我想以编程方式创建多个 ImageButton。我能够创建它们,但点击事件监听器一直接收到相同的 View (按钮 2),无论我是点击按钮 0、按钮 1 还是按钮 2。
RelativeLayout gameBoard = (RelativeLayout) findViewById(R.id.RelGameboard);
RelativeLayout.LayoutParams lp = new RelativeLayout.LayoutParams(RelativeLayout.LayoutParams.WRAP_CONTENT, RelativeLayout.LayoutParams.WRAP_CONTENT);
lp.addRule(RelativeLayout.CENTER_IN_PARENT,1);
for(int i = 0 ; i < 3 ; i++)
{
ImageButton btnGreen = new ImageButton(this);
btnGreen.setImageResource(R.drawable.bola_verde);
btnGreen.setLayoutParams(lp);
btnGreen.setOnClickListener(mGreenBallOnClickListener);
btnGreen.setBackgroundColor(Color.TRANSPARENT);
btnGreen.setTag(i);
btnGreen.setId(i);
gameBoard.addView(btnGreen);
}'
点击事件监听器:
private View.OnClickListener mGreenBallOnClickListener = new View.OnClickListener() {
@Override
public void onClick(View v) {
//check which green ball was clicked
ImageButton imgBtn = (ImageButton) v;
Log.i("greeny","Clicked on green ball->"+imgBtn.getTag()+" v.ID->"+v.getId());
}
};
对于绘制的任何图像按钮,当我点击时我得到:Clicked on green ball->2 v.ID->2
按钮在不同的位置(我为每个按钮设置了不同的填充但为了简化代码我没有把它放在这里)
最佳答案
尝试添加一个onClickListener
-
private View.OnClickListener ClickListener = new View.OnClickListener() {
@Override
public void onClick(View v) {
int selected_item = (Integer) v.getTag();
}
};
编辑
尝试创建一个 ImageButtons
数组 -
ImageButton[] btnGreen = new ImageButton[3];
for (int i = 0; i < 3; i++) {
btnGreen[i] = new ImageButton(this);
btnGreen[i].setImageResource(R.drawable.bola_verde);
btnGreen[i].setLayoutParams(lp);
btnGreen[i].setOnClickListener(ClickListener);
btnGreen[i].setBackgroundColor(Color.TRANSPARENT);
btnGreen[i].setTag(i);
btnGreen[i].setId(i);
gameBoard.addView(btnGreen[i]);
}
关于android - 以编程方式创建图像按钮,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/16416990/