Android 用のゲーム プロジェクトの作成を開始し、2 つのアクティビティ (mainactivity と Pvsp) を作成し、前に説明したすべてのアクティビティをマニフェストに追加しました。しかし、logcatは私にこのようなエラーを与えます
11-08 15:50:10.339: E/Trace(6221): error opening trace file: No such file or directory (2)
11-08 15:50:10.339: V/ActivityThread(6221): com.rhas.skripsiletsgo white listed for hwui
11-08 15:50:14.339: D/dalvikvm(6221): newInstance failed: no <init>()
11-08 15:50:14.349: D/AndroidRuntime(6221): Shutting down VM
11-08 15:50:14.359: W/dalvikvm(6221): threadid=1: thread exiting with uncaught exception (group=0x40a8e930)
11-08 15:50:14.389: E/AndroidRuntime(6221): FATAL EXCEPTION: main
11-08 15:50:14.389: E/AndroidRuntime(6221): java.lang.RuntimeException: Unable to instantiate activity ComponentInfo{com.rhas.skripsiletsgo/com.rhas.skripsiletsgo.Pvsp}: java.lang.InstantiationException: can't instantiate class com.rhas.skripsiletsgo.Pvsp; no empty constructor
11-08 15:50:14.389: E/AndroidRuntime(6221): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2223)
11-08 15:50:14.389: E/AndroidRuntime(6221): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2357)
11-08 15:50:14.389: E/AndroidRuntime(6221): at android.app.ActivityThread.access$600(ActivityThread.java:153)
11-08 15:50:14.389: E/AndroidRuntime(6221): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1247)
11-08 15:50:14.389: E/AndroidRuntime(6221): at android.os.Handler.dispatchMessage(Handler.java:99)
11-08 15:50:14.389: E/AndroidRuntime(6221): at android.os.Looper.loop(Looper.java:137)
11-08 15:50:14.389: E/AndroidRuntime(6221): at android.app.ActivityThread.main(ActivityThread.java:5259)
11-08 15:50:14.389: E/AndroidRuntime(6221): at java.lang.reflect.Method.invokeNative(Native Method)
11-08 15:50:14.389: E/AndroidRuntime(6221): at java.lang.reflect.Method.invoke(Method.java:511)
11-08 15:50:14.389: E/AndroidRuntime(6221): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:795)
11-08 15:50:14.389: E/AndroidRuntime(6221): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:562)
11-08 15:50:14.389: E/AndroidRuntime(6221): at dalvik.system.NativeStart.main(Native Method)
11-08 15:50:14.389: E/AndroidRuntime(6221): Caused by: java.lang.InstantiationException: can't instantiate class com.rhas.skripsiletsgo.Pvsp; no empty constructor
11-08 15:50:14.389: E/AndroidRuntime(6221): at java.lang.Class.newInstanceImpl(Native Method)
11-08 15:50:14.389: E/AndroidRuntime(6221): at java.lang.Class.newInstance(Class.java:1319)
11-08 15:50:14.389: E/AndroidRuntime(6221): at android.app.Instrumentation.newActivity(Instrumentation.java:1054)
11-08 15:50:14.389: E/AndroidRuntime(6221): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2214)
11-08 15:50:14.389: E/AndroidRuntime(6221): ... 11 more
11-08 15:50:16.099: I/Process(6221): Sending signal. PID: 6221 SIG: 9
次に、ここに私のマニフェストがあります
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.rhas.skripsiletsgo"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk
android:minSdkVersion="8"
android:targetSdkVersion="10" />
<application
android:allowBackup="true"
android:icon="@drawable/ic_launcher"
android:label="@string/app_name"
android:theme="@style/AppTheme" >
<activity
android:name="com.rhas.skripsiletsgo.MainActivity"
android:label="@string/app_name" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity
android:name="com.rhas.skripsiletsgo.Pvsp"
android:label="@string/app_name">
</activity>
</application>
</manifest>
ここに私のプロジェクトがあります。編集、分析などはお気軽にどうぞ。英語が下手で申し訳ありません。すべてのヘルプ/コメントをお待ちしております。
編集：ここにPvspクラスがあります
package com.rhas.skripsiletsgo;
import static com.rhas.skripsiletsgo.core.StoneColor.BLACK;
import java.util.HashSet;
import java.util.Set;
import java.util.Timer;
import java.util.TimerTask;
import com.rhas.skripsiletsgo.StoneDrawable;
import com.rhas.skripsiletsgo.core.KoRuleException;
import com.rhas.skripsiletsgo.core.NoLibertiesException;
import com.rhas.skripsiletsgo.core.SpaceTakenException;
import com.rhas.skripsiletsgo.core.Game;
import com.rhas.skripsiletsgo.core.GameState;
import com.rhas.skripsiletsgo.core.Stone;
import android.content.Context;
import android.graphics.Canvas;
