1，传一个值的情况：
Main.activity
Pass value：
Intent intent = new Intent(MainActivity.this, SecondActivity.class);
intent.putExtra("Main", "123");
startActivityForResult(intent, 0);
Get value from other activity
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
if (resultCode == RESULT_OK)
{
Log.d("debug", "result=" + data.getStringExtra("second"));
}
super.onActivityResult(requestCode, resultCode, data);
}
Test.activity
Get value：
Intent intent = getIntent();
final String num = intent.getStringExtra("Main");
Then pass value to main activity
Intent intent = new Intent();
intent.putExtra("second", "This is Second Activity's value!");
setResult(RESULT_OK, intent);
finish();
如果传多个值的情况使用 Bundle
Pass value：
Home Activity：
Bundle bundle = new Bundle();
*字符、字符串、布尔、字节数组、浮点数等等，都可以传*/
bundle.putString("Name", "feng88724");
bundle.putBoolean("Ismale", true);
/*把bundle对象assign给Intent*/
intent.putExtras(bundle);
Get value：
Away Activity：
/*获取Intent中的Bundle对象*/
Bundle bundle = this.getIntent().getExtras();
*获取Bundle中的数据，注意类型和key*/
String name = bundle.getString("Name");
boolean ismale = bundle.getBoolean("Ismale");
