Is it possible to define the source of a click? I can access my MainActivity through either clicking on a RecyclerView or through a Notification action. Depending on which it is, I need to provide different info. Is there a way of saying: if click is from recyclerview then..., else if it is from notification action then...?
What I can think of so far is this, but the problem is I am not using buttons as such:
Button mClickButton1 = (Button)findViewById(R.id.clickButton1);
mClickButton1.setOnClickListener(this);
Button mClickButton2 = (Button)findViewById(R.id.clickButton2);
mClickButton2.setOnClickListener(this);
public void onClick(View v) {
switch (v.getId()) {
case R.id.clickButton1: {
// do something for button 1 click
break;
}
case R.id.clickButton2: {
// do something for button 2 click
break;
}
}
}
Thanks!
you have to define two different calling intents for the same activity and put info for each View Example :
mClickButton1.setOnClickListener(new onClickListener(){
public void onClick(View v) {
Intent view1_int = new Intent (this, MainActivity.class);
view1_int.putExtra("Calling Intent" ,"RecyclerView");
startaActivityForResult(view1_int);
}
});
mClickButton2.setOnClickListener(new onClickListener(){
public void onClick(View v) {
Intent view2_int = new Intent (this, MainActivity.class);
view1_int.putExtra("Calling Intent" ,"Notification action");
startaActivityForResult(view1_int);
}
});
and in the onCreate Method in your MainActivity you can say :
String callin_view;
callin_view =getresources.getIntent.getExtras("Calling_Intent");
This will retrieve the name of the calling source you defined
Related
I've been trying to find out the back navigation button to lead to another activity.
Every time when I pressed the back button, it goes to the previous activity which is not what I want. I would like to set the back button that goes to another activity I want, instead of previous one.
For example, I have Activity 1, 2 and 3. I was in Activity 2 and just moved to Activity 3. But when I press the back button, it goes automatically to the previous activity which is Activity 2. I want to make it to Activity 1 and not Activity 2. Can anyone suggest me a solution please?
You can make the button to go to a specific activity, instead of having the default behavior that you described.
It can be something like this:
#Override
public void onClick(View v) {
Intent intent = new Intent(Activity2.this, Activity3.class);
intent.putExtra("variable", information); //this is optional, but can be useful if you need to send a specific info to the next activity
startActivity(intent);
}
Activity 2 is parliamonar, and Activity 3 is federalparliamentary. I replaced parliamonar with Activity 1, but it still didn't solve the problem.
public class federalparliamentary extends AppCompatActivity {
Button federal;
private Object parliamonar;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_federalparliamentary);
federal = findViewById(R.id.back160);
federal.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
Intent reserve = new Intent(getApplicationContext(), parliamonar.class);
startActivity(reserve);
}
});
federal = findViewById(R.id.next164);
federal.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
Intent reserve = new Intent(getApplicationContext(), sar.class);
startActivity(reserve);
}
});
}
public void onClick(View V) {
Intent back = new Intent((Context) parliamonar, federalparliamentary.class);
startActivity(back);
}
}
public class federalparliamentary extends AppCompatActivity {
Button federal;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_federalparliamentary);
federal = findViewById(R.id.back160);
federal.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
Intent reserve = new Intent(getApplicationContext(), parliamonar.class);
startActivity(reserve);
}
});
federal = findViewById(R.id.next164);
federal.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
Intent reserve = new Intent(getApplicationContext(), sar.class);
startActivity(reserve);
}
});
}
public void Onclick(View v) {
Intent intent = new Intent(federalparliamentary.this, politicalsystem.class);
startActivity(intent);
}
}
Activity 1 is "politicalsystem".
I added with #Override method, but it says that I have to remove the method, so I added outside, then it says that I have to extract interface, so clicked on it, then it gave me a bunch of list. So I chose onClick(v:View ):void, but it still didn't solve the issue. I tried in another way without #Override, but nothing changed when I tested my app. I also tried inside onCreate method which did not modified the navigation as I desired.
Sorry if this is poor etiquette but I have now re-written my entire question as the original question I asked didn't actually relate to my problem as I have just realised. I am having trouble updating the code in an activity after I return to it. The first activity contains a bunch of imageButtons which relate to levels. When the app is first run only the level one button is enabled. When that button is clicked it sends the user to a new activity where they must spell a set amount of words to unlock the next level. This is the code for my level select activity.
