android去除掉界面头标签与状态栏(包含继承AppCompatActivity)的V7包下

方式一：编码方式v7包下去掉标题栏 ActionBar

public class SplashAcitivity extends AppCompatActivity {

@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
supportRequestWindowFeature(Window.FEATURE_NO_TITLE);
setContentView(R.layout.activity_splash);

}
}

v7包下去掉标题栏,以及通知栏(状态栏),全屏显示

public class SplashAcitivity extends AppCompatActivity {

@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
requestWindowFeature(Window.FEATURE_NO_TITLE);//remove title bar  即隐藏标题栏
getSupportActionBar().hide();// 隐藏ActionBar
getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,
WindowManager.LayoutParams.FLAG_FULLSCREEN);//remove notification bar  即全屏
setContentView(R.layout.activity_splash);
}
}

v4包下去掉标题栏 ActionBar

public class SplashAcitivity extends Activity {

@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
RequestWindowFeature(Window.FEATURE_NO_TITLE);
setContentView(R.layout.activity_splash);
}
}

方式二：修改

AndroidManifest.xml

:V7包下去掉标题栏 ActionBar

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.itheima.zhzx">

<application
android:allowBackup="true"
android:icon="@mipmap/ic_launcher"
android:label="@string/app_name"
android:supportsRtl="true"
android:theme="@style/Theme.AppCompat">
<activity android:name=".SplashAcitivity" android:theme="@style/Theme.AppCompat.Light.NoActionBar">
<intent-filter>
<action android:name="android.intent.action.MAIN"/>

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

</manifest>

v7包下去掉标题栏,以及通知栏(状态栏),全屏显示(有异常)

<activity android:name=".MainActivity"
android:label="@string/app_name"
android:theme="@android:style/Theme.Black.NoTitleBar.Fullscreen">

但是这种方式异动是程序总是崩溃原因，升级后theme是由appcompat_v7管理所以这里theme应该采用android:theme=@style/Theme.AppCompat.Light.NoActionBar”，这个只能隐藏ActionBar如果想连通知栏也隐藏，可在styles.xml中定义如下样式，然后再在

AndroidManifest.xml中的Application或者Activity上使用

<style name="Theme.AppCompat.Light.NoActionBar.FullScreen" parent="@style/Theme.AppCompat.Light">
<item name="android:windowNoTitle">true</item>//无标题
<item name="android:windowActionBar">false</item>//无ActionBar
<item name="android:windowFullscreen">true</item>//全屏即无通知栏
<item name="android:windowContentOverlay">@null</item>//是否有遮盖
</style>