protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		//隐藏标题
		requestWindowFeature(Window.FEATURE_NO_TITLE);
		setContentView(R.layout.activity_splash);

}

3、在清单文件对应的activity中添加android:theme="@android:style/Theme.Black.NoTitleBar"

        <activity
            android:name=".SplashActivity"
            android:label="@string/app_name"
            android:theme="@android:style/Theme.Black.NoTitleBar"
             >
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>

<item name="windowNoTitle">true</item>