public class QuizLevelSelect extends AppCompatActivity {
private static int myLevel;
ImageButton level1, level2, level3, level4;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_quiz_level_select);
TextView title = (TextView) findViewById(R.id.title);
Typeface custom_font = Typeface.createFromAsset(getAssets(), "fonts/variane-script.regular.ttf");
title.setTypeface(custom_font);
level1 = (ImageButton)findViewById(R.id.level1);
level2 = (ImageButton)findViewById(R.id.level2);
level2.setEnabled(false);
level3 = (ImageButton)findViewById(R.id.level3);
level3.setEnabled(false);
level4 = (ImageButton)findViewById(R.id.level4);
level4.setEnabled(false);
level1.setOnClickListener(new View.OnClickListener(){
#Override
public void onClick(View v){
Intent i = new Intent(getApplicationContext(), Main2Activity.class);
i.putExtra("intVariableName", 1);
startActivity(i);
finish();
}
});
level2.setOnClickListener(new View.OnClickListener(){
#Override
public void onClick(View v){
Intent i = new Intent(getApplicationContext(), Main2Activity.class);
i.putExtra("intVariableName", 2);
startActivity(i);
finish();
}
});
level3.setOnClickListener(new View.OnClickListener(){
#Override
public void onClick(View v){
Intent i = new Intent(getApplicationContext(), Main2Activity.class);
i.putExtra("intVariableName", 3);
startActivity(i);
}
});
}
#Override
protected void onResume(){
super.onResume();
ParseQuery<ParseObject> query = ParseQuery.getQuery("Wordbank");
query.whereEqualTo("username", ParseUser.getCurrentUser().getUsername());
query.findInBackground(new FindCallback<ParseObject>() {
#Override
public void done(List<ParseObject> objects, ParseException e) {
for (ParseObject object : objects){
myLevel = object.getInt("level");
}
});
if (myLevel == 2){
level2.setEnabled(true);
}
}
}
When the level one button is clicked it starts a new activity where the user has to spell a set amount of words (only 1 at the moment, for testing purposes), when the user has spelled the required words it is supposed to send them back to the level select activity and unlock the level 2 button. This is the code for the second activity that checks they have spelled the words and then updates the level they are at on Parse.com before returning them to the level select activity.
if (count == 1){
ParseQuery<ParseObject> query2 = ParseQuery.getQuery("Wordbank");
query2.whereEqualTo("username", ParseUser.getCurrentUser().getUsername());
query2.findInBackground(new FindCallback<ParseObject>() {
#Override
public void done(List<ParseObject> objects, ParseException e) {
if (e == null) {
objects.get(0).put("level", ++intValue);
objects.get(0).saveInBackground();
Intent i = new Intent(getApplicationContext(), QuizLevelSelect.class);
startActivity(i);
finish();
}
}
});
}
All of this works fine except when the user returns to the level select activity, the level 2 button does not become enabled, however if I press back on my phone and then go back into the level select activity it does become enabled. I am assuming this is because when the second activity returns the user to the level select activity the onResume() method is not being run, I have also tried onStart() and onRestart() but neither worked. I know it has something to do with the life cycle of my activities but I dont understand why I have to back out of the activity and then go back into it for the onResume method to run, I thought it ran everytime regardless.
So I've implemented a double press to exit on my mainactivity which exits fine if I go to settings activity or to game activity. However, if I go mainactivity --> gameactivity --> gameoveractivity and then press back it starts the mainactivity fine but then double pressing just returns to gameoveractivity and I'm not sure why as I call finish when starting mainactivity from gameoveractivity.
mainscreenactivity:
// button listeners
playButton.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View arg0) {
Intent gameActivityIntent = new Intent(MainScreenActivity.this, GameActivity.class);
startActivity(gameActivityIntent);
overridePendingTransition(R.anim.righttocenter, R.anim.centertoleft);
finish();
}
});
settingsButton.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View v) {
Intent settingsActivityIntent = new Intent(MainScreenActivity.this, SettingsActivity.class);
MainScreenActivity.this.startActivity(settingsActivityIntent);
overridePendingTransition(R.anim.righttocenter, R.anim.centertoleft);
}
});
gameactivity:
// handle hardware back button
#Override
public void onBackPressed() {
Intent mainScreenActivityIntent = new Intent(GameActivity.this, MainScreenActivity.class);
startActivity(mainScreenActivityIntent);
overridePendingTransition(R.anim.lefttocenter, R.anim.centertoright);
finish();
}
logic code to handle going to gameoveractivity:
if (weight.getBounds().intersect(player.getBounds())) {
timer.cancel();
gameTimer.cancel();
player.setTouched(false);
save(score, time);
Intent gameOverIntent = new Intent(this.getContext(), GameOverActivity.class);
this.getContext().startActivity(gameOverIntent);
((Activity) this.getContext()).finish();
}
gameoveractivity:
// handle hardware back button
#Override
public void onBackPressed() {
Intent mainScreenActivityIntent = new Intent(GameOverActivity.this, MainScreenActivity.class);
mainScreenActivityIntent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
GameOverActivity.this.startActivity(mainScreenActivityIntent);
overridePendingTransition(R.anim.lefttocenter, R.anim.centertoright);
finish();
}
Edit: Managed to fix this by adding this: gameOverIntent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
in the game logic code after creating the gameoveractivityintent.
