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再进行高斯模糊图片

2019-09-09 16:51

图片 1GIF.gif

尤为重要设计理念。下拉图形----使用ScrollView 。让 计算滑动y方向偏移值 让图片向上-四拾七个DP 自个儿定义,当向下移动时突显所以图片,不是下拉时不管理,甩手再次来到,再拓宽高斯模糊图片。

规律相比简单下拉源码图片如下:

public class PullScrollView extends ScrollView implements ViewTreeObserver.OnGlobalLayoutListener {View view;int srcTopMargion;float lastY;float offsetY;public PullScrollView(Context context, AttributeSet attrs) { super(context, attrs); ViewTreeObserver observer = getViewTreeObserver(); if (null != observer) observer.addOnGlobalLayoutListener;}@Overrideprotected void onFinishInflate() { super.onFinishInflate(); view = findViewById(R.id.pull_img);}@Overridepublic boolean onTouchEvent(MotionEvent ev) { int action = ev.getAction(); float y = ev.getY(); Log.d("onTouchEvent", "action=" + action + ",y=" + y); MarginLayoutParams params = (MarginLayoutParams) view.getLayoutParams(); switch  { case MotionEvent.ACTION_DOWN: lastY = y; break; case MotionEvent.ACTION_MOVE: //计算滑动y方向偏移值 offsetY = y - lastY; //向下移动 if (offsetY > 0) { //滑动到看到所有图片展示,交给原来的逻辑处理 if (params.topMargin == 0) { return super.onTouchEvent; } //在不是下拉图片的时候,向下移动,交给原来的逻辑处理 if (getScrollY { return super.onTouchEvent; } //可以下拉图片的情况 params.topMargin += offsetY / 10; Log.d("onTouchEvent", "topMargin" + params.topMargin + ",lastY=" + lastY + ",y=" + y + ",offsetY" + offsetY); if (params.topMargin >= 0) { params.topMargin = 0; } view.setLayoutParams; invalidate(); } lastY = y; break; case MotionEvent.ACTION_UP: //不和原始margion偏移一样的时候 if (params.topMargin != -srcTopMargion) { Log.d("ACTION_UP", "moveY=" + (srcTopMargion + params.topMargin)); //滚动原始偏移值和现在偏移值之间的差值 eg:3~10 ObjectAnimator animator = ObjectAnimator.ofInt(this, "moveY", params.topMargin, -srcTopMargion); animator.setDuration; animator.setInterpolator(new AccelerateDecelerateInterpolator; animator.start(); } break; } return super.onTouchEvent;}/** * 设置移动中的Y值 * * @param value */public void setMoveY(int value) { MarginLayoutParams params = (MarginLayoutParams) view.getLayoutParams(); params.topMargin = value; Log.d("computeScroll", "topMargin=" + params.topMargin); view.setLayoutParams; invalidate();}@Overridepublic void onGlobalLayout() { MarginLayoutParams params = (MarginLayoutParams) view.getLayoutParams(); srcTopMargion = -params.topMargin; Log.d("srcTopMargion", "" + srcTopMargion); getViewTreeObserver() .removeGlobalOnLayoutListener;}}

高斯模糊代码:

