圆形imageview以及Blur

首先效果图

• 圆形图片代码部分:

  /** * 描述：圆形头像 * 作者：Marc on 2016/8/4 13:20 * 邮箱：[e-mail] */public class RoundImageView extends ImageView {    private static final ScaleType SCALE_TYPE = ScaleType.CENTER_CROP;    private static final Bitmap.Config BITMAP_CONFIG = Bitmap.Config.ARGB_8888;    private static final int COLORDRAWABLE_DIMENSION = 2;    private static final int DEFAULT_BORDER_WIDTH = 0;    private static final int DEFAULT_BORDER_COLOR = Color.BLACK;    private static final boolean DEFAULT_BORDER_OVERLAY = false;    private final RectF mDrawableRect = new RectF();    private final RectF mBorderRect = new RectF();    private final Matrix mShaderMatrix = new Matrix();    private final Paint mBitmapPaint = new Paint();    private final Paint mBorderPaint = new Paint();    private int mBorderColor = DEFAULT_BORDER_COLOR;    private int mBorderWidth = DEFAULT_BORDER_WIDTH;    private Bitmap mBitmap;    private BitmapShader mBitmapShader;    private int mBitmapWidth;    private int mBitmapHeight;    private float mDrawableRadius;    private float mBorderRadius;    private ColorFilter mColorFilter;    private boolean mReady;    private boolean mSetupPending;    private boolean mBorderOverlay;    public RoundImageView(Context context) {        super(context);        init();    }    public RoundImageView(Context context, AttributeSet attrs) {        this(context, attrs, 0);    }    public RoundImageView(Context context, AttributeSet attrs, int defStyle) {        super(context, attrs, defStyle);        TypedArray a = context.obtainStyledAttributes(attrs, R.styleable.roundedimageview, defStyle, 0);        mBorderWidth = a.getDimensionPixelSize(R.styleable.roundedimageview_border_width, DEFAULT_BORDER_WIDTH);        mBorderColor = a.getColor(R.styleable.roundedimageview_border_color, DEFAULT_BORDER_COLOR);        mBorderOverlay = a.getBoolean(R.styleable.roundedimageview_border_overlay, DEFAULT_BORDER_OVERLAY);        a.recycle();        init();    }    private void init() {        super.setScaleType(SCALE_TYPE);        mReady = true;        if (mSetupPending) {            setup();            mSetupPending = false;        }    }    @Override    public ScaleType getScaleType() {        return SCALE_TYPE;    }    @Override    public void setScaleType(ScaleType scaleType) {        if (scaleType != SCALE_TYPE) {            throw new IllegalArgumentException(String.format("ScaleType %s not supported.", scaleType));        }    }    @Override    public void setAdjustViewBounds(boolean adjustViewBounds) {        if (adjustViewBounds) {            throw new IllegalArgumentException("adjustViewBounds not supported.");        }    }    @Override    protected void onDraw(Canvas canvas) {        if (getDrawable() == null) {            return;        }        canvas.drawCircle(getWidth() / 2, getHeight() / 2, mDrawableRadius, mBitmapPaint);        if (mBorderWidth != 0) {            canvas.drawCircle(getWidth() / 2, getHeight() / 2, mBorderRadius, mBorderPaint);        }    }    @Override    protected void onSizeChanged(int w, int h, int oldw, int oldh) {        super.onSizeChanged(w, h, oldw, oldh);        setup();    }    public int getBorderColor() {        return mBorderColor;    }    public void setBorderColor(int borderColor) {        if (borderColor == mBorderColor) {            return;        }        mBorderColor = borderColor;        mBorderPaint.setColor(mBorderColor);        invalidate();    }    public void setBorderColorResource(@ColorRes int borderColorRes) {        setBorderColor(getContext().getResources().getColor(borderColorRes));    }    public int getBorderWidth() {        return mBorderWidth;    }    public void setBorderWidth(int borderWidth) {        if (borderWidth == mBorderWidth) {            return;        }        mBorderWidth = borderWidth;        