android应用启动页面

最新推荐文章于 2024-12-01 23:06:05 发布

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最新推荐文章于 2024-12-01 23:06:05 发布

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分类专栏： android 文章标签： android 应用启动

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本文详细介绍了Android应用启动过程中的关键组件及配置文件AndroidManifest.xml的内容。通过分析LoadActivity类和相关XML布局文件，展示了应用从启动到显示主界面的具体步骤。

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AndroidManifast.xml

 1 <?xml version="1.0" encoding="utf-8"?>
 2 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
 3       package="com.manunitder.cn"
 4       android:versionCode="1"
 5       android:versionName="1.0">
 6     <uses-sdk android:minSdkVersion="8" />
 7 
 8     <application android:icon="@drawable/icon" android:label="@string/app_name">
 9         <activity android:name=".LoadActivity"
10                   android:screenOrientation="portrait"
11                   android:theme="@android:style/Theme.NoTitleBar">
12             <intent-filter>
13                 <action android:name="android.intent.action.MAIN" />
14                 <category android:name="android.intent.category.LAUNCHER" />
15             </intent-filter>
16         </activity>
17         <activity android:name=".MainActivity">
18         </activity>
19 
20     </application>
21 </manifest>

load.xml

1 <?xml version="1.0" encoding="utf-8"?>
2 <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
3     android:orientation="vertical"
4     android:gravity="center|center"
5     android:layout_width="fill_parent"
6     android:layout_height="fill_parent"
7     android:background="@drawable/load"
8 >
9 </LinearLayout>

LoadActivity.java

 1 public class LoadActivity extends Activity {
 2     
 3     private static final int LOAD_DISPLAY_TIME = 1500;
 4     
 5     /** Called when the activity is first created. */
 6     @Override
 7     public void onCreate(Bundle savedInstanceState) {
 8         super.onCreate(savedInstanceState);
 9         
10         getWindow().setFormat(PixelFormat.RGBA_8888);
11         getWindow().addFlags(WindowManager.LayoutParams.FLAG_DITHER);
12 
13         setContentView(R.layout.load);
14 
15         new Handler().postDelayed(new Runnable() {
16             public void run() {
17                 /* Create an Intent that will start the Main WordPress Activity. */
18                 Intent mainIntent = new Intent(LoadActivity.this, MainActivity.class);
19                 LoadActivity.this.startActivity(mainIntent);
20                 LoadActivity.this.finish();
21             }
22         }, LOAD_DISPLAY_TIME); //1500 for release
23 
24     }
25 }