Hello I want to have an Add function that allows me to input items to my GridView
For Background: I have a standard GridView and an XML activity (which contains 2 TextView) that I want to convert to my GridView. I also have a custom ArrayAdapter class and custom Word object (takes 2 Strings variables) that helps me do this.
My problem: I want to have an Add button that takes me to another XML-Layout/class and IDEALLY it input a single item and so when the user goes back to MainActivity the GridView would be updated along with the previous information that I currently hard-coded atm. This previous sentence doesn't work currently
Custom ArrayAdapter and 'WordFolder' is my custom String object that has 2 getters
//constructor - it takes the context and the list of words
WordAdapter(Context context, ArrayList<WordFolder> word){
super(context, 0, word);
}
#Override
public View getView(int position, View convertView, ViewGroup parent){
View listItemView = convertView;
if(listItemView == null){
listItemView = LayoutInflater.from(getContext()).inflate(R.layout.folder_view, parent, false);
}
//Getting the current word
WordFolder currentWord = getItem(position);
//making the 2 text view to match our word_folder.xml
TextView title = (TextView) listItemView.findViewById(R.id.title);
title.setText(currentWord.getTitle());
TextView desc = (TextView) listItemView.findViewById(R.id.desc);
desc.setText(currentWord.getTitleDesc());
return listItemView;
}
}
Here is my NewFolder code. Which sets contentview to a different XML. it's pretty empty since I'm lost on what to do
public class NewFolder extends AppCompatActivity {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.new_folder_view);
Button add = (Button) findViewById(R.id.add);
//If the user clicks the add button - it will save the contents to the Word Class
add.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
//make TextView variables and cast the contents to a string and save it to a String variable
TextView name = (TextView) findViewById(R.id.new_folder);
String title = (String) name.getText();
TextView descText = (TextView) findViewById(R.id.desc);
String desc = (String) descText.getText();
//Save it to the Word class
ArrayList<WordFolder> word = new ArrayList<>();
word.add(new WordFolder(title, desc));
//goes back to the MainActivity
Intent intent = new Intent(NewFolder.this, MainActivity.class);
startActivity(intent);
}
});
}
In my WordFolder class I made some TextView variables and save the strings to my ArrayList<> object but so far it's been useless since it doesn't interact with the previous ArrayList<> in ActivityMain which makes sense because its an entirely new object. I thought about making the ArrayList a global variable which atm it doesn't make sense to me and I'm currently lost.
Sample code would be appreciative but looking for a sense of direction on what to do next. I can provide other code if necessary. Thank you
To pass data between Activities to need to do a few things:
First, when the user presses your "Add" button, you want to start the second activity in a way that allows it to return a result. this means, that instead of using startActivity you need to use startActivityForResult.
This method takes an intent and an int.
Use the same intent you used in startActivity.
The int should be a code that helps you identify where a result came from, when a result comes. For this, define some constant in your ActivityMain class:
private static final int ADD_RESULT_CODE = 123;
Now, your button's click listener should looks something like this:
addButton.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View arg0) {
Intent intent=new Intent(MainActivity.this, NewFolder.class);
startActivityForResult(intent, ADD_RESULT_CODE);
}
});
Now for returning the result.
First, you shouldn't go back to your main activity by starting another intent.
Instead, you should use finish() (which is a method defined in AppCompatActivity, you can use to finish your activity), this will return the user to the last place he was before this activity - ActivityMain.
And to return some data, too, you can use this code:
Intent intent=new Intent();
intent.putExtra("title",title);
intent.putExtra("desc",desc);
setResult(Activity.RESULT_OK, intent);
where title and desc are the variables you want to pass.
in your case it should look something like this:
public class NewFolder extends AppCompatActivity {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.new_folder_view);
Button add = (Button) findViewById(R.id.add);
//If the user clicks the add button - it will save the contents to the Word Class
add.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
//make TextView variables and cast the contents to a string and save it to a String variable
TextView name = (TextView) findViewById(R.id.new_folder);
String title = (String) name.getText();
TextView descText = (TextView) findViewById(R.id.desc);
String desc = (String) descText.getText();
//Save it to the Word class
ArrayList<WordFolder> word = new ArrayList<>();
word.add(new WordFolder(title, desc));
Intent intent=new Intent();
intent.putExtra("title",title);
intent.putExtra("desc",desc);
setResult(Activity.RESULT_OK, intent);
//goes back to the MainActivity
finish();
}
});
}
You should probably also take care of the case where the user changed his mind and wants to cancel adding an item. in this case you should:
setResult(Activity.RESULT_CANCELLED);
finish();
In your ActivityMain you will have the result code, and if its Activity.RESULT_OK you'll know you should add a new item, but if its Activity.RESULT_CANCELLED you'll know that the user changed their mind
Now all that's left is receiving the data in ActivityMain, and doing whatever you want to do with it (like adding it to the grid view).
