Hilfe bei onDraw()

1package projekt.wuuli;
2
3import android.content.Context;
4import android.graphics.Canvas;
5import android.graphics.Color;
6import android.graphics.Paint;
7import android.util.AttributeSet;
8import android.view.SurfaceHolder;
9import android.view.SurfaceView;
10
11public class Panel extends SurfaceView implements SurfaceHolder.Callback {
12 private CanvasThread canvasthread;
13 private Paint paint = new Paint();
14 public Canvas canvas;
15 public boolean isInitialized;
16 private int x=0;
17 private int y=0;
18 private int xx=100;
19 private int yy=300;
20 private boolean zeichnen = false;
21
22 public Panel(Context context, AttributeSet attrs) {
23 super(context, attrs);
24 // TODO Auto-generated constructor stub
25 getHolder().addCallback(this);
26 canvasthread = new CanvasThread(getHolder(), this);
27 setFocusable(true);
28 }
29
30 public Panel(Context context) {
31 super(context);
32 getHolder().addCallback(this);
33 canvasthread = new CanvasThread(getHolder(), this);
34 setFocusable(true);
35 isInitialized = false;
36
37 }
38
39 public void re(){
40 zeichnen = true;
41 }
42
43 @Override
44 public void onDraw(Canvas canvas) {
45 paint.setColor(Color.GREEN);
46 if(!zeichnen){
47 re();
48 canvas.drawLine(0, 0, 100, 300, paint);
49 canvas.drawLine(1, 0, 101, 300, paint);
50 }
51 }
52
53 @Override
54 public void surfaceChanged(SurfaceHolder holder, int format, int width,
55 int height) {
56 // TODO Auto-generated method stub
57
58 }
59
60 @Override
61 public void surfaceCreated(SurfaceHolder holder) {
62 // TODO Auto-generated method stub
63 setWillNotDraw(false);
64 canvasthread.setRunning(true);
65 canvasthread.start();
66
67 }
68
69 @Override
70 public void surfaceDestroyed(SurfaceHolder holder) {
71 // TODO Auto-generated method stub
72 boolean retry = true;
73 canvasthread.setRunning(false);
74 while (retry) {
75 try {
76 canvasthread.join();
77 retry = false;
78 } catch (InterruptedException e) {
79 // we will try it again and again...
80 }
81 }
82 }
83 public void setX(int x){
84 this.x = x;
85 }
86 public void setXX(int xx){
87 this.xx = xx;
88 }
89 public void setY(int y){
90 this.y = y;
91 }
92 public void setYY(int yy){
93 this.yy = yy;
94 }
95
96 public int getX(){
97 return x;
98 }
99 public int getXX(){
100 return xx;
101 }
102 public int getY(){
103 return y;
104 }
105 public int getYY(){
106 return yy;
107 }
108}