setup();    }    public boolean isBorderOverlay() {        return mBorderOverlay;    }    public void setBorderOverlay(boolean borderOverlay) {        if (borderOverlay == mBorderOverlay) {            return;        }        mBorderOverlay = borderOverlay;        setup();    }    @Override    public void setImageBitmap(Bitmap bm) {        super.setImageBitmap(bm);        mBitmap = bm;        setup();    }    @Override    public void setImageDrawable(Drawable drawable) {        super.setImageDrawable(drawable);        mBitmap = getBitmapFromDrawable(drawable);        setup();    }    @Override    public void setImageResource(@DrawableRes int resId) {        super.setImageResource(resId);        mBitmap = getBitmapFromDrawable(getDrawable());        setup();    }    @Override    public void setImageURI(Uri uri) {        super.setImageURI(uri);        mBitmap = getBitmapFromDrawable(getDrawable());        setup();    }    @Override    public void setColorFilter(ColorFilter cf) {        if (cf == mColorFilter) {            return;        }        mColorFilter = cf;        mBitmapPaint.setColorFilter(mColorFilter);        invalidate();    }    private Bitmap getBitmapFromDrawable(Drawable drawable) {        if (drawable == null) {            return null;        }        if (drawable instanceof BitmapDrawable) {            return ((BitmapDrawable) drawable).getBitmap();        }        try {            Bitmap bitmap;            if (drawable instanceof ColorDrawable) {                bitmap = Bitmap.createBitmap(COLORDRAWABLE_DIMENSION, COLORDRAWABLE_DIMENSION, BITMAP_CONFIG);            } else {                bitmap = Bitmap.createBitmap(drawable.getIntrinsicWidth(), drawable.getIntrinsicHeight(), BITMAP_CONFIG);            }            Canvas canvas = new Canvas(bitmap);            drawable.setBounds(0, 0, canvas.getWidth(), canvas.getHeight());            drawable.draw(canvas);            return bitmap;        } catch (OutOfMemoryError e) {            return null;        }    }    private void setup() {        if (!mReady) {            mSetupPending = true;            return;        }        if (mBitmap == null) {            return;        }        mBitmapShader = new BitmapShader(mBitmap, Shader.TileMode.CLAMP, Shader.TileMode.CLAMP);        mBitmapPaint.setAntiAlias(true);        mBitmapPaint.setShader(mBitmapShader);        mBorderPaint.setStyle(Paint.Style.STROKE);        mBorderPaint.setAntiAlias(true);        mBorderPaint.setColor(mBorderColor);        mBorderPaint.setStrokeWidth(mBorderWidth);        mBitmapHeight = mBitmap.getHeight();        mBitmapWidth = mBitmap.getWidth();        mBorderRect.set(0, 0, getWidth(), getHeight());        mBorderRadius = Math.min((mBorderRect.height() - mBorderWidth) / 2, (mBorderRect.width() - mBorderWidth) / 2);        mDrawableRect.set(mBorderRect);        if (!mBorderOverlay) {            mDrawableRect.inset(mBorderWidth, mBorderWidth);        }        mDrawableRadius = Math.min(mDrawableRect.height() / 2, mDrawableRect.width() / 2);        updateShaderMatrix();        invalidate();    }    private void updateShaderMatrix() {        float scale;        float dx = 0;        float dy = 0;        mShaderMatrix.set(null);        if (mBitmapWidth * mDrawableRect.height() > mDrawableRect.width() * mBitmapHeight) {            scale = mDrawableRect.height() / (float) mBitmapHeight;            dx = (mDrawableRect.width() - mBitmapWidth * scale) * 0.5f;        } else {            scale = mDrawableRect.width() / (float) mBitmapWidth;            dy = (mDrawableRect.height() - mBitmapHeight * scale) * 0.5f;        }        mShaderMatrix.setScale(scale, scale);        mShaderMatrix.postTranslate((int) (dx + 0.5f) + mDrawableRect.left, (int) (dy + 0.5f) + mDrawableRect.top);        mBitmapShader.setLocalMatrix(mShaderMatrix);    }}

