Why my dynamically created imageviews wont assign a click event
I have a for loop that dynamically creates imageviews and then i am assigning an onclicklistener to the imageviews, i have assigned these onclicklisteners but the event wont fire. why is this? Here is the code:
Note: BlockState is extended by the ImageView Class. The location to where the ImageViews (BlockState) are created is in the CreateLevelStorage Method(int level).
package com.trik.pushover;
import java.util.ArrayList;
import android.content.Context;
import android.util.AttributeSet;
import android.util.Log;
import android.view.*;
import android.view.View.OnTouchListener;
import android.开发者_如何转开发widget.ImageView;
import android.os.*;
import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.Paint;
import android.graphics.Rect;
import android.graphics.RectF;
public class PushOverView extends SurfaceView implements SurfaceHolder.Callback{
private PushOverThread _PushOverThread;
/*private Levels _Level;*/
/*private final int _BlockHeight = 25;
private final int _BlockWidth = 6;*/
private ArrayList _ArrayList;
private final int _BlockGap = 10;
private Context _Context;
public PushOverView(Context context, AttributeSet attrs)
{
super(context,attrs);
SurfaceHolder holder = this.getHolder();
holder.addCallback(this);
this._Context = context;
/*this._Level = new Levels(1,context);*/
this._PushOverThread = new PushOverThread(holder,context, new Handler(),this);
}
public void surfaceCreated(SurfaceHolder holder)
{
this.CreateLevelStorage(1);
this._PushOverThread.start();
}
public void surfaceChanged(SurfaceHolder holder, int format, int width, int height)
{
}
public void surfaceDestroyed(SurfaceHolder holder)
{
}
public void onDraw(Canvas canvas)
{
//super.onDraw(canvas);
this.DrawLevel1(canvas);
}
public void CreateLevelStorage(int level)
{
if(level == 1 && this._ArrayList == null)
{
this._ArrayList = new ArrayList();
BlockState blockstate1 = new BlockState(this._Context,R.drawable.standard);
this._ArrayList.add(blockstate1);
blockstate1.setOnClickListener(btnDoneOnClick);
this._ArrayList.add(null);
BlockState blockState2 = new BlockState(this._Context,R.drawable.standard);
this._ArrayList.add(blockState2);
blockState2.setOnClickListener(btnDoneOnClick);
BlockState blockState3 = new BlockState(this._Context,R.drawable.standard);
this._ArrayList.add(blockState3);
blockState3.setOnClickListener(btnDoneOnClick);
this._ArrayList.add(null);
BlockState blockState4 = new BlockState(this._Context,R.drawable.standard);
this._ArrayList.add(blockState4);
blockState4.setOnClickListener(btnDoneOnClick);
BlockState blockState5 = new BlockState(this._Context,R.drawable.standard);
this._ArrayList.add(blockState5);
blockState5.setOnClickListener(btnDoneOnClick);
}
}
public void DrawLevel1(Canvas canvas)
{
Paint paint = new Paint();
paint.setStyle(Paint.Style.FILL);
paint.setColor(Color.BLUE);
int x = 50;
int y = 50;
int width = 100;
int height = 10;
canvas.drawRect(new RectF(50,y,50+x,y+height),paint);
for(int i = 0; i < this._ArrayList.size(); i++)
{
if(this._ArrayList.get(i) != null)
{
BlockState blockState = (BlockState) this._ArrayList.get(i);
blockState.SetX(x);
blockState.SetY(y-blockState.GetImage().getHeight());
blockState.draw(canvas);
x += this._BlockGap + 6;
}
else
{
x += 6 + this._BlockGap;
}
}
}
private final OnClickListener btnDoneOnClick = new OnClickListener() {
public void onClick(View v) {
Log.d("some_identifying_log_string", "Clicked");
}
};
public class PushOverThread extends Thread
{
private SurfaceHolder _Holder;
private Canvas _Canvas;
private Context _Context;
private PushOverView _PushOverView;
public PushOverThread(SurfaceHolder holder, Context context, Handler handler, PushOverView pushOverView)
{
this._Holder = holder;
this._Context = context;
this._PushOverView = pushOverView;
}
public void run()
{
while(true)
{
//Canvas c = null;
try
{
this._Canvas = this._Holder.lockCanvas(null);
this._PushOverView.onDraw(this._Canvas);
//doDraw(this._Canvas);
}
finally
{
if (this._Canvas != null)
{
this._Holder.unlockCanvasAndPost(this._Canvas);
}
}
}
}
/*public void doDraw(Canvas canvas)
{
//this._Level.doDraw();
}*/
}
}
package com.trik.pushover;
import com.trik.pushover.R;
import android.widget.*;
import android.content.Context;
import android.graphics.BitmapFactory;
import android.graphics.Canvas;
import android.graphics.Bitmap;
import android.graphics.Matrix;
import android.graphics.drawable.BitmapDrawable;
import android.util.Log;
import android.view.GestureDetector;
import android.view.MotionEvent;
import android.view.SurfaceHolder;
import android.view.View;
public class BlockState extends ImageView {
private int _x;
private int _y;
private Context _Context;
private int _Drawable;
private Bitmap _Image;
private boolean _RotateImage = false;
public BlockState(Context context, int drawable)
{
super(context);
this._Context = context;
this._Drawable = drawable;
this._Image = BitmapFactory.decodeResource(this._Context.getResources(), R.drawable.standard);
}
public void onDraw(Canvas canvas)
{
super.onDraw(canvas);
if(this._RotateImage)
{
canvas.save();
canvas.rotate(60, this._x+6,this._y+25);
canvas.drawBitmap(this._Image, this._x, this._y, null);
canvas.restore();
}
else
{
canvas.drawBitmap(this._Image, this._x, this._y, null);
}
}
public void SetRotateIamge(boolean isRotate)
{
this._RotateImage = isRotate;
}
public void SetX(int x)
{
this._x = x;
}
public void SetY(int y)
{
this._y = y;
}
public Bitmap GetImage()
{
return this._Image;
}
}
精彩评论