Android 好看的搜索界面，大赞Animation

转载请注明出处王亟亟的大牛之路

一直对Animation属于可有可无的不在意，看到个例子，觉得在不切换的情况下，适当的应用还真是蛮好看的。
包结构：

一个类一个控件，内容简单。

运行效果：

下方的下方箭头会上下移动，页面内的所有散乱的文字都是TextView，以及搜索和带删除的EditText

主Activity

public class MainActivity extends Activity implements OnClickListener {
    private static final int FEEDKEY_START = 1;
    private ImageView back_arrow;
    private ImageView search_button;
    private Animation shakeAnim;
    private DeletableEditText searchEdit;
    private KeywordsFlow keywordsFlow;
    private int STATE = 1;
    //页面滚动的数据源
    private static String[] keywords = new String[] { "弗拉基米尔", "希维尔", "蒙多",
            "茂凯", "潘森", "波比", "拉克丝", "索拉卡", "娑娜", "伊泽瑞尔", "费德提克", " 雷克顿",
            "古拉加斯", "卡萨丁", "迦娜", "奥莉安娜", "嘉文四世", " 莫德凯撒", " 崔丝塔娜", "布兰德",
            "卡尔玛", "塔里克", "莫甘娜", "凯南", " 兰博", "斯维因" ,"卡尔萨斯"};

    private Handler handler = new Handler() {
        public void handleMessage(android.os.Message msg) {
            switch (msg.what) {
            case FEEDKEY_START:
                keywordsFlow.rubKeywords();
                feedKeywordsFlow(keywordsFlow, keywords);
                keywordsFlow.go2Show(KeywordsFlow.ANIMATION_OUT);
                sendEmptyMessageDelayed(FEEDKEY_START, 5000);
                break;
            }
        };
    };

    private static void feedKeywordsFlow(KeywordsFlow keywordsFlow, String[] arr) {
        Random random = new Random();
        for (int i = 0; i < KeywordsFlow.MAX; i++) {
            int ran = random.nextInt(arr.length);
            String tmp = arr[ran];
            keywordsFlow.feedKeyword(tmp);
        }
    }

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_search);
        //加载动画效果
        shakeAnim = AnimationUtils.loadAnimation(this, R.anim.shake_y);
        initView();
    }

    private void initView() {
        keywordsFlow = (KeywordsFlow) findViewById(R.id.keywordsflow);
        keywordsFlow.setDuration(1000l);
        keywordsFlow.setOnItemClickListener(this);
        back_arrow = (ImageView) findViewById(R.id.back_arrow);
        back_arrow.setAnimation(shakeAnim);
        searchEdit = (DeletableEditText) findViewById(R.id.search_view);
        search_button=(ImageView)findViewById(R.id.search_button);
        search_button.setOnClickListener(this);
        feedKeywordsFlow(keywordsFlow, keywords);
        keywordsFlow.go2Show(KeywordsFlow.ANIMATION_IN);
        handler.sendEmptyMessageDelayed(FEEDKEY_START, 5000);
    }

    @Override
    public void onClick(View v) {
        if (v instanceof TextView) {
            String keyword = ((TextView) v).getText().toString().trim();
            searchEdit.setText(keyword);
            searchEdit.setSelection(keyword.length());
        }
        if(v.getId()==R.id.search_button&&searchEdit.getText().toString().length()!=0){
            Toast.makeText(MainActivity.this, "你搜索了 "+searchEdit.getText().toString(), Toast.LENGTH_SHORT).show();
        }
    }
    @Override
    public void onBackPressed() 
    {
        Intent intent = new Intent(Intent.ACTION_MAIN);
        intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
        intent.addCategory(Intent.CATEGORY_HOME);
        startActivity(intent);
    }

    @Override
    protected void onDestroy() {
        super.onDestroy();
        back_arrow.clearAnimation();
        handler.removeMessages(FEEDKEY_START);
        STATE = 0;
    }

