[TOC]

概述

设置全屏

使用代码

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@Override
  protected void onCreate(Bundle savedInstanceState) {
      super.onCreate(savedInstanceState);
      hideActionStatusBar();
      hideBottomStatusBar();
      setContentView(R.layout.activity_main);
  }

  /**
   * 隐藏ActionBar和StatusBar
   */
  private void hideActionStatusBar() {
      //set no title bar 需要在setContentView之前调用
      requestWindowFeature(Window.FEATURE_NO_TITLE);
     	//no status bar
      getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN, WindowManager.LayoutParams.FLAG_FULLSCREEN);
      //特殊情况下
      if (getSupportActionBar()!=null) getSupportActionBar().hide();
      if (getActionBar()!=null) getActionBar().hide();
  }

  /**
   * 隐藏 NavigationBar和StatusBar
   */
  protected void hideBottomStatusBar() {
      //隐藏虚拟按键，并且全屏
      if (Build.VERSION.SDK_INT > 11 && Build.VERSION.SDK_INT < 19) { // lower api
          View v = this.getWindow().getDecorView();
          v.setSystemUiVisibility(View.GONE);
      } else if (Build.VERSION.SDK_INT >= 19) {
          //for new api versions.
          View decorView = getWindow().getDecorView();
          int uiOptions = View.SYSTEM_UI_FLAG_HIDE_NAVIGATION
                  | View.SYSTEM_UI_FLAG_IMMERSIVE_STICKY | View.SYSTEM_UI_FLAG_FULLSCREEN;
          decorView.setSystemUiVisibility(uiOptions);
      }
  }

使用Style文件

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<style name="AppTheme.FullScreen" parent="Theme.AppCompat.Light.NoActionBar">
  <item name="windowNoTitle">true</item>
  <item name="android:windowFullscreen">true</item>
</style>

设置沉浸式

使用style样式

为页面指定主题样式

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<activity
   android:name="LoginActivity"
   android:screenOrientation="portrait"
   android:theme="@style/TranslucentTheme" />

设置style.xml

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<style name="TranslucentTheme" parent="Theme.AppCompat.Light.NoActionBar"/>

style.xml（v19）

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<resources xmlns:android="http://schemas.android.com/apk/res/android">
    <style name="TranslucentTheme" parent="Theme.AppCompat.Light.NoActionBar">
        <item name="colorPrimary">@color/colorPrimary</item>
        <item name="colorPrimaryDark">@color/colorPrimaryDark</item>
        <item name="colorAccent">@color/colorAccent</item>
				
        <item name="android:windowTranslucentStatus">true</item>
        <item name="android:windowTranslucentNavigation">true</item>
    </style>
</resources>

style.xml（v21）

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<resources xmlns:android="http://schemas.android.com/apk/res/android">
    <style name="TranslucentTheme" parent="Theme.AppCompat.Light.NoActionBar">
        <item name="colorPrimary">@color/colorPrimary</item>
        <item name="colorPrimaryDark">@color/colorPrimaryDark</item>
        <item name="colorAccent">@color/colorAccent</item>

        <item name="android:windowTranslucentStatus">true</item>
        <item name="android:windowTranslucentNavigation">true</item>
        <!--Android 5.x开始需要把颜色设置透明，否则导航栏会呈现系统默认的浅灰色-->
        <item name="android:statusBarColor">@android:color/transparent</item>
    </style>
</resources>

使用代码

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public static void transparentStatusBar(@NonNull final Window window) {
      if (Build.VERSION.SDK_INT < Build.VERSION_CODES.KITKAT) return;
      if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
          window.clearFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS);
          window.addFlags(WindowManager.LayoutParams.FLAG_DRAWS_SYSTEM_BAR_BACKGROUNDS);
          int option = View.SYSTEM_UI_FLAG_LAYOUT_STABLE | View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN;
          int vis = window.getDecorView().getSystemUiVisibility();
          window.getDecorView().setSystemUiVisibility(option | vis);
          window.setStatusBarColor(Color.TRANSPARENT);
      } else {
          window.addFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS);
      }
  }

fitsSystemWindows
android:fitsSystemWindows=“true” 在xml中设置这个属性，可以在沉浸式中预留statusBar的高度。

不同的Fragment使用不同的status颜色
可以使用沉浸式，在Fragment的xml中顶部预留30dp（或者动态设置status的高度）用于填充高度