1. 通過intent來傳遞:
activity1中設定
:
A.傳字元等:
Java代碼
String text = "hello";
Intent intent1 = new Intent(ActivityMain.this, Activity2.class);
intent1.putExtra("activity1", text);
startActivity(intent1);
B. 傳對象,對象要執行個體化,繼承Serializable
Java代碼
Bundle mbundle=new Bundle();
mbundle.putSerializable("user",userList.get(position));
Intent in =new Intent (getApplicationContext(), activity2.class);
in.putExtras(mbundle);
startActivity(in);
activity2中接收:
A:接收
Java代碼
Bundle extras = getIntent().getExtras();
if (extras != null) {
textview.setText(extras.getString("activity1"));
}
B.接收
Java代碼
Bundle bundel = getIntent().getExtras();
user= (User) bundel.get("user");
2. SharedPreferences
在activity1中設定的如下:
Java代碼
SharedPreferences sp = getSharedPreferences("textinfo",0);
Editor editor = sp.edit();
String text = "hello";
editor.putString("text", text);
editor.commit();
Intent i = new Intent(getApplicationContext(),activity2.class);
startActivity(i);
跳轉到Message的activity,擷取內容如下
Java代碼
SharedPreferences share = getSharedPreferences("textinfo",0);
String text = share.getString("text", null);
msgtextview.setText(text);