来自两个类的android Intent getextras

Question

I have the following method:

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    TextView name=(TextView)findViewById(R.id.nom);
    Bundle extras = getIntent().getExtras();//from class 1
    Bundle extras2=getIntent().getExtras();//from class/
    name.setText(extras.getString("nom"));//if methode in class1 works
    name.setText(extras2.getString("nombank"));//if methode in class 2 works
}

But i get empty name .

I need to get pass two Strings from two different classes(class1 and class2) to the MainActivity.java

Answer 1

Activity cannot be started by two different activities, just by one, so you must not use two different extras in your main class - you can use just one extra and put data with the same key value in both activities.

So, for example, if you have Class1 and Class2, when you create intent in both classes you should use:

Intent int = new Intent(this,MainActivity.class);
int.putExtra("nom",your_String);
...//Another code

And in MainActivity you get just one extra:

Bundle extra = getIntent().getExtras();
name.setText(extra.getString("nom"));

If Class1 and Class2 are started from MainActivity , use startActivityForResult() method instead.

Answer 2

You don't need any of that. Just do as shown below:

 name.setText(getIntent().getStringExtra("nom")); name.setText(getIntent().getStringExtra("nombank")); 

That's It, This is All You Need.

But you can't Put Two Intent Extras in the Same TextView. You can Only USE ONE

Answer 3

Just pass extra with same key and get in activity

Class 1

Intent class1 = new Intent(this,MainActivity.class);
class1.putExtra("same_key","class 1 string"); 

Class 2

Intent class2 = new Intent(this,MainActivity.class);
class2.putExtra("same_key","class 2 string"); 

MainActivity

   Bundle extras = getIntent().getExtras();

    //Called from Class1 show "class 1 string" 
    //Called from Class2 show "class 2 string" 
     name.setText(extras.getString("same_key"));

If MainActivity will called from Class 1 extra string will be from Class 1, if from Class 2 extra string will be from Class2.