Android: passing parameters between classes
I have a class2 which is involved by class1 when clicks are made. I 开发者_如何学Gohave to pass some parameters/objects from class1 to class2. I only know the standard way which does not have an option of passing parameters.
// launch the full article
Intent i = new Intent(this, Class2.class);
startActivity(i);
You can use Intent.putExtra
(Which uses a Bundle
) to pass extra data.
Intent i = new Intent(this, Class2.class);
i.putExtra("foo", 5.0f);
i.putExtra("bar", "baz");
startActivity(i);
Then once you're inside your new Activity
:
Bundle extras = getIntent().getExtras();
if(extras !=null)
{
float foo = extras.getFloat("foo");
String bar = extras.getString("bar");
}
This allows you to pass basic data to Activities. However, you may need a bit more work for passing arbitrary objects along.
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