To do this you need to override a method called onActivityResult inside ActivityMain:
// Call Back method to get the Message form other Activity
#Override
protected void onActivityResult(int requestCode, int resultCode, Intent data)
{
super.onActivityResult(requestCode, resultCode, data);
// check the result code to know where the result came from
//and check that the result code is OK
if(resultCode == Activity.RESULT_OK && requestCode == ADD_RESULT_CODE )
{
String title = data.getStringExtra("title");
String desc = data.getStringExtra("desc");
//... now, do whatever you want with these variables in ActivityMain.
}
}
Related
I am making this eCommerce app,
And, i wanted this behaviour in it.
Which is-
At the opening, there will be pitures in the MainActivity.
And a search box.
When you click the picture it will take you to MainActivity2 and there is an ImageView in this activity which will change to become the same picture as the picture I clicked in MainActivity.
And
When you search something in the search box in the MainActivity,
if your searched text matches with the string object of the arraylist in the MainActivity2,
it will change the ImageView of MainActivity2 with the corresponding image of the string object of the arraylist.
I hope, i made minimum grammatical mistakes to make you understand my problem. 😅
Anyways,
For the first case-
I tried to make this work by using On touchListeners, Intenets and booleans.
As you can see in the code below,
touching my ImageView(iBtn1) will trigger Intent intent1, make boolean i1
=true and then send the boolean to next activity in the name "t1".
And ,
For the second case-
I tried using OnClickListeners, Intenets, arraylists and booleans.
First,
I changed the Edittext(input) into string.
For clicking the search Button(igo),
it will trigger Intent intent,
Then it will send the string Data of the input as "eText" and send boolean data x=true, as "x".
public class MainActivity extends AppCompatActivity {
EditText input;
ImageView iBtn1;
TextView tName, tPrice, tDescription;
ImageView iImage;
Button igo;
String eText;
boolean i1,x;
#SuppressLint("ClickableViewAccessibility")
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
i1=false;
x=false;
igo=findViewById(R.id.go);
iBtn1=findViewById(R.id.Btn1);
input=findViewById(R.id.edittext);
eText=input.getText().toString();
igo.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
x=true;
Intent intent=new Intent(MainActivity.this,MainActivity2.class);
intent.putExtra("eText",eText);
intent.putExtra("x",x);
startActivity(intent);
}
});
iBtn1.setOnTouchListener((v, event) -> {
if (event.getAction() == MotionEvent.ACTION_DOWN) {
v.setPressed(true);
iBtn1.setBackground(ContextCompat.getDrawable(getApplicationContext(),R.drawable.ectangle_31_1));
return true;
} else if (event.getAction() == MotionEvent.ACTION_UP) {
iBtn1.setBackground(ContextCompat.getDrawable(getApplicationContext(),R.drawable.ectangle_31));
overridePendingTransition(android.R.anim.fade_in,android.R.anim.fade_out);
i1=true;
Intent intent1=new Intent(MainActivity.this,MainActivity2.class);
intent1.putExtra("t1",i1);
startActivity(intent1);
v.performClick();
v.setPressed(false);
return false;
} else {
return false;
}
});
In the next activity-
For my first case-
My target ImageView is iImage.
But at first, what i did was, get the (boolean) data from the previous Intent intent1 to the current Intent I1.
Then i have declared a variable(x1) containing the value of that boolean data.
Then i have implemented an if condition,
If x1 is true, it will change the image resource of the ImageView iImage.
Else, nothing happens.
And, for my 2nd case-
I have this arraylist made up. It contained string data as xName and imageId as xImageId.
Anyways,
First i got the string data from "eText" and boolean data using getIntent.
