我想做一個3x3網格佈局的圖像(ImageView),並且一旦用戶點擊任何圖像上該圖像的照片改變,我在這裏面臨的問題是,我無法找到正在點擊的圖像,以便我可以更改它上面的照片。我想寫遊戲是一個簡單的井字
1)這裏是我的主要活動代碼如何在單擊網格佈局時更改圖像?
package eg.edu.guc;
import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.widget.AdapterView;
import android.widget.ImageView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.GridView;
//import android.widget.Toast
public class AndXOActivity extends Activity {
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
GridView gridView = (GridView) findViewById(R.id.gridview);
// Instance of ImageAdapter Class
gridView.setAdapter(new ImageAdapter(this));
gridView.setOnItemClickListener(new OnItemClickListener() {
public void onItemClick(AdapterView<?> parent, View v, int position, long id) {
//Toast.makeText(AndXOActivity.this, "" + position, Toast.LENGTH_SHORT).show();
//ImageView imageView = new ImageView(getMContext());
getImageView().setImageResource(R.drawable.x);
}
});
}
}
2)下面是ImageAdapter類
import android.content.Context;
import android.database.DataSetObserver;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.GridView;
import android.widget.ImageView;
public class ImageAdapter extends BaseAdapter {
private Context mContext;
public ImageView imageView;
public ImageView getImageView() {
return imageView;
}
// Keep all Images in array
public Integer[] mThumbIds = {
R.drawable.sample_0, R.drawable.sample_1,
R.drawable.sample_2, R.drawable.sample_3,
R.drawable.sample_4, R.drawable.sample_5,
R.drawable.sample_6, R.drawable.sample_7,
R.drawable.x, R.drawable.o
};
// Constructor
public ImageAdapter(Context c){
mContext = c;
}
public Context getMContext() {
return mContext;
}
@Override
public int getCount() {
return mThumbIds.length;
}
@Override
public Object getItem(int position) {
return mThumbIds[position];
}
@Override
public long getItemId(int position) {
return 0;
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
imageView = new ImageView(mContext);
imageView.setImageResource(R.drawable.tile);
imageView.setScaleType(ImageView.ScaleType.CENTER_CROP);
imageView.setLayoutParams(new GridView.LayoutParams(70, 70));
return imageView;
}
}
3碼)這裏是.xml文件
<?xml version="1.0" encoding="utf-8"?>
<GridView xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/gridview"
android:layout_width="150dp"
android:layout_gravity="center"
android:layout_height="150dp"
android:columnWidth="90dp"
android:numColumns="3"
android:verticalSpacing="5dp"
android:horizontalSpacing="5dp"
android:gravity="center"
/>
請告訴我,我應該怎麼做,使圖像變化,一旦我點擊ImageView的!