How can I change the background color of a Main Activity by using spinner while clicking a button in the...
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I want to change the background color of Main activity by using spinner in second Activity. I have already created one button and it goes to second activity and in this second activity I have created spinner which consist of which color should be in the main activity. After choosing the color, the button I created will change the background color and will be back to first activity.
java
android 
android-studio asked Nov 23 '18 at 20:46
Semih AltaşSemih Altaş
111
add a comment |
2
I want to change the background color of Main activity by using spinner in second Activity. I have already created one button and it goes to second activity and in this second activity I have created spinner which consist of which color should be in the main activity. After choosing the color, the button I created will change the background color and will be back to first activity.
java
android android-studio asked Nov 23 '18 at 20:46
Semih AltaşSemih Altaş
111
Make a model of the colour class, create colour object, get and set the colour object accordingly. Therefore, in your second activity, you'll create a colour object and set the desired colour on setOnItemSelectedListener. When you get back to the MainActivity, get the object and set the colour accordingly.
– Nero
Nov 23 '18 at 21:22
Thank you so much!
– Semih Altaş
Nov 27 '18 at 21:22
add a comment |
2
2
2
I want to change the background color of Main activity by using spinner in second Activity. I have already created one button and it goes to second activity and in this second activity I have created spinner which consist of which color should be in the main activity. After choosing the color, the button I created will change the background color and will be back to first activity.
java
android android-studio asked Nov 23 '18 at 20:46
Semih AltaşSemih Altaş
111
I want to change the background color of Main activity by using spinner in second Activity. I have already created one button and it goes to second activity and in this second activity I have created spinner which consist of which color should be in the main activity. After choosing the color, the button I created will change the background color and will be back to first activity.
java
android android-studio java
android android-studio asked Nov 23 '18 at 20:46
Semih AltaşSemih Altaş
111
asked Nov 23 '18 at 20:46
Semih AltaşSemih Altaş
111
asked Nov 23 '18 at 20:46
Semih AltaşSemih Altaş
111
asked Nov 23 '18 at 20:46
Semih AltaşSemih Altaş
111
asked Nov 23 '18 at 20:46
Semih AltaşSemih Altaş
111
111
Make a model of the colour class, create colour object, get and set the colour object accordingly. Therefore, in your second activity, you'll create a colour object and set the desired colour on setOnItemSelectedListener. When you get back to the MainActivity, get the object and set the colour accordingly.
– Nero
Nov 23 '18 at 21:22
Thank you so much!
– Semih Altaş
Nov 27 '18 at 21:22
add a comment |
Make a model of the colour class, create colour object, get and set the colour object accordingly. Therefore, in your second activity, you'll create a colour object and set the desired colour on setOnItemSelectedListener. When you get back to the MainActivity, get the object and set the colour accordingly.
– Nero
Nov 23 '18 at 21:22
Thank you so much!
– Semih Altaş
Nov 27 '18 at 21:22
Make a model of the colour class, create colour object, get and set the colour object accordingly. Therefore, in your second activity, you'll create a colour object and set the desired colour on setOnItemSelectedListener. When you get back to the MainActivity, get the object and set the colour accordingly.
– Nero
Nov 23 '18 at 21:22
Make a model of the colour class, create colour object, get and set the colour object accordingly. Therefore, in your second activity, you'll create a colour object and set the desired colour on setOnItemSelectedListener. When you get back to the MainActivity, get the object and set the colour accordingly.
– Nero
Nov 23 '18 at 21:22
Thank you so much!
– Semih Altaş
Nov 27 '18 at 21:22
Thank you so much!
– Semih Altaş
Nov 27 '18 at 21:22
add a comment |
1 Answer
1
active
oldest
votes
0
From what I understand, you need the ActivityForResult behavior.
- You use
startActivityForResultto fire the Intent from your first activity to your second, along with a request code. - You use an Intent and
setResultto send data from your second activity back to your first. - You override
onActivityResultin your fist activity to get and use your data.
Sample code:
public class FirstActivity extends Activity {
private static final int PICK_COLOR_REQUEST = 1001;
...
private void pickColor() {
Intent pickColorIntent = new Intent(this, SecondActivity.class);
startActivityForResult(pickColorIntent, PICK_COLOR_REQUEST);
}
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
if (requestCode == PICK_COLOR_REQUEST && resultCode == Activity.RESULT_OK) {
int color = data.getIntExtra("color");
/* use the color */
}
}
}
public class SecondActivity extends Activity {
...
private void onColorPicked(int color) {
Intent dataIntent = new Intent();
dataIntent.putExtra("color", color);
setResult(Activity.RESULT_OK,returnIntent);
finish();
}
}
answered Nov 24 '18 at 0:19
iFanieiFanie
1868
Thank you so much! It helped a lot!
– Semih Altaş
Nov 27 '18 at 21:21
@SemihAltaş great to hear, if you want, mark my answer as correct
– iFanie
Nov 28 '18 at 19:14
add a comment |
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1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
0
From what I understand, you need the ActivityForResult behavior.
- You use
startActivityForResultto fire the Intent from your first activity to your second, along with a request code. - You use an Intent and
setResultto send data from your second activity back to your first. - You override
onActivityResultin your fist activity to get and use your data.
