這個適合用於選擇 用戶的一些興趣標簽,個性名片等。 用於將控制項 設置為圓形 的自定義TextView 自定義佈局 用於動態生成多個 控制項 核心類 ...
這個適合用於選擇 用戶的一些興趣標簽,個性名片等。
package com.dyl.cloudtags; import java.util.ArrayList; import java.util.Arrays; import java.util.Random; import android.app.Activity; import android.content.SharedPreferences; import android.os.Bundle; import android.view.View; import android.view.View.OnClickListener; import android.widget.EditText; import android.widget.ImageView; import android.widget.TextView; import android.widget.Toast; public class MainActivity extends Activity { private KeywordsFlow keywordsFlow; private String[] keywords; public static final String SEARCH_HISTORY = "search_history"; private ArrayList<SearchDataPojo> searchItem; private String longhistory; private SharedPreferences sp; private ArrayList<String> history; private EditText world_shopping_search_input; private TextView world_city_refresh, clear_history; private ImageView toSearch; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); initView(); initSearchHistory(); refreshTags(); } private void initView() { world_shopping_search_input = (EditText) findViewById(R.id.world_shopping_search_input); keywordsFlow = (KeywordsFlow) findViewById(R.id.keywordsflow); world_city_refresh = (TextView) findViewById(R.id.world_city_refresh); world_city_refresh.setOnClickListener(new OnClickListener() { @Override public void onClick(View arg0) { refreshTags(); } }); clear_history = (TextView) findViewById(R.id.clear_history); clear_history.setOnClickListener(new OnClickListener() { @Override public void onClick(View arg0) { clearSearchHistory(); } }); toSearch = (ImageView) findViewById(R.id.toSearch); toSearch.setOnClickListener(new OnClickListener() { @Override public void onClick(View arg0) { saveSearchHistory(); refreshTags(); } }); } private void refreshTags() { initSearchHistory(); keywordsFlow.setDuration(800l); keywordsFlow.setOnItemClickListener(new OnClickListener() { @Override public void onClick(View v) { String keyword = ((TextView) v).getText().toString();// 獲得點擊的標簽 world_shopping_search_input.setText(keyword); } }); // 添加 feedKeywordsFlow(keywordsFlow, keywords); keywordsFlow.go2Show(KeywordsFlow.ANIMATION_IN); } 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); } } /** * 讀取歷史搜索記錄 */ private void initSearchHistory() { sp = getSharedPreferences(MainActivity.SEARCH_HISTORY, 0); longhistory = sp.getString(MainActivity.SEARCH_HISTORY, ""); if (!longhistory.equals("")) { keywords = longhistory.split(","); searchItem = new ArrayList<SearchDataPojo>(); for (int i = 0; i < keywords.length; i++) { searchItem.add(new SearchDataPojo().setContent(keywords[i])); } } else {// 如果SharedPreferences沒有值得話,就顯示預設的數據 keywords = new String[] { "口味蝦", "牛蛙", "火鍋", "真功夫", "料理", "密室逃", "天成房", "波比艾" }; } } /* * 保存搜索記錄 */ private void saveSearchHistory() { String text = world_shopping_search_input.getText().toString().trim(); Toast.makeText(this, text, Toast.LENGTH_LONG).show(); if (!text.equals("") && text != null) { if (text.length() < 1) { return; } sp = getSharedPreferences(SEARCH_HISTORY, 0); String longhistory = sp.getString(SEARCH_HISTORY, ""); String[] tmpHistory = longhistory.split(","); history = new ArrayList<String>(Arrays.asList(tmpHistory)); if (history.size() > 0) { int i; for (i = 0; i < history.size(); i++) { if (text.equals(history.get(i))) { history.remove(i); break; } } history.add(0, text); } if (history.size() > 0) { StringBuilder sb = new StringBuilder(); for (int i = 0; i < history.size(); i++) { sb.append(history.get(i) + ","); } sp.edit().putString(SEARCH_HISTORY, sb.toString()).commit(); } else { sp.edit().putString(SEARCH_HISTORY, text + ",").commit(); } clear_history.setVisibility(View.VISIBLE); } } // 清除歷史數據 private void clearSearchHistory() { searchItem.removeAll(searchItem); sp.edit().clear().commit(); Toast.makeText(this, "清除歷史記錄", Toast.LENGTH_LONG).show(); } }
用於將控制項 設置為圓形 的自定義TextView
