直接上代码
Intent intent = new Intent();
intent.setClass(MainActivity.this, Test1Activity.class);
intent.putExtra("str", "come from first activity");
startActivity(intent);
在另一个Activity中接受参数
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
Intent intent = getIntent();
Bundle bundle = intent.getExtras();
String str = bundle.getString("str");
}