    @Override
    protected void onStop() {
        super.onStop();
        handler.removeMessages(FEEDKEY_START);
        STATE = 0;
    }

    @Override
    public void onPause() {
        super.onPause();
        handler.removeMessages(FEEDKEY_START);
        STATE = 0;
    }

    @Override
    public void onResume() {
        super.onResume();
        if (STATE == 0) {
            keywordsFlow.rubKeywords();
            handler.sendEmptyMessageDelayed(FEEDKEY_START, 3000);
        }
    }       
}

分析：

用handle控制每次动画出现的时间，以及效果排列的算法。
提交按钮之所以不用Button因为 instanceof TextView的时候把Button也算进去了，无法做出分辨（Button 继承于TextView）

布局文件：

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:layout_height="match_parent" android:background="@drawable/bg_search" >

    <LinearLayout  android:id="@+id/search_layout" android:layout_width="match_parent" android:layout_height="wrap_content" android:layout_alignParentLeft="true" android:layout_alignParentTop="true" android:layout_marginLeft="25dp" android:layout_marginRight="25dp" android:layout_marginTop="30dp" android:orientation="vertical" >

        <com.wjj.demo.DeletableEditText  android:id="@+id/search_view" android:layout_width="match_parent" android:layout_height="wrap_content" android:background="@drawable/bg_edittext" android:drawableLeft="@drawable/ic_edittext_search" android:drawablePadding="6dp" android:drawableRight="@drawable/ic_edittext_delete" android:hint="请输入您要搜索的内容..." android:paddingBottom="7dp" android:paddingLeft="9dp" android:paddingRight="8dp" android:paddingTop="7dp" android:singleLine="true" android:textColor="#ffffff" android:textCursorDrawable="@null" android:textSize="16dp" />

        <LinearLayout  android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_marginTop="3dp" android:orientation="horizontal" >

            <ImageView  android:id="@+id/search_button" android:layout_width="80dp" android:layout_height="40dp" android:src="@drawable/ic_button_search"/>
        </LinearLayout>
    </LinearLayout>

    <com.wjj.demo.KeywordsFlow  android:id="@+id/keywordsflow" android:layout_width="match_parent" android:layout_height="match_parent" android:layout_below="@+id/search_layout" />

    <ImageView  android:id="@+id/back_arrow" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_alignParentBottom="true" android:layout_centerHorizontal="true" android:layout_marginBottom="14dp" android:src="@drawable/ic_back_arrow" />

</RelativeLayout>

自定义EditText

public class DeletableEditText extends EditText{
    private Drawable mRightDrawable;
    private boolean isHasFocus;

    public DeletableEditText(Context context) {
        super(context);
        init();
    }
    public DeletableEditText(Context context, AttributeSet attrs) {
        super(context, attrs);
        init();
    }

    public DeletableEditText(Context context, AttributeSet attrs, int defStyle) {
        super(context, attrs, defStyle);
        init();
    }

    private void init(){
        //getCompoundDrawables:
        //Returns drawables for the left, top, right, and bottom borders.
        Drawable [] drawables=this.getCompoundDrawables();

        //取得right位置的Drawable
        //即我们在布局文件中设置的android:drawableRight
        mRightDrawable=drawables[2];    

        //设置焦点变化的监听
        this.setOnFocusChangeListener(new FocusChangeListenerImpl());
        //设置EditText文字变化的监听
        this.addTextChangedListener(new TextWatcherImpl());
        //初始化时让右边clean图标不可见
        setClearDrawableVisible(false);
    }