Managed to fix this by adding this:
gameOverIntent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
in the game logic code after creating the gameoveractivityintent.
I am working on an android app that launches two activities using the on click listener everything in my code checks out fine except where the public void onClick(View v) begins I have multiple errors starting on that line and I am unable to run the code? I would kindly appreciate any help as I am fairly new to this. My code is as follows
public class Safaricom extends Activity {
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.safaricom);
Button button1 = (Button)findViewById(R.id.button1);
Button button2 = (Button)findViewById(R.id.button2);
button1.setOnClickListener(buttonClickListener);
button2.setOnClickListener(buttonClickListener);
}
private OnClickListener buttonClickListener = new View.OnClickListener() {
#Override
public void onClick(View v) {
Intent intent = null;
switch(v.getId()){
case R.id.button1:
intent = new Intent(this, Second.class);
break;
case R.id.button2:
intent = new Intent(this, SignUp.class);
break;
}
if (intent != null)
this.startActivity(intent);
}
};
}
The Errors are at two points.
First where it says public void on click view ( The Error is - Multiple Markers at this line - implements android.view.View.OnClickListener.onClick- The method onClick(View) of type new View.OnClickListener(){} must override a superclass )
Second where it says this.startActivity(intent); (The Error is -The method startActivity(Intent) is undefined for the type new View.OnClickListener(){})
Instead of this use v.getContext() or YOUR_ACTIVITY.this
Actually If you read the Docs carefully, you will know that Intent parameters contain Activity so when you are using this it means that you are giving a parameter of type new View.OnClickListener
Well, I can see right off a couple of errors. To make it clearer since it apparently was not clear by simply looking at the code and learning. I added Safaricom.this in each of the new Intent statements. This is because the Intent constructor needs a Context as the first argument and an OnClickListener is not a Context, you need to ge the enclosing Activity which is a context. One other edit, I missed, the startActivity also needs to have Safaricom prepended.
public class Safaricom extends Activity {
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.safaricom);
Button button1 = (Button)findViewById(R.id.button1);
Button button2 = (Button)findViewById(R.id.button2);
button1.setOnClickListener(buttonClickListener);
button2.setOnClickListener(buttonClickListener);
}
private OnClickListener buttonClickListener = new View.OnClickListener() {
#Override
public void onClick(View v) {
Intent intent = null;
switch(v.getId()){
case R.id.button1:
intent = new Intent(Safaricom.this, Second.class);
break;
case R.id.button2:
intent = new Intent(Safaricom.this, SignUp.class);
break;
}
if (intent != null)
Safaricom.this.startActivity(intent);
}
};
}
For the first error
The Error is - Multiple Markers at this line - implements android.view.View.OnClickListener.onClick- The method onClick(View) of type new View.OnClickListener(){} must override a superclass )
Try removing the #override
If that doesn't remove the second error then let us know if there is a different issue arising.
I try the code below to call another activity while pressing the back button:
#Override
public boolean onKeyUp(int keyCode, KeyEvent msg) {
switch(keyCode) {
case(KeyEvent.KEYCODE_BACK):
Intent intent = new Intent(AActivity.this, BActivity.class).addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
Window w = NASGroup.group.getLocalActivityManager().startActivity("BActivity", intent);
View view = w.getDecorView();
MyGroup.group.setContentView(view);
return true;
}
return false;
}
But when I press the back button, it get out of the app.
I see the logcat, it does not run the function onKeyUp and doesn't output any message.
The same code in onKeyUp, I try to below code to a button in layout and it works.
cancel.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View v) {
Intent intent = new Intent(AActivity.this, BActivity.class).addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
Window w = NASGroup.group.getLocalActivityManager().startActivity("BActivity", intent);
View view = w.getDecorView();
MyGroup.group.setContentView(view);
}
});
How can I modify it?
To handle back press you have to override Onbackpress method.
#Override
public void onBackPressed() {
finish();
Intent intent = new Intent(Myactivity.this, other.class);
startActivity(intent);
}
Try overriding the activity's onBackPressed() method
from the docs : onBackPressed
Try like this...
#Override
public void onBackPressed() {
Intent BackpressedIntent = new Intent();
BackpressedIntent .setClass(getApplicationContext(),TargetActivity.class);
BackpressedIntent .setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
startActivity(BackpressedIntent );
finish();
}
For back button you have to override the OnBackPressed() in your activity as
#Override
public void onBackPressed() {
Intent intent=new Intent(currentclass.this,nextActivity.class);
startActivity(intent);
finish();
}
if you didnt finish the previous activity then no need to use intent and startActivity just call finish(); in the onBackPressed it will finish the current activity and previous activity will started.
If you are within Activity you can use onBackPressed which is a built-in method to handle back key press.