shake phone and rearrange workspace apps

来源：互联网发布：农业大数据公司有哪些编辑：程序博客网时间：2024/05/21 19:24

新增功能，基本上国内手机产商都会加上的功能，其实主要做的就是桌面图标重新排列的算法。

Launcher.java继承SensorEventListener重写监听接口

@Overridepublic void onSensorChanged(SensorEvent event) {// TODO Auto-generated method stub        int sensorType = event.sensor.getType();          float[] values = event.values;         long vibrateTime = 200L;          if (sensorType == Sensor.TYPE_ACCELEROMETER)          {            int value = 15;            if ((Math.abs(values[0]) > value || Math.abs(values[1]) > value || Math                      .abs(values[2]) > value + 10))              {              if (mWorkspace.isInOverviewMode()){                if (CommonUtils.isFastDoubleClick()) {                                } else {            mWorkspace.rearrangeApps();            mVibrator.vibrate(vibrateTime);                             }            }            }          }  }

CommonUtils 这个类是防止连续触发用的

class CommonUtils {      private static long lastClickTime;      public static boolean isFastDoubleClick() {          long time = System.currentTimeMillis();                   long timeD = time - lastClickTime;         if ( 0 < timeD && timeD < 1000) {         return true;         }         lastClickTime = time;         return false;     }}

workspace.java

    public void rearrangeApps(){    int count = getChildCount();    for (int i=0 ; i<count ; i++ ){    long screenID = getScreenIdForPageIndex(i);    if (screenID == CUSTOM_CONTENT_SCREEN_ID){    continue;    }    if (i == 1){        CellLayout cl = (CellLayout)getChildAt(i);        cl.setUseTempCoords(false);        cl.rearrangeHomePage();    } else {        CellLayout cl = (CellLayout)getChildAt(i);        cl.setUseTempCoords(false);        cl.rearrangeAppItems();    }        }    }

CellLayout.java

    public void rearrangeAppItems(){    ArrayList<View> list = new ArrayList<View>();    ArrayList<String> blackList = new ArrayList<String>();    int neadReoderSize = getShortcutsAndWidgets().getChildCount();    for (int i=0; i<getShortcutsAndWidgets().getChildCount(); i++){    View tempView = getShortcutsAndWidgets().getChildAt(i);    list.add(tempView);    ItemInfo info = (ItemInfo) tempView.getTag();            if (info.spanX > 1 || info.spanY > 1){            neadReoderSize --;            for (int y=info.cellY; y<info.cellY+info.spanY; y++){            for (int x=info.cellX; x<info.cellX+info.spanX; x++){        int a = x + y*4;        blackList.add(a + "");        if (a < neadReoderSize) {        neadReoderSize ++;        }            }            }            }    }        for (int i=0; i<list.size(); i++){    ItemInfo info = (ItemInfo) list.get(i).getTag();            if (info.spanX > 1 || info.spanY > 1){            } else {                int oldPosition = info.cellX + info.cellY*4;                 if (oldPosition < neadReoderSize ) {                blackList.add(oldPosition + "");                info.neadReoder = false;                } else {                info.neadReoder = true;                }            }    }    //    getShortcutsAndWidgets().removeAllViews();        int position = 0;        int newX, newY, rank;        rank = 0;        InvariantDeviceProfile grid = LauncherAppState.getInstance().getInvariantDeviceProfile();        for (int i=0; i<list.size(); i++){        View v = list.get(i);        if (v != null){//        CellLayout.LayoutParams lp = (CellLayout.LayoutParams) v.getLayoutParams();                        newX = position % grid.numColumns;                newY = position / grid.numColumns;                ItemInfo info = (ItemInfo) v.getTag();                if (blackList != null){                while(blackList.contains(position + "")){                newX ++;                        rank ++;                        position++;                if (newX > 3){                newY++;                newX = 0;                }                }                }                                                if (info.cellX != newX || info.cellY != newY || info.rank != rank) {                if (info.spanX == 1 && info.spanY == 1 & info.neadReoder ){                        info.cellX = newX;                        info.cellY = newY;                        info.rank = rank;                                        if (animateChildToPosition(v, info.cellX, info.cellY, REORDER_ANIMATION_DURATION, 0, true, true)){                    Log.d("txk", "info.title=" + info.title + "; info.cellX=" + info.cellX + "; info.cellY=" + info.cellY + ";newX=" + newX + ";newY=" + newY);                    LauncherModel.modifyItemInDatabase(getContext(), info,                                info.container, info.screenId, info.cellX, info.cellY, info.spanX, info.spanY);                    }                } else {                        rank --;                        position --;                }                }        }            rank ++;            position++;        }    }        public void rearrangeHomePage(){    ArrayList<View> list = new ArrayList<View>();    ArrayList<String> blackList = new ArrayList<String>();    int neadReoderSize = 20 - getShortcutsAndWidgets().getChildCount();    for (int i=0; i<getShortcutsAndWidgets().getChildCount(); i++){    View tempView = getShortcutsAndWidgets().getChildAt(i);    list.add(tempView);    ItemInfo info = (ItemInfo) tempView.getTag();            if (info.spanX > 1 || info.spanY > 1){            neadReoderSize ++;            for (int y=info.cellY; y<info.cellY+info.spanY; y++){            for (int x=info.cellX; x<info.cellX+info.spanX; x++){            int a = x + y*4;            blackList.add(a + "");            if (a > neadReoderSize) {            neadReoderSize --;            }            }            }            }    }        for (int i=0; i<list.size(); i++){    ItemInfo info = (ItemInfo) list.get(i).getTag();            if (info.spanX > 1 || info.spanY > 1){            } else {                int oldPosition = info.cellX + info.cellY*4;                 if (oldPosition > neadReoderSize ) {                blackList.add(oldPosition + "");                info.neadReoder = false;                } else {                info.neadReoder = true;                }            }    }//    getShortcutsAndWidgets().removeAllViews();        InvariantDeviceProfile grid = LauncherAppState.getInstance().getInvariantDeviceProfile();        int position = grid.numRows * grid.numColumns - 1;        int newX, newY, rank;        rank = grid.numRows * grid.numColumns - 1;        for (int i=0; i<list.size(); i++){        View v = list.get(i);        if (v != null){//        CellLayout.LayoutParams lp = (CellLayout.LayoutParams) v.getLayoutParams();                newX = position % grid.numColumns;                newY = position / grid.numColumns;                ItemInfo info = (ItemInfo) v.getTag();                if (blackList != null){                while(blackList.contains(position + "")){                newX --;                        rank --;                        position --;                if (newX < 0 ){                newY--;                newX = 3;                }                }                }                                if (info.cellX != newX || info.cellY != newY || info.rank != rank) {                                   if (info.spanX == 1 && info.spanY == 1 & info.neadReoder ){                info.cellX = newX;                    info.cellY = newY;                    info.rank = rank;                    if (animateChildToPosition(v, info.cellX, info.cellY, REORDER_ANIMATION_DURATION, 0, true, true)){                    LauncherModel.modifyItemInDatabase(getContext(), info,                                info.container, info.screenId, info.cellX, info.cellY, info.spanX, info.spanY);                    }                } else {                        rank ++;                        position ++;                }                }        }            rank --;            position--;        }    }

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