    /** * 当手指抬起的位置在clean的图标的区域 * 我们将此视为进行清除操作 * getWidth():得到控件的宽度 * event.getX():抬起时的坐标(改坐标是相对于控件本身而言的) * getTotalPaddingRight():clean的图标左边缘至控件右边缘的距离 * getPaddingRight():clean的图标右边缘至控件右边缘的距离 * 于是: * getWidth() - getTotalPaddingRight()表示: * 控件左边到clean的图标左边缘的区域 * getWidth() - getPaddingRight()表示: * 控件左边到clean的图标右边缘的区域 * 所以这两者之间的区域刚好是clean的图标的区域 */
    @Override
    public boolean onTouchEvent(MotionEvent event) {
        switch (event.getAction()) {
        case MotionEvent.ACTION_UP:

            boolean isClean =(event.getX() > (getWidth() - getTotalPaddingRight()))&&
                             (event.getX() < (getWidth() - getPaddingRight()));
            if (isClean) {
                setText("");
            }
            break;

        default:
            break;
        }
        return super.onTouchEvent(event);
    }

    private class FocusChangeListenerImpl implements OnFocusChangeListener{
        @Override
        public void onFocusChange(View v, boolean hasFocus) {
             isHasFocus=hasFocus;
             if (isHasFocus) {
                 boolean isVisible=getText().toString().length()>=1;
                 setClearDrawableVisible(isVisible);
            } else {
                 setClearDrawableVisible(false);
            }
        }

    }

    //当输入结束后判断是否显示右边clean的图标
    private class TextWatcherImpl implements TextWatcher{
        @Override
        public void afterTextChanged(Editable s) {
             boolean isVisible=getText().toString().length()>=1;
             setClearDrawableVisible(isVisible);
        }

        @Override
        public void beforeTextChanged(CharSequence s, int start, int count,int after) {

        }

        @Override
        public void onTextChanged(CharSequence s, int start, int before,int count) {

        }

    }   

    //隐藏或者显示右边clean的图标
    protected void setClearDrawableVisible(boolean isVisible) {
        Drawable rightDrawable;
        if (isVisible) {
            rightDrawable = mRightDrawable;
        } else {
            rightDrawable = null;
        }
        //使用代码设置该控件left, top, right, and bottom处的图标
        setCompoundDrawables(getCompoundDrawables()[0],getCompoundDrawables()[1], 
                             rightDrawable,getCompoundDrawables()[3]);
    } 

    // 显示一个动画,以提示用户输入
    public void setShakeAnimation() {
        this.startAnimation(shakeAnimation(5));

    }

    //CycleTimes动画重复的次数
    public Animation shakeAnimation(int CycleTimes) {
        Animation translateAnimation = new TranslateAnimation(0, 10, 0, 10);
        translateAnimation.setInterpolator(new CycleInterpolator(CycleTimes));
        translateAnimation.setDuration(1000);
        return translateAnimation;
    }
}

自定义FrameLayout

public class KeywordsFlow extends FrameLayout implements OnGlobalLayoutListener {
    public static final int IDX_X = 0;
    public static final int IDX_Y = 1;
    public static final int IDX_TXT_LENGTH = 2;
    public static final int IDX_DIS_Y = 3;
    /** 由外至内的动画。 */
    public static final int ANIMATION_IN = 1;
    /** 由内至外的动画。 */
    public static final int ANIMATION_OUT = 2;
    /** 位移动画类型：从外围移动到坐标点。 */
    public static final int OUTSIDE_TO_LOCATION = 1;
    /** 位移动画类型：从坐标点移动到外围。 */
    public static final int LOCATION_TO_OUTSIDE = 2;
    /** 位移动画类型：从中心点移动到坐标点。 */
    public static final int CENTER_TO_LOCATION = 3;
    /** 位移动画类型：从坐标点移动到中心点。 */
    public static final int LOCATION_TO_CENTER = 4;
    public static final long ANIM_DURATION = 800l;
    public static final int MAX = 10;
    public static final int TEXT_SIZE_MAX = 21;
    public static final int TEXT_SIZE_MIN = 14;
    private OnClickListener itemClickListener;
    private static Interpolator interpolator;
    private static AlphaAnimation animAlpha2Opaque;
    private static AlphaAnimation animAlpha2Transparent;
    private static ScaleAnimation animScaleLarge2Normal, animScaleNormal2Large,
            animScaleZero2Normal, animScaleNormal2Zero;
    /** 存储显示的关键字。 */
    private Vector<String> vecKeywords;
    private int width, height;
    /** * go2Show()中被赋值为true，标识开发人员触发其开始动画显示。<br/> * 本标识的作用是防止在填充keywrods未完成的过程中获取到width和height后提前启动动画。<br/> * 在show()方法中其被赋值为false。<br/> * 真正能够动画显示的另一必要条件：width 和 height不为0。<br/> */
    private boolean enableShow;
    private Random random;
    /** * @see ANIMATION_IN * @see ANIMATION_OUT * @see OUTSIDE_TO_LOCATION * @see LOCATION_TO_OUTSIDE * @see LOCATION_TO_CENTER * @see CENTER_TO_LOCATION * */
    private int txtAnimInType, txtAnimOutType;
    /** 最近一次启动动画显示的时间。 */
    private long lastStartAnimationTime;
    /** 动画运行时间。 */
    private long animDuration;

