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支付宝咻一咻怎么用 Android帮你实现咻一咻

2020-04-11 10:50:18
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对于之前最火的无外乎集五福了,而五福除了加十个好友获得外,最直接的途径就是支付宝的咻一咻了。那么咻一咻具体有哪些实现方式呢?下面我们将一一介绍这几种思路的实现过程。

1.自定义View实现咻一咻

那么这种实现方法需要掌握Canvas以及Paint几乎所有的方法。其对程序员的专业知识要求极高。

用该种方式实现的优点有:

  • ㈠这种是最复杂的实现方法,但其兼容性最高,其支持android的所有设备。
  • ㈡其对内存要求不大,几乎不占用任何内存。

下面我们来看看是怎样实现其效果的:

public class XiuYiXiuView extends View { /***  * 中心图片画笔  */ private Paint paint; /***  * 水波圆圈画笔  */ private Paint circlePaint; /***  * 用bitmap创建画布  */ private Bitmap bitmap; /***  * 中心图片  */ private Bitmap imageBit; /***  * 画布  */ private Canvas canvas; /***  * 屏幕的宽  */ private int screenWidth; /***  * 屏幕的高  */ private int screenHeight; /***  * 图片右上角坐标  */ private Point pointLeftTop; /***  * 图片右下角坐标  */ private Point pointRightBottom; /***  * 记录圆圈  */ private List<LYJCircle> lyjCircleList; /***  * 标记是否按下按钮,并且源泉是否扩散消失  */ private boolean isSpread=false; /***  * 默认没有按动时候的圆圈  */ private LYJCircle defaultCircle; public XiuYiXiuView(Context context, AttributeSet attrs) {  super(context, attrs);  this.lyjCircleList=new ArrayList<>();  screenWidth=LYJUtils.getScreenWidth((Activity) context);  screenHeight=LYJUtils.getScreenHeight((Activity) context);  bitmap = Bitmap.createBitmap(screenWidth, screenHeight, Bitmap.Config.ARGB_8888); // 设置位图的宽高  canvas = new Canvas();  canvas.setBitmap(bitmap);  paint=new Paint(Paint.DITHER_FLAG);  paint.setAntiAlias(true);  circlePaint=new Paint(Paint.DITHER_FLAG);  circlePaint.setAntiAlias(true);  imageBit= BitmapFactory.decodeResource(getResources(), R.drawable.bwa_homepage_yuyin);  pointLeftTop=new Point((screenWidth/2)-(imageBit.getWidth()/2),(screenHeight/2)-(imageBit.getHeight()/2));  pointRightBottom=new Point(pointLeftTop.x+imageBit.getWidth(),pointLeftTop.y+imageBit.getHeight());  canvas.drawBitmap(imageBit,pointLeftTop.x,pointLeftTop.y,paint);  //取图片上的颜色  Palette.generateAsync(imageBit, new Palette.PaletteAsyncListener() {   @Override   public void onGenerated(Palette palette) {    Palette.Swatch swatch1 = palette.getVibrantSwatch(); //充满活力的色板    circlePaint.setColor(swatch1.getRgb());    circlePaint.setStyle(Paint.Style.STROKE);    circlePaint.setStrokeWidth(10);    circlePaint.setAlpha(100);    paint.setShadowLayer(15, 0, 0, swatch1.getRgb());//设置阴影效果    int[] mColors = new int[] {//渲染颜色      Color.TRANSPARENT,swatch1.getRgb()    };    //范围,这里可以微调,实现你想要的渐变    float[] mPositions = new float[] {      0f, 0.1f    };    Shader shader=new RadialGradient(screenWidth / 2,screenHeight / 2,imageBit.getWidth() / 2 + 10,mColors, mPositions,      Shader.TileMode.MIRROR);    circlePaint.setShader(shader);    defaultCircle=new LYJCircle(screenWidth / 2, screenHeight / 2, imageBit.getWidth() / 2 + 10);    clearScreenAndDrawList();    Message message = handler.obtainMessage(1);    handler.sendMessageDelayed(message, 1000); //发送message   }  }); } @Override public boolean onTouchEvent(MotionEvent event) {  switch (event.getAction()){   case MotionEvent.ACTION_DOWN:    break;   case MotionEvent.ACTION_MOVE:    break;   case MotionEvent.ACTION_UP:    isSpread=true;//是否按下图片    lyjCircleList.add(new LYJCircle(screenWidth / 2, screenHeight / 2, imageBit.getWidth() / 2 + 10));    clearScreenAndDrawList();    invalidate();    break;   default:    break;  }  return true; } private Handler handler = new Handler(){  public void handleMessage(Message msg){   switch (msg.what) {    case 1:     //定时更新界面     clearScreenAndDrawList();     invalidate();     Message message = handler.obtainMessage(1);     handler.sendMessageDelayed(message, 200);   }   super.handleMessage(msg);  } }; /**  * 清掉屏幕上所有的圆圈,然后画出集合里面的圆圈  */ private void clearScreenAndDrawList() {  canvas.drawColor(Color.TRANSPARENT, PorterDuff.Mode.CLEAR);  //判断是否按下图片,并且外圈执行完成没有。  if(!isSpread){    circlePaint.setMaskFilter(null);    canvas.drawCircle(defaultCircle.getRoundX(), defaultCircle.getRoundY(),defaultCircle.getRadiuLoop(), circlePaint);// 画线  }else{   for (LYJCircle lyjCircle : lyjCircleList) {    if(lyjCircle.getSpreadRadiu()==0){    }else if(lyjCircle.getSpreadRadiu()>(lyjCircle.getRadiu()+99)){     //如果圆圈扩散半径大于图片半径+99,那么设置边缘模糊,也就是淡出的效果     circlePaint.setMaskFilter(new BlurMaskFilter(5, BlurMaskFilter.Blur.OUTER));     canvas.drawCircle(lyjCircle.getRoundX(), lyjCircle.getRoundY(),lyjCircle.getSpreadRadiu(), circlePaint);// 画线    }else{     //不是则按正常的环形渲染来     circlePaint.setMaskFilter(null);     canvas.drawCircle(lyjCircle.getRoundX(), lyjCircle.getRoundY(),lyjCircle.getSpreadRadiu(), circlePaint);// 画线    }   }  }  canvas.drawBitmap(imageBit,pointLeftTop.x,pointLeftTop.y,paint);  //释放小时了的圆圈  for(int i=0;i<lyjCircleList.size();i++){   if(lyjCircleList.get(i).getSpreadRadiu()==0){    lyjCircleList.remove(i);   }  }  //如果没有点击图片发射出去的圆圈,那么就恢复默认缩放。  if(lyjCircleList.size()<=0){   isSpread=false;  } } @Override protected void onDraw(Canvas canvas) {  canvas.drawBitmap(bitmap, 0, 0, null); }}