import android.graphics.Rect;
import android.util.AttributeSet;
import android.view.MotionEvent;
import android.view.ViewGroup;
import android.widget.Toast;
public class Pvsp extends ViewGroup{
public Pvsp(Context context, AttributeSet attrs) {
super(context, attrs);
setKeepScreenOn(true);
stones = new Stone[game.getTableSize()][game.getTableSize()];
blackStoneDrawable = new StoneDrawable.Black();
whiteStoneDrawable = new StoneDrawable.White();
gridDrawable = new GridDrawable(game.getTableSize());
setGameState(game.getLastState());
game.addListener(new GameListener());
}
static final int MAX_DRAWN_CAPTURED_STONES = 16;
final static int PADDING = 3;
final GridDrawable gridDrawable;
final Rect rect = new Rect();
final Stone[][] stones;
StoneDrawable blackStoneDrawable;
StoneDrawable whiteStoneDrawable;
long lastTouchMove = -1;
Game game;
GameState gameState;
int cellSize;
private boolean skipNextTouchUp;
void setGameState(GameState state){
if(gameState != null){
Set<Stone> prevStones = gameState.getStones();
Set<Stone> newStones = state.getStones();
Set<Stone> prevStonesM = new HashSet<Stone>(prevStones);
Set<Stone> newStonesM = new HashSet<Stone>(newStones);
prevStonesM.removeAll(newStones);
for(Stone stone : prevStonesM){
stones[stone.getRow()][stone.getCol()] = null;
}
newStonesM.removeAll(prevStones);
for(Stone stone : newStonesM){
stones[stone.getRow()][stone.getCol()] = stone;
}
invalidate();
}
gameState = state;
}
private int getX(int row){
int l = rect.left + cellSize / 2 + PADDING;
int r = rect.right - cellSize / 2 - PADDING;
return getCoord(row, l, r);
}
private int getY(int col){
int t = rect.top + cellSize / 2 + PADDING;
int b = rect.bottom + cellSize / 2 - PADDING;
return getCoord(col, t, b);
}
private int getCoord(int i, int min, int max){
return min + (max - min) * i / (game.getTableSize() - 1);
}
private int getRow(float y){
return Math.round(0.5f + (y - PADDING) / (rect.bottom - rect.top - 2*PADDING) * game.getTableSize() - 1);
}
private int getCol(float x){
return Math.round(0.5f + (x - PADDING) / (rect.right - rect.left - 2*PADDING) * game.getTableSize() - 1);
}
protected void onDraw(Canvas canvas){
super.onDraw(canvas);
canvas.save();
int p = PADDING + cellSize / 2;
canvas.clipRect(p, p, rect.width() - p, rect.height() - p);
gridDrawable.draw(canvas);
canvas.restore();
drawStones(canvas);
drawCapturedStones(canvas);
drawWhoseTurn(canvas);
}
private void drawStones(Canvas canvas) {
// TODO Auto-generated method stub
for(int i = 0; i < stones.length; i++){
for(int j = 0; j < stones[i].length; j++){
Stone stone = stones[i][j];
if(stone == null) continue;
int x = getX(stone.getCol());
int y = getY(stone.getRow());
canvas.save();
canvas.translate(x - cellSize / 2, y - cellSize / 2);
if(stone.getColor() == BLACK){
blackStoneDrawable.draw(canvas);
}else{
whiteStoneDrawable.draw(canvas);
}
canvas.restore();
}
}
}
private void drawCapturedStones(Canvas canvas) {
// TODO Auto-generated method stub
int dx = PADDING + cellSize / 2;
int dy = rect.height() + cellSize;
canvas.save();
canvas.translate(dx, dy);
drawCapturedStones(canvas, gameState.getBlacksCaptured(), blackStoneDrawable, false);
canvas.restore();
canvas.save();
canvas.translate(canvas.getWidth() - dx - cellSize, dy);
drawCapturedStones(canvas, gameState.getWhitesCaptured(), whiteStoneDrawable, true);
canvas.restore();
}
private void drawCapturedStones(Canvas canvas, int count, StoneDrawable drawable, boolean flip){
if(count > MAX_DRAWN_CAPTURED_STONES){
count = MAX_DRAWN_CAPTURED_STONES;
}
for(int i = 0; i < count; i++){
int rowCol = Util.getCapturedRowCol(i);
int row = (rowCol / 1000);
int col = rowCol % 1000;
if(flip){
col = -col;
}
canvas.save();
int x = col * cellSize;
int y = row * cellSize;
canvas.translate(x, y);
drawable.draw(canvas);
canvas.restore();
}
}
private void drawWhoseTurn(Canvas canvas) {
// TODO Auto-generated method stub
int dx = 5 * cellSize + cellSize / 2 + PADDING;
int dy = rect.height();
canvas.save();
StoneDrawable drawable;
if (gameState.getWhoseTurn() == BLACK) {
// Flip horizontally.