    public KeywordsFlow(Context context, AttributeSet attrs, int defStyle) {
        super(context, attrs, defStyle);
        init();
    }

    public KeywordsFlow(Context context, AttributeSet attrs) {
        super(context, attrs);
        init();
    }

    public KeywordsFlow(Context context) {
        super(context);
        init();
    }

    private void init() {
        lastStartAnimationTime = 0l;
        animDuration = ANIM_DURATION;
        random = new Random();
        vecKeywords = new Vector<String>(MAX);
        getViewTreeObserver().addOnGlobalLayoutListener(this);
        interpolator = AnimationUtils.loadInterpolator(getContext(),
                android.R.anim.decelerate_interpolator);
        animAlpha2Opaque = new AlphaAnimation(0.0f, 1.0f);
        animAlpha2Transparent = new AlphaAnimation(1.0f, 0.0f);
        animScaleLarge2Normal = new ScaleAnimation(2, 1, 2, 1);
        animScaleNormal2Large = new ScaleAnimation(1, 2, 1, 2);
        animScaleZero2Normal = new ScaleAnimation(0, 1, 0, 1);
        animScaleNormal2Zero = new ScaleAnimation(1, 0, 1, 0);
    }

    public long getDuration() {
        return animDuration;
    }

    public void setDuration(long duration) {
        animDuration = duration;
    }

    public boolean feedKeyword(String keyword) {
        boolean result = false;
        if (vecKeywords.size() < MAX) {
            result = vecKeywords.add(keyword);
        }
        return result;
    }

    /** * 开始动画显示。<br/> * 之前已经存在的TextView将会显示退出动画。<br/> * * @return 正常显示动画返回true；反之为false。返回false原因如下：<br/> * 1.时间上不允许，受lastStartAnimationTime的制约；<br/> * 2.未获取到width和height的值。<br/> */
    public boolean go2Show(int animType) {
        if (System.currentTimeMillis() - lastStartAnimationTime > animDuration) {
            enableShow = true;
            if (animType == ANIMATION_IN) {
                txtAnimInType = OUTSIDE_TO_LOCATION;
                txtAnimOutType = LOCATION_TO_CENTER;
            } else if (animType == ANIMATION_OUT) {
                txtAnimInType = CENTER_TO_LOCATION;
                txtAnimOutType = LOCATION_TO_OUTSIDE;
            }
            disapper();
            boolean result = show();
            return result;
        }
        return false;
    }