Then implementating if condition, i tried to compare the string data with the string of arraylist.
If it is equal.
Then i told the programm to change the ImageView just like the case-1
And, i got the data
public class MainActivity2 extends AppCompatActivity {
String eName;
boolean bx;
ImageView iImage;
TextView iname;
Intent I1,intent;
ArrayList<x> xList;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main2);
iImage=findViewById(R.id.xblock);
iname=findViewById(R.id.xname);
xList=new ArrayList<>();
xList.add(new x("engineer",R.drawable.ectangle_32));
xList.add(new x("Artists", R.drawable.ectangle_31));
xList.add(new x("Singers",R.drawable.ectangle_33));
xList.add(new x("Lawyer",R.drawable.ectangle_37));
xList.add(new x("Writters",R.drawable.ectangle_38));
xList.add(new x("developer",R.drawable.ectangle_36));
I1=getIntent();
intent=getIntent();
eName = intent.getStringExtra("eText");
bx = intent.getBooleanExtra("x",false);
if (bx=true) {
String yname = eName.toLowerCase();
for (x yList : xList) {
String xname = yList.getxName().toLowerCase();
if (xname.equals(yname)) {
iname.setText(yList.getxName());
iImage.setImageResource(yList.getxImageId());
}
}
}
boolean x1= intent.getBooleanExtra("t1",false);
if (x1=true){
iImage.setImageResource(R.drawable.ectangle_31);
}
else{x1 = false;}
}
}
But, my app crashes,
It can't get to MainActivity2,
And when check the problem in MainActivity2, it say that my variable is not assigned.
What is the problem here?
Thanks a lot for reading, all this gibberish writing.
Please let me know if i hade made any mistakes.
I think the problem is in getting boolean bx
It shouldbe like this
boolean bx = getIntent().getBooleanExtra(x);
try it if it works
I will simplify my code to address the problem specifically:
I have an activity A with some TextViews, which text is set to certain key values stored in SharedPreferences, in the activity's OnCreate method. Each textview has a button besides it. When a button is clicked it opens a new activity B which displays an adapter with different text strings. When the user clicks one, the new string is stored in preferences and the user is directed back to Activity A through an intent, and so OnCreate method is called and the textview is updated with the selected text. This works perfectly.
However, my problem is:
When a user does this and updates the textview, if they press Back button once, it will take them to Activity B, but if pressed twice that will take them to Activity A before updating the TextView and thus displaying the old textview, despite having stored in SharedPreferences the updated value. How can this be fixed?
A more simplified version of my problem is, I have a TextView in my layout, and a button which if pressed, deletes it and refreshes the Activity. User presses the delete button, text view disappears, but then presses back button and TextView is restored. That's what I dont want.
I have researched all the back button methodologies and savedInstanceState documentation but I still havent found something that works. I also tried adding an UpNavigation button in my action bar but it does the same effect than the back button.
ACTIVITY A (All these bits of code are called in OnCreate)
SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(this);
String sound1name = prefs.getString("sound1", "1");
TextView sound1TV = findViewById(R.id.sound1);
sound1TV.setText(sound1Name);
ImageView sound1btn = findViewById(R.id.sound1_btn);
sound1btn.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
Intent intent1 = new Intent(getApplicationContext(), SoundSelector.class);
startActivity(intent1);
}
});
ACTIVITY B (calls adapter)
AudioFileAdapter aFilesAdapter = new AudioFileAdapter(SoundSelector.this, audioFileList, soundID);
ListView listView = findViewById(R.id.sounds_list);
listView.setAdapter(aFilesAdapter);
ADAPTER IN ACTIVITY B (OnClickListener when text is selected)
SharedPreferences settings = PreferenceManager.getDefaultSharedPreferences(contextL);
SharedPreferences.Editor editor = settings.edit();
editor.putString("sound1", sound1string);
editor.apply();
Intent intent1 = new Intent(getContext(), SoundEditor.class);
con.startActivity(intent1);
Im not sure if it is the Activity Lifecycle I have to modify, or intents, or something else but if someone could point me in the right direction I would really appreciate it, if you need any more information or code I'll post as soon as possible.
