我有一个应用程序,登录后会把你带到欢迎界面。我放了一个 Toast 来判断 onResume 何时触发,但是它在 onCreate 之后也会触发。
protected void onResume(){
super.onResume();
Database openHelper = new Database(this);//create new Database to take advantage of the SQLiteOpenHelper class
myDB2 = openHelper.getReadableDatabase(); // or getWritableDatabase();
myDB2=SQLiteDatabase.openDatabase("data/data/com.example.login2/databases/aeglea", null, SQLiteDatabase.OPEN_READONLY);//set myDB to aeglea
cur = fetchOption("SELECT * FROM user_login");//use above to execute SQL query
msg.setText("Username: "+cur.getString(cur.getColumnIndex("username"))
+"\nFull name: "+cur.getString(cur.getColumnIndex("name"))+" "+cur.getString(cur.getColumnIndex("last"))
+"\ne-mail: "+cur.getString(cur.getColumnIndex("email"))
+"\nAeglea id:"+cur.getString(cur.getColumnIndex("uid")));
Toast.makeText(getApplicationContext(), "RESUMED", Toast.LENGTH_SHORT).show();
}
来源于:
//create new intent
Intent log = new Intent(getApplicationContext(), Welcome.class);
// Close all views before launching logged
log.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
startActivity(log);
// Close Login Screen
finish();
我感到困惑。请提供一些经验。
onPause
还是onResume
? - zapl