Intent intent = new Intent();
ComponentName cmp = new ComponentName("com.sina.weibo","com.sina.weibo.EditActivity");
intent.setAction(Intent.ACTION_MAIN);
intent.addCategory(Intent.CATEGORY_LAUNCHER);
intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
intent.setComponent(cmp);
startActivityForResult(intent, 0);
Sina Weibo (editing interface): com.sina.weibo com.sina.weibo.EditActivity
Tencent Weibo (editing interface): com.tencent.WBlog com.tencent.WBlog.activity.MicroblogInput
WeChat: com.tencent.mm com.tencent.mm.ui.LauncherUI
QQ: com.tencent.mobileqq com.tencent.mobileqq.activity.HomeActivity