圆类:

package com.example.liyuanjing.model;/** * Created by liyuanjing on 2016/2/3. */public class LYJCircle { private int roundX;//圆中心点X坐标 private int roundY;//圆中心点Y坐标 private int radiu;//圆半径 private int currentRadiu;//当前radiu private int lastRadiu;//历史radiu private int spreadRadiu;//加速半径 private int[] speed=new int[]{6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6};//半径扩大速度。这里为匀速 private int speedLast=0;//记录历史值 public LYJCircle(int roundX,int roundY,int radiu){  this.roundX=roundX;  this.roundY=roundY;  this.radiu=radiu;  this.spreadRadiu=radiu;  this.currentRadiu=this.radiu;  this.lastRadiu=this.currentRadiu; } //获取半径 public int getRadiu() {  return radiu; } public void setRadiu(int radiu) {  this.radiu = radiu; } //获取加速半径 public int getSpreadRadiu(){  if(speedLast>=speed.length){   return 0;  }  spreadRadiu+=speed[speedLast];  ++speedLast;  return spreadRadiu; } //获取循环缩放半径 public int getRadiuLoop() {  if(currentRadiu==lastRadiu){   ++currentRadiu;  }else if(currentRadiu>lastRadiu){   if(currentRadiu>(radiu+20)){    currentRadiu=19+radiu;    lastRadiu=20+radiu;   }else{    lastRadiu=currentRadiu;    currentRadiu+=5;   }  }else{   if(currentRadiu<(radiu+9)){    currentRadiu=10+radiu;    lastRadiu=9+radiu;   }else{    lastRadiu=currentRadiu;    currentRadiu-=5;   }  }  return currentRadiu; } public int getRoundX() {  return roundX; } public int getRoundY() {  return roundY; }}

