第三方APK如何隐藏虚拟按键

全面屏时代，android设备已经很少有键盘的存在了，为了便捷，虚拟按键应运而生，当然iphone的手势控制也有一部分厂商移植到了android系统中。
本文主要是关于底部的三个虚拟按键RECENT、HOME、BACK对于第三方APK如何隐藏。
View.java的API显示，三个虚拟按键都是hide，即只有系统APK可以调用：

   /**
     * @hide
     *
     * NOTE: This flag may only be used in subtreeSystemUiVisibility. It is masked
     * out of the public fields to keep the undefined bits out of the developer's way.
     *
     * Flag to hide only the recent apps button. Don't use this
     * unless you're a special part of the system UI (i.e., setup wizard, keyguard).
     */
    public static final int STATUS_BAR_DISABLE_RECENT = 0x01000000;
    /**
     * @hide
     *
     * NOTE: This flag may only be used in subtreeSystemUiVisibility. It is masked
     * out of the public fields to keep the undefined bits out of the developer's way.
     *
     * Flag to hide only the home button.  Don't use this
     * unless you're a special part of the system UI (i.e., setup wizard, keyguard).
     */
    public static final int STATUS_BAR_DISABLE_HOME = 0x00200000;

    /**
     * @hide
     *
     * NOTE: This flag may only be used in subtreeSystemUiVisibility. It is masked
     * out of the public fields to keep the undefined bits out of the developer's way.
     *
     * Flag to hide only the back button. Don't use this
     * unless you're a special part of the system UI (i.e., setup wizard, keyguard).
     */
    public static final int STATUS_BAR_DISABLE_BACK = 0x00400000;
    

那第三方APK如何控制呢？

  // 定义与API中相同的数值
  private static final int STATUS_BAR_DISABLE_RECENT = 0x01000000;
  private static final int STATUS_BAR_DISABLE_HOME = 0x00200000;
  private static final int STATUS_BAR_DISABLE_BACK = 0x00400000;

@Override
protected void onCreate(Bundle icicle) {
	super.onCreate(icicle);
	...
	int flags = View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN | View.SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION;
	KeyguardManager mKeyguardManager = (KeyguardManager) getSystemService(Context.KEYGUARD_SERVICE);
	flags |= STATUS_BAR_DISABLE_RECENT;
	Log.i(TAG, "disable recent!");

	getWindow()
        .getDecorView()
        .setSystemUiVisibility(flags);
	...
}

示例显示了如何隐藏RECENT虚拟按键。

本文地址：https://blog.csdn.net/qq_28534581/article/details/107959263