好的，我有两种快速的排序方法。当您第一次单击``排序''按钮时，这些值将按递减顺序排序。再次按下-值将按递增顺序排序。
“重置”按钮刷新页面。
如果单击小于或等于30的值，则会在表中生成新值;如果单击大于30的值，则会弹出错误。
我想在单击“排序”按钮后将动画添加到flex表中。怎么做？ 我的代码：
package com.fullstackjava.client;
import com.google.gwt.core.client.EntryPoint;
import com.google.gwt.event.dom.client.*;
import com.google.gwt.user.client.Window;
import com.google.gwt.user.client.ui.*;
import java.util.Arrays;
public class Demo implements EntryPoint {
private final VerticalPanel VERTICAL_PANEL_OF = new VerticalPanel();
private final Button BUTTON = new Button("Enter");
private final TextBox TEXT_BOX = new TextBox();
private int[] currentArrOfNumber;
private HorizontalPanel horizontalPanelNew = new HorizontalPanel();
private FlexTable flexTableNew = new FlexTable();
private VerticalPanel verticalPanelOfSortNew = new VerticalPanel();
final Button SORT = new Button("Sort");
final Button RESET = new Button("Reset");
public Demo() {
}
public void onModuleLoad() {
joinField();
RootPanel.get("block").add(VERTICAL_PANEL_OF);
TEXT_BOX.setFocus(true);
enterNumber();
setStyles();
}
private void joinField() {
VERTICAL_PANEL_OF.add(TEXT_BOX);
VERTICAL_PANEL_OF.add(BUTTON);
joinSortTable();
}
public void enterNumber() {
BUTTON.addClickHandler(new ClickHandler() {
@Override
public void onClick(ClickEvent clickEvent) {
generateNumbers();
}
});
TEXT_BOX.addKeyDownHandler(new KeyDownHandler() {
@Override
public void onKeyDown(KeyDownEvent keyDownEvent) {
if (keyDownEvent.getNativeKeyCode() == KeyCodes.KEY_ENTER) generateNumbers();
}
});
}
public void generateNumbers() {
final String numbers = TEXT_BOX.getText().trim();
if (!numbers.matches("^\\d+$")) {
Window.alert("'" + numbers + "' isn't right. Enter number from 1 till 1000.");
TEXT_BOX.selectAll();
return;
}
randomNumbers(numbers);
TEXT_BOX.setText("");
}
private void randomNumbers(String numbers) {
int count = Integer.parseInt(numbers);
int[] arrOfNumber = new int[count];
if (flexTableNew.isAttached()) {
flexTableNew.clear();
}
for (int i = 0; i < arrOfNumber.length; i++) {
arrOfNumber[i] = (int) (Math.random() * 1000);
}
boolean smallValue = false;
for (int i = 0; i < arrOfNumber.length; i++) {
if (arrOfNumber[i] <= 30) {
smallValue = true;
break;
}
}
if (!smallValue) arrOfNumber[(int) (Math.random() * (arrOfNumber.length - 1))] = (int) (Math.random() * 30);
currentArrOfNumber = Arrays.copyOf(arrOfNumber, arrOfNumber.length);
generateTableOfNumbers();
RootPanel.get("block").clear();
RootPanel.get("block").add(horizontalPanelNew);
}
private void generateTableOfNumbers() {
putValueIntoTable();
sort();
reset();
}
private void joinSortTable() {
verticalPanelOfSortNew.add(SORT);
verticalPanelOfSortNew.add(RESET);
horizontalPanelNew.add(flexTableNew);
horizontalPanelNew.add(verticalPanelOfSortNew);
}
public boolean check = false;
public int cell = 0;
public void sort() {
flexTableNew.addClickHandler(new ClickHandler() {
@Override
public void onClick(ClickEvent clickEvent) {
HTMLTable.Cell src = flexTableNew.getCellForEvent(clickEvent);
int rowIndex = src.getRowIndex();
int columnIndex = src.getCellIndex();
int lengthForArray = columnIndex == 0 ? columnIndex : columnIndex * 10;
cell = rowIndex + lengthForArray;
int number = Integer.parseInt(flexTableNew.getCellFormatter().getElement(rowIndex, columnIndex).getInnerHTML());
if (number <= 30) {
reGenerate(currentArrOfNumber.length);
}
else Window.alert("Please select a value smaller or equal to 30.");
}
});
SORT.addClickHandler(new ClickHandler() {
@Override
public void onClick(ClickEvent clickEvent) {
if (!check) {
recursiveDecreasing(currentArrOfNumber, 0, currentArrOfNumber.length - 1);
check = true;
} else {
recursiveIncreasing(currentArrOfNumber, 0, currentArrOfNumber.length - 1);
check = false;
}
putValueIntoTable();
}
});
}
private void reGenerate(int count) {
int[] reArrOfNumber = new int[count];
if (flexTableNew.isAttached()) {
flexTableNew.clear();
}
for (int i = 0; i < reArrOfNumber.length; i++) {
reArrOfNumber[i] = (int) (Math.random() * 1000);
}
boolean smallValue = false;
for (int i = 0; i < reArrOfNumber.length; i++) {
if (reArrOfNumber[i] <= 30) {
smallValue = true;
break;
}
}
if (!smallValue) reArrOfNumber[(int) (Math.random() * (reArrOfNumber.length - 1))] = (int) (Math.random() * 30);
currentArrOfNumber = Arrays.copyOf(reArrOfNumber, reArrOfNumber.length);
putValueIntoTable();
}
public int decreasingSort(int arr[], int left, int right) {
int pivot = arr[left];
int i = left;
for (int j = left + 1; j <= right; j++) {
if (arr[j] > pivot) {
i = i + 1;
int temp = arr[i];
arr[i] = arr[j];
arr[j] = temp;
}
}
int temp = arr[i];
arr[i] = arr[left];
arr[left] = temp;
return i;
}
public void recursiveDecreasing(int arr[], int left, int right) {
if (left < right) {
int q = decreasingSort(arr, left, right);
recursiveDecreasing(arr, left, q);
recursiveDecreasing(arr, q + 1, right);
}
}
public static int increasingSort(int[] arr, int left, int right) {
int pivot = arr[right];
for (int i = left; i < right; i++) {
if (arr[i] < pivot) {
int temp = arr[left];
arr[left] = arr[i];
arr[i] = temp;
left++;
}
}
int temp = arr[left];
arr[left] = pivot;
arr[right] = temp;
return left;
}
public static void recursiveIncreasing(int[] arr, int left, int right) {
int partition = increasingSort(arr, left, right);
if (partition - 1 > left) {
recursiveIncreasing(arr, left, partition - 1);
}
if (partition + 1 < right) {
recursiveIncreasing(arr, partition + 1, right);
}
}
private void putValueIntoTable() {
int valueOfStrings = 10;
int row = 0;
int column = 0;
for (int i = 0; i < currentArrOfNumber.length; i++) {
if (row >= valueOfStrings) {
row = 0;
column++;
flexTableNew.setText(row, column, String.valueOf(currentArrOfNumber[i]));
}
flexTableNew.setText(row, column, String.valueOf(currentArrOfNumber[i]));
row++;
}
}
private void reset() {
RESET.addClickHandler(new ClickHandler() {
@Override
public void onClick(ClickEvent clickEvent) {
Window.Location.reload();
}
});
}
public void setStyles() {
TEXT_BOX.setStyleName("block__text-box");
BUTTON.setStyleName("block__button");
verticalPanelOfSortNew.setStyleName("block__sort-v");
flexTableNew.setStyleName("block__sort_flex");
}
}