Content description for padlock icon depending on state

        android:src="@drawable/ic_lock_24dp"

        android:scaleType="center"

        android:tint="#ffffffff"

        android:contentDescription="@string/accessibility_unlock_button" />

        android:contentDescription="@string/accessibility_unlock_button_not_secured" />

</com.android.systemui.statusbar.phone.KeyguardBottomAreaView>

    <string name="accessibility_camera_button">Camera</string>

    <!-- Content description of the phone button for accessibility (not shown on the screen). [CHAR LIMIT=NONE] -->

    <string name="accessibility_phone_button">Phone</string>

    <!-- Content description of the unlock button for accessibility (not shown on the screen). [CHAR LIMIT=NONE] -->

    <string name="accessibility_unlock_button">Unlock</string>

    <!-- Click action label for accessibility for the unlock button. [CHAR LIMIT=NONE] -->

    <string name="unlock_label">unlock</string>

    <!-- Click action label for accessibility for the phone button. [CHAR LIMIT=NONE] -->

    <!-- Click action label for accessibility for the phone button. [CHAR LIMIT=NONE] -->

    <string name="camera_label">open camera</string>

    <!-- Content description of the lock icon when device is secured (lock closed) and trust not managed (not shown on the screen). [CHAR LIMIT=NONE] -->

    <string name="accessibility_unlock_button_secured">Device secured.</string>

    <!-- Content description of the lock icon when device is not secured (lock open) and trust not managed (not shown on the screen). [CHAR LIMIT=NONE] -->

    <string name="accessibility_unlock_button_not_secured">Device not secured.</string>

    <!-- Content description of the lock icon when device is secured (lock closed) and trust managed (not shown on the screen). [CHAR LIMIT=NONE] -->

    <string name="accessibility_unlock_button_secured_trust_managed">Device secured, trust agent active.</string>

    <!-- Content description of the lock icon when device is not secured (lock open) and trust managed (not shown on the screen). [CHAR LIMIT=NONE] -->

    <string name="accessibility_unlock_button_not_secured_trust_managed">Device not secured, trust agent active.</string>

    <!-- Content description of the lock icon when face unlock is running (face icon) and trust managed (not shown on the screen). [CHAR LIMIT=NONE] -->

    <string name="accessibility_unlock_button_face_unlock_running">Face detection running, trust agent active.</string>

    <!-- Content description of the switch input method button for accessibility (not shown on the screen). [CHAR LIMIT=NONE] -->

    <string name="accessibility_ime_switch_button">Switch input method button.</string>

    <!-- Content description of the compatibility zoom button for accessibility (not shown on the screen). [CHAR LIMIT=NONE] -->

        boolean trustManaged = mUnlockMethodCache.isTrustManaged();

        mTrustDrawable.setTrustManaged(trustManaged);

        // TODO: Update content description depending on state

        updateLockIconClickability();

        updateLockIconContentDescription(mUnlockMethodCache.isFaceUnlockRunning(),

                mUnlockMethodCache.isMethodInsecure(), trustManaged);

    }

    private void updateLockIconContentDescription(boolean faceUnlockRunning, boolean insecure,

            boolean trustManaged) {

        mLockIcon.setContentDescription(getResources().getString(

                faceUnlockRunning ? R.string.accessibility_unlock_button_face_unlock_running

                : insecure && !trustManaged ? R.string.accessibility_unlock_button_not_secured

                : insecure ? R.string.accessibility_unlock_button_not_secured_trust_managed

                : !trustManaged ? R.string.accessibility_unlock_button_secured

                : R.string.accessibility_unlock_button_secured_trust_managed));

    }

    public KeyguardAffordanceView getPhoneView() {

        return mPhoneImageView;