title: sensorLandscape activity display very slowly when first run after first installer
body: <pre><code>&lt;activity
      android:name=".WelcomeActivity"
      android:configChanges="orientation|keyboardHidden|screenSize|screenLayout"
      android:launchMode="singleTop"
      android:screenOrientation="sensorLandscape"
      android:theme="@style/WelcomeStyle"
      android:windowSoftInputMode="adjustPan"&gt;
          &lt;intent-filter&gt;
              &lt;action android:name="android.intent.action.MAIN" /&gt;
              &lt;category android:name="android.intent.category.LAUNCHER" /&gt;
              &lt;/intent-filter&gt;
      &lt;/activity&gt;
  
  
  
  import android.os.Bundle;
  import android.support.v4.app.FragmentActivity;
  public class WelcomeActivity extends FragmentActivity {
  
      private static final String TAG = "WelcomeActivity";
  
      @Override
      protected void onCreate(Bundle savedInstanceState) {
          super.onCreate(savedInstanceState);
  
          setContentView(R.layout.activity_welcome);
      }
  
  }
  
  &lt;LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
      xmlns:tools="http://schemas.android.com/tools"
      android:id="@+id/rootlayout"
      android:layout_width="fill_parent"
      android:layout_height="fill_parent"
      android:background="@drawable/welcom_background"&gt;
  
      &lt;FrameLayout
          android:id="@+id/bootImg_layout"
          android:layout_width="match_parent"
          android:layout_height="match_parent"
          android:layoutAnimation="@anim/ads_show_anim"
          android:visibility="gone"&gt;
  
          &lt;ImageView
              android:id="@+id/bootImage"
              android:layout_width="match_parent"
              android:layout_height="match_parent"
              android:adjustViewBounds="true"
              android:scaleType="centerCrop" /&gt;
  
          &lt;TextView
              android:id="@+id/adsCountDownTime"
              android:layout_width="40dp"
              android:layout_height="30dp"
              android:layout_gravity="right"
              android:layout_marginRight="10dp"
              android:layout_marginTop="10dp"
  
              android:gravity="center"
              android:text="@string/ads_accountime"
              android:textColor="@color/color_white"
              android:textSize="25sp" /&gt;
  
          &lt;TextView
              android:id="@+id/channelApkDwnButton"
              android:layout_width="wrap_content"
              android:layout_height="wrap_content"
              android:layout_gravity="bottom|center_horizontal"
              android:layout_marginBottom="50dp"
              android:gravity="center"
              android:visibility="gone" /&gt;
      &lt;/FrameLayout&gt;
  &lt;/LinearLayout&gt;
  </code></pre>
  
  <p>When my app's first activity set orientation with 'sensorLandscape', my app first running is very slow after installer. Who can tell me why and how fix it? 
  Add one condition: my app's method more than 65k. When I set android:screenOrientation="portrait", the welcome activity's view will be display immediately after first installer.</p>