• attrs 部分

        <!--圆形头像--><declare-styleable name="roundedimageview">    <!-- 圆形图片 -->        <attr name="border_width" format="dimension" />        <attr name="border_color" format="color" />        <attr name="border_overlay" format="boolean" /></declare-styleable>     <!--虚化背景--><declare-styleable name="BlurredView">    <attr name="src" format="reference" />    <attr name="move" format="boolean" />    <attr name="disableBlurred" format="boolean" /></declare-styleable>

• Blur毛玻璃效果

这个从网上看到的，摘过来

• BlurBitmap

                      /** * 描述： * 作者：Marc on 2016/8/4 09:14 * 邮箱：[e-mail] */public class BlurBitmap {    /**     * 图片缩放比例     */    private static final float BITMAP_SCALE = 0.4f;    /**     * 最大模糊度(在0.0到25.0之间)     */    private static final float BLUR_RADIUS = 25f;    @TargetApi(Build.VERSION_CODES.JELLY_BEAN_MR1)    public static Bitmap blur(Context context, Bitmap image) {        // 计算图片缩小后的长宽        int width = Math.round(image.getWidth() * BITMAP_SCALE);        int height = Math.round(image.getHeight() * BITMAP_SCALE);        // 将缩小后的图片做为预渲染的图片。        Bitmap inputBitmap = Bitmap.createScaledBitmap(image, width, height, false);        // 创建一张渲染后的输出图片。        Bitmap outputBitmap = Bitmap.createBitmap(inputBitmap);        // 创建RenderScript内核对象        RenderScript rs = RenderScript.create(context);        // 创建一个模糊效果的RenderScript的工具对象        ScriptIntrinsicBlur blurScript = ScriptIntrinsicBlur.create(rs, Element.U8_4(rs));        // 由于RenderScript并没有使用VM来分配内存,所以需要使用Allocation类来创建和分配内存空间。        // 创建Allocation对象的时候其实内存是空的,需要使用copyTo()将数据填充进去。        Allocation tmpIn = Allocation.createFromBitmap(rs, inputBitmap);        Allocation tmpOut = Allocation.createFromBitmap(rs, outputBitmap);        // 设置渲染的模糊程度, 25f是最大模糊度        blurScript.setRadius(BLUR_RADIUS);        // 设置blurScript对象的输入内存        blurScript.setInput(tmpIn);        // 将输出数据保存到输出内存中        blurScript.forEach(tmpOut);        // 将数据填充到Allocation中        tmpOut.copyTo(outputBitmap);        return outputBitmap;    }}

• BlurredUtil

          /** * 描述： * 作者：Marc on 2016/8/4 10:16 * 邮箱：[e-mail] */public class BlurredUtil {    /**     * 将Drawable对象转化为Bitmap对象     *     * @param drawable Drawable对象     * @return 对应的Bitmap对象     */    static Bitmap drawableToBitmap(Drawable drawable) {        Bitmap bitmap;        if (drawable instanceof BitmapDrawable) {            BitmapDrawable bitmapDrawable = (BitmapDrawable) drawable;            if (bitmapDrawable.getBitmap() != null) {                return bitmapDrawable.getBitmap();            }        }        if (drawable.getIntrinsicWidth() <= 0 || drawable.getIntrinsicHeight() <= 0) {            bitmap = Bitmap.createBitmap(1, 1,                    Bitmap.Config.ARGB_8888); // Single color bitmap will be created of 1x1 pixel        } else {            bitmap = Bitmap.createBitmap(drawable.getIntrinsicWidth(), drawable.getIntrinsicHeight(),                    Bitmap.Config.ARGB_8888);        }        Canvas canvas = new Canvas(bitmap);        drawable.setBounds(0, 0, canvas.getWidth(), canvas.getHeight());        drawable.draw(canvas);        return bitmap;    }}

