•"));
dots[i].setTextSize(35);
dots[i].setTextColor(colorsInactive[currentPage]);
dotsLayout.addView(dots[i]);
}
if (dots.length > 0)
dots[currentPage].setTextColor(colorsActive[currentPage]);
}
private int getItem(int i) {
return viewPager.getCurrentItem() + i;
}
private void launchHomeScreen() {
prefManager.setFirstTimeLaunch(false);
startActivity(new Intent(WelcomeActivity.this, GoogleSignInActivity.class));
finish();
}
// viewpager change listener
ViewPager.OnPageChangeListener viewPagerPageChangeListener = new ViewPager.OnPageChangeListener() {
#Override
public void onPageSelected(int position) {
addBottomDots(position);
// changing the next button text 'NEXT' / 'GOT IT'
if (position == layouts.length - 1) {
// last page. make button text to GOT IT
btnNext.setText(getString(R.string.start));
btnSkip.setVisibility(View.GONE);
} else {
// still pages are left
btnNext.setText(getString(R.string.next));
btnSkip.setVisibility(View.VISIBLE);
}
}
#Override
public void onPageScrolled(int arg0, float arg1, int arg2) {
}
#Override
public void onPageScrollStateChanged(int arg0) {
}
};
/**
* Making notification bar transparent
*/
private void changeStatusBarColor() {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
Window window = getWindow();
window.addFlags(WindowManager.LayoutParams.FLAG_DRAWS_SYSTEM_BAR_BACKGROUNDS);
window.setStatusBarColor(Color.TRANSPARENT);
}
}
/**
* View pager adapter
*/
public class MyViewPagerAdapter extends PagerAdapter {
private LayoutInflater layoutInflater;
public MyViewPagerAdapter() {
}
#Override
public Object instantiateItem(ViewGroup container, int position) {
layoutInflater = (LayoutInflater) getSystemService(Context.LAYOUT_INFLATER_SERVICE);
View view = layoutInflater.inflate(layouts[position], container, false);
container.addView(view);
return view;
}
#Override
public int getCount() {
return layouts.length;
}
#Override
public boolean isViewFromObject(View view, Object obj) {
return view == obj;
}
#Override
public void destroyItem(ViewGroup container, int position, Object object) {
View view = (View) object;
container.removeView(view);
}
}
}
The errors being displayed are:
package android.support.v4.view does not exist
package android.support.v4.view.ViewPager does not exist