For storing and retrieving shared preferences try the following:
Storing
SharedPreferences preferences = getSharedPreferences("com.appname", Context.MODE_WORLD_WRITEABLE);
SharedPreferences.Editor editor = preferences.edit();
editor.putString("sound1", "YOUR STRING HERE");
editor.apply();
Retrieving
SharedPreferences prfs = getSharedPreferences("com.appname", Context.MODE_PRIVATE);
String soundString = prfs.getString("sound1", "");
Your intent looks fine, are you sure you're passing Activity A's name?
For your second scenario, you could store if the text view was deleted in the shared preference, so when the back button is pressed, it won't display it again in the previous activity.
Something like this
if (isDeleted.equals("Yes")) {
textView.setVisibility(View.INVISIBLE);
}
The way Activity B is navigating back to Activity A by restarting the activity in the front and not by onBackPressed() navigation. Besides if the navigation is an important component to update the string value then the recommended method would be to use startActivityForResult() and update the preference and the TextView upon onActivityResult() of Activity A
class ActivityA extends AppCompatActivity {
private static final int activityRequest = 0x22;
public static final String keyPref = "keyToSharedPrefData";
private TextView mTextView;
private boolean isHidden = false;
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.a_activity);
mTextView = findViewById(R.id.someTextView);
final String textForTextView = SharedPrefUtils.getString(keyPref);
mTextView.setText(textForTextView);
final Button button = findViewById(R.id.someButton);
if (button != null) {
button.setOnClickListener((view) -> {
final Intent intent = new Intent(ActivityA.this, AcitivtyB.class);
startActivityForResult(intent, activityRequest);
});
}
final deleteButton = findViewById(R.id.delete_button);
if (deleteButton != null) {
deleteButton.setOnClickListener((view) -> {
mTextView.setText("");
isHidden = true;
});
}
}
#Override
public void onActivityResult(int requestCode, int resultCode, Intent data){
if (requestCode == activityRequest && resultCode == ActivityB.resultSuccess && data != null) {
if (data.containsKey(ActivityB.resultKey)) {
SharedPrefUtils.saveString(keyPref,
data.getString(ActivityB.resultKey, SharedPrefUtils.getString(keyPref));
if (mTextView != null) {
mTextView.setText(SharedPrefUtils.getString(keyPref));
}
}
}
if (isHidden) {
mTextView.setVisibility(View.GONE);
}
}
}
in ActivityB you can
class ActivityB extends AppCompatActivity {
public static final int resultSuccess = 0x11
public static final int resultFailure = 0x33
public static final String resultKey = "keyForResult"
private void onListItemClick(final String soundString) {
// optional you can also do this
SharedPrefUtils.saveString(ActivityA.keyPref, soundString);
// better to do this
final Intent returnIntent = getIntent() != null ? getIntent() : new Intent();
returnIntent.putExtra(resultKey, soundString);
if (getCallingActivity() != null) {
setResult(returnIntent, resultSuccess);
}
onBackPressed();
}
}
I need to call a new activity, when a button inside one of my recyclerview row elements is called. Each row item in the list contains 4 buttons, one of which needs to open a new activity which will be used to edit the data in that row.
Here is the code for my button so far:
public void onBindViewHolder(CounterLayoutAdapter.ViewHolder holder, final
int position) {
final Counter counter = counterList.get(position);
//counter is a class which holds the data that will be displayed on one
//row
String comment = counter.getComment();
String name = counter.getCounterName();
int number = counter.getCurrentValue();
//LocalDate modifyDate = counter.getLastModifyDate();
Button up = holder.itemView.findViewById(R.id.buttonUp);
Button down = holder.itemView.findViewById(R.id.buttonDown);
Button reset = holder.itemView.findViewById(R.id.buttonReset);
Button edit = holder.itemView.findViewById(R.id.buttonEdit);
Button delete = holder.itemView.findViewById(R.id.buttonDelete);
// code for 4 other buttons goes here
//
edit.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
}
});
Since I need the activity that I open to return user inputted data for me, I am using startActivityForResult. However, as far as I can tell, this will only work inside an actual activity class.
So then I tried passing the mainactivity context to my CounterLayoutAdapter class, where all of my button code is. However, the OnBindViewHolder method still cannot access it there. So I tried to pass the context to OnBindViewHolder, but that doesn't work either, as it won't override the abstract class if i do that..
So, how on earth can I call a new activity here?