    private void disapper() {
        int size = getChildCount();
        for (int i = size - 1; i >= 0; i--) {
            final TextView txt = (TextView) getChildAt(i);
            if (txt.getVisibility() == View.GONE) {
                removeView(txt);
                continue;
            }
            FrameLayout.LayoutParams layParams = (LayoutParams) txt
                    .getLayoutParams();
            // Log.d("ANDROID_LAB", txt.getText() + " leftM=" +
            // layParams.leftMargin + " topM=" + layParams.topMargin
            // + " width=" + txt.getWidth());
            int[] xy = new int[] { layParams.leftMargin, layParams.topMargin,
                    txt.getWidth() };
            AnimationSet animSet = getAnimationSet(xy, (width >> 1),
                    (height >> 1), txtAnimOutType);
            txt.startAnimation(animSet);
            animSet.setAnimationListener(new AnimationListener() {
                public void onAnimationStart(Animation animation) {
                }

                public void onAnimationRepeat(Animation animation) {
                }

                public void onAnimationEnd(Animation animation) {
                    txt.setOnClickListener(null);
                    txt.setClickable(false);
                    txt.setVisibility(View.GONE);
                }
            });
        }
    }

    private boolean show() {
        if (width > 0 && height > 0 && vecKeywords != null
                && vecKeywords.size() > 0 && enableShow) {
            enableShow = false;
            lastStartAnimationTime = System.currentTimeMillis();
            // 找到中心点
            int xCenter = width >> 1, yCenter = height >> 1;
            // 关键字的个数。
            int size = vecKeywords.size();
            int xItem = width / size, yItem = height / size;
            Log.d("ANDROID_LAB", "--------------------------width=" + width
                    + " height=" + height + " xItem=" + xItem + " yItem="
                    + yItem + "---------------------------");
            LinkedList<Integer> listX = new LinkedList<Integer>(), listY = new LinkedList<Integer>();
            for (int i = 0; i < size; i++) {
                // 准备随机候选数，分别对应x/y轴位置
                listX.add(i * xItem);
                listY.add(i * yItem + (yItem >> 2));
                Log.e("Search", "ListX:" + (i * xItem) + "#listY:"
                        + (i * yItem + (yItem >> 2)));
            }
            // TextView[] txtArr = new TextView[size];
            LinkedList<TextView> listTxtTop = new LinkedList<TextView>();
            LinkedList<TextView> listTxtBottom = new LinkedList<TextView>();
            for (int i = 0; i < size; i++) {
                String keyword = vecKeywords.get(i);
                // 随机颜色
                // int ranColor = 0xff000000 | random.nextInt(0x0077ffff);
                // 随机位置，糙值
                int xy[] = randomXY(random, listX, listY, xItem);
                // 随机字体大小
                int txtSize = TEXT_SIZE_MIN
                        + random.nextInt(TEXT_SIZE_MAX - TEXT_SIZE_MIN + 1);
                // 实例化TextView
                final TextView txt = new TextView(getContext());
                txt.setOnClickListener(itemClickListener);
                txt.setText(keyword);
                txt.setTextColor(Color.parseColor("#8cffffff"));
                txt.setTextSize(TypedValue.COMPLEX_UNIT_SP, txtSize);
                txt.setShadowLayer(1, 1, 1, 0xdd696969);
                txt.setGravity(Gravity.CENTER);

                // txt.setBackgroundColor(Color.RED);
                // 获取文本长度
                Paint paint = txt.getPaint();
                int strWidth = (int) Math.ceil(paint.measureText(keyword));
                xy[IDX_TXT_LENGTH] = strWidth;
                // 第一次修正:修正x坐标
                if (xy[IDX_X] + strWidth > width - (xItem >> 1)) {
                    int baseX = width - strWidth;
                    // 减少文本右边缘一样的概率
                    xy[IDX_X] = baseX - xItem + random.nextInt(xItem >> 1);
                } else if (xy[IDX_X] == 0) {
                    // 减少文本左边缘一样的概率
                    xy[IDX_X] = Math.max(random.nextInt(xItem), xItem / 3);
                }
                xy[IDX_DIS_Y] = Math.abs(xy[IDX_Y] - yCenter);
                txt.setTag(xy);
                if (xy[IDX_Y] > yCenter) {
                    listTxtBottom.add(txt);
                } else {
                    listTxtTop.add(txt);
                }
            }
            attach2Screen(listTxtTop, xCenter, yCenter, yItem);
            attach2Screen(listTxtBottom, xCenter, yCenter, yItem);
            return true;
        }
        return false;
    }