package android.support.v4.view does not exist, even after adding the dependencies for it
You are using dependencies of androidx and in your activity you have used the ViewPager of android.support.v4 thats the reason you are getting error
SOLUTION
Remove All of android.support.v4.view.ViewPager
Import below in your activity
import androidx.viewpager.widget.ViewPager;
Than
Use this
ViewPager viewPager;
Instead of
private android.support.v4.view.ViewPager viewPager;
UPDATE
ViewPager.OnPageChangeListener viewPagerPageChangeListener = new ViewPager.OnPageChangeListener() {
#Override
public void onPageSelected(int position) {
addBottomDots(position);
// changing the next button text 'NEXT' / 'GOT IT'
if (position == layouts.length - 1) {
// last page. make button text to GOT IT
btnNext.setText(getString(R.string.start));
btnSkip.setVisibility(View.GONE);
} else {
// still pages are left
btnNext.setText(getString(R.string.next));
btnSkip.setVisibility(View.VISIBLE);
}
}
#Override
public void onPageScrolled(int arg0, float arg1, int arg2) {
}
#Override
public void onPageScrollStateChanged(int arg0) {
}
};
UPDATE 2
Use this import androidx.viewpager.widget.PagerAdapter;
Use this
import android.content.Context;
import android.content.Intent;
import android.graphics.Color;
import android.os.Build;
import android.os.Bundle;
import android.text.Html;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.view.Window;
import android.view.WindowManager;
import android.widget.Button;
import android.widget.LinearLayout;
import android.widget.TextView;
import androidx.appcompat.app.AppCompatActivity;
import androidx.viewpager.widget.PagerAdapter;
import androidx.viewpager.widget.ViewPager;
public class WelcomeActivity extends AppCompatActivity {
private ViewPager viewPager;
private MyViewPagerAdapter myViewPagerAdapter;
private LinearLayout dotsLayout;
private TextView[] dots;
private int[] layouts;
private Button btnSkip, btnNext;
private PreferenceManager prefManager;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
// Checking for first time launch - before calling setContentView()
prefManager = new PreferenceManager(this);
if (!prefManager.isFirstTimeLaunch()) {
launchHomeScreen();
finish();
}
// Making notification bar transparent
if (Build.VERSION.SDK_INT >= 21) {
getWindow().getDecorView().setSystemUiVisibility(View.SYSTEM_UI_FLAG_LAYOUT_STABLE | View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN);
}
setContentView(R.layout.activity_welcome);
viewPager = (androidx.viewpager.widget.ViewPager) findViewById(R.id.view_pager);
dotsLayout = (LinearLayout) findViewById(R.id.layoutDots);
btnSkip = (Button) findViewById(R.id.btn_skip);
btnNext = (Button) findViewById(R.id.btn_next);
// layouts of all welcome sliders
// add few more layouts if you want
layouts = new int[]{
R.layout.slide_screen1,
R.layout.slide_screen2,
R.layout.slide_screen3};
// adding bottom dots
addBottomDots(0);
// making notification bar transparent
changeStatusBarColor();
myViewPagerAdapter = new MyViewPagerAdapter();
viewPager.setAdapter(myViewPagerAdapter);
viewPager.addOnPageChangeListener(new ViewPager.OnPageChangeListener() {
#Override
public void onPageSelected(int position) {
addBottomDots(position);
// changing the next button text 'NEXT' / 'GOT IT'
if (position == layouts.length - 1) {
// last page. make button text to GOT IT
btnNext.setText(getString(R.string.start));
btnSkip.setVisibility(View.GONE);
} else {
// still pages are left
btnNext.setText(getString(R.string.next));
btnSkip.setVisibility(View.VISIBLE);
}
}
#Override
public void onPageScrolled(int arg0, float arg1, int arg2) {
}
#Override
public void onPageScrollStateChanged(int arg0) {
}
});
btnSkip.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
launchHomeScreen();
}
});
btnNext.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
// checking for last page
// if last page home screen will be launched
int current = getItem(+1);
if (current < layouts.length) {
// move to next screen
viewPager.setCurrentItem(current);
} else {
launchHomeScreen();
}
}
});
}
private void addBottomDots(int currentPage) {
dots = new TextView[layouts.length];
int[] colorsActive = getResources().getIntArray(R.array.array_dot_active);
int[] colorsInactive = getResources().getIntArray(R.array.array_dot_inactive);
dotsLayout.removeAllViews();
for (int i = 0; i < dots.length; i++) {
dots[i] = new TextView(this);
dots[i].setText(Html.fromHtml("•"));
dots[i].setTextSize(35);
dots[i].setTextColor(colorsInactive[currentPage]);
dotsLayout.addView(dots[i]);
}
if (dots.length > 0)
dots[currentPage].setTextColor(colorsActive[currentPage]);
}
private int getItem(int i) {
return viewPager.getCurrentItem() + i;
}
private void launchHomeScreen() {
prefManager.setFirstTimeLaunch(false);
startActivity(new Intent(WelcomeActivity.this, GoogleSignInActivity.class));
finish();
}
// viewpager change listener
/**
* Making notification bar transparent
*/
private void changeStatusBarColor() {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
Window window = getWindow();
window.addFlags(WindowManager.LayoutParams.FLAG_DRAWS_SYSTEM_BAR_BACKGROUNDS);
window.setStatusBarColor(Color.TRANSPARENT);
}
}
/**
* View pager adapter
*/
public class MyViewPagerAdapter extends PagerAdapter {
private LayoutInflater layoutInflater;
public MyViewPagerAdapter() {
}
#Override
public Object instantiateItem(ViewGroup container, int position) {
layoutInflater = (LayoutInflater) getSystemService(Context.LAYOUT_INFLATER_SERVICE);
View view = layoutInflater.inflate(layouts[position], container, false);
container.addView(view);
return view;
}
#Override
public int getCount() {
return layouts.length;
}
#Override
public boolean isViewFromObject(View view, Object obj) {
return view == obj;
}
#Override
public void destroyItem(ViewGroup container, int position, Object object) {
View view = (View) object;
container.removeView(view);
}
}
}

First try to replace
implementation 'com.android.support:support-v4:28.0.0'
with
implementation 'androidx.legacy:legacy-support-v4:1.0.0'
in your build.gradle