public class BitmapBlurUtil { private static ExecutorService executor; private static int POOL_SIZE = 2;// 单个CPU线程池大小 private static ExecutorService getExecutor() { if (executor == null) { int cpuNums = Runtime.getRuntime().availableProcessors(); executor = Executors.newFixedThreadPool(cpuNums * POOL_SIZE); } return executor; } public static void addTask(Bitmap bitmap, Handler handler) { getExecutor().submit(new BitmapVagueTask(bitmap, handler)); } /** * 水平方向模糊度 */ private static float hRadius = 3; /** * 竖直方向模糊度 */ private static float vRadius = 3; /** * 模糊迭代度 */ private static int iterations = 5; /** * 异步 * * @author baiyuliang */ private static class BitmapVagueTask implements Runnable { private Bitmap bitmap; private Handler handler; public BitmapVagueTask(Bitmap bitmap, Handler handler) { super(); this.bitmap = bitmap; this.handler = handler; } @Override public void run() { boxBlurFilter(bitmap, handler); } } /** * 高斯模糊 * * @param bmp * @return */ private static void boxBlurFilter(Bitmap bmp, Handler handler) { int width = bmp.getWidth(); int height = bmp.getHeight(); int[] inPixels = new int[width * height]; int[] outPixels = new int[width * height]; Bitmap bitmap = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888); bmp.getPixels(inPixels, 0, width, 0, 0, width, height); for (int i = 0; i < iterations; i++) { blur(inPixels, outPixels, width, height, hRadius); blur(outPixels, inPixels, height, width, vRadius); } blurFractional(inPixels, outPixels, width, height, hRadius); blurFractional(outPixels, inPixels, height, width, vRadius); bitmap.setPixels(inPixels, 0, width, 0, 0, width, height); if (handler != null) { @SuppressWarnings("deprecation") Drawable drawable = new BitmapDrawable; Message message = new Message(); message.obj = drawable; handler.sendMessage; } } private static void blur(int[] in, int[] out, int width, int height, float radius) { int widthMinus1 = width - 1; int r =  radius; int tableSize = 2 * r + 1; int divide[] = new int[256 * tableSize]; for (int i = 0; i < 256 * tableSize; i++) divide[i] = i / tableSize; int inIndex = 0; for (int y = 0; y < height; y++) { int outIndex = y; int ta = 0, tr = 0, tg = 0, tb = 0; for (int i = -r; i <= r; i++) { int rgb = in[inIndex + clamp(i, 0, width - 1)]; ta += (rgb >> 24) & 0xff; tr += (rgb >> 16) & 0xff; tg += (rgb >> 8) & 0xff; tb += rgb & 0xff; } for (int x = 0; x < width; x++) { out[outIndex] = (divide[ta] << 24) | (divide[tr] << 16) | (divide[tg] << 8) | divide[tb]; int i1 = x + r + 1; if (i1 > widthMinus1) i1 = widthMinus1; int i2 = x - r; if (i2 < 0) i2 = 0; int rgb1 = in[inIndex + i1]; int rgb2 = in[inIndex + i2]; ta += ((rgb1 >> 24) & 0xff) - ((rgb2 >> 24) & 0xff); tr += ((rgb1 & 0xff0000) - (rgb2 & 0xff0000)) >> 16; tg += ((rgb1 & 0xff00) - (rgb2 & 0xff00)) >> 8; tb += (rgb1 & 0xff) - (rgb2 & 0xff); outIndex += height; } inIndex += width; } } private static void blurFractional(int[] in, int[] out, int width, int height, float radius) { radius -=  radius; float f = 1.0f / (1 + 2 * radius); int inIndex = 0; for (int y = 0; y < height; y++) { int outIndex = y; out[outIndex] = in[0]; outIndex += height; for (int x = 1; x < width - 1; x++) { int i = inIndex + x; int rgb1 = in[i - 1]; int rgb2 = in[i]; int rgb3 = in[i + 1]; int a1 = (rgb1 >> 24) & 0xff; int r1 = (rgb1 >> 16) & 0xff; int g1 = (rgb1 >> 8) & 0xff; int b1 = rgb1 & 0xff; int a2 = (rgb2 >> 24) & 0xff; int r2 = (rgb2 >> 16) & 0xff; int g2 = (rgb2 >> 8) & 0xff; int b2 = rgb2 & 0xff; int a3 = (rgb3 >> 24) & 0xff; int r3 = (rgb3 >> 16) & 0xff; int g3 = (rgb3 >> 8) & 0xff; int b3 = rgb3 & 0xff; a1 = a2 +   * radius); r1 = r2 +   * radius); g1 = g2 +   * radius); b1 = b2 +   * radius); a1 *= f; r1 *= f; g1 *= f; b1 *= f; out[outIndex] = (a1 << 24) | (r1 << 16) | (g1 << 8) | b1; outIndex += height; } out[outIndex] = in[width - 1]; inIndex += width; } } public static int clamp(int x, int a, int b) { return  ? a :  ? b : x; }}

