怎样删除android的gallery中的图片实例说明

复制代码 代码如下:

/*长按gallery中的图片进行删除该图片的操作*/

gallery.setOnItemLongClickListener(new OnItemLongClickListener(){

@Override

public boolean onItemLongClick(AdapterView<?> arg0, View arg1,

final int arg2, long arg3) {

// TODO Auto-generated method stub

new AlertDialog.Builder(SdcardActivity.this)

.setIcon(android.R.drawable.ic_dialog_alert)

.setTitle("温馨提示")

.setMessage("您真的要删除这个图片吗")

.setPositiveButton("确定", new DialogInterface.OnClickListener() {

@Override

public void onClick(DialogInterface dialog, int which) {

// TODO Auto-generated method stub

File file=new File(Constants.path+imageNames[arg2]);

if(file.exists()){

file.delete();

}

}

})

.setNegativeButton("取消", null)

.show();

return true;

}

});

}