Passing Boolean value from fragments to activity

I am new to android development and I am trying to pass a Boolean value from dialog fragment to the activity.
the boolean value is supposed to be decided by the user(depends on which button user clicked). However, the boolean immediately turned to false without clicking any button.
I have tried various method recommended I found on internet but none of them works for me(I guess I have some part screwed up...), these method include:
-broadcasting
-implementing interface
-intent.putExtra
and below is the code that I have came up with, could anyone help me take a look? Any help is appreciated.
Stage:
package com.example.fuj.valorsafeworldbytrade;
import android.support.v4.app.FragmentManager;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.util.Log;
import android.view.View;
import android.widget.TextView;
import static com.example.fuj.valorsafeworldbytrade.LosingDialogFragment.LOSING_FRAGMENT;
public class Stage extends AppCompatActivity {
String stage;
FragmentManager fragmentManager = getSupportFragmentManager();
LosingDialogFragment losingDialogFragment = new LosingDialogFragment();
BasicInfo basicInfo = new BasicInfo();
public void setText(){
TextView cpuReputation = (TextView) findViewById(R.id.cpu_reputation);
TextView cpuGold = (TextView) findViewById(R.id.cpu_gold);
TextView pGoldText = (TextView) findViewById(R.id.player_gold);
TextView pRepText = (TextView) findViewById(R.id.player_reputation);
cpuReputation.setText(String.valueOf(basicInfo.cRep));
cpuGold.setText(String.valueOf(basicInfo.cGold));
pGoldText.setText(String.valueOf(basicInfo.pGold));
pRepText.setText(String.valueOf(basicInfo.pRep));
}
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_stage);
setText();
}
protected void onStart() {
super.onStart();
stage = getIntent().getStringExtra(StageChoosingMenu.STAGE);
}
public void playerChoice(View view) {
boolean deceiveEnabled;
switch (view.getId()) {
case R.id.cooperate_button:
deceiveEnabled = false;
break;
case R.id.deceive_button:
deceiveEnabled = true;
break;
default:
throw new RuntimeException("Unknown Button ID");
}
switch (stage){
case "xumo":
xuMo(deceiveEnabled);
break;
}
}
public void xuMo(boolean playerDeceiveEnabled){
boolean cpuDeceiveEnabled;
cpuDeceiveEnabled = (Math.random() - basicInfo.faith > 0);
if (cpuDeceiveEnabled){
if (playerDeceiveEnabled){
basicInfo.playerDvsCpuD();
// faith changes to be amend w/ proper value, need record on the change of status
}
if (!playerDeceiveEnabled){
basicInfo.playerCvsCpuD();
}
}
if (!cpuDeceiveEnabled){
if (playerDeceiveEnabled){
basicInfo.playerDvsCpuC();
}
if (!playerDeceiveEnabled){
basicInfo.playerCvsCpuC();
}
}
if(basicInfo.pGold <= 0 || basicInfo.cGold <= 0 || basicInfo.pRep <= 0 || basicInfo.cRep <= 0){
//to be changed
setText();
losingDialogFragment.show(fragmentManager,LOSING_FRAGMENT);
//trying to show a alert dialog fragment
Log.d("True", String.valueOf(losingDialogFragment.tryAgainEnabled));
if(losingDialogFragment.tryAgainEnabled){//tryAgainEnabled is always false
//This is the part that I wanted to retrieve data from the user(if they want to try again or not)
basicInfo.reset();
losingDialogFragment.dismiss();
}else{
losingDialogFragment.dismiss();
}
}
setText();
// to be changed
}
}
LosingDialogFragment:
package com.example.fuj.valorsafeworldbytrade;
import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.support.v4.app.DialogFragment;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.Button;
/**
* Created by fuj on 20/1/2017.
*/
public class LosingDialogFragment extends DialogFragment{
public static final String LOSING_FRAGMENT = "LOSING";
public boolean tryAgainEnabled;
Intent intent = new Intent();
#Override
public View onCreateView(final LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState){
View rootView = inflater.inflate(R.layout.fragment_lose, container, false);;
//the following code is used to set the boolean value after the user click the button
final Button tryAgainButton = (Button)rootView.findViewById(R.id.try_again_button);
tryAgainButton.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
tryAgainEnabled = true;
}
});
Button giveUpButton =(Button)rootView.findViewById(R.id.give_up_button);
giveUpButton.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
tryAgainEnabled = false;
}
});
getDialog().setTitle(LOSING_FRAGMENT);
return rootView;
}
}
I am also sorry that I am not the best with English, if any things is not clear or not polite because of my poor English, please kindly let me know. I apologize in advance for any mistakes I have made.

