Question

我有以下代码：

LinearLayout lyt = (LinearLayout)findViewById(R.id.mylayout);

for(i=0;i<=3 ;i++) {
  ImageButton ib= new ImageButton(this);
  BitmapDrawable imagebd;
  ib.setClickable(true);
  imageid = getResources().getIdentifier("drawable/" + image,null,getPackageName());

  ib.setBackgroundResource(imageid);

  lyt.addView(ib);
}

所有图像都垂直显示我希望它是水平的

Answer 1

当可以通过XML完成时，避免在Java代码中设置属性。尝试在orientation中设置ListView属性：

<LinearLayout
    ...
    android:orientation="horizontal"
    ...>
 </LinearLayout>

Answer 2

试试这段代码：

LinearLayout lyt = (LinearLayout) findViewById(R.id.mylayout);
lyt.setOrientation(LinearLayout.HORIZONTAL);
for(i=0;i<=3 ;i++) {
    ImageButton ib= new ImageButton(this);
    BitmapDrawable imagebd;
    ib.setClickable(true);
    imageid = getResources().getIdentifier("drawable/" + image,null,getPackageName());

    ib.setBackgroundResource(imageid);

    lyt.addView(ib);
}

Answer 3

尝试这样：

LinearLayout lyt = (LinearLayout)findViewById(R.id.mylayout);

LinearLayout buttonsLinearLayout = new LinearLayout(context);
buttonsLinearLayout.setOrientation(LinearLayout.HORIZONTAL);

for(i=0;i<=3 ;i++)
{
    ImageButton ib= new ImageButton(this);
    BitmapDrawable imagebd;
    ib.setClickable(true);
    imageid = getResources().getIdentifier("drawable/" + image,null,getPackageName());

    ib.setBackgroundResource(imageid);

    buttonsLinearLayout.addView(ib);
}
lyt.addView(buttonsLinearLayout);

这样，你仍然有你的主垂直线性布局，所以你可以把东西放在按钮下面。

编辑：使用它超过1行，我做了一个简单的数学计算......

    LinearLayout lyt = (LinearLayout) findViewById(R.id.mylayout);

    // calculate the number of rows needed
    int numOfButtons = something you already have i guess;

    // row layout
    LinearLayout buttonsLinearLayout = new LinearLayout(context);
    ;

    for (i = 0; i <= numOfButtons; i++) {

        // for every 3 rows, create a new layout
        // and add it to the main linear layout
        if (i % 3 == 0) {
            // create layout for a 3 button row
            buttonsLinearLayout = new LinearLayout(context);
            buttonsLinearLayout.setOrientation(LinearLayout.HORIZONTAL);

            // add the new row with 3 buttons to the main lineal layout
            lyt.addView(buttonsLinearLayout);
        }

        ImageButton ib = new ImageButton(this);
        BitmapDrawable imagebd;
        ib.setClickable(true);
        imageid = getResources().getIdentifier("drawable/" + image, null, getPackageName());

        ib.setBackgroundResource(imageid);
        buttonsLinearLayout.addView(