Activity與Activity、Service聯繫

• 建議用SharePreferences或檔案即可

• Activity 呼叫 Activity 可以用：

Intent i = new Intent(Intent.ACTION_SEND);

i.setType("message/rfc822");

i.putExtra(Intent.EXTRA_EMAIL , Email);

i.putExtra(Intent.EXTRA_SUBJECT, "Subject");

i.putExtra(Intent.EXTRA_TEXT , "Message......");

Context.startActivityForResult(Intent.createChooser(i, "Choose mail client :"),1);