Android仿QQ附近的人搜索展示功能

public class Info {
private int portraitId;//头像id
private String name;//名字
private String age;//年龄
private boolean sex;//false为男，true为女
private float distance;//距离
public int getPortraitId() {
return portraitId;
}
public void setPortraitId(int portraitId) {
this.portraitId = portraitId;
}
public String getAge() {
return age;
}
public void setAge(String age) {
this.age = age;
}
public float getDistance() {
return distance;
}
public void setDistance(float distance) {
this.distance = distance;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public boolean getSex() {
return sex;
}
public void setSex(boolean sex) {
this.sex = sex;
}
}

public class CustomViewPager extends ViewPager{
private long downTime;
private float LastX;
private float mSpeed;
public CustomViewPager(Context context) {
super(context);
}
public CustomViewPager(Context context, AttributeSet attrs) {
super(context, attrs);
}
@Override
public boolean dispatchTouchEvent(MotionEvent ev) {
float x = ev.getX();
switch (ev.getAction()) {
case MotionEvent.ACTION_DOWN:
downTime = System.currentTimeMillis();
LastX = x;
break;
case MotionEvent.ACTION_MOVE:
x = ev.getX();
break;
case MotionEvent.ACTION_UP:
//计算得到手指从按下到离开的滑动速度
mSpeed = (x - LastX) * 1000 / (System.currentTimeMillis() - downTime);
break;
}
return super.dispatchTouchEvent(ev);
}
public float getSpeed() {
return mSpeed;
}
public void setSpeed(float mSpeed) {
this.mSpeed = mSpeed;
}
}

public class MainActivity extends Activity implements ViewPager.OnPageChangeListener, RadarViewGroup.IRadarClickListener {
private CustomViewPager viewPager;
private RelativeLayout ryContainer;
private RadarViewGroup radarViewGroup;
private int[] mImgs = {R.drawable.len, R.drawable.leo, R.drawable.lep,
R.drawable.leq, R.drawable.ler, R.drawable.les, R.drawable.mln, R.drawable.mmz, R.drawable.mna,
R.drawable.mnj, R.drawable.leo, R.drawable.leq, R.drawable.les, R.drawable.lep};
private String[] mNames = {"ImmortalZ", "唐马儒", "王尼玛", "张全蛋", "蛋花", "王大锤", "叫兽", "哆啦A梦"};
private int mPosition;
private FixedSpeedScroller scroller;
private SparseArray mDatas = new SparseArray<>();
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
initView();
initData();
/**
* 将Viewpager所在容器的事件分发交给ViewPager
*/
ryContainer.setOnTouchListener(new View.OnTouchListener() {
@Override
public boolean onTouch(View v, MotionEvent event) {
return viewPager.dispatchTouchEvent(event);
}
});
ViewpagerAdapter mAdapter = new ViewpagerAdapter();
viewPager.setAdapter(mAdapter);
//设置缓存数为展示的数目
viewPager.setOffscreenPageLimit(mImgs.length);
viewPager.setPageMargin(getResources().getDimensionPixelOffset(R.dimen.viewpager_margin));
//设置切换动画
viewPager.setPageTransformer(true, new ZoomOutPageTransformer());
viewPager.addOnPageChangeListener(this);
setViewPagerSpeed(250);
new Handler().postDelayed(new Runnable() {
@Override
public void run() {
radarViewGroup.setDatas(mDatas);
}
}, 1500);
radarViewGroup.setiRadarClickListener(this);
}
private void initData() {
for (int i = 0; i  1800 && mPosition > 0) {
//当手指右滑速度大于2000时viewpager左滑（注意item-1即可）
viewPager.setCurrentItem(mPosition - 1);
LogUtil.m("位置 " + mPosition);
viewPager.setSpeed(0);
}
}
@Override
public void onPageScrollStateChanged(int state) {
}
@Override
public void onRadarItemClick(int position) {
viewPager.setCurrentItem(position);
}
class ViewpagerAdapter extends PagerAdapter {
@Override
public Object instantiateItem(ViewGroup container, final int position) {
final Info info = mDatas.get(position);
//设置一大堆演示用的数据，麻里麻烦~~
View view = LayoutInflater.from(MainActivity.this).inflate(R.layout.viewpager_layout, null);
ImageView ivPortrait = (ImageView) view.findViewById(R.id.iv);
ImageView ivSex = (ImageView) view.findViewById(R.id.iv_sex);
TextView tvName = (TextView) view.findViewById(R.id.tv_name);
TextView tvDistance = (TextView) view.findViewById(R.id.tv_distance);
tvName.setText(info.getName());
tvDistance.setText(info.getDistance() + "km");
ivPortrait.setImageResource(info.getPortraitId());
if (info.getSex()) {
ivSex.setImageResource(R.drawable.girl);
} else {
ivSex.setImageResource(R.drawable.boy);
}
ivPortrait.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Toast.makeText(MainActivity.this, "这是 " + info.getName() + " >.<", Toast.LENGTH_SHORT).show();
}
});
container.addView(view);
return view;
}
@Override
public int getCount() {
return mImgs.length;
}
@Override
public boolean isViewFromObject(View view, Object object) {
return view == object;
}
@Override
public void destroyItem(ViewGroup container, int position, Object object) {
View view = (View) object;
container.removeView(view);
}
}
}