It's because you check the value of tryAgainEnabled exactly right after showing the Dialog. Dialog starts Asynchronously, It means that it starts in diffrent Thread and your current thread doesn't wait for dismissing Dialog, So this line of your code if(losingDialogFragment.tryAgainEnabled){ runs exactly after you show dialog, befor you set value to tryAgainEnabled. Because the default value of boolean is always false, you will get false everytime.
I suggest that use listener for this:
Dialog:
public class LosingDialogFragment extends DialogFragment {
public static final String LOSING_FRAGMENT = "LOSING";
public boolean tryAgainEnabled;
Intent intent = new Intent();
private View.OnClickListener onTryAgainButtonClickLisnter;
private View.OnClickListener onGiveUpButtonClickLisnter;
#Override
public View onCreateView(final LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState){
View rootView = inflater.inflate(R.layout.fragment_lose, container, false);;
final Button tryAgainButton = (Button)rootView.findViewById(R.id.try_again_button);
tryAgainButton.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
if(onTryAgainButtonClickLisnter!=null)
onTryAgainButtonClickLisnter.onClick(v);
}
});
Button giveUpButton =(Button)rootView.findViewById(R.id.give_up_button);
giveUpButton.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
if(onGiveUpButtonClickLisnter!=null)
onGiveUpButtonClickLisnter.onClick(v);
}
});
getDialog().setTitle(LOSING_FRAGMENT);
return rootView;
}
public void setOnTryAgainButtonClickLisnter(View.OnClickListener onTryAgainButtonClickLisnter) {
this.onTryAgainButtonClickLisnter = onTryAgainButtonClickLisnter;
}
public void setOnGiveUpButtonClickLisnter(View.OnClickListener onGiveUpButtonClickLisnter) {
this.onGiveUpButtonClickLisnter = onGiveUpButtonClickLisnter;
}
}
In your activity call dialog like this:
LosingDialogFragment losingDialogFragment = new LosingDialogFragment();
losingDialogFragment.setOnTryAgainButtonClickLisnter(new View.OnClickListener() {
#Override
public void onClick(View v) {
tryAgain();
losingDialogFragment.dismiss();
}
});
losingDialogFragment.setOnGiveUpButtonClickLisnter(new View.OnClickListener() {
#Override
public void onClick(View v) {
giveUp();
losingDialogFragment.dismiss();
}
});
losingDialogFragment.show(fragmentManager, "");