Alternatively, if there is some other way to get user input into 4 fields and return that input back to the adapter, without calling an activity, that would work as well.
EDIT: viewholder and layout inflation
public static class ViewHolder extends RecyclerView.ViewHolder implements
View.OnClickListener {
private TextView name;
private TextView comment;
private TextView number;
//private TextView date;
public ViewHolder(View itemView) {
super(itemView);
itemView.setOnClickListener(this);
comment = itemView.findViewById(R.id.textComment);
name = itemView.findViewById(R.id.textName);
number = itemView.findViewById(R.id.editTextNum);
//date = itemView.findViewById(R.id.textDate);
}
#Override
public void onClick(View view) {}
}
#Override
public ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
View inflatedView =
LayoutInflater.from(parent.getContext()).inflate(R.layout
.row_layout, parent, false);
return new ViewHolder(inflatedView);
}
You can call startActivityForResult() in adapter class.
Get context in adapter like Context context=holder.up.getContext();
then in your button's OnClickListener do this.
edit.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
Intent intent=new Intent(context,ActivityYouWantToStart.class);
//Pass any extras if you want to.
((Activity)context).startActivityForResult(intent,REQUEST_CODE);
}
});
Then in your activity (which contain this recyclerView) override onActivityResult like this
#Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
if (requestCode == REQUEST_CODE) {//same REQUEST_CODE you used in adapter
if (resultCode == RESULT_OK) {
//Do your thing and get the data you want.
adapter.onDataReady(Data data);//where adapter is your recycler adapter,
//and data is whatever data you want to pass to adapter
//(Data you got from the activityResult, do not confuse it with onActivityResult's parameter 'Intent data')
}
}
}
Finally in your Recycler Adapter class, define onDataReady() function like
public void onDataReady(Data data){
//Update RecyclerView with new data
}
Hope this helps. I once did this, and it works for me. Let me know if you have any problem.
As you see , you do not have to findViewById in onBindViewHolder.
public void onBindViewHolder(CounterLayoutAdapter.ViewHolder holder, final
int position) {
final Counter counter = counterList.get(position);
//counter is a class which holds the data that will be displayed on one
//row
String comment = counter.getComment();
String name = counter.getCounterName();
int number = counter.getCurrentValue();
//LocalDate modifyDate = counter.getLastModifyDate();
holder.edit.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
}
});
Then you should init edit in ViewHolder constructor.
public ViewHolder(View itemView) {
super(itemView);
itemView.setOnClickListener(this);
comment = itemView.findViewById(R.id.textComment);
name = itemView.findViewById(R.id.textName);
number = itemView.findViewById(R.id.editTextNum);
//date = itemView.findViewById(R.id.textDate);
// init four button
edit = itemView.findViewById(R.id.buttonEdit)
}
I am creating an android dictionary app with sounds... I have listview, when an item is selected, a new activity open, inside the new activity contains 4 textviews and an image button, the textviews function perfectly but the image button was not. The audio files are placed in raw folder. How can I put the specific sounds of an item that was clicked?