viewPager.setPageTransformer(true, new ZoomOutPageTransformer()); 

public class ZoomOutPageTransformer implements ViewPager.PageTransformer {
private static final float MIN_SCALE = 0.70f;
private static final float MIN_ALPHA = 0.5f;
public void transformPage(View view, float position) {
int pageWidth = view.getWidth();
int pageHeight = view.getHeight();
if (position <-1) { // [-Infinity,-1)
// This page is way off-screen to the left.
view.setAlpha(MIN_ALPHA);
view.setScaleX(MIN_SCALE);
view.setScaleY(MIN_SCALE);
} else if (position <= 1) { // [-1,1]
// Modify the default slide transition to shrink the page as well
float scaleFactor = Math.max(MIN_SCALE, 1 - Math.abs(position));
float vertMargin = pageHeight * (1 - scaleFactor) / 2;
float horzMargin = pageWidth * (1 - scaleFactor) / 2;
if (position <0) {
view.setTranslationX(horzMargin - vertMargin / 2);
view.setScaleX(1 + 0.3f * position);
view.setScaleY(1 + 0.3f * position);
} else {
view.setTranslationX(-horzMargin + vertMargin / 2);
view.setScaleX(1 - 0.3f * position);
view.setScaleY(1 - 0.3f * position);
}
// Scale the page down (between MIN_SCALE and 1)
// Fade the page relative to its size.
view.setAlpha(MIN_ALPHA + (scaleFactor - MIN_SCALE) / (1 - MIN_SCALE) * (1 - MIN_ALPHA));
} else { // (1,+Infinity]
// This page is way off-screen to the right.
view.setScaleX(MIN_SCALE);
view.setScaleY(MIN_SCALE);
view.setAlpha(MIN_ALPHA);
}
}
}

public class RadarView extends View {
private Paint mPaintLine;//画圆线需要用到的paint
private Paint mPaintCircle;//画圆需要用到的paint
private Paint mPaintScan;//画扫描需要用到的paint
private int mWidth, mHeight;//整个图形的长度和宽度
private Matrix matrix = new Matrix();//旋转需要的矩阵
private int scanAngle;//扫描旋转的角度
private Shader scanShader;//扫描渲染shader
private Bitmap centerBitmap;//最中间icon
//每个圆圈所占的比例
private static float[] circleProportion = {1 / 13f, 2 / 13f, 3 / 13f, 4 / 13f, 5 / 13f, 6 / 13f};
private int scanSpeed = 5;
private int currentScanningCount;//当前扫描的次数
private int currentScanningItem;//当前扫描显示的item
private int maxScanItemCount;//最大扫描次数
private boolean startScan = false;//只有设置了数据后才会开始扫描
private IScanningListener iScanningListener;//扫描时监听回调接口
public void setScanningListener(IScanningListener iScanningListener) {
this.iScanningListener = iScanningListener;
}
private Runnable run = new Runnable() {
@Override
public void run() {
scanAngle = (scanAngle + scanSpeed) % 360;
matrix.postRotate(scanSpeed, mWidth / 2, mHeight / 2);
invalidate();
postDelayed(run, 130);
//开始扫描显示标志为true 且 只扫描一圈
if (startScan && currentScanningCount <= (360 / scanSpeed)) {
if (iScanningListener != null && currentScanningCount % scanSpeed == 0
&& currentScanningItem 

