Adding a sound when you take a screenshot. (Bug 5617734)

import android.graphics.Matrix;

import android.graphics.PixelFormat;

import android.graphics.PointF;

import android.hardware.CameraSound;

import android.net.Uri;

import android.os.AsyncTask;

import android.os.Environment;

import android.view.WindowManager;

import android.view.animation.Interpolator;

import android.widget.ImageView;

import com.android.systemui.R;

import java.io.File;

    private float mBgPadding;

    private float mBgPaddingScale;

    private CameraSound mCameraSound;

    /**

     * @param context everything needs a context :(

        // Scale has to account for both sides of the bg

        mBgPadding = (float) r.getDimensionPixelSize(R.dimen.global_screenshot_bg_padding);

        mBgPaddingScale = mBgPadding /  mDisplayMetrics.widthPixels;

        // Setup the Camera shutter sound

        mCameraSound = new CameraSound();

    }

    /**

        mScreenshotLayout.post(new Runnable() {

            @Override

            public void run() {

                // Play the shutter sound to notify that we've taken a screenshot

                mCameraSound.playSound(CameraSound.SHUTTER_CLICK);

                mScreenshotView.setLayerType(View.LAYER_TYPE_HARDWARE, null);

                mScreenshotView.buildLayer();

                mScreenshotAnimation.start();