• BlurredView

              /**     * 描述：     * 作者：Marc on 2016/8/4 10:16     * 邮箱：[e-mail]     */    public class BlurredView extends RelativeLayout{        /**         * 模糊最大化值         */        private static final int ALPHA_MAX_VALUE = 255;        /**         * Context         */        private Context mContext;        /**         * 模糊后的ImageView         */        private ImageView mBlurredImg;        /**         * 原图ImageView         */        private ImageView mOriginImg;        /**         * 原图Bitmap         */        private Bitmap mOriginBitmap;        /**         * 模糊后的Bitmap         */        private Bitmap mBlurredBitmap;        /**         * 是否禁用模糊效果         */        private boolean isDisableBlurred;        /**         * 是否移动背景图片         */        private boolean isMove;        public BlurredView(Context context) {            super(context);            init(context);        }        public BlurredView(Context context, AttributeSet attrs) {            super(context, attrs);            init(context);            initAttr(context, attrs);        }        public BlurredView(Context context, AttributeSet attrs, int defStyleAttr) {            super(context, attrs, defStyleAttr);            init(context);            initAttr(context, attrs);        }        private void init(Context context) {            mContext = context;            LayoutInflater.from(context).inflate(R.layout.blurredview, this);            mOriginImg = (ImageView) findViewById(R.id.blurredview_origin_img);            mBlurredImg = (ImageView) findViewById(R.id.blurredview_blurred_img);        }        private void initAttr(Context context, AttributeSet attrs) {            TypedArray typedArray = context.obtainStyledAttributes(attrs, R.styleable.BlurredView);            Drawable drawable = typedArray.getDrawable(R.styleable.BlurredView_src);            isMove = typedArray.getBoolean(R.styleable.BlurredView_move, false);            isDisableBlurred = typedArray.getBoolean(R.styleable.BlurredView_disableBlurred, false);            typedArray.recycle();            // blur image            if (null != drawable) {                mOriginBitmap = BlurredUtil.drawableToBitmap(drawable);                mBlurredBitmap = BlurBitmap.blur(context, mOriginBitmap);            }            // setVisibility            if (!isDisableBlurred) {                mBlurredImg.setVisibility(VISIBLE);            }            // setMove            if (null != drawable) {                setMove(context, isMove);            }        }        /**         * 设置背景图片移动效果         * @param context   上下文对象         * @param isMove    是否移动         */        private void setMove(Context context, boolean isMove) {            if (isMove) {                WindowManager wm = (WindowManager) context.getSystemService(Context.WINDOW_SERVICE);                Display display = wm.getDefaultDisplay();                Point point = new Point();                display.getSize(point);                int height = point.y;                setBlurredHeight(height, mOriginImg);                setBlurredHeight(height, mBlurredImg);            }        }        /**         * 改变图片的高度         *         * @param height        图片的高度         * @param imageView     imageview对象         */        private void setBlurredHeight(int height, ImageView imageView) {            ViewGroup.LayoutParams params = imageView.getLayoutParams();            params.width = ViewGroup.LayoutParams.MATCH_PARENT;            params.height = height + 100;            imageView.requestLayout();        }        @Override        protected void onFinishInflate() {            super.onFinishInflate();            setImageView();        }        /**         * 填充ImageView.         */        private void setImageView() {            mBlurredImg.setImageBitmap(mBlurredBitmap);            mOriginImg.setImageBitmap(mOriginBitmap);        }        /**         * 以代码的方式添加待模糊的图片         *         * @param blurredBitmap 待模糊的图片         */        public void setBlurredImg(Bitmap blurredBitmap) {            if (null != blurredBitmap) {                mOriginBitmap = blurredBitmap;                mBlurredBitmap = BlurBitmap.blur(mContext, blurredBitmap);                setImageView();                setMove(mContext, isMove);            }        }        /**         * 以代码的方式添加待模糊的图片         *         * @param blurDrawable 待模糊的图片         */        public void setBlurredImg(Drawable blurDrawable) {            if (null != blurDrawable) {                mOriginBitmap = BlurredUtil.drawableToBitmap(blurDrawable);                mBlurredBitmap = BlurBitmap.blur(mContext, mOriginBitmap);                setImageView();                setMove(mContext, isMove);            }        }        /**         * 设置模糊程度         *         * @param level 模糊程度, 数值在 0~100 之间.         */        public void setBlurredLevel(int level) {            if (level < 0 || level > 100) {                throw new IllegalStateException("No validate level, the value must be 0~100");            }            if (isDisableBlurred) {                return;            }            mOriginImg.setAlpha((int) (ALPHA_MAX_VALUE - level * 2.55));        }        /**         * 设置图片上移的距离         *         * @param hight 向上移动的距离         */        public void setBlurredTop(int hight) {            mOriginImg.setTop(-hight);            mBlurredImg.setTop(-hight);        }        /**         * 显示模糊图片         */        public void showBlurredView() {            mBlurredImg.setVisibility(VISIBLE);        }        /**         * 禁用模糊效果         */        public void disableBlurredView() {            isDisableBlurred = true;            mOriginImg.setAlpha(ALPHA_MAX_VALUE);            mBlurredImg.setVisibility(INVISIBLE);        }        /**         * 启用模糊效果         */        public void enableBlurredView() {            isDisableBlurred = false;            mBlurredImg.setVisibility(VISIBLE);        }    }