package com.dyl.cloudtags; import android.content.Context; import android.graphics.Canvas; import android.graphics.Color; import android.graphics.Paint; import android.graphics.PaintFlagsDrawFilter; import android.util.AttributeSet; import android.widget.TextView; public class CircleView extends TextView { private Paint mBgPaint = new Paint(); PaintFlagsDrawFilter pfd = new PaintFlagsDrawFilter(0, Paint.ANTI_ALIAS_FLAG|Paint.FILTER_BITMAP_FLAG); public CircleView(Context context, AttributeSet attrs, int defStyle) { super(context, attrs, defStyle); // TODO Auto-generated constructor stub } public CircleView(Context context, AttributeSet attrs) { super(context, attrs); // TODO Auto-generated constructor stub mBgPaint.setColor(Color.WHITE); mBgPaint.setAntiAlias(true); } public CircleView(Context context) { super(context); // TODO Auto-generated constructor stub mBgPaint.setColor(Color.WHITE); mBgPaint.setAntiAlias(true); } @Override protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { // TODO Auto-generated method stub super.onMeasure(widthMeasureSpec, heightMeasureSpec); int measuredWidth = getMeasuredWidth(); int measuredHeight = getMeasuredHeight(); int max = Math.max(measuredWidth, measuredHeight); setMeasuredDimension(max, max); } @Override public void setBackgroundColor(int color) { // TODO Auto-generated method stub mBgPaint.setColor(color); } /** * 設置通知個數顯示 * @param text */ public void setNotifiText(int text){ // if(text>99){ // String string = 99+"+"; // setText(string); // return; // } setText(text+""); } @Override public void draw(Canvas canvas) { // TODO Auto-generated method stub canvas.setDrawFilter(pfd); canvas.drawCircle(getWidth()/2, getHeight()/2, Math.max(getWidth(), getHeight())/2, mBgPaint); super.draw(canvas); } }
自定義佈局 用於動態生成多個 控制項 核心類
package com.dyl.cloudtags; import java.util.LinkedList; import java.util.Random; import java.util.Vector; import android.content.Context; import android.graphics.Color; import android.graphics.Paint; import android.graphics.drawable.GradientDrawable; import android.util.AttributeSet; import android.view.Gravity; import android.view.LayoutInflater; import android.view.View; import android.view.ViewTreeObserver.OnGlobalLayoutListener; import android.view.animation.AlphaAnimation; import android.view.animation.Animation; import android.view.animation.Animation.AnimationListener; import android.view.animation.AnimationSet; import android.view.animation.AnimationUtils; import android.view.animation.Interpolator; import android.view.animation.ScaleAnimation; import android.view.animation.TranslateAnimation; import android.widget.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; /** 由外至內的動畫。 */ public static final int ANIMATION_IN = 1; /** 由內至外的動畫。 */ public static final int ANIMATION_OUT = 2; /** 位移動畫類型:從外圍移動到坐標點。 */ public static final int OUTSIDE_TO_LOCATION = 1; /** 位移動畫類型:從坐標點移動到外圍。 */ public static final int LOCATION_TO_OUTSIDE = 2; /** 位移動畫類型:從中心點移動到坐標點。 */ public static final int CENTER_TO_LOCATION = 3; /** 位移動畫類型:從坐標點移動到中心點。 */ public static final int LOCATION_TO_CENTER = 4; public static final long ANIM_DURATION = 800l; public static final int MAX = 12; public static final int TEXT_SIZE_MAX = 20; public static final int TEXT_SIZE_MIN = 10; private OnClickListener itemClickListener; private static Interpolator interpolator; private static AlphaAnimation animAlpha2Opaque; private static AlphaAnimation animAlpha2Transparent; private static ScaleAnimation animScaleLarge2Normal, animScaleNormal2Large, animScaleZero2Normal, animScaleNormal2Zero; /** 存儲顯示的關鍵字。 */ private Vector<String> vecKeywords; private int width, height; /** * go2Show()中被賦值為true,標識開發人員觸發其開始動畫顯示。<br/> * 本標識的作用是防止在填充keywrods未完成的過程中獲取到width和height後提前啟動動畫。<br/> * 在show()方法中其被賦值為false。<br/> * 真正能夠動畫顯示的另一必要條件:width 和 height不為0。<br/> */ private boolean enableShow; private Random random; private int txtAnimInType, txtAnimOutType; /** 最近一次啟動動畫顯示的時間。 */ private long lastStartAnimationTime; /** 動畫運行時間。 */ private long animDuration; private Context context; public KeywordsFlow(Context context) { super(context); init(); } public KeywordsFlow(Context context, AttributeSet attrs) { super(context, attrs); init(); } public KeywordsFlow(Context context, AttributeSet attrs, int defStyle) { super(context, attrs, defStyle); 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; } /** * 開始動畫顯示。<br/> * 之前已經存在的TextView將會顯示退出動畫。<br/> * * @return 正常顯示動畫返回true;反之為false。返回false原因如下:<br/> * 1.