你可以修改如下两个地方,会产生视觉上真真的波纹效果:

①支付宝的背景图片是淡红色,衬托了红色的波纹。当然了你也可以将画布设置为透明淡红色。

②其为填充圆圈渲染,不是我的边框渲染效果,你可以将circlePaint.setStyle(Paint.Style.STROKE);换成Paint.Style.FILL.然后,微调shader的mPositions实现环形填充渐变。你也许会觉得,你看支付宝咻一咻圆圈弹开的时候内圈有波纹也像外弹开,其实那就是环形渐变,当你圆圈变大后,其渐变的范围也就变大了,自然你看到有颜色周围扩散的迹象。

2.属性动画实现咻一咻

其要掌握的只是基本只需要属性动画,在加一点线程方面有关的知识而已。

下面我们看看其实现步骤:

㈠自定义View实现一个圆即可,代码如下:

public class LYJCircleView extends View { private Bitmap bitmap; private Paint paint; private Canvas canvas; private int screenWidth; private int screenHeight; private boolean isSpreadFlag=false;//标记是否发射完成 public boolean isSpreadFlag() {  return isSpreadFlag; } public void setIsSpreadFlag(boolean isSpreadFlag) {  this.isSpreadFlag = isSpreadFlag; } public LYJCircleView(Context context,int width,int height,int statusHeight) {  super(context);  screenWidth= LYJUtils.getScreenWidth((Activity) context);  screenHeight=LYJUtils.getScreenHeight((Activity) context);  bitmap = Bitmap.createBitmap(screenWidth, screenHeight, Bitmap.Config.ARGB_8888); // 设置位图的宽高  canvas = new Canvas();  canvas.setBitmap(bitmap);  paint=new Paint(Paint.DITHER_FLAG);  paint.setAntiAlias(true);  paint.setColor(Color.RED);  paint.setStyle(Paint.Style.STROKE);  paint.setStrokeWidth(5);  paint.setAlpha(100);  paint.setShadowLayer(10, 0, 0, Color.RED);  int[] mColors = new int[] {    Color.TRANSPARENT,Color.RED  };  float[] mPositions = new float[] {    0f, 0.1f  };  Shader shader=new RadialGradient(screenWidth / 2,screenHeight / 2,width / 2 + 10,mColors, mPositions,    Shader.TileMode.MIRROR);  paint.setShader(shader);  canvas.drawCircle(screenWidth / 2, (screenHeight - statusHeight) / 2, width / 2 + 10, paint);  invalidate(); } @Override protected void onDraw(Canvas canvas) {  canvas.drawBitmap(bitmap,0,0,null); }}