public class CircleView extends View {
private Paint mPaint;
private Bitmap mBitmap;
private float radius = DisplayUtils.dp2px(getContext(),9);//半径
private float disX;//位置X
private float disY;//位置Y
private float angle;//旋转的角度
private float proportion;//根据远近距离的不同计算得到的应该占的半径比例
public float getProportion() {
return proportion;
}
public void setProportion(float proportion) {
this.proportion = proportion;
}
public float getAngle() {
return angle;
}
public void setAngle(float angle) {
this.angle = angle;
}
public float getDisX() {
return disX;
}
public void setDisX(float disX) {
this.disX = disX;
}
public float getDisY() {
return disY;
}
public void setDisY(float disY) {
this.disY = disY;
}
public CircleView(Context context) {
this(context, null);
}
public CircleView(Context context, AttributeSet attrs) {
this(context, attrs, 0);
}
public CircleView(Context context, AttributeSet attrs, int defStyleAttr) {
super(context, attrs, defStyleAttr);
init();
}
private void init() {
mPaint = new Paint();
mPaint.setColor(getResources().getColor(R.color.bg_color_pink));
mPaint.setAntiAlias(true);
}
@Override
protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
super.onMeasure(widthMeasureSpec, heightMeasureSpec);
setMeasuredDimension(measureSize(widthMeasureSpec), measureSize(heightMeasureSpec));
}
private int measureSize(int measureSpec) {
int result = 0;
int specMode = MeasureSpec.getMode(measureSpec);
int specSize = MeasureSpec.getSize(measureSpec);
if (specMode == MeasureSpec.EXACTLY) {
result = specSize;
} else {
result = DisplayUtils.dp2px(getContext(),18);
if (specMode == MeasureSpec.AT_MOST) {
result = Math.min(result, specSize);
}
}
return result;
}
@Override
protected void onDraw(Canvas canvas) {
canvas.drawCircle(radius, radius, radius, mPaint);
if (mBitmap != null) {
canvas.drawBitmap(mBitmap, null, new Rect(0, 0, 2 * (int) radius, 2 * (int) radius), mPaint);
}
}
public void setPaintColor(int resId) {
mPaint.setColor(resId);
invalidate();
}
public void setPortraitIcon(int resId) {
mBitmap = BitmapFactory.decodeResource(getResources(), resId);
invalidate();
}
public void clearPortaitIcon(){
mBitmap = null;
invalidate();
}
}

public class RadarViewGroup extends ViewGroup implements RadarView.IScanningListener {
private int mWidth, mHeight;//viewgroup的宽高
private SparseArray scanAngleList = new SparseArray<>();//记录展示的item所在的扫描位置角度
private SparseArray mDatas;//数据源
private int dataLength;//数据源长度
private int minItemPosition;//最小距离的item所在数据源中的位置
private CircleView currentShowChild;//当前展示的item
private CircleView minShowChild;//最小距离的item
private IRadarClickListener iRadarClickListener;//雷达图中点击监听CircleView小圆点回调接口
public void setiRadarClickListener(IRadarClickListener iRadarClickListener) {
this.iRadarClickListener = iRadarClickListener;
}
public RadarViewGroup(Context context) {
this(context, null);
}
public RadarViewGroup(Context context, AttributeSet attrs) {
this(context, attrs, 0);
}
public RadarViewGroup(Context context, AttributeSet attrs, int defStyleAttr) {
super(context, attrs, defStyleAttr);
}
@Override
protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
setMeasuredDimension(measureSize(widthMeasureSpec), measureSize(heightMeasureSpec));
mWidth = getMeasuredWidth();
mHeight = getMeasuredHeight();
mWidth = mHeight = Math.min(mWidth, mHeight);
//测量每个children
measureChildren(widthMeasureSpec, heightMeasureSpec);
for (int i = 0; i  0) {
((RadarView) child).setMaxScanItemCount(mDatas.size());
((RadarView) child).startScan();
}
continue;
}
}
}
@Override
protected void onLayout(boolean changed, int l, int t, int r, int b) {
int childCount = getChildCount();
//首先放置雷达扫描图
View view = findViewById(R.id.id_scan_circle);
if (view != null) {
view.layout(0, 0, view.getMeasuredWidth(), view.getMeasuredHeight());
}
//放置雷达图中需要展示的item圆点
for (int i = 0; i  mDatas) {
this.mDatas = mDatas;
dataLength = mDatas.size();
float min = Float.MAX_VALUE;
float max = Float.MIN_VALUE;
//找到距离的最大值，最小值对应的minItemPosition
for (int j = 0; j  max) {
max = item.getDistance();
}
scanAngleList.put(j, 0f);
}
//根据数据源信息动态添加CircleView
for (int i = 0; i