時間上不允許,受lastStartAnimationTime的制約;<br/> * 2.未獲取到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 CircleView txv = (CircleView) getChildAt(i); if (txv.getVisibility() == View.GONE) { removeView(txv); continue; } FrameLayout.LayoutParams layParams = (LayoutParams) txv .getLayoutParams(); int[] xy = new int[] { layParams.leftMargin, layParams.topMargin, txv.getWidth() }; AnimationSet animSet = getAnimationSet(xy, (width >> 1), (height >> 1), txtAnimOutType); txv.startAnimation(animSet); animSet.setAnimationListener(new AnimationListener() { public void onAnimationStart(Animation animation) { } public void onAnimationRepeat(Animation animation) { } public void onAnimationEnd(Animation animation) { txv.setOnClickListener(null); txv.setClickable(false); txv.setVisibility(View.GONE); } }); } } private boolean show() { if (width > 0 && height > 0 && vecKeywords != null && vecKeywords.size() > 0 && enableShow) { enableShow = false; lastStartAnimationTime = System.currentTimeMillis(); int xCenter = width >> 1, yCenter = height >> 1; int size = vecKeywords.size(); int xItem = width / size, yItem = height / size; LinkedList<Integer> listX = new LinkedList<Integer>(), listY = new LinkedList<Integer>(); for (int i = 0; i < size; i++) { // 準備隨機候選數,分別對應x/y軸位置 listX.add(i * xItem); listY.add(i * yItem + (yItem >> 2)); } LinkedList<CircleView> listTxtTop = new LinkedList<CircleView>(); LinkedList<CircleView> listTxtBottom = new LinkedList<CircleView>(); for (int i = 0; i < size; i++) { String keyword = vecKeywords.get(i); // 隨機位置,糙值 int xy[] = randomXY(random, listX, listY, xItem); // 實例化TextView final CircleView txv = new CircleView(getContext()); txv.setBackgroundResource(R.drawable.text_view_border); txv.setGravity(Gravity.CENTER); txv.setOnClickListener(itemClickListener); txv.setText(keyword); txv.setTextColor(Color.WHITE); txv.setPadding(8, 6, 8, 6); txv.setSingleLine(true); int r = random.nextInt(256); int g= random.nextInt(256); int b = random.nextInt(256); int mColor = Color.rgb(r, g, b); GradientDrawable myGrad = (GradientDrawable)txv.getBackground(); myGrad.setColor(mColor); // txv.setBackgroundColor(mColor); // 獲取文本長度 Paint paint = txv.getPaint(); int strWidth = (int) Math.ceil(paint.measureText(keyword)); xy[IDX_TXT_LENGTH] = strWidth; // 第一次修正:修正x坐標 if (xy[IDX_X] + strWidth > width - (xItem >> 1)) { int baseX = width - strWidth; // 減少文本右邊緣一樣的概率 xy[IDX_X] = baseX - xItem + random.nextInt(xItem >> 1); } else if (xy[IDX_X] == 0) { // 減少文本左邊緣一樣的概率 xy[IDX_X] = Math.max(random.nextInt(xItem), xItem / 3); } xy[IDX_DIS_Y] = Math.abs(xy[IDX_Y] - yCenter); txv.setTag(xy); if (xy[IDX_Y] > yCenter) { listTxtBottom.add(txv); } else { listTxtTop.add(txv); } } attach2Screen(listTxtTop, xCenter, yCenter, yItem); attach2Screen(listTxtBottom, xCenter, yCenter, yItem); return true; } return false; } /** 修正TextView的Y坐標將將其添加到容器上。 */ private void attach2Screen(LinkedList<CircleView> listTxt, int xCenter, int yCenter, int yItem) { int size = listTxt.size(); sortXYList(listTxt, size); for (int i = 0; i < size; i++) { CircleView txv = listTxt.get(i); int[] iXY = (int[]) txv.getTag(); // 第二次修正:修正y坐標 int yDistance = iXY[IDX_Y] - yCenter; // 對於最靠近中心點的,其值不會大於yItem<br/> // 對於可以一路下降到中心點的,則該值也是其應調整的大小<br/> 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軸以中心點為分隔線,在同一側 if (yDistance * (kXY[IDX_Y] - yCenter) > 0) { 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) { // 取消預設值。 yMove = 0; } break inner; } } } 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); // 已經調整過前i個需要再次排序 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(txv, layParams); // 動畫 AnimationSet animSet = getAnimationSet(iXY, xCenter, yCenter, txtAnimInType); txv.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; } /** * 根據與中心點的距離由近到遠進行冒泡排序。 * * @param endIdx * 起始位置。 * @param txtArr * 待排序的數組。 * */ private void sortXYList(LinkedList<CircleView> 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]) { CircleView iTmp = listTxt.get(i); CircleView kTmp = listTxt.get(k); listTxt.set(i, kTmp); listTxt.set(k, iTmp); } } } } /** A線段與B線段所代表的直線在X軸映射上是否有交集。 */ 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; } //得到隨機坐標 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() { &nb