Here's the code:
MainActivityJava
public class MainActivity extends AppCompatActivity {
ListView lv;
SearchView sv;
String[] tagalog= new String[] {"alaala (png.)","araw (png.)","baliw (png.)","basura (png.)",
"kaibigan (png.)","kakatuwa (pu.)", "kasunduan (png.)","dambuhala (png.)",
"dulo (png.)","gawin (pd.)","guni-guni (png.)","hagdan (png.)","hintay (pd.)",
"idlip (png.)","maganda (pu.)","masarap (pu.)", "matalino (pu.)"};
int[] sounds= new int[]{R.raw.alaala,
R.raw.araw,
R.raw.baliw,
R.raw.basura,
R.raw.kaibigan,
R.raw.kakatuwa,
R.raw.kasunduan,
};
ArrayAdapter<String> adapter;
#TargetApi(Build.VERSION_CODES.HONEYCOMB)
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
lv = (ListView) findViewById(R.id.listView1);
sv = (SearchView) findViewById(R.id.searchView1);
adapter = new ArrayAdapter<String>(this, android.R.layout.simple_list_item_1,tagalog);
lv.setAdapter(adapter);
lv.setOnItemClickListener(new OnItemClickListener() {
#Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
String tagword =tagalog[position];
String[] definition = getResources().getStringArray(R.array.definition);
final String definitionlabel = definition[position];
String[] cuyuno = getResources().getStringArray(R.array.cuyuno);
final String cuyunodefinition = cuyuno[position];
String[] english = getResources().getStringArray(R.array.english);
final String englishdefinition = english[position];
Intent intent = new Intent(getApplicationContext(), DefinitionActivity.class);
intent.putExtra("tagword", tagword);
intent.putExtra("definitionlabel", definitionlabel);
intent.putExtra("cuyunodefinition",cuyunodefinition);
intent.putExtra("englishdefinition", englishdefinition);
startActivity(intent);
}
});
sv.setOnQueryTextListener(new SearchView.OnQueryTextListener() {
#Override
public boolean onQueryTextSubmit(String text) {
return false;
}
#Override
public boolean onQueryTextChange(String text) {
adapter.getFilter().filter(text);
return false;
}
});
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
return super.onCreateOptionsMenu(menu);
}
}
DefinitionActivity.java
public class DefinitionActivity extends AppCompatActivity {
MediaPlayer mp;
String tagalogword;
String worddefinition;
String cuyunoword;
String englishword;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_definition);
TextView wordtv = (TextView) findViewById(R.id.wordtv);
TextView definitiontv = (TextView) findViewById(R.id.definitiontv);
TextView cuyunotv = (TextView) findViewById(R.id.cuyunotv);
TextView englishtv = (TextView) findViewById(R.id.englishtv);
ImageButton playbtn = (ImageButton) findViewById(R.id.playbtn);
final Bundle extras = getIntent().getExtras();
if (extras != null) {
tagalogword = extras.getString("tagword");
wordtv.setText(tagalogword);
worddefinition = extras.getString("definitionlabel");
definitiontv.setText(worddefinition);
cuyunoword = extras.getString("cuyunodefinition");
cuyunotv.setText(cuyunoword);
englishword = extras.getString("englishdefinition");
englishtv.setText(englishword);
}
playbtn.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
}
});
}
you can pass the raw id in the intent extra and play it on meadiaPlayer
What you want to accomplish is pretty simple.
you can ofcourse pass the id.
But I created this method for your case you can paste it in your activity or class and make a call to it. In my case, I put this method in a class that holds all the common functions, methods, strings, etc. The choice is yours :
public static void playDisSound(Context c, int soundID){
//Play short tune
MediaPlayer mediaPlayer = MediaPlayer.create(c, soundID);
mediaPlayer.setOnCompletionListener( new OnCompletionListener(){
#Override
public void onCompletion( MediaPlayer mp){
mp.release();
}
});
mediaPlayer.start();
}
And this is how to use it in your case :
Example I want to play an audio track from :
int[] sounds= new int[]{R.raw.alaala,
R.raw.araw,
R.raw.baliw,
R.raw.basura,
R.raw.kaibigan,
R.raw.kakatuwa,
R.raw.kasunduan,
};
So I just do :
//TODO ~ pls. remember to define context inside "onCreate" as
//call this before "onCreate"
Context context;
//And do this inside "onCreate" :
context = getApplicationContext();
OR
context = MainActivity.this;
//Then here comes the solution, just make a call to the playDisSound method with the id , in this case the "sounds[postion_referencer_i]"
playDisSound(context, sounds[postion_referencer_i]);
//And now on the question of what your "position_referencer_i" would be .... it also depends on how you intend to pass the id.
Are your going to make a match between the position picked and the position of the sound. It depends on you. But I would have created a set of integers to signify which try I want to play and do a matching simple calculation between the position picked for the item clicked to arrive at the position_referencer_id.
//But simply : note that in your array if I want to play for example "R.raw.baliw" I would just call :
playDisSound(context, R.raw.baliw);
I hope this works perfectly for you. So if I elaborated too much. Do let me know if you may need to stream the sound so I would just paste/send you a very cool method I have been using here in an app am working.
