passing a long value from one intent to another

问题

I am trying to pass a long value from intent of one class to another. But Somehow I dont seem to get the syntax or method to do so. This would solve 90% of my problem. Passing it from a method called intentfunction(setid) in the MainActivity.java to a received intent in SelectOptions.java.

/--MainActivity.java---/

private void intentfunction(long setid)
{
     Intent intent = new Intent(this, SelectOptions.class);
     //editText = (EditText) findViewById(R.id.editText1);
     //editText = new EditText(this);
     etGWid.setText("");   //set the edit text to blank
    //String message = "TestHello";

    intent.putExtra(EXTRA_MESSAGE, setid);
    startActivity(intent);

}

SOmething like the above i wish to implement. And here goes the received part of Selectoptions.java

final Intent intent = getIntent();
    //String message = intent.getStringExtra(MainActivity.EXTRA_MESSAGE);
    long getid = intent.getLongExtra(MainActivity.EXTRA_MESSAGE, defaultValue)

Something like this.

回答1:

You have passed your intents correctly, now in the receiving activity to get the intent you could use bundles,

Bundle extras = getIntent().getExtras(); 
if (extras != null) {
    long getid = extras.getString('KEY',default_value);
}

来源：https://stackoverflow.com/questions/13671926/passing-a-long-value-from-one-intent-to-another