隐藏标题栏和状态栏

XML实现:

 

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
      package="de.vogella.android.temperature"
      android:versionCode="1"
      android:versionName="1.0">
    <application android:icon="@drawable/icon" android:label="@string/app_name">
        <activity android:name=".Convert"
                  android:label="@string/app_name"
                   android:theme="@android:style/Theme.NoTitleBar.Fullscreen" >
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />
                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
 
    </application>
    <uses-sdk android:minSdkVersion="9" />
 
</manifest>

java代码实现:

 

@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    // hide titlebar of application
    // must be before setting the layout
    requestWindowFeature(Window.FEATURE_NO_TITLE);
    // hide statusbar of Android
    // could also be done later
    getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,
            WindowManager.LayoutParams.FLAG_FULLSCREEN);
    setContentView(R.layout.main);
    text = (EditText) findViewById(R.id.EditText01);
 
}

 

导入的android项目没有gen目录以及R.java文件

这样的问题一般来说是没有导入android包的问题~项目右键打开build path,然后吧android环境需要的包导入。另外需要注意,左侧android中选择默认的android版本~否则环境导入包会有问题