Declare public boolean tryAgainEnabled; in your Stage Activity and youd can update that variable using ((Stage)context).tryAgainEnabled.
package com.example.fuj.valorsafeworldbytrade;
import android.support.v4.app.FragmentManager;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.util.Log;
import android.view.View;
import android.widget.TextView;
import static com.example.fuj.valorsafeworldbytrade.LosingDialogFragment.LOSING_FRAGMENT;
public class Stage extends AppCompatActivity {
String stage;
FragmentManager fragmentManager = getSupportFragmentManager();
LosingDialogFragment losingDialogFragment = new LosingDialogFragment();
BasicInfo basicInfo = new BasicInfo();
public boolean tryAgainEnabled;
public void setText(){
TextView cpuReputation = (TextView) findViewById(R.id.cpu_reputation);
TextView cpuGold = (TextView) findViewById(R.id.cpu_gold);
TextView pGoldText = (TextView) findViewById(R.id.player_gold);
TextView pRepText = (TextView) findViewById(R.id.player_reputation);
cpuReputation.setText(String.valueOf(basicInfo.cRep));
cpuGold.setText(String.valueOf(basicInfo.cGold));
pGoldText.setText(String.valueOf(basicInfo.pGold));
pRepText.setText(String.valueOf(basicInfo.pRep));
}
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_stage);
setText();
}
protected void onStart() {
super.onStart();
stage = getIntent().getStringExtra(StageChoosingMenu.STAGE);
}
public void playerChoice(View view) {
boolean deceiveEnabled;
switch (view.getId()) {
case R.id.cooperate_button:
deceiveEnabled = false;
break;
case R.id.deceive_button:
deceiveEnabled = true;
break;
default:
throw new RuntimeException("Unknown Button ID");
}
switch (stage){
case "xumo":
xuMo(deceiveEnabled);
break;
}
}
public void xuMo(boolean playerDeceiveEnabled){
boolean cpuDeceiveEnabled;
cpuDeceiveEnabled = (Math.random() - basicInfo.faith > 0);
if (cpuDeceiveEnabled){
if (playerDeceiveEnabled){
basicInfo.playerDvsCpuD();
// faith changes to be amend w/ proper value, need record on the change of status
}
if (!playerDeceiveEnabled){
basicInfo.playerCvsCpuD();
}
}
if (!cpuDeceiveEnabled){
if (playerDeceiveEnabled){
basicInfo.playerDvsCpuC();
}
if (!playerDeceiveEnabled){
basicInfo.playerCvsCpuC();
}
}
if(basicInfo.pGold <= 0 || basicInfo.cGold <= 0 || basicInfo.pRep <= 0 || basicInfo.cRep <= 0){
//to be changed
setText();
losingDialogFragment.show(fragmentManager,LOSING_FRAGMENT);
Log.d("True", String.valueOf(losingDialogFragment.tryAgainEnabled));
if(losingDialogFragment.tryAgainEnabled){//tryAgainEnabled is always false
basicInfo.reset();
losingDialogFragment.dismiss();
}else{
losingDialogFragment.dismiss();
}
}
setText();
// to be changed
}
}
And in Fragment
package com.example.fuj.valorsafeworldbytrade;
import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.support.v4.app.DialogFragment;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.Button;
/**
* Created by fuj on 20/1/2017.
*/
public class LosingDialogFragment extends DialogFragment{
public static final String LOSING_FRAGMENT = "LOSING";
Context context;
Intent intent = new Intent();
#Override
public View onCreateView(final LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState){
View rootView = inflater.inflate(R.layout.fragment_lose, container, false);;
final Button tryAgainButton = (Button)rootView.findViewById(R.id.try_again_button);
tryAgainButton.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
((Stage)context).tryAgainEnabled = true;
}
});
Button giveUpButton =(Button)rootView.findViewById(R.id.give_up_button);
giveUpButton.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
((Stage)context).tryAgainEnabled = false;
}
});
getDialog().setTitle(LOSING_FRAGMENT);
return rootView;
}
}