使用

• BlueActivity

          /** * 描述： * 作者：Marc on 2016/8/4 10:29 * 邮箱：[e-mail] */public class BlueActivity extends AppCompatActivity {    Toolbar toolbar;    TextView toobarTv;    BlurWeatherFragment fragment1;    BlurredViewBasicFragment fragment2;    @Override    protected void onCreate(@Nullable Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_blue_main);        ButterKnife.bind(this);        toolbar = (Toolbar) findViewById(R.id.toolbar);        toobarTv = (TextView) findViewById(R.id.toolbar_tv);        toobarTv.setText("Blur");        fragment1 = new BlurWeatherFragment();        fragment2 = new BlurredViewBasicFragment();        setDefaultFragment();    }    private void setDefaultFragment() {        FragmentManager manager = getSupportFragmentManager();        FragmentTransaction fragmentTransaction = manager.beginTransaction();        fragmentTransaction.replace(R.id.container, fragment1);        fragmentTransaction.commit();    }    @OnClick({R.id.blue_btn1, R.id.blue_btn2})    public void onClick(View view) {        FragmentManager manager = getSupportFragmentManager();        FragmentTransaction fragmentTransaction = manager.beginTransaction();        switch (view.getId()) {            case R.id.blue_btn1:                if (fragment1 == null) {                    fragment1 = new BlurWeatherFragment();                }                fragmentTransaction.replace(R.id.container, fragment1);                break;            case R.id.blue_btn2:                if (fragment2 == null) {                    fragment2 = new BlurredViewBasicFragment();                }                fragmentTransaction.replace(R.id.container, fragment2);                break;        }        fragmentTransaction.commit();    }}

xml 布局

            <?xml version="1.0" encoding="utf-8"?>    <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"        android:layout_width="match_parent"        android:layout_height="match_parent"        android:orientation="vertical">        <include layout="@layout/toolbar" />        <LinearLayout            android:layout_width="match_parent"            android:layout_height="wrap_content"            android:orientation="horizontal">            <Button                android:id="@+id/blue_btn1"                android:layout_width="0dp"                android:layout_height="wrap_content"                android:layout_weight="1"                android:text="RecycleView样式" />            <Button                android:id="@+id/blue_btn2"                android:layout_width="0dp"                android:layout_height="wrap_content"                android:layout_weight="1"                android:text="调节虚化" />        </LinearLayout>        <RelativeLayout            android:id="@+id/container"            android:layout_width="match_parent"            android:layout_height="match_parent"></RelativeLayout>    </LinearLayout>

