检测是否在Android辅助功能设置中启用了“高对比度" [英] Detect if 'High contrast' is enabled in Android accessibility settings
本文介绍了检测是否在Android辅助功能设置中启用了“高对比度"的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
如何检测辅助功能"设置中是否启用了高对比度"设置(适用于Android 5.0 +)?
How can I detect if 'High Contrast' setting (available on Android 5.0+) is enabled in Accessibility settings?
推荐答案
In the AccessibilityManager
class (see source here) you have a public method called isHighTextContrastEnabled
that you can use to get your information:
/**
* Returns if the high text contrast in the system is enabled.
* <p>
* <strong>Note:</strong> You need to query this only if you application is
* doing its own rendering and does not rely on the platform rendering pipeline.
* </p>
*
* @return True if high text contrast is enabled, false otherwise.
*
* @hide
*/
public boolean isHighTextContrastEnabled() {
synchronized (mLock) {
IAccessibilityManager service = getServiceLocked();
if (service == null) {
return false;
}
return mIsHighTextContrastEnabled;
}
}
因此,在您的代码中,您可以这样访问此方法(如果您使用的是Activity
):
So in your code, you can access this method by doing so (if you're in an Activity
):
AccessibilityManager am = (AccessibilityManager) this.getSystemService(Context.ACCESSIBILITY_SERVICE);
boolean isHighTextContrastEnabled = am.isHighTextContrastEnabled();
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