Passing a data from Dialog to Fragment in android

I'm currently working in my own project of dental application, i would like to ask if how to pass a certain data from a custom dialog and show or add it to the target fragment?
Appreciate for any help.
This is the Custom Dialog Screenshot:
CustomDialog.java
package com.bloxofcode.multipletabs;
import android.app.Activity;
import android.app.Dialog;
import android.os.Build;
import android.os.Bundle;
import android.support.annotation.RequiresApi;
import android.view.View;
import android.view.Window;
import android.widget.Button;
import android.widget.CompoundButton;
import android.widget.EditText;
import android.widget.Toast;
import android.widget.ToggleButton;
import com.bloxofcode.multipletabs.Tab1;
public class CustomDialog extends Dialog implements
View.OnClickListener {
public Activity c;
public CustomDialog d;
public Button yes, no;
ToggleButton btnGenderMale,btnGenderFemale;
Button btnCancel, btnAccept;
EditText eText;
public CustomDialog(Activity a) {
super(a);
// TODO Auto-generated constructor stub
this.c = a;
}
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
requestWindowFeature(Window.FEATURE_NO_TITLE);
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
getWindow().setBackgroundDrawableResource(android.R.drawable.dialog_holo_light_frame);
}
else{
getWindow().setBackgroundDrawableResource(android.R.drawable.alert_light_frame);
}
setContentView(R.layout.activity_dialog);
btnGenderFemale = (ToggleButton) findViewById(R.id.toggleButtonFemale);
btnGenderMale = (ToggleButton) findViewById(R.id.toggleButtonMale);
btnCancel = (Button) findViewById(R.id.btnCancel);
btnAccept = (Button) findViewById(R.id.btnAccept);
eText = (EditText) findViewById(R.id.editText);
btnGenderMale.setChecked(true);
btnGenderMale.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
#Override
public void onCheckedChanged(CompoundButton buttonMale, boolean b) {
// Toast.makeText(getApplicationContext(),
// String.valueOf(buttonMale.isChecked()), Toast.LENGTH_SHORT).show();
if(buttonMale.isChecked()){
btnGenderMale.setEnabled(false);
btnGenderFemale.setEnabled(true);
btnGenderFemale.setChecked(false);
}else{
}
}
});
btnGenderFemale.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
#Override
public void onCheckedChanged(CompoundButton buttonFemale, boolean b) {
// Toast.makeText(getApplicationContext(),
// String.valueOf(buttonFemale.isChecked()), Toast.LENGTH_SHORT).show();
if(buttonFemale.isChecked()){
btnGenderMale.setEnabled(true);
btnGenderFemale.setEnabled(false);
btnGenderMale.setChecked(false);
}else{
}
}
});
btnCancel.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
dismiss();
}
});
btnAccept.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
Toast.makeText(getContext(),"Sample",Toast.LENGTH_LONG).show();
}
});
}
#Override
public void onClick(View v) {
dismiss();
}
}
How to achieve this Expected Result:
Tab1.java
package com.bloxofcode.multipletabs;
import android.content.ContentValues;
import android.database.Cursor;
import android.net.Uri;
import android.os.Build;
import android.os.Bundle;
import android.support.annotation.RequiresApi;
import android.support.v4.app.Fragment;
import android.support.v4.widget.CursorAdapter;
import android.support.v4.widget.SimpleCursorAdapter;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ImageButton;
import android.widget.ListView;
import com.bloxofcode.multipletabs.database.DBOpenHelper;
import com.bloxofcode.multipletabs.database.NotesProvider;
/**
* A simple {#link Fragment} subclass.
*/
public class Tab1 extends Fragment {
private ImageButton imgButton;
private CustomDialog customDialog;
View v;
#RequiresApi(api = Build.VERSION_CODES.JELLY_BEAN)
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
v =inflater.inflate(R.layout.tab_1,container,false);
imgButton = (ImageButton) v.findViewById(R.id.imageButton);
//Creating ImageButton
imgButton.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
// Toast.makeText(getActivity(),"Hello Image Button!",Toast.LENGTH_LONG).show();
customDialog = new CustomDialog(getActivity());
customDialog.show();
}
});
press();
return v;
}
#RequiresApi(api = Build.VERSION_CODES.JELLY_BEAN)
public void press() {
insertNote("Juan Dela Cruz");
Cursor cursor = getActivity().getContentResolver().query(NotesProvider.CONTENT_URI,
DBOpenHelper.ALL_COLUMNS, null, null, null, null);
String[] from = {DBOpenHelper.NOTE_TEXT};
int[] to = {android.R.id.text1};
CursorAdapter cursorAdapter = new SimpleCursorAdapter(getActivity(),
android.R.layout.simple_list_item_1,cursor,from,to,0);
ListView list = (ListView) v.findViewById(android.R.id.list);
list.setAdapter(cursorAdapter);
}
private void insertNote(String noteText) {
ContentValues values = new ContentValues();
values.put(DBOpenHelper.NOTE_TEXT,noteText);
Uri noteUri =getActivity().getContentResolver().insert(NotesProvider.CONTENT_URI,values);
Log.d("MainActivity","Inserted note " + noteUri.getLastPathSegment());
}
}
ViewPagerAdapter.java
package com.bloxofcode.multipletabs;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentManager;
import android.support.v4.app.FragmentStatePagerAdapter;
public class ViewPagerAdapter extends FragmentStatePagerAdapter{
CharSequence Titles[]; // This will Store the Titles of the Tabs which are Going to be passed when ViewPagerAdapter is created
int NumbOfTabs; // Store the number of tabs, this will also be passed when the ViewPagerAdapter is created
// Build a Constructor and assign the passed Values to appropriate values in the class
public ViewPagerAdapter(FragmentManager fm,CharSequence mTitles[], int mNumbOfTabsumb) {
super(fm);
this.Titles = mTitles;
this.NumbOfTabs = mNumbOfTabsumb;
}
//This method return the fragment for the every position in the View Pager
#Override
public Fragment getItem(int position) {
if(position == 0) // if the position is 0 we are returning the First tab
{
Tab1 tab1 = new Tab1();
return tab1;
}
else if(position == 1)
{
Tab2 tab2 = new Tab2();
return tab2;
}
else // As we are having 3 tabs if the position is now 0 it must be 1 so we are returning second tab
{
Tab3 tab3 = new Tab3();
return tab3;
}
}
// This method return the titles for the Tabs in the Tab Strip
#Override
public CharSequence getPageTitle(int position) {
return Titles[position];
}
// This method return the Number of tabs for the tabs Strip
#Override
public int getCount() {
return NumbOfTabs;
}
}
TabsActivity.java
package com.bloxofcode.multipletabs;
import android.os.Build;
import android.support.v4.view.ViewPager;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.support.v7.widget.Toolbar;
import android.view.Menu;
import android.view.MenuItem;
import android.widget.Toast;
public class TabsActivity extends AppCompatActivity {
// Declaring Your View and Variables
Toolbar toolbar;
ViewPager pager;
ViewPagerAdapter adapter;
SlidingTabLayout tabs;
CharSequence Titles[]={"Patient","Appointment","Backup"};
int Numboftabs =3;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_tabs);
// Creating The Toolbar and setting it as the Toolbar for the activity
toolbar = (Toolbar) findViewById(R.id.tool_bar);
setSupportActionBar(toolbar);
// Creating The ViewPagerAdapter and Passing Fragment Manager, Titles fot the Tabs and Number Of Tabs.
adapter = new ViewPagerAdapter(getSupportFragmentManager(),Titles,Numboftabs);
// Assigning ViewPager View and setting the adapter
pager = (ViewPager) findViewById(R.id.pager);
pager.setAdapter(adapter);
// Assiging the Sliding Tab Layout View
tabs = (SlidingTabLayout) findViewById(R.id.tabs);
tabs.setDistributeEvenly(true); // To make the Tabs Fixed set this true, This makes the tabs Space Evenly in Available width
// Setting Custom Color for the Scroll bar indicator of the Tab View
tabs.setCustomTabColorizer(new SlidingTabLayout.TabColorizer() {
#Override
public int getIndicatorColor(int position) {
//return ContextCompat.getColor(TabsActivity.this,R.color.tabsScrollColor);
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
return getResources().getColor(R.color.tabsScrollColor,TabsActivity.this.getTheme());
}else {
return getResources().getColor(R.color.tabsScrollColor);
}
}
});
// Setting the ViewPager For the SlidingTabsLayout
tabs.setViewPager(pager);
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.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();
//noinspection SimplifiableIfStatement
if (id == R.id.action_settings) {
return true;
}
return super.onOptionsItemSelected(item);
}
}