高斯使用格局如下:layout.xml

<com.seekbaromdocated.PullScrollView xmlns:andro android: android:layout_width="match_parent" android:layout_height="match_parent" android:background="@color/hengxian" android:scrollbars="none"> <LinearLayout android:layout_width="match_parent" android:layout_height="match_parent" android:orientation="vertical"> <RelativeLayout android:layout_width="match_parent" android:layout_height="match_parent" android:background="@color/white"> <ImageView android: android:layout_width="match_parent" android:layout_height="220dp" android:layout_marginTop="-50dp" android:scaleType="fitXY" android:src="@mipmap/connect_ap_manually" /> <de.hdodenhof.circleimageview.CircleImageView xmlns:app="http://schemas.android.com/apk/res-auto" android: android:layout_width="100dp" android:layout_height="100dp" android:layout_alignParentTop="true" android:layout_centerHorizontal="true" android:layout_centerInParent="true" android:layout_marginTop="98dp" android:src="@mipmap/connect_ap_manually" app:civ_border_color="@color/white" app:civ_border_width="2dp" /> <ImageButton android: android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_alignParentLeft="true" android:layout_alignParentStart="true" android:layout_alignParentTop="true" android:layout_marginLeft="16.7dp" android:layout_marginStart="16.7dp" android:layout_marginTop="25dp" android:background="#00000000" /> </RelativeLayout> <LinearLayout android:layout_width="fill_parent" android:layout_height="match_parent" android:background="@color/white" android:orientation="vertical"> <TextView android:layout_width="wrap_content" android:layout_height="match_parent" android:layout_alignBottom="@+id/profile_image" android:layout_alignParentLeft="true" android:layout_alignParentStart="true" android:layout_gravity="center" android:layout_marginTop="13.3dp" android:textColor="#ff333333" android:text="昵称:哈哈哈" /> <TextView android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_gravity="center" android:textColor="#ff333333" android:text="123456789" /> <LinearLayout android:layout_width="fill_parent" android:layout_height="wrap_content" android:layout_marginBottom="10dp" android:layout_marginTop="15dp" android:textColor="#ff333333" android:orientation="horizontal"> <LinearLayout android:layout_width="0dp" android:layout_height="fill_parent" android:layout_weight="1" android:gravity="center" android:orientation="vertical"> </LinearLayout> <LinearLayout android: android:layout_width="0dp" android:layout_height="fill_parent" android:layout_weight="1" android:gravity="center" android:orientation="vertical"> <ImageButton android: android:layout_width="wrap_content" android:layout_height="wrap_content" android:background="#00000000" android:clickable="false" android:scaleType="fitXY" /> <TextView android: android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_marginTop="3dip" android:text="开发..." /> </LinearLayout> <LinearLayout android:layout_width="0dp" android:layout_height="fill_parent" android:layout_weight="1" android:gravity="center" android:orientation="vertical"> </LinearLayout> <LinearLayout android: android:layout_width="0dp" android:layout_height="fill_parent" android:layout_weight="1" android:gravity="center" android:orientation="vertical"> <ImageButton android: android:layout_width="wrap_content" android:layout_height="wrap_content" android:background="#00000000" android:clickable="false" android:scaleType="fitXY" /> <TextView android: android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_marginTop="3dip" android:text="学习..." /> </LinearLayout> <LinearLayout android:layout_width="0dp" android:layout_height="fill_parent" android:layout_weight="1" android:gravity="center" android:orientation="vertical"> </LinearLayout> </LinearLayout> </LinearLayout> <LinearLayout android:layout_width="match_parent" android:layout_height="match_parent" android:layout_marginTop="6.7dp" android:background="@color/white" android:orientation="vertical"> <RelativeLayout android: android:layout_width="fill_parent" android:layout_height="52dp" android:clickable="true" android:focusable="true"> <TextView android:layout_width="wrap_content" android:layout_height="fill_parent" android:drawablePadding="10.0dip" android:gravity="center_vertical" android:includeFontPadding="false" android:paddingLeft="16.7dip" android:text="检查更新" android:textColor="#ff333333" android:textSize="13sp" /> <RelativeLayout android:layout_width="fill_parent" android:layout_height="1px" android:layout_alignParentBottom="true" android:layout_centerHorizontal="true" android:layout_marginLeft="13dp" android:layout_marginRight="13dp" android:background="@color/hengxian"></RelativeLayout> </RelativeLayout> <RelativeLayout android: android:layout_width="fill_parent" android:layout_height="52dp" android:clickable="true" android:focusable="true"> <TextView android:layout_width="wrap_content" android:layout_height="fill_parent" android:drawablePadding="10.0dip" android:gravity="center_vertical" android:includeFontPadding="false" android:paddingLeft="16.7dip" android:text="意见反馈" android:textColor="#ff333333" android:textSize="13sp" /> <RelativeLayout android:layout_width="fill_parent" android:layout_height="1px" android:layout_alignParentBottom="true" android:layout_centerHorizontal="true" android:layout_marginLeft="13dp" android:layout_marginRight="33dp" android:background="@color/hengxian"></RelativeLayout> </RelativeLayout> <RelativeLayout android: android:layout_width="fill_parent" android:layout_height="52dp" android:clickable="true" android:focusable="true"> <TextView android:layout_width="wrap_content" android:layout_height="fill_parent" android:drawablePadding="10.0dip" android:gravity="center_vertical" android:includeFontPadding="false" android:paddingLeft="16.7dip" android:text="操作说明" android:textColor="#ff333333" android:textSize="13sp" /> </RelativeLayout> </LinearLayout> <LinearLayout android:layout_width="match_parent" android:layout_height="match_parent" android:layout_marginTop="6.7dp" android:background="@color/white" android:orientation="vertical"> <RelativeLayout android: android:layout_width="fill_parent" android:layout_height="52dp" android:clickable="true" android:focusable="true"> <TextView android:layout_width="wrap_content" android:layout_height="fill_parent" android:drawablePadding="10.0dip" android:gravity="center_vertical" android:includeFontPadding="false" android:paddingLeft="16.7dip" android:text="修改密码" android:textColor="#ff333333" android:textSize="13sp" /> <RelativeLayout android:layout_width="fill_parent" android:layout_height="1px" android:layout_alignParentBottom="true" android:layout_centerHorizontal="true" android:layout_marginLeft="13dp" android:layout_marginRight="13dp" android:background="@color/hengxian"></RelativeLayout> </RelativeLayout> <RelativeLayout android: android:layout_width="fill_parent" android:layout_height="52dp" android:clickable="true" android:focusable="true"> <TextView android:layout_width="wrap_content" android:layout_height="fill_parent" android:drawablePadding="10.0dip" android:gravity="center_vertical" android:includeFontPadding="false" android:paddingLeft="16.7dip" android:text="退出登录" android:textColor="#ff333333" android:textSize="13sp" /> </RelativeLayout> </LinearLayout> </LinearLayout></com.seekbaromdocated.PullScrollView>

Activity如下:

public class PersonalActivity extends Activity implements View.OnClickListener { ImageView pull_img; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_personal); pull_img = (ImageView) findViewById(R.id.pull_img); Resources res = getResources(); Bitmap bmp = BitmapFactory.decodeResource(res, R.mipmap.connect_ap_manually); BitmapBlurUtil.addTask(bmp, new Handler() { @Override public void handleMessage(Message msg) { super.handleMessage; Drawable drawable =  msg.obj; pull_img.setImageDrawable; } }); } @Override public void onClick(View view) { }}

应用起来照旧相比较轻松的。圆形图像的能够参照他事他说加以考察小编的那篇文章

抑或是采纳 感激。

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