第一次使用Android Studio时你应该知道的一切配置
http://www.cnblogs.com/smyhvae/p/4390905.html
练习：能够画出9*9格，有两个棋手A，B，交替输入列数0-9，由于重力原理，输入这个列下几行没有棋子，则自动下落；A显示棋子是X，B显示棋子O，要求当出现四连胜利！A和B交替进行；
MainActivity源码：
package com.imooc.wuziqi;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuItem;
public class MainActivity extends AppCompatActivity {
public wuziqipanel wuziqipanel;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
wuziqipanel=(wuziqipanel) findViewById(R.id.id_wuziqi);
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.menu_main,menu);
return true;
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
int id=item.getItemId();
if(id==R.id.action_settings){
wuziqipanel.start();
return true;
}
return super.onOptionsItemSelected(item);
}
}
自定义view源码
package com.imooc.wuziqi;
import android.animation.ValueAnimator;
import android.content.Context;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.graphics.Canvas;
import android.graphics.Paint;
import android.graphics.Point;
import android.os.Bundle;
import android.os.Parcelable;
import android.support.annotation.IntegerRes;
import android.support.annotation.Nullable;
import android.util.AttributeSet;
import android.view.MotionEvent;
import android.view.View;
import android.view.animation.LinearInterpolator;
import android.view.animation.TranslateAnimation;
import android.widget.ImageView;
import android.widget.Toast;
import java.io.FileReader;
import java.util.ArrayList;
import java.util.List;
/**
* Created by Administrator on 2018/7/29.
*/
public class wuziqipanel extends View {
private int mpanelWidth;
private float mLineHeight;
private int MAX_LINE=10;
private int MAX_COUNT_IN_COUNT=4;
TranslateAnimation translateAnimation=null;
private Paint mpaint=new Paint();
private Bitmap mwhitepiece;
private Bitmap mbiackpiece;
private float ratiopieceoflineheight=3*1.0f/4;
// wuziqipanel wuziqi=new wuziqipanel();
// private ImageView greenImage = null;
private boolean miswhite=true;
private ArrayList<Point> mwhitearray=new ArrayList<>();
private ArrayList<Point> Mblackarray=new ArrayList<>();
private boolean misgameover;
private boolean miswhitewinner;
public wuziqipanel(Context context, AttributeSet attrs) {
super(context, attrs);
// setBackgroundColor(0x44ff0000);
init();
}
private void init() {
mpaint.setColor(0x88000000);
mpaint.setAntiAlias(true);
mpaint.setDither(true);
mpaint.setStyle(Paint.Style.STROKE);
mwhitepiece= BitmapFactory.decodeResource(getResources(),R.drawable.stone_w2);
mbiackpiece= BitmapFactory.decodeResource(getResources(),R.drawable.stone_b1);
}
@Override
protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
int widthSize=MeasureSpec.getSize(widthMeasureSpec);
int widtfMode=MeasureSpec.getMode(widthMeasureSpec);
int heightSize=MeasureSpec.getSize(heightMeasureSpec);
int heightMode=MeasureSpec.getMode(heightMeasureSpec);
int width=Math.min(widthSize,heightSize);
if(widtfMode==MeasureSpec.UNSPECIFIED){
width=heightSize;
}else if(heightMode==MeasureSpec.UNSPECIFIED){
width=widthSize;
}
setMeasuredDimension(width,width);
}
@Override
protected void onSizeChanged(int w, int h, int oldw, int oldh) {
super.onSizeChanged(w, h, oldw, oldh);
mpanelWidth = w;
mLineHeight=mpanelWidth*1.0f/MAX_LINE;
int piecewidth=(int)(mLineHeight*ratiopieceoflineheight);
mwhitepiece=Bitmap.createScaledBitmap(mwhitepiece,piecewidth,piecewidth,false);
