Android canvas.translate()
我正在使用canvas.translate更改画布的坐标,以便视口更改 我的代码:Android canvas.translate(),android,canvas,viewport,Android,Canvas,Viewport,我正在使用canvas.translate更改画布的坐标,以便视口更改 我的代码: public class draw extends View { View v; Paint paint; int width; int height; int view_x; int view_y; static final int MAX_GAME_SPEED = 25; static int fps; public draw(C
public class draw extends View {
View v;
Paint paint;
int width;
int height;
int view_x;
int view_y;
static final int MAX_GAME_SPEED = 25;
static int fps;
public draw(Context context) {
super(context);
// tb.loadimg();
Thread myThread = new Thread(new UpdateThread());
myThread.start();
}
@Override
protected void onDraw(Canvas c) {
super.onDraw(c);
paint = new Paint(); // Paint paint = new Paint();
paint.setStyle(Paint.Style.FILL);
// get screen size
WindowManager wm = (WindowManager) this.getContext().getSystemService(
Context.WINDOW_SERVICE);
Display display = wm.getDefaultDisplay();
width = display.getWidth(); // deprecated
height = display.getHeight(); // deprecated
// make the entire canvas white
paint.setColor(Color.WHITE);
c.drawPaint(paint);
if (tb.dirt != null && tb.stone != null && tb.sand != null
&& tb.gold != null && tb.iron != null && tb.coal != null
&& tb.kies != null && tb.diamond != null && tb.redstone != null
&& tb.lava != null && tb.azur != null && tb.water != null) {
c.drawBitmap(tb.dirt, 0, 0, paint);
c.drawBitmap(tb.stone, 0, 50, paint);
c.drawBitmap(tb.sand, 0, 100, paint);
c.drawBitmap(tb.gold, 0, 150, paint);
c.drawBitmap(tb.iron, 50, 0, paint);
c.drawBitmap(tb.coal, 50, 50, paint);
c.drawBitmap(tb.kies, 50, 100, paint);
c.drawBitmap(tb.diamond, 50, 150, paint);
c.drawBitmap(tb.redstone, 100, 0, paint);
c.drawBitmap(tb.lava, 100, 50, paint);
c.drawBitmap(tb.azur, 100, 100, paint);
c.drawBitmap(tb.water, 100, 150, paint);
}
if (tb.map == null) {
}
view_x = 100;
view_y = 100;
c.translate(0, -4);
}
public Handler updateHandler = new Handler() {
/** Gets called on every message that is received */
// @Override
public void handleMessage(Message msg) {
invalidate();
super.handleMessage(msg);
}
};
public class UpdateThread implements Runnable {
@Override
public void run() {
while (true) { // Game Loop
long startTime = System.currentTimeMillis();
draw.this.updateHandler.sendEmptyMessage(0); // veranlassen,
// dass paint()
// erneut
// aufgerufen
// werden soll
// for (int i=0; i<999999; i++); //Bremse
Thread.yield();
long executionTime = System.currentTimeMillis() - startTime;
if (executionTime < MAX_GAME_SPEED) {
try {
Thread.sleep(MAX_GAME_SPEED - (int) executionTime);
} catch (InterruptedException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
fps = 1000 / MAX_GAME_SPEED;
} else
fps = (int) (1000 / executionTime);
}
}
}
}
公共类绘图扩展视图{
观点五;
油漆;
整数宽度;
内部高度;
int view_x;
国际视野;
静态最终整数最大游戏速度=25;
静态整数fps;
公共绘图(上下文){
超级(上下文);
//tb.loadimg();
Thread myThread=新线程(new UpdateThread());
myThread.start();
}
@凌驾
受保护的void onDraw(画布c){
super.onDraw(c);
paint=new paint();//paint=new paint();
绘制.设置样式(绘制.样式.填充);
//获取屏幕大小
WindowManager wm=(WindowManager)this.getContext().getSystemService(
上下文。窗口(U服务);
Display Display=wm.getDefaultDisplay();
width=display.getWidth();//已弃用
height=display.getHeight();//已弃用
//把整个画布变成白色
油漆。设置颜色(颜色。白色);
c、 油漆;
如果(tb.dirt!=null&&tb.stone!=null&&tb.sand!=null
&&tb.gold!=null&&tb.iron!=null&&tb.coal!=null
&&tb.kies!=null&&tb.diamond!=null&&tb.redstone!=null
&&tb.lava!=null&&tb.azur!=null&&tb.water!=null){
c、 drawBitmap(tb.dirt,0,0,paint);
c、 drawBitmap(tb.stone,0,50,油漆);
c、 绘制位图(tb.sand,0,100,油漆);
c、 drawBitmap(tb.gold,0,150,油漆);
c、 绘图位图(tb.iron,50,0,油漆);
c、 绘图位图(tb.coal,50,50,油漆);
c、 绘图位图(tb.kies,50,100,油漆);
c、 绘图位图(tb.diamond、50、150、油漆);
c、 drawBitmap(tb.redstone,100,0,油漆);
c、 绘制位图(tb.lava,100,50,绘制);
c、 绘制位图(蓝色,100,100,油漆);
c、 绘制位图(tb.water、100、150、油漆);
}
if(tb.map==null){
}
视图x=100;
视图y=100;
c、 翻译(0,-4);
}
公共处理程序updateHandler=新处理程序(){
/**在收到的每封邮件上调用*/
//@覆盖
公共无效handleMessage(消息消息消息){
使无效();
超级handleMessage(msg);
}
};
公共类UpdateThread实现可运行{
@凌驾
公开募捐{
while(true){//游戏循环
long startTime=System.currentTimeMillis();
draw.this.updateHandler.sendEmptyMessage(0);//veranlassen,
//dass油漆()
//欧内斯特
//奥弗格鲁芬
//沃登索尔
//对于(int i=0;i我认为您必须首先调用translate(),然后绘制对象,
现在,您的c坐标已超出屏幕范围您的翻译仅为1像素。请尝试将其增大一点……我已经尝试了您的建议,但仍然没有任何结果happens@imrankhan,这将只是撤消转换。这有什么帮助?发布UpdateThread()
的代码。它是否正确地使视图无效?