    /** 修正TextView的Y坐标将将其添加到容器上。 */
    private void attach2Screen(LinkedList<TextView> listTxt, int xCenter,
            int yCenter, int yItem) {
        int size = listTxt.size();
        sortXYList(listTxt, size);
        for (int i = 0; i < size; i++) {
            TextView txt = listTxt.get(i);
            int[] iXY = (int[]) txt.getTag();
            // Log.d("ANDROID_LAB", "fix[ " + txt.getText() + " ] x:" +
            // iXY[IDX_X] + " y:" + iXY[IDX_Y] + " r2="
            // + iXY[IDX_DIS_Y]);
            // 第二次修正:修正y坐标
            int yDistance = iXY[IDX_Y] - yCenter;
            // 对于最靠近中心点的，其值不会大于yItem
            // 对于可以一路下降到中心点的，则该值也是其应调整的大小
            int yMove = Math.abs(yDistance);
            inner: for (int k = i - 1; k >= 0; k--) {
                int[] kXY = (int[]) listTxt.get(k).getTag();
                int startX = kXY[IDX_X];
                int endX = startX + kXY[IDX_TXT_LENGTH];
                // y轴以中心点为分隔线，在同一侧
                if (yDistance * (kXY[IDX_Y] - yCenter) > 0) {
                    // Log.d("ANDROID_LAB", "compare:" +
                    // listTxt.get(k).getText());
                    if (isXMixed(startX, endX, iXY[IDX_X], iXY[IDX_X]
                            + iXY[IDX_TXT_LENGTH])) {
                        int tmpMove = Math.abs(iXY[IDX_Y] - kXY[IDX_Y]);
                        if (tmpMove > yItem) {
                            yMove = tmpMove;
                        } else if (yMove > 0) {
                            // 取消默认值。
                            yMove = 0;
                        }
                        // Log.d("ANDROID_LAB", "break");
                        break inner;
                    }
                }
            }
            // Log.d("ANDROID_LAB", txt.getText() + " yMove=" + yMove);
            if (yMove > yItem) {
                int maxMove = yMove - yItem;
                int randomMove = random.nextInt(maxMove);
                int realMove = Math.max(randomMove, maxMove >> 1) * yDistance
                        / Math.abs(yDistance);
                iXY[IDX_Y] = iXY[IDX_Y] - realMove;
                iXY[IDX_DIS_Y] = Math.abs(iXY[IDX_Y] - yCenter);
                // 已经调整过前i个需要再次排序
                sortXYList(listTxt, i + 1);
            }
            FrameLayout.LayoutParams layParams = new FrameLayout.LayoutParams(
                    FrameLayout.LayoutParams.WRAP_CONTENT,
                    FrameLayout.LayoutParams.WRAP_CONTENT);
            layParams.gravity = Gravity.LEFT | Gravity.TOP;
            layParams.leftMargin = iXY[IDX_X];
            layParams.topMargin = iXY[IDX_Y];
            addView(txt, layParams);
            // 动画
            AnimationSet animSet = getAnimationSet(iXY, xCenter, yCenter,
                    txtAnimInType);
            txt.startAnimation(animSet);
        }
    }