1package projekt.wuuli;
2
3
4import android.app.Activity;
5import android.content.Context;
6import android.content.Intent;
7import android.graphics.Canvas;
8import android.graphics.Color;
9import android.graphics.Paint;
10import android.graphics.PixelFormat;
11import android.os.Bundle;
12import android.view.SurfaceHolder;
13import android.view.SurfaceView;
14import android.view.View;
15import android.view.View.OnClickListener;
16import android.widget.ImageButton;
17import android.widget.LinearLayout;
18
19public class Spiel extends Activity {
20 private ImageButton bf1;
21 private ImageButton bf2;
22 private ImageButton bf3;
23 private ImageButton bf4;
24 private ImageButton bf5;
25 private ImageButton bf6;
26
27 private ImageButton ba1;
28 private ImageButton ba2;
29 private ImageButton ba3;
30 private ImageButton ba4;
31 private ImageButton ba5;
32 private ImageButton ba6;
33
34 private float fx;
35 private float fy;
36 private float ax;
37 private float ay;
38
39
40
41
42 //
43
44
45
46 public void onCreate(Bundle savedInstanceState) {
47 super.onCreate(savedInstanceState);
48 setContentView(R.layout.spiel);
49 SurfaceView sv= (SurfaceView) this.findViewById(R.id.SurfaceView01);
50 sv.setZOrderOnTop(true); // necessary
51 sv.getHolder().setFormat(PixelFormat.RGBA_8888);
52
53
54 bf1 = (ImageButton) this.findViewById(R.id.bf1);
55 bf1.setOnClickListener(new OnClickListener() {
56 @Override
57 public void onClick(View v) {
58 fx = bf1.getScrollX();
59 fy = bf1.getScrollY();
60
61 }
62
63 });
64 bf2 = (ImageButton) this.findViewById(R.id.bf2);
65 bf2.setOnClickListener(new OnClickListener() {
66 @Override
67 public void onClick(View v) {
68 fx = bf2.getScrollX();
69 fy = bf2.getScrollY();
70 }
71
72 });
73 bf3 = (ImageButton) this.findViewById(R.id.bf3);
74 bf3.setOnClickListener(new OnClickListener() {
75 @Override
76 public void onClick(View v) {
77 fx = bf3.getScrollX();
78 fy = bf3.getScrollY();
79
80 }
81
82 });
83 bf4 = (ImageButton) this.findViewById(R.id.bf4);
84 bf4.setOnClickListener(new OnClickListener() {
85 @Override
86 public void onClick(View v) {
87
88 fx = bf4.getScrollX();
89 fy = bf4.getScrollY();
90 }
91
92 });
93 bf5 = (ImageButton) this.findViewById(R.id.bf5);
94 bf5.setOnClickListener(new OnClickListener() {
95 @Override
96 public void onClick(View v) {
97 fx = bf5.getScrollX();
98 fy = bf5.getScrollY();
99
100 }
101
102 });
103 bf6 = (ImageButton) this.findViewById(R.id.bf6);
104 bf6.setOnClickListener(new OnClickListener() {
105 @Override
106 public void onClick(View v) {
107 fx = bf6.getScrollX();
108 fy = bf6.getScrollY();
109
110 }
111
112 });
113 ba1 = (ImageButton) this.findViewById(R.id.ba1);
114 ba1.setOnClickListener(new OnClickListener() {
115 @Override
116 public void onClick(View v) {
117 ax = ba1.getScrollX();
118 ay = ba1.getScrollY();
119
120
121 //Drawing(fx,fy,ax,ay);
122 }
123
124 });
125 ba2 = (ImageButton) this.findViewById(R.id.ba2);
126 ba2.setOnClickListener(new OnClickListener() {
127 @Override
128 public void onClick(View v) {
129 ax = ba2.getScrollX();
130 ay = ba2.getScrollY();
131
132
133 //Drawing(fx,fy,ax,ay);
134 }
135
136 });
137 ba3 = (ImageButton) this.findViewById(R.id.ba3);
138 ba3.setOnClickListener(new OnClickListener() {
139 @Override
140 public void onClick(View v) {
141
142 ax = ba3.getScrollX();
143 ay = ba3.getScrollY();
144
145
146 //Drawing(fx,fy,ax,ay);
147 }
148
149 });
150 ba4 = (ImageButton) this.findViewById(R.id.ba4);
151 ba4.setOnClickListener(new OnClickListener() {
152 @Override
153 public void onClick(View v) {
154 ax = ba4.getScrollX();
155 ay = ba4.getScrollY();
156
157 //Drawing(fx,fy,ax,ay);
158 }
159
160 });
161 ba5 = (ImageButton) this.findViewById(R.id.ba5);
162 ba5.setOnClickListener(new OnClickListener() {
163 @Override
164 public void onClick(View v) {
165 ax = ba5.getScrollX();
166 ay = ba5.getScrollY();
167
168
169 //Drawing(fx,fy,ax,ay);
170 }
171
172 });
173 ba6 = (ImageButton) this.findViewById(R.id.ba6);
174 ba6.setOnClickListener(new OnClickListener() {
175 @Override
176 public void onClick(View v) {
177 ax = ba6.getScrollX();
178 ay = ba6.getScrollY();
179
180
181 //Drawing(fx,fy,ax,ay);
182 }
183
184 });
185 }
186
187
188
189}

1package projekt.wuuli;
2
3import android.graphics.Canvas;
4import android.view.SurfaceHolder;
5
6
7
8public class CanvasThread extends Thread {
9 private SurfaceHolder _surfaceHolder;
10 private Panel _panel;
11 private boolean _run = false;
12
13 public CanvasThread(SurfaceHolder surfaceHolder, Panel panel) {
14 _surfaceHolder = surfaceHolder;
15 _panel = panel;
16 }
17
18 public void setRunning(boolean run) {
19 _run = run;
20 }
21
22 @Override
23 public void run() {
24 Canvas c;
25 while (_run) {
26 c = null;
27 try {
28 c = _surfaceHolder.lockCanvas(null);
29 synchronized (_surfaceHolder) {
30 _panel.onDraw(c);
31 }
32 } finally {
33 // do this in a finally so that if an exception is thrown
34 // during the above, we don't leave the Surface in an
35 // inconsistent state
36 if (c != null) {
37 _surfaceHolder.unlockCanvasAndPost(c);
38 }
39 }
40 }
41 }
42}