代码与上面差不多,就不注释了。

㈡实现Activity即可

public class XiuYiXiuActivity extends AppCompatActivity { private ImageButton mImageButton; private LYJCircleView lyjCircleView; private RelativeLayout relativeLayout; private List<LYJCircleView> lyjCircleViewList; private int statusBarHeight; private Animator anim; @Override protected void onCreate(Bundle savedInstanceState) {  super.onCreate(savedInstanceState);  setContentView(R.layout.xiuyixiu_activity_main);  this.mImageButton=(ImageButton)findViewById(R.id.xiuyixiu_imagebutton);  this.relativeLayout=(RelativeLayout)findViewById(R.id.xiuyixiu_relativelayout);  this.lyjCircleViewList=new ArrayList<>();  this.mImageButton.setOnClickListener(new View.OnClickListener() {   @Override   public void onClick(View v) {    lyjCircleView.setVisibility(View.GONE);//发射圆圈,即将循环动画View隐藏    final LYJCircleView item=new LYJCircleView(XiuYiXiuActivity.this, mImageButton.getWidth(), mImageButton.getHeight(), statusBarHeight);    Animator spreadAnim = AnimatorInflater.loadAnimator(XiuYiXiuActivity.this, R.animator.circle_spread_animator);    spreadAnim.addListener(new Animator.AnimatorListener() {     @Override     public void onAnimationStart(Animator animation) {     }     @Override     public void onAnimationEnd(Animator animation) {      item.setIsSpreadFlag(true);//动画执行完成,标记一下     }     @Override     public void onAnimationCancel(Animator animation) {     }     @Override     public void onAnimationRepeat(Animator animation) {     }    });    spreadAnim.setTarget(item);    spreadAnim.start();    lyjCircleViewList.add(item);    relativeLayout.addView(item);    relativeLayout.invalidate();    Message message = handler.obtainMessage(1);    handler.sendMessageDelayed(message, 10); //发送message,定时释放LYJCircleView   }  }); } private Handler handler = new Handler(){  public void handleMessage(Message msg){   switch (msg.what) {    case 1:     for(int i=0;i<lyjCircleViewList.size();i++){      if(lyjCircleViewList.get(i).isSpreadFlag()){       relativeLayout.removeView(lyjCircleViewList.get(i));       lyjCircleViewList.remove(i);       relativeLayout.invalidate();      }     }     if(lyjCircleViewList.size()<=0){      lyjCircleView.setVisibility(View.VISIBLE);     }     Message message = handler.obtainMessage(1);     handler.sendMessageDelayed(message, 10);   }   super.handleMessage(msg);  } }; @Override public void onWindowFocusChanged(boolean hasFocus) {  super.onWindowFocusChanged(hasFocus);  //获取状态栏高度  Rect frame = new Rect();  getWindow().getDecorView().getWindowVisibleDisplayFrame(frame);  statusBarHeight = frame.top;  this.mImageButton.post(new Runnable() {   @Override   public void run() {    lyjCircleView = new LYJCircleView(XiuYiXiuActivity.this, mImageButton.getWidth(), mImageButton.getHeight(), statusBarHeight);    relativeLayout.addView(lyjCircleView);    relativeLayout.postInvalidate();    // 加载动画    anim = AnimatorInflater.loadAnimator(XiuYiXiuActivity.this, R.animator.circle_scale_animator);    anim.addListener(new Animator.AnimatorListener() {     @Override     public void onAnimationStart(Animator animation) {     }     @Override     public void onAnimationEnd(Animator animation) {      anim.start();//循环执行动画     }     @Override     public void onAnimationCancel(Animator animation) {     }     @Override     public void onAnimationRepeat(Animator animation) {     }    });    anim.setTarget(lyjCircleView);    anim.start();   }  }); }}

㈢布局文件代码如下:

<?xml version="1.0" encoding="utf-8"?><RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" android:id="@+id/xiuyixiu_relativelayout" android:layout_width="match_parent" android:layout_height="match_parent"> <ImageButton  android:id="@+id/xiuyixiu_imagebutton"  android:layout_width="wrap_content"  android:layout_height="wrap_content"  android:layout_centerInParent="true"  android:background="@drawable/bwa_homepage_yuyin"/></RelativeLayout>

当然上面两个实现方法,我都只设置圆边框,没有填充,你可以设置为填充后,在微调渐变值。

其属性动画文件circle_scale_animator.xml:

<?xml version="1.0" encoding="utf-8"?><set xmlns:android="http://schemas.android.com/apk/res/android" android:ordering="together"> <objectAnimator  android:duration="1000"  android:propertyName="scaleX"  android:valueFrom="1.0"  android:valueTo="1.2"  android:valueType="floatType"> </objectAnimator> <objectAnimator  android:duration="1000"  android:propertyName="scaleY"  android:valueFrom="1.0"  android:valueTo="1.2"  android:valueType="floatType"> </objectAnimator> <objectAnimator  android:startOffset="1000"  android:duration="1000"  android:propertyName="scaleX"  android:valueFrom="1.2"  android:valueTo="1.0"  android:valueType="floatType"> </objectAnimator> <objectAnimator  android:startOffset="1000"  android:duration="1000"  android:propertyName="scaleY"  android:valueFrom="1.2"  android:valueTo="1.0"  android:valueType="floatType"> </objectAnimator></set>

另一个circle_spread_animator.xml为:

<?xml version="1.0" encoding="utf-8"?><set xmlns:android="http://schemas.android.com/apk/res/android"> <objectAnimator  android:duration="1000"  android:propertyName="scaleY"  android:valueFrom="1.0"  android:valueTo="2.0"  android:valueType="floatType"> </objectAnimator> <objectAnimator  android:duration="1000"  android:propertyName="scaleX"  android:valueFrom="1.0"  android:valueTo="2.0"  android:valueType="floatType"> </objectAnimator></set>

以上就是本文的详细内容,希望对大家的学习有所帮助。

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