详解Android沉浸式实现兼容解决办法

  /**   * 设置沉浸式状态栏颜色   *   * @param colorResId 状态栏颜色   */  protected void setImmersiveStatusBarColor(@ColorRes int colorResId) {    int flags = View.SYSTEM_UI_FLAG_LAYOUT_STABLE | View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN;    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {      int statusBarColor = ApkUtil.getColor(this, colorResId); //①      float lightDegress = (Color.red(statusBarColor) + Color.green(statusBarColor) + Color.blue(statusBarColor)) / 3; //作色彩亮度判断，好针对颜色做相应的状态栏的暗色还是亮色。      if ((lightDegress > 200 || lightDegress == 0) && Build.VERSION.SDK_INT > Build.VERSION_CODES.M)        rootView.setSystemUiVisibility(View.SYSTEM_UI_FLAG_LIGHT_STATUS_BAR);      window.clearFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS);      window.setStatusBarColor(statusBarColor);    } else if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) {      window.addFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS);      rootView.setSystemUiVisibility(flags | View.SYSTEM_UI_FLAG_IMMERSIVE | View.SYSTEM_UI_FLAG_IMMERSIVE_STICKY);    } else if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN) {      rootView.setSystemUiVisibility(flags);    }    if (Build.VERSION.SDK_INT <= Build.VERSION_CODES.KITKAT) { //当API小于等于19，此时为了实现沉浸式状态栏，需要添加一个view来做statusbar背景控件      final boolean isHasStatusBarView = rootView.getTag() != null;      View statusbarView = !isHasStatusBarView ? new View(this) : (View)rootView.getTag();      statusbarView.setBackgroundResource(colorResId);      if(!isHasStatusBarView) {        rootView.setTag(statusBarView);        statusbarView.setLayoutParams(new FrameLayout.LayoutParams(FrameLayout.LayoutParams.MATCH_PARENT, ViewUtil.getStatusBarHeight(this))); //②        rootView.addView(statusbarView);      }    }  }

  /**   * 获取颜色资源   * @param context 上下文对象   * @param colorId 颜色ResId   * @return   */  @SuppressWarnings("deprecation")  public static int getColor(Context context, int colorId) {    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {      return context.getColor(colorId);    }    return context.getResources().getColor(colorId);  }

  /**   * 获取状态栏高度   * @param context 上下文对象   */  @JvmStatic  @SuppressLint("PrivateApi")  fun getStatusBarHeight(context: Context): Int {    val clazz = Class.forName("com.android.internal.R/$dimen")    val obj = clazz?.newInstance()    val field = clazz.getField("status_bar_height")    field?.let {      field.isAccessible = true      val x = Integer.parseInt(field.get(obj).toString())      return context.resources.getDimensionPixelSize(x)    }    return 75  }

 android:fitsSystemWindows="true" android:clipToPadding="false"