Sample code:
public class FirstActivity extends Activity {
private static final int PICK_COLOR_REQUEST = 1001;
...
private void pickColor() {
Intent pickColorIntent = new Intent(this, SecondActivity.class);
startActivityForResult(pickColorIntent, PICK_COLOR_REQUEST);
}
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
if (requestCode == PICK_COLOR_REQUEST && resultCode == Activity.RESULT_OK) {
int color = data.getIntExtra("color");
/* use the color */
}
}
}
public class SecondActivity extends Activity {
...
private void onColorPicked(int color) {
Intent dataIntent = new Intent();
dataIntent.putExtra("color", color);
setResult(Activity.RESULT_OK,returnIntent);
finish();
}
}
answered Nov 24 '18 at 0:19
iFanieiFanie
1868
Thank you so much! It helped a lot!
– Semih Altaş
Nov 27 '18 at 21:21
@SemihAltaş great to hear, if you want, mark my answer as correct
– iFanie
Nov 28 '18 at 19:14
add a comment |
0
From what I understand, you need the ActivityForResult behavior.
- You use
startActivityForResultto fire the Intent from your first activity to your second, along with a request code. - You use an Intent and
setResultto send data from your second activity back to your first. - You override
onActivityResultin your fist activity to get and use your data.
Sample code:
public class FirstActivity extends Activity {
private static final int PICK_COLOR_REQUEST = 1001;
...
private void pickColor() {
Intent pickColorIntent = new Intent(this, SecondActivity.class);
startActivityForResult(pickColorIntent, PICK_COLOR_REQUEST);
}
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
if (requestCode == PICK_COLOR_REQUEST && resultCode == Activity.RESULT_OK) {
int color = data.getIntExtra("color");
/* use the color */
}
}
}
public class SecondActivity extends Activity {
...
private void onColorPicked(int color) {
Intent dataIntent = new Intent();
dataIntent.putExtra("color", color);
setResult(Activity.RESULT_OK,returnIntent);
finish();
}
}
answered Nov 24 '18 at 0:19
iFanieiFanie
1868
Thank you so much! It helped a lot!
– Semih Altaş
Nov 27 '18 at 21:21
@SemihAltaş great to hear, if you want, mark my answer as correct
– iFanie
Nov 28 '18 at 19:14
add a comment |
0
0
0
From what I understand, you need the ActivityForResult behavior.
- You use
startActivityForResultto fire the Intent from your first activity to your second, along with a request code. - You use an Intent and
setResultto send data from your second activity back to your first. - You override
onActivityResultin your fist activity to get and use your data.
Sample code:
public class FirstActivity extends Activity {
private static final int PICK_COLOR_REQUEST = 1001;
...
private void pickColor() {
Intent pickColorIntent = new Intent(this, SecondActivity.class);
startActivityForResult(pickColorIntent, PICK_COLOR_REQUEST);
}
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
if (requestCode == PICK_COLOR_REQUEST && resultCode == Activity.RESULT_OK) {
int color = data.getIntExtra("color");
/* use the color */
}
}
}
public class SecondActivity extends Activity {
...
private void onColorPicked(int color) {
Intent dataIntent = new Intent();
dataIntent.putExtra("color", color);
setResult(Activity.RESULT_OK,returnIntent);
finish();
}
}
answered Nov 24 '18 at 0:19
iFanieiFanie
1868
From what I understand, you need the ActivityForResult behavior.
- You use
startActivityForResultto fire the Intent from your first activity to your second, along with a request code. - You use an Intent and
setResultto send data from your second activity back to your first. - You override
onActivityResultin your fist activity to get and use your data.
Sample code:
public class FirstActivity extends Activity {
private static final int PICK_COLOR_REQUEST = 1001;
...
private void pickColor() {
Intent pickColorIntent = new Intent(this, SecondActivity.class);
startActivityForResult(pickColorIntent, PICK_COLOR_REQUEST);
}
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
if (requestCode == PICK_COLOR_REQUEST && resultCode == Activity.RESULT_OK) {
int color = data.getIntExtra("color");
/* use the color */
}
}
}
public class SecondActivity extends Activity {
...
private void onColorPicked(int color) {
Intent dataIntent = new Intent();
dataIntent.putExtra("color", color);
setResult(Activity.RESULT_OK,returnIntent);
finish();
}
}
answered Nov 24 '18 at 0:19
iFanieiFanie
1868
answered Nov 24 '18 at 0:19
iFanieiFanie
1868
answered Nov 24 '18 at 0:19
iFanieiFanie
1868
answered Nov 24 '18 at 0:19
iFanieiFanie
1868
1868
Thank you so much! It helped a lot!
– Semih Altaş
Nov 27 '18 at 21:21
@SemihAltaş great to hear, if you want, mark my answer as correct
– iFanie
Nov 28 '18 at 19:14
add a comment |
Thank you so much! It helped a lot!
– Semih Altaş
Nov 27 '18 at 21:21
@SemihAltaş great to hear, if you want, mark my answer as correct
– iFanie
Nov 28 '18 at 19:14
Thank you so much! It helped a lot!
– Semih Altaş
Nov 27 '18 at 21:21
Thank you so much! It helped a lot!
– Semih Altaş
Nov 27 '18 at 21:21
@SemihAltaş great to hear, if you want, mark my answer as correct
– iFanie
Nov 28 '18 at 19:14
@SemihAltaş great to hear, if you want, mark my answer as correct
– iFanie
Nov 28 '18 at 19:14
add a comment |
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Make a model of the colour class, create colour object, get and set the colour object accordingly. Therefore, in your second activity, you'll create a colour object and set the desired colour on setOnItemSelectedListener. When you get back to the MainActivity, get the object and set the colour accordingly.
– Nero
Nov 23 '18 at 21:22
Thank you so much!
– Semih Altaş
Nov 27 '18 at 21:22