Android: startActivityForResult & setResult for a view class and an activity class

Question

I am confused and have no idea on how to use the startActivityResults and setResults to get data from previous activity. I have a view class and a activity class.

B

Answer 1

After correcting the other code so that you can run the program, you can retrieve parameters back from your activity colorActivity in this way:

Step1: return some value from colorActivity

Intent resultIntent = new Intent();
resultIntent.putExtra("NAME OF THE PARAMETER", valueOfParameter);
...
setResult(Activity.RESULT_OK, resultIntent);
finish();

Step 2: collect data from the Main Activity

Overriding @onActivityResult(...).

@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
if (requestCode == 1) { // Please, use a final int instead of hardcoded int value
    if (resultCode == RESULT_OK) {
        String value = (String) data.getExtras().getString("NAME OF THE PARAMETER");

References

• http://developer.android.com/training/basics/intents/result.html
• How to manage `startActivityForResult` on Android?
• http://steveliles.github.io/returning_a_result_from_an_android_activity.html