AlertDialog einbinden

1package com.test.motionpath;
2
3import java.util.ArrayList;
4
5import android.app.AlertDialog;
6import android.content.Context;
7import android.content.DialogInterface;
8import android.graphics.Bitmap;
9import android.graphics.Canvas;
10import android.graphics.Color;
11import android.graphics.Paint;
12import android.graphics.PointF;
13import android.util.Log;
14import android.view.MotionEvent;
15import android.view.SurfaceHolder;
16import android.view.SurfaceView;
17import android.view.View;
18import android.view.View.OnTouchListener;
19
20public class MotionPathView extends SurfaceView implements SurfaceHolder.Callback, OnTouchListener
21{
22
23 private Bitmap line;
24 private Canvas lineCanvas;
25 private DrawThread thread;
26 private Paint paint;
27 private Paint linepaint;
28 private Paint verticalPaint;
29 private ArrayList<PointF> points;
30 private PointF last;
31 private int idx;
32 private float incline;
33 private float inclineVertical;
34 private AlertDialog show;
35
36
37 public void SavePoint(){
38
39 return;
40 }
41
42 public MotionPathView(Context context)
43 {
44 super(context);
45
46 setFocusable(true);
47 setClickable(true);
48 setOnTouchListener(this);
49
50 getHolder().addCallback(this);
51 thread = new DrawThread(getHolder(), this);
52
53 points = new ArrayList<PointF>();
54
55 paint = new Paint();
56 paint.setStrokeWidth(2);
57 paint.setAntiAlias(false);
58 paint.setColor(Color.GREEN);
59
60 linepaint = new Paint();
61 linepaint.setStrokeWidth(15);
62 linepaint.setAntiAlias(true);
63 linepaint.setColor(Color.BLUE);
64
65
66 verticalPaint = new Paint();
67 verticalPaint.setStrokeWidth(3);
68 verticalPaint.setAntiAlias(true);
69 verticalPaint.setColor(Color.RED);
70
71 idx = -1;
72 }
73
74 @Override
75 protected void onDraw(Canvas canvas)
76 {
77 canvas.drawColor(Color.BLACK);
78
79 if (line != null)
80 canvas.drawBitmap(line, 0, 0, null);
81
82 if (idx > -1 && idx < points.size())
83 {
84 if (idx < points.size() - 1)
85 {
86 if (points.get(idx + 1).x - points.get(idx).x != 0)
87 incline = (points.get(idx + 1).y - points.get(idx).y) / (points.get(idx + 1).x - points.get(idx).x);
88 else
89 incline = 0;
90
91 if (points.get(idx + 1).y - points.get(idx).y == 0)
92 {
93 canvas.drawLine(points.get(idx).x, points.get(idx).y, points.get(idx).x, points.get(idx).y + 10, verticalPaint);
94 canvas.drawLine(points.get(idx).x, points.get(idx).y, points.get(idx).x, points.get(idx).y - 10, verticalPaint);
95 idx++;
96 return;
97 }
98 }
99
100
101
102 inclineVertical = incline == 0 ? incline : -1 / incline;
103
104
105
106 float x = points.get(idx).x + 10;
107 float y = inclineVertical * (x - points.get(idx).x) + points.get(idx).y;
108 canvas.drawLine(points.get(idx).x, points.get(idx).y, x, y, verticalPaint);
109
110 x = points.get(idx).x - 10;
111 y = inclineVertical * (x - points.get(idx).x) + points.get(idx).y;
112 canvas.drawLine(points.get(idx).x, points.get(idx).y, x, y, verticalPaint);
113 idx++;
114 }
115 }
116
117 @Override
118 public void surfaceChanged(SurfaceHolder holder, int format, int width, int height)
119 {
120
121 }
122
123 @Override
124 public void surfaceCreated(SurfaceHolder holder)
125 {
126 thread.setRunning(true);
127 thread.start();
128
129 line = Bitmap.createBitmap(getWidth(), getHeight(), Bitmap.Config.RGB_565);
130 lineCanvas = new Canvas(line);
131 lineCanvas.drawColor(Color.BLACK);
132 }
133
134 @Override
135 public void surfaceDestroyed(SurfaceHolder holder)
136 {
137 boolean retry = true;
138 thread.setRunning(false);
139 while (retry)
140 {
141 try
142 {
143 thread.join();
144 retry = false;
145 } catch (InterruptedException ignore)
146 {
147
148 }
149 }
150
151 }
152
153 @Override
154 public boolean onTouch(View v, MotionEvent event)
155 {
156 switch (event.getAction())
157 {
158 case MotionEvent.ACTION_DOWN:
159 idx = -1;
160 points.clear();
161 lineCanvas.drawColor(Color.BLACK);
162 last = null;
163
164
165 case MotionEvent.ACTION_MOVE:
166 if (last == null)
167 {
168 last = new PointF();
169 //lineCanvas.drawLine((int) event.getX(), (int) event.getY(), (int) event.getX(), (int) event.getY(), paint);
170 lineCanvas.drawPoint(event.getX(), event.getY(), paint);
171
172
173
174
175 } else
176 {
177 lineCanvas.drawLine(last.x, last.y, (int) event.getX(), (int) event.getY(), linepaint);
178
179 // Zeichnung
180 }
181
182 points.add(new PointF( event.getX(), event.getY()));
183 last.set(event.getX(), event.getY());
184
185
186 OnClick(points);
187
188 //Log.v("","Punkte" + points);
189
190
191
192
193 //SavePoints(points);
194
195
196 break;
197
198
199 case MotionEvent.ACTION_UP:
200 idx = 0;
201 break;
202
203 default:
204 break;
205 }
206
207 return true;
208 }
209
210
211 private void OnClick(ArrayList<PointF> points) {
212
213 // new AlertDialog.Builder(this).setMessage(R.string.app_name);
214 // TODO Auto-generated method stub
215
216
217 }
218
219 private void SavePoints(ArrayList<PointF> points) {
220 ArrayList<PointF> x = points; // Arraylist von Punkten die gespeichert werden sollen
221 }
222
223}