Merge "Get color directly and remove redundant clearMessage()" into qt-dev

import android.app.admin.DevicePolicyManager;

import android.content.Context;

import android.content.res.TypedArray;

import android.graphics.PixelFormat;

import android.graphics.PorterDuff;

import android.graphics.drawable.Drawable;

        mDevicePolicyManager = mContext.getSystemService(DevicePolicyManager.class);

        mAnimationTranslationOffset = getResources()

                .getDimension(R.dimen.biometric_dialog_animation_translation_offset);

        TypedArray array = getContext().obtainStyledAttributes(

                new int[]{R.color.biometric_dialog_error, R.color.biometric_dialog_gray});

        mErrorColor = array.getColor(0, 0);

        mTextColor = array.getColor(1, 0);

        array.recycle();

        mErrorColor = getResources().getColor(R.color.biometric_dialog_error);

        mTextColor = getResources().getColor(R.color.biometric_dialog_gray);

        DisplayMetrics metrics = new DisplayMetrics();

        mWindowManager.getDefaultDisplay().getMetrics(metrics);

        mTryAgainButton.setOnClickListener((View v) -> {

            updateState(STATE_AUTHENTICATING);

            showTryAgainButton(false /* show */);

            handleClearMessage();

            mCallback.onTryAgainPressed();

        });