• BlurredViewBasicFragment

              /**     * 描述：     * 作者：Marc on 2016/8/4 10:54     * 邮箱：[e-mail]     */    public class BlurredViewBasicFragment extends Fragment {        Activity activity;        /**         * 进度条SeekBar         */        private SeekBar mSeekBar;        /**         * 显示进度的文字         */        private TextView mProgressTv;        /**         * Blurredview         */        private BlurredView mBlurredView;        private View view;        @Override        public void onActivityCreated(@Nullable Bundle savedInstanceState) {            super.onActivityCreated(savedInstanceState);        }        @Override        public void onCreate(@Nullable Bundle savedInstanceState) {            super.onCreate(savedInstanceState);            activity = getActivity();        }        @Nullable        @Override        public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {            view = View.inflate(activity, R.layout.blurrediview_basic, null);            // 初始化视图            initViews();            // 处理seekbar滑动事件            setSeekBar();            return view;        }        private void initViews() {            mSeekBar = (SeekBar) view.findViewById(R.id.activity_main_seekbar);            mProgressTv = (TextView) view.findViewById(R.id.activity_main_progress_tv);            mBlurredView = (BlurredView) view.findViewById(R.id.activity_main_blurredview);            // 可以在代码中使用setBlurredImg()方法指定需要模糊的图片            mBlurredView.setBlurredImg(getResources().getDrawable(R.drawable.gou));            // 设置完成后需要调用showBlurredView方法显示要模糊的图片            mBlurredView.showBlurredView();        }        private void setSeekBar() {            mSeekBar.setMax(100);            mSeekBar.setOnSeekBarChangeListener(new SeekBar.OnSeekBarChangeListener() {                @Override                public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) {                    mBlurredView.setBlurredLevel(progress);                    mProgressTv.setText(String.valueOf(progress));                }                @Override                public void onStartTrackingTouch(SeekBar seekBar) {                }                @Override                public void onStopTrackingTouch(SeekBar seekBar) {                }            });        }    }

xml布局

                <?xml version="1.0" encoding="utf-8"?>        <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"            xmlns:app="http://schemas.android.com/apk/res-auto"            android:id="@+id/activity_main"            android:layout_width="match_parent"            android:layout_height="match_parent"            android:orientation="vertical">            <RelativeLayout                android:layout_width="match_parent"                android:layout_height="0dp"                android:layout_weight="1">                <com.tescoo.aat.aat.blur.BlurredView                    android:id="@+id/activity_main_blurredview"                    android:layout_width="match_parent"                    android:layout_height="match_parent" />                <!-- 没有指定圆形ImageView属性时，默认没有外边圆颜色 -->                <!-- 需要将图片资源自定为src ，或在程序中setImageResource(res)                不能设置background为图片，这样不能达到圆形效果-->                <com.tescoo.aat.widget.RoundImageView                    android:layout_width="100dp"                    android:layout_height="100dp"                    android:layout_centerInParent="true"                    android:src="@drawable/gou"                    app:border_color="#10FFFFFF"                    app:border_width="5dp" />            </RelativeLayout>            <LinearLayout                android:layout_width="match_parent"                android:layout_height="80dp"                android:orientation="vertical">                <SeekBar                    android:id="@+id/activity_main_seekbar"                    android:layout_width="match_parent"                    android:layout_height="wrap_content"                    android:layout_marginLeft="16dp"                    android:layout_marginRight="16dp"                    android:layout_marginTop="@dimen/activity_vertical_margin" />                <TextView                    android:id="@+id/activity_main_progress_tv"                    android:layout_width="wrap_content"                    android:layout_height="wrap_content"                    android:layout_gravity="center"                    android:text="0"                    android:textSize="24sp" />            </LinearLayout>        </LinearLayout>