If you'd like to keep things loosely coupled and structured, A fine rather alternative is to choose the EventBus . To see the usage see this Answer.

You can accomplish it using Interface.
YourInterface.java
public interface YourInterface{
void yourMethod(int data);
}
Use that Interface in your Dialog class:
public class CustomDialog extends Dialog implements
View.OnClickListener {
private YourInterface delegate;
....
public CustomDialog(Activity a) {
super(a);
// TODO Auto-generated constructor stub
this.c = a;
delegate = (YourInterface) a;
}
}
In your Activity that holds fragment implement interface:
public class YourActivity extends AppCompatActivity implements YourInterface {
....
#Override
public void yourMethod(int data) {
fragment.receiverMethod(data);
}
}
Tab1.java
public class Tab1 extends Fragment {
public void receiverMethod(int data) {
// do what you want with received data
}
}
Now to use that simply call delegate.yourMethod(data) to pass it to fragment

You can use Broadcast Receiver in your onDismiss like below in your Dialog
#Override
public void onDismiss(DialogInterface dialog) {
super.onDismiss(dialog);
if (onDismissListener != null) {
Intent intent = new Intent("DialogDismiss");
LocalBroadcastManager.getInstance(getActivity()).sendBroadcast(intent);
onDismissListener.onDismiss(dialog);
}
}
and in your Fragment you can receive the broadcast
// In your Fragment do below
BroadcastReceiver mReceiver = new BroadcastReceiver() {
#Override
public void onReceive(Context context, Intent intent) {
//Work Here
}
};
//In OnCreate
LocalBroadcastManager.getInstance(getActivity()).registerReceiver(mReceiver,
new IntentFilter("DialogDismiss"));
//onDestroy
LocalBroadcastManager.getInstance(getActivity()).unregisterReceiver(mReceiver);

If you get the view from the customDialog you can just access the fields normally with view.findViewById() from in your fragment class.

Put your data into budle as key-value pair and set bundle as an argument to fragment.
fragment.setArgument(bundle)
To get bundle in fragmen, call
Bundle bundle = getArgument() and get values from the bundle based on key.