//FINALLY PLS. Remember this : this method would play the sound alright but it wont hesitate to play the sound all over again if you repeat the process. So do remember to check if the sound did play and finished before allowing the user to repeat, if not it could lead to repeated or kind of two speakers playing from the same song but at different time. (And the user may start to think that there is problem with the app. Pls. be very logical and sensitive in using this method)
In solving that, you can disable the button or the UI element that initiates the sound playing until the sound has finished playing, by way of monitoring duration of the track (which I am sure you should know and inculcate into your logic or by simply listening if sound is already playing)
All the best. Era. :)
Right now I am have a activity screen with edittext lines that I am obtaining user input from. When I hit the create event button on the button, the event text should populate into a news feed that I have on another activity.
Here is the portion CreateEvent activity/screen code:
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.create_event);
CreateEvent_Button = (Button)findViewById(R.id.create_event_button);
WhatEvent_Text = (EditText)findViewById(R.id.what_event);
WhenEventTime_Text = (EditText)findViewById(R.id.time_event);
WhenEventDate_Text = (EditText)findViewById(R.id.date_event);
WhereEvent_Text = (EditText)findViewById(R.id.where_event);
CreateEvent_Button.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
WhatEvent_String = WhatEvent_Text.getText().toString();
WhenEventTime_String = WhenEventTime_Text.getText().toString();
WhenEventDate_String = WhenEventDate_Text.getText().toString();
WhereEvent_String = WhereEvent_Text.getText().toString();
Log.e("What: ", WhatEvent_String);
Log.e("When_Time: ", WhenEventTime_String);
Log.e("When_Date: ", WhenEventDate_String);
Log.e("Where_Event: ", WhereEvent_String);
Intent intent = new Intent(CreateEvent.this,MainActivity.class);
intent.putExtra("WhatEvent_String", WhatEvent_String);
intent.putExtra("WhenEventTime_String", WhenEventTime_String);
intent.putExtra("WhenEventDate_String", WhenEventDate_String);
intent.putExtra("WhereEvent_String", WhereEvent_String);
startActivity(intent);
MainActivity main= new MainActivity();
//make sure you call method from other class correctly
main.addEvent();
}
});
}
When the create event button is pressed, it creates an event into the MainActivity screen/activity; however, the user input is null. I am not sure why this is happening because I believe I am using the intent methods correctly.
Here is my MainActivity screen.
Here is the getIntent method in my onCreate method in my MainActivity
Intent intent = getIntent();
if (null != intent) {
test = intent.getStringExtra("WhatEvent_String");
}
However, when I call my addEvent method:
protected void addEvent() {
// Instantiate a new "row" view.
// final ViewGroup newView = (ViewGroup) LayoutInflater.from(this).inflate(R.layout.list_row, mContainerView, false);
// Set the text in the new row to a random country.
// Because mContainerView has android:animateLayoutChanges set to true,
// adding this view is automatically animated.
//mContainerView.addView(newView, 0);
HitupEvent hitupEvent = new HitupEvent();
hitupEvent.setTitle("Rohit "+ "wants to "+test );
hitupEvent.setThumbnailUrl(roro_photo);
//hitupEvent.setRating(30);
//hitupEvent.setYear(1995);
//hitupEvent.setThumbnailUrl(null);
ArrayList<String> singleAddress = new ArrayList<String>();
singleAddress.add("17 Fake Street");
singleAddress.add("Phoney town");
singleAddress.add("Makebelieveland");
hitupEvent.setGenre(singleAddress);
hitupEventList.add(hitupEvent);
adapter.notifyDataSetChanged();
}
The event input text is null. I am not sure why this is happening.
I tried to resolve it but no luck,
How to send string from one activity to another?
Pass a String from one Activity to another Activity in Android
Any idea as for how to resolve this?!
Thanks!
Don't use Intent to get the String you put through putExtra()
Intent intent = getIntent(); // don't use this
if (null != intent) {
test = intent.getStringExtra("WhatEvent_String");
}
Instead Use Bundle, an example snippet
Bundle extra = getIntent().getExtras();
if(extra!=null){
test= extra.getString("WhatEvent_String");
}
EDIT
I noticed just now that you're calling the method main.addEvent() from the wrong place ! Call it in the MainActivity in the onCreate() method.
Remove these lines
MainActivity main= new MainActivity();
//make sure you call method from other class correctly
main.addEvent();
and in your MainActivity
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.yourLayout);
Bundle extra = getIntent().getExtras();
if(extra!=null){
test= extra.getString("WhatEvent_String");
}
addEvent(); // call your addEvent() method here
}