• BlurRecycleFragment

      /**     * 描述：     * 作者：Marc on 2016/8/4 10:44     * 邮箱：[e-mail]     */    public class BlurRecycleFragment extends Fragment {        /**         * blurredview         */        private BlurredView mBlurredView;        /**         * RecyclerView         */        private RecyclerView mRecyclerView;        private int mScrollerY;        private int mAlpha;        Activity activity;        @Override        public void onActivityCreated(@Nullable Bundle savedInstanceState) {            super.onActivityCreated(savedInstanceState);        }        @Override        public void onCreate(@Nullable Bundle savedInstanceState) {            super.onCreate(savedInstanceState);            activity = getActivity();        }        @Nullable        @Override        public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {            View view = View.inflate(activity, R.layout.blurrediview_weather, null);            mBlurredView = (BlurredView) view.findViewById(R.id.yahooweather_blurredview);            mRecyclerView = (RecyclerView) view.findViewById(R.id.yahooweather_recyclerview);            mRecyclerView.setLayoutManager(new LinearLayoutManager(activity));            mRecyclerView.setAdapter(new RecyclerViewAdapter(activity));            mRecyclerView.addOnScrollListener(new RecyclerView.OnScrollListener() {                @Override                public void onScrollStateChanged(RecyclerView recyclerView, int newState) {                    super.onScrollStateChanged(recyclerView, newState);                }                @Override                public void onScrolled(RecyclerView recyclerView, int dx, int dy) {                    super.onScrolled(recyclerView, dx, dy);                    mScrollerY += dy;                    if (Math.abs(mScrollerY) > 1000) {                        mBlurredView.setBlurredTop(100);                        mAlpha = 100;                    } else {                        mBlurredView.setBlurredTop(mScrollerY / 10);                        mAlpha = Math.abs(mScrollerY) / 10;                    }                    mBlurredView.setBlurredLevel(mAlpha);                }            });            return view;        }    }

xml布局

            <?xml version="1.0" encoding="utf-8"?>    <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"        xmlns:app="http://schemas.android.com/apk/res-auto"        android:layout_width="match_parent"        android:layout_height="match_parent"        android:orientation="vertical">        <com.tescoo.aat.aat.blur.BlurredView            android:id="@+id/recycleblur_blurredview"            android:layout_width="match_parent"            android:layout_height="match_parent"            app:disableBlurred="false"            app:move="true"            app:src="@drawable/gou" />        <LinearLayout            android:id="@+id/top"            android:background="@drawable/title_shape"            android:layout_width="match_parent"            android:layout_height="wrap_content"            android:orientation="vertical"            android:paddingBottom="8dp"            android:paddingTop="8dp">            <TextView                android:layout_width="wrap_content"                android:layout_height="wrap_content"                android:layout_gravity="center"                android:text="Marc"                android:textColor="@android:color/white"                android:textSize="18sp" />            <TextView                android:layout_width="wrap_content"                android:layout_height="wrap_content"                android:layout_gravity="center"                android:text="aliali_ha"                android:textColor="@android:color/white"                android:textSize="10sp" />        </LinearLayout>        <android.support.v7.widget.RecyclerView            android:id="@+id/blur_recyclerview"            android:layout_width="match_parent"            android:layout_height="match_parent"            android:layout_below="@id/top" />    </RelativeLayout>

• RecyclerViewAdapter

      /** * 描述：这里注意。使用了2个ViewHolder，类型使用RecyclerView.ViewHolder * 作者：Marc on 2016/8/4 14:27 * 邮箱：[e-mail] */public class RecyclerViewAdapter extends RecyclerView.Adapter<RecyclerView.ViewHolder> {    private final Context context;    private static final int ITEM_COUNT = 10;    private static final int TYPE_HEADER = 0;    private static final int TYPE_ITEM = 1;    public RecyclerViewAdapter(Context context) {        this.context = context;    }    @Override    public RecyclerView.ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {        if (viewType == TYPE_HEADER) {            return new HeaderHolder(LayoutInflater.from(context).inflate(R.layout.recyclerview_header, parent, false));        }        return new ViewHolder(LayoutInflater.from(context).inflate(R.layout.recyclerview_item, parent, false));    }    @Override    public void onBindViewHolder(RecyclerView.ViewHolder holder, int position) {        //这里没使用数据    }    @Override    public int getItemCount() {        return ITEM_COUNT;    }    /**     * recycleview增加header什么的感觉确实比listview方便了好多     *     * @param position     * @return     */    @Override    public int getItemViewType(int position) {        if (position == 0) {            return TYPE_HEADER;        } else {            return TYPE_ITEM;        }    }    /**     * item的viewholder     */    public class ViewHolder extends RecyclerView.ViewHolder {        public ViewHolder(View itemView) {            super(itemView);        }    }    /**     * 头部viewholder     */    private class HeaderHolder extends RecyclerView.ViewHolder {        public HeaderHolder(View itemView) {            super(itemView);        }    }}