Implementation of the Android curriculum

The code snippet basically implements the basic layout that the curriculum will display

Package Com.example.android_draw;

Import Android.content.Context;
Import Android.graphics.Bitmap;
Import Android.graphics.BitmapFactory;
Import Android.graphics.Canvas;
Import Android.graphics.Color;
Import Android.graphics.Matrix;
Import Android.graphics.Paint;
Import Android.util.AttributeSet;
Import android.view.MotionEvent;
Import Android.view.View;

public class Mydraw extends View {
Private paint paintlinev=new paint ();
Private paint paintlineh=new paint ();
Private paint paintjia=new paint ();
Private paint paintnumber=new paint ();
Private paint painttext=new paint ();
Private paint paintselect=new paint ();
private float Mousex,mousey;
private static Boolean initflag=false;
private static Boolean ontoucheventflag=false;
private static int spacew=0;
private static int spaceh=0;
private static int[] result=new int[2];
Private Bitmap Tianjia;
Private String
Public Mydraw (Context context) {
Super (context);
TODO auto-generated Constructor stub
}
Public Mydraw (context context, AttributeSet Attrs) {
Super (context, attrs);
TODO auto-generated Constructor stub
}

Public Mydraw (context context, AttributeSet attrs, int defstyle) {
Super (context, attrs, Defstyle);
TODO auto-generated Constructor stub
}
@Override
protected void OnDraw (canvas canvas) {
TODO auto-generated Method Stub
Super.ondraw (canvas);
if (!initflag) {
Init ();
}
Drawbackground (canvas);
if (Ontoucheventflag) {
Drawrectangle1 (canvas);
}
}
@Override
public boolean ontouchevent (Motionevent event) {
TODO auto-generated Method Stub
Mousex=event.getx ();
Mousey=event.gety ();
Switch (event.getaction ()) {
Case Motionevent.action_down:
if (MOUSEX>SPACEW) {
result[0]= (int) ((MOUSEX-SPACEW)/(2*SPACEW));
Ontoucheventflag=true;
}
result[1]= (int) (mousey/(SPACEH));

Break
}
Mydraw.this.postInvalidate ();
return true;
}

public void Drawbackground (canvas canvas) {
Canvas.drawline (spacew, 0, Spacew, 12*SPACEH, Paintlinev);
for (int i=1;i<13;i++) {
Canvas.drawtext (i, SPACEW/2, SPACEH*I*3/4, Paintnumber);
}
for (int i=1;i<=12;i+=1) {
Canvas.drawline (0, I*spaceh, Spacew, I*SPACEH, Paintlineh);
}
for (int i=1;i<=12;i+=1) {
for (int j=3;j<15;j+=2) {
Canvas.drawline (J*spacew-2, I*spaceh, J*spacew+3, I*SPACEH, Paintlineh);

}
}
for (int i=1;i<=12;i+=1) {
for (int j=3;j<15;j+=2) {
Canvas.drawline (J*spacew, I*spaceh-2, J*spacew, i*spaceh+3, Paintlinev);
}
}
}

private void Drawrectangle1 (canvas canvas) {
//matrix matrix = new Matrix ();
Matrix.prescale (Space/tianjia.getwidth (), Space/tianjia.getheight (), Result[0]*space, result[1]*space);
//canvas.drawbitmap (Tianjia, Matrix, Paintjia);
Canvas.drawbitmap (Tianjia, Result[0]*2*spacew+spacew, Result[1]*spaceh,paintjia);
}
public void init () {
Paintlineh.setcolor (color.black);
Paintlineh.setstrokewidth (1);
Paintlinev.setcolor (Color.Black);
Paintlinev.setstrokewidth (1);
Paintnumber.setcolor (Color.Black);
Paintnumber.setstrokewidth (1);

Tianjia=bitmapfactory.decoderesource (getresources (), R.drawable.tianjia);
int Width=getwidth ();
int height=getheight ();

Spacew=width/15;

Spaceh=height/12;

Paintnumber.settextsize ((float) (0.75*height));
Paintnumber.settextalign (Paint.Align.CENTER);
Tianjia=bitmapfactory.decoderesource (Getresources (), R.drawable.tianjia);
Tianjia=bitmap.createscaledbitmap (Tianjia, 2*spacew, SPACEH, false);
Initflag=true;
}

}

Other content can be added according to their own interests, the following is I do, for reference only.

Implementation of the Android curriculum