Delphi实现禁止app截屏

        <activity
            android:name="com.embarcadero.firemonkey.FMXNativeActivity"
            android:exported="true"

            android:excludeFromRecents="true"
            android:noHistory="true"
            android:windowDisablePreview="true"

            android:label="%activityLabel%"
            android:configChanges="orientation|keyboard|keyboardHidden|screenSize"
            android:launchMode="singleTask">
            <!-- Tell NativeActivity the name of our .so -->
            <meta-data android:name="android.app.lib_name" android:value="%libNameValue%" />

            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

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

procedure TForm16.FormCreate(Sender: TObject);
begin
  SharedActivity.getWindow.setFlags(TJWindowManager_LayoutParams.JavaClass.FLAG_SECURE, TJWindowManager_LayoutParams.JavaClass.FLAG_SECURE);

end;