canvas.translate(rect.width() - dx - 2 * cellSize, dy);
drawable = blackStoneDrawable;
} else {
canvas.translate(dx, dy);
drawable = whiteStoneDrawable;
}
int oldSize = drawable.getSize();
drawable.setSize(2 * cellSize);
drawable.draw(canvas);
drawable.setSize(oldSize);
canvas.restore();
}
@Override
protected void onLayout(boolean changed, int l, int t, int r, int b) {
// TODO Auto-generated method stub
if (!changed) return;
rect.left = l;
rect.top = t;
rect.right = Math.min(r, b);
rect.bottom = Math.min(r, b);
cellSize = (rect.width() - 2 * PADDING) / game.getTableSize();
blackStoneDrawable.setSize(cellSize);
whiteStoneDrawable.setSize(cellSize);
}
void skipNextTouchUp() {
this.skipNextTouchUp = true;
}
class PlaceStoneTimer extends Timer {
}
PlaceStoneTimer placeStoneTimer = new PlaceStoneTimer();
class PlaceStoneTimerTask extends TimerTask {
@Override
public void run() {
gridDrawable.highlight();
postInvalidate();
}
}
@Override
public boolean onTouchEvent(MotionEvent event) {
int row = getRow(event.getY());
int col = getCol(event.getX());
gridDrawable.unhighlight();
invalidate();
if (row < 0 || row >= game.getTableSize() || col < 0 || col >= game.getTableSize()) {
return true;
}
switch (event.getAction()) {
case MotionEvent.ACTION_DOWN:
case MotionEvent.ACTION_MOVE:
if (gridDrawable.getHighlightedRow() == null) {
gridDrawable.prehighlight(row, col);
placeStoneTimer.schedule(new PlaceStoneTimerTask(), 50000);
} else if (gridDrawable.getHighlightedRow() != row
|| gridDrawable.getHighlightedCol() != col) {
gridDrawable.prehighlight(row, col);
placeStoneTimer.cancel();
placeStoneTimer.schedule(new PlaceStoneTimerTask(), 50000);
}
return true;
case MotionEvent.ACTION_UP:
if (skipNextTouchUp) {
skipNextTouchUp = false;
return true;
}
try {
game.makeTurnAt(row, col);
} catch (SpaceTakenException e) {
// Toast.makeText(getContext(), "This space is taken",
// Toast.LENGTH_SHORT).show();
} catch (NoLibertiesException e) {
Toast.makeText(getContext(), "No liberty", Toast.LENGTH_SHORT).show();
} catch (KoRuleException e) {
String msg = "Ko rule violation";
if (e.getTurnsAgo() > 2) {
msg = "Super ko rule violation " + e.getTurnsAgo() + " turns ago";
}
Toast.makeText(getContext(), msg, Toast.LENGTH_SHORT).show();
}
}
return true;
}
private class GameListener implements com.rhas.skripsiletsgo.core.GameListener {
public void onStateAdvanced(GameState newState) {
setGameState(newState);
}
public void onGameReset() {
for (int row = 0; row < game.getTableSize(); row++) {
for (int col = 0; col < game.getTableSize(); col++) {
stones[row][col] = null;
}
}
removeAllViews();
}
}
}