    public AnimationSet getAnimationSet(int[] xy, int xCenter, int yCenter,
            int type) {
        AnimationSet animSet = new AnimationSet(true);
        animSet.setInterpolator(interpolator);
        if (type == OUTSIDE_TO_LOCATION) {
            animSet.addAnimation(animAlpha2Opaque);
            animSet.addAnimation(animScaleLarge2Normal);
            TranslateAnimation translate = new TranslateAnimation((xy[IDX_X]
                    + (xy[IDX_TXT_LENGTH] >> 1) - xCenter) << 1, 0,
                    (xy[IDX_Y] - yCenter) << 1, 0);
            animSet.addAnimation(translate);
        } else if (type == LOCATION_TO_OUTSIDE) {
            animSet.addAnimation(animAlpha2Transparent);
            animSet.addAnimation(animScaleNormal2Large);
            TranslateAnimation translate = new TranslateAnimation(0, (xy[IDX_X]
                    + (xy[IDX_TXT_LENGTH] >> 1) - xCenter) << 1, 0,
                    (xy[IDX_Y] - yCenter) << 1);
            animSet.addAnimation(translate);
        } else if (type == LOCATION_TO_CENTER) {
            animSet.addAnimation(animAlpha2Transparent);
            animSet.addAnimation(animScaleNormal2Zero);
            TranslateAnimation translate = new TranslateAnimation(0,
                    (-xy[IDX_X] + xCenter), 0, (-xy[IDX_Y] + yCenter));
            animSet.addAnimation(translate);
        } else if (type == CENTER_TO_LOCATION) {
            animSet.addAnimation(animAlpha2Opaque);
            animSet.addAnimation(animScaleZero2Normal);
            TranslateAnimation translate = new TranslateAnimation(
                    (-xy[IDX_X] + xCenter), 0, (-xy[IDX_Y] + yCenter), 0);
            animSet.addAnimation(translate);
        }
        animSet.setDuration(animDuration);
        return animSet;
    }

    /** * 根据与中心点的距离由近到远进行冒泡排序。 * * @param endIdx * 起始位置。 * @param txtArr * 待排序的数组。 * */
    private void sortXYList(LinkedList<TextView> listTxt, int endIdx) {
        for (int i = 0; i < endIdx; i++) {
            for (int k = i + 1; k < endIdx; k++) {
                if (((int[]) listTxt.get(k).getTag())[IDX_DIS_Y] < ((int[]) listTxt
                        .get(i).getTag())[IDX_DIS_Y]) {
                    TextView iTmp = listTxt.get(i);
                    TextView kTmp = listTxt.get(k);
                    listTxt.set(i, kTmp);
                    listTxt.set(k, iTmp);
                }
            }
        }
    }

    /** A线段与B线段所代表的直线在X轴映射上是否有交集。 */
    private boolean isXMixed(int startA, int endA, int startB, int endB) {
        boolean result = false;
        if (startB >= startA && startB <= endA) {
            result = true;
        } else if (endB >= startA && endB <= endA) {
            result = true;
        } else if (startA >= startB && startA <= endB) {
            result = true;
        } else if (endA >= startB && endA <= endB) {
            result = true;
        }
        return result;
    }

    private int[] randomXY(Random ran, LinkedList<Integer> listX,
            LinkedList<Integer> listY, int xItem) {
        int[] arr = new int[4];
        arr[IDX_X] = listX.remove(ran.nextInt(listX.size()));
        arr[IDX_Y] = listY.remove(ran.nextInt(listY.size()));
        return arr;
    }

    public void onGlobalLayout() {
        int tmpW = getWidth();
        int tmpH = getHeight();
        if (width != tmpW || height != tmpH) {
            width = tmpW;
            height = tmpH;
            show();
        }
    }

    public Vector<String> getKeywords() {
        return vecKeywords;
    }

    public void rubKeywords() {
        vecKeywords.clear();
    }

    /** 直接清除所有的TextView。在清除之前不会显示动画。 */
    public void rubAllViews() {
        removeAllViews();
    }

    public void setOnItemClickListener(OnClickListener listener) {
        itemClickListener = listener;
    }

}

整个呈现效果还是满美观的，然后具体内容可以看源码，拿来就能用
源码地址：http://yunpan.cn/cdDvx3Zi9iA5m 访问密码 b1b7