You could return the String which was entered into the EditText by creating a setter and getter method within your Dialog class to return a String variable (e.g. editTextString) which you would assign a value to whenever the accept button is clicked.
Add your getter and setter methods to the Dialog class
private void setEditTextString() {
editTextString = eText.getText().toString()
}
public String getEditTextString() {
return editTextString;
}
Within your click listener for the accept button add the following line of code:
setEditTextString(eText.getText().toString());
Then all you need to do to return the value entered in the editText field in the Fragment class would be to call the public method within your Dialog class to return the string.
dialogClass.getEditTextValue()

Show Dialog depending on ViewPager state

I have a ViewPager, and lets imagine, that i am on page 0.
I have a button on this page, and on this button click, i want to show a dialog, and change page to the page 1.
When my page changes to page 1, i want the dialog to dissapear.
When i did it, i didn't see the dialog, it was appearing and dissapearing when page was changed, but i am sure, that i have 1000ms delay between this actions.
Please help, how can i show the dialog?
package com.example.ViewPagerDialog;
import android.app.Activity;
import android.app.ProgressDialog;
import android.content.Context;
import android.os.Bundle;
import android.support.v4.view.PagerAdapter;
import android.support.v4.view.ViewPager;
import android.view.View;
import android.view.ViewGroup;
import android.widget.Button;
import android.widget.TextView;
public class MyActivity extends Activity {
private int currentPage;
/**
* Called when the activity is first created.
*/
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
final MyViewPager viewPager = (MyViewPager) findViewById(R.id.view_pager);
final Button leftSwitcher = (Button) findViewById(R.id.left_switcher);
final Button rightSwitcher = (Button) findViewById(R.id.right_switcher);
final ProgressDialog progressDialog = new ProgressDialog(this);
leftSwitcher.setVisibility(View.GONE);
progressDialog.setTitle("Wait...");
viewPager.setAdapter(new MyPagerAdapter(this));
viewPager.setOnPageChangeListener(new ViewPager.OnPageChangeListener() {
public void onPageScrolled(int i, float v, int i2) {
}
public void onPageSelected(int i) {
progressDialog.dismiss();
currentPage = i;
if (i == 0) {
leftSwitcher.setVisibility(View.GONE);
} else if (i == 1) {
leftSwitcher.setVisibility(View.VISIBLE);
rightSwitcher.setVisibility(View.VISIBLE);
} else if (i == 2) {
rightSwitcher.setVisibility(View.GONE);
}
}
public void onPageScrollStateChanged(int i) {
}
});
leftSwitcher.setOnClickListener(new View.OnClickListener() {
public void onClick(View view) {
progressDialog.show();
sleepThread();
viewPager.setCurrentItem(currentPage - 1);
}
});
rightSwitcher.setOnClickListener(new View.OnClickListener() {
public void onClick(View view) {
progressDialog.show();
sleepThread();
viewPager.setCurrentItem(currentPage + 1);
}
});
}
private void sleepThread() {
try {
Thread.sleep(1000);
} catch (InterruptedException e) {
e.printStackTrace();
}
}
private class MyPagerAdapter extends PagerAdapter {
View[] views = new View[3];
public MyPagerAdapter(Context context) {
TextView view1 = new TextView(context);
TextView view2 = new TextView(context);
TextView view3 = new TextView(context);
view1.setText("View 1");
view2.setText("View 2");
view3.setText("View 3");
views[0] = view1;
views[1] = view2;
views[2] = view3;
}
#Override
public int getCount() {
return views.length;
}
#Override
public boolean isViewFromObject(View view, Object o) {
return (view.equals(o));
}
#Override
public Object instantiateItem(ViewGroup collection, int position) {
collection.addView(views[position]);
return views[position];
}
#Override
public void destroyItem(android.view.ViewGroup container, int position, java.lang.Object object) {
container.removeView(views[position]);
}
}
}

First of all, never block the UI thread with Thread.sleep() like you do. By using Thread.sleep() you'll basically set the show command for the dialog(which will happen after you return from the onCLick() method), sleep one second(and your app will freeze) and then set the page on the ViewPager which will trigger the listener, dismissing the dialog. Instead you could use a Handler to
private Handler mHandler = new Handler();
// in the onClick method
progressDialog.show();
mHandler.postDelayed(new Runnable() {
#Override
public void run() {
viewPager.setCurrentItem(currentPage - 1);
}
}, 1000);