mbiackpiece=Bitmap.createScaledBitmap(mbiackpiece,piecewidth,piecewidth,false);
}
public void startani(int fir, int last, final Point point){
ValueAnimator animator = ValueAnimator.ofInt(fir,last);
animator.setDuration((last-fir)*100);
animator.setRepeatCount(0);
// animator.setRepeatMode(ValueAnimator.r);
animator.setInterpolator(new LinearInterpolator());
animator.addUpdateListener(new ValueAnimator.AnimatorUpdateListener() {
@Override
public void onAnimationUpdate(ValueAnimator animation) {
int by = (int) animation.getAnimatedValue();
point.y=by;
invalidate();
}
});
animator.start();
}
public boolean onTouchEvent(MotionEvent event) {
if(misgameover){
return false;
}
int action=event.getAction();
if(action==MotionEvent.ACTION_UP){
float x=event.getX();
float y=event.getY();
Point p = getvalidpoint(x,y);
if(Mblackarray.contains(p)||mwhitearray.contains(p))return false;
int i;
int n=p.x;
int m=p.y;
for ( i = p.y; i <=8 ; i++) {
p.set(n,i);
if(mwhitearray.contains(p)||Mblackarray.contains(p)){
break;
}else{
p.y=i;
}
}
p.y=i-1;
if(miswhite){
mwhitearray.add(p);
wuziqipanel.this.setClickable(false);
startani(m,p.y,p);
wuziqipanel.this.setClickable(true);
miswhite=!miswhite;
}else{
Mblackarray.add(p);
wuziqipanel.this.setClickable(false);
startani(m,p.y,p);
wuziqipanel.this.setClickable(true);
miswhite=!miswhite;
}
invalidate();
}
return true;
}
private Point getvalidpoint(float x, float y) {
return new Point((int)((x-mLineHeight/2)/mLineHeight),(int)(y/mLineHeight));
}
@Override
protected void onDraw(Canvas canvas) {
super.onDraw(canvas);
drawBoard(canvas);
drawpieces(canvas);
checkgameover();
}
private void checkgameover() {
boolean whitewin= checkfiveinline(mwhitearray);
boolean blackwin= checkfiveinline(Mblackarray);
if(whitewin||blackwin){
misgameover=true;
miswhitewinner=whitewin;
String text=miswhitewinner?"白棋胜利":"黑棋胜利";
Toast.makeText(getContext(),text,Toast.LENGTH_SHORT).show();
}
}
private boolean checkfiveinline(List<Point> points) {
for(Point p:points){
int x=p.x;
int y=p.y;
boolean win= checkhorizontal(x,y,points);
if(win)return true;
win= checkvertical(x,y,points);
if(win)return true;
win= checkleftdiagonal(x,y,points);
if(win)return true;
win= checkrightdiagonal(x,y,points);
if(win)return true;
}
return false;
}
//判断横向是否成五子
private boolean checkhorizontal(int x, int y, List<Point> points) {
int count=1;
for (int i = 1; i <MAX_COUNT_IN_COUNT ; i++) {
if(points.contains(new Point(x-i,y))){
count++;
}else{
break;
}
}
if(count==MAX_COUNT_IN_COUNT)return true;
for (int i = 1; i <MAX_COUNT_IN_COUNT ; i++) {
if(points.contains(new Point(x+i,y))){
count++;
}else{
break;
}
}
if(count==MAX_COUNT_IN_COUNT)return true;
return false;
}
private boolean checkvertical(int x, int y, List<Point> points) {
int count=1;
for (int i = 1; i <MAX_COUNT_IN_COUNT ; i++) {
if(points.contains(new Point(x,y-i))){
count++;
}else{
break;
}
}
if(count==MAX_COUNT_IN_COUNT)return true;
for (int i = 1; i <MAX_COUNT_IN_COUNT ; i++) {
if(points.contains(new Point(x,y+i))){
count++;
}else{
break;
}
}
if(count==MAX_COUNT_IN_COUNT)return true;
return false;
}
private boolean checkleftdiagonal(int x, int y, List<Point> points) {
int count=1;
for (int i = 1; i <MAX_COUNT_IN_COUNT ; i++) {
if(points.contains(new Point(x-i,y+i))){
count++;
}else{
break;
}
}
if(count==MAX_COUNT_IN_COUNT)return true;
for (int i = 1; i <MAX_COUNT_IN_COUNT ; i++) {
if(points.contains(new Point(x+i,y-i))){
count++;
}else{
break;
}
}
if(count==MAX_COUNT_IN_COUNT)return true;
return false;
}
private boolean checkrightdiagonal(int x, int y, List<Point> points) {
int count=1;
for (int i = 1; i <MAX_COUNT_IN_COUNT ; i++) {
if(points.contains(new Point(x-i,y-i))){
count++;
}else{
break;
}
}
if(count==MAX_COUNT_IN_COUNT)return true;
for (int i = 1; i <MAX_COUNT_IN_COUNT ; i++) {
if(points.contains(new Point(x+i,y+i))){
count++;
}else{
break;
}
}
if(count==MAX_COUNT_IN_COUNT)return true;
return false;
}
private void drawpieces(Canvas canvas) {
for (int i = 0,n=mwhitearray.size(); i <n ; i++) {
Point whitepoint=mwhitearray.get(i);
canvas.drawBitmap(mwhitepiece,(whitepoint.x+1-(ratiopieceoflineheight/2))*mLineHeight,
(whitepoint.y+1-(ratiopieceoflineheight/2))*mLineHeight,null);
}
for (int i = 0,n=Mblackarray.size(); i <n ; i++) {
Point blackpoint=Mblackarray.get(i);
canvas.drawBitmap(mbiackpiece,(blackpoint.x+1-(ratiopieceoflineheight/2))*mLineHeight,
(blackpoint.y+1-(ratiopieceoflineheight/2))*mLineHeight,null);
}
}
private void drawBoard(Canvas canvas) {
int w=mpanelWidth;
float lineHeight=mLineHeight;
for (int i = 0; i <MAX_LINE ; i++) {
// int startx=(int)(lineHeight);
// int end=(int)(w-lineHeight);
int startx=(int)(lineHeight/2);
int end=(int)(w-lineHeight/2);
int y=(int)((0.5+i)*lineHeight);
// 上三行代码使旗子下在中间
// int y=(int)(i*lineHeight);
canvas.drawLine(startx,y,end,y,mpaint);
canvas.drawLine(y,startx,y,end,mpaint);
}
}
private static final String INSTANCE="instance";
private static final String INSTANCE_GAME_OVER="instance_game_over";
private static final String INSTANCE_WHITE_ARRAY="instance_white_array";
private static final String INSTANCE_BLACK_ARRAY="instance_black_array";
@Override
protected Parcelable onSaveInstanceState() {
Bundle bundle=new Bundle();
bundle.putParcelable(INSTANCE,super.onSaveInstanceState());
bundle.putBoolean(INSTANCE_GAME_OVER,misgameover);
bundle.putParcelableArrayList(INSTANCE_WHITE_ARRAY,mwhitearray);
bundle.putParcelableArrayList(INSTANCE_WHITE_ARRAY,Mblackarray);
return bundle;
}
@Override
protected void onRestoreInstanceState(Parcelable state) {
if(state instanceof Bundle){
Bundle bundle=(Bundle)state;
misgameover=bundle.getBoolean(INSTANCE_GAME_OVER);
mwhitearray=bundle.getParcelableArrayList(INSTANCE_WHITE_ARRAY);
Mblackarray=bundle.getParcelableArrayList(INSTANCE_BLACK_ARRAY);
super.onRestoreInstanceState(bundle.getParcelable(INSTANCE));
return;
}
super.onRestoreInstanceState(state);
}
public void start(){
mwhitearray.clear();
Mblackarray.clear();
miswhitewinner=false;
misgameover=false;
invalidate();
}
}
layout：源码<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="@drawable/bg"
tools:context="com.imooc.wuziqi.MainActivity">
<com.imooc.wuziqi.wuziqipanel
android:id="@+id/id_wuziqi"
android:layout_centerInParent="true"
android:layout_width="match_parent"
android:layout_height="match_parent"
/>
</RelativeLayout>
menu：源码：
<?xml version="1.0" encoding="utf-8"?> <menu xmlns:app="http://schemas.android.com/apk/res-auto" xmlns:android="http://schemas.android.com/apk/res/android" xmlns:tools="http://schemas.android.com/tools" tools:context=".MainActivity"> <item android:title="再来一局" android:id="@+id/action_settings" android:orderInCategory="100" app:showAsAction="never"/> </menu>存在的bug: 1.快速点击会使棋子下落受阻2.胜负判定失误
原因：
1.动画未执行完就传入点击事件
2，y坐标未处理就传入判定方法。