判断从home键长按进入

int flag = mIntent.getFlags();
        if((flag & Intent.FLAG_ACTIVITY_LAUNCHED_FROM_HISTORY ) != 0) {
           startActivity(new Intent(this,SplashActivity.class));
           finish();
        }

PS:

• HOME键的执行顺序：onPause->onStop->onRestart->onStart->onResume
• BACK键的顺序：  onPause->onStop->onDestroy->onCreate->onStart->onResume
• onPause不要做太耗时的工作