make android application performance better
<p>my android application performance is low, it takes a long startup time. i have 5 buttons, one imageview, 3 textView, 2 editText and one listView initialized in onCreate() method. Is large number of ui object the reason for slow startup?? Is there any fault in manifest.xml??</p>

<pre><code>&lt;?xml version="1.0" encoding="utf-8"?&gt;
&lt;manifest xmlns:android="http://schemas.android.com/apk/res/android"
  package="com.ars.application"
  android:versionCode="1"
  android:versionName="1.0"&gt;
&lt;application android:icon="@drawable/lightvasicon" android:label="@string/app_name" android:debuggable="true"&gt;
    &lt;activity android:name=".LightVas"
              android:label="@string/app_name"
              android:screenOrientation="portrait" 
              android:configChanges="keyboardHidden|orientation" &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;
&lt;/application&gt;
&lt;uses-permission
android:name="android.permission.ACCESS_COARSE_LOCATION"&gt;&lt;/uses-permission&gt;
&lt;uses-permission
android:name="android.permission.ACCESS_FINE_LOCATION"&gt;&lt;/uses-permission&gt;
&lt;uses-permission
android:name="android.permission.ACCESS_LOCATION_EXTRA_COMMANDS"&gt;&lt;/uses-permission&gt;
&lt;uses-permission
android:name="android.permission.ACCESS_MOCK_LOCATION"&gt;&lt;/uses-permission&gt;
&lt;uses-permission
android:name="android.permission.CONTROL_LOCATION_UPDATES"&gt;&lt;/uses-permission&gt;
&lt;uses-permission android:name="android.permission.INTERNET"&gt;&lt;/uses-permission&gt;
&lt;uses-sdk android:minSdkVersion="7" /&gt;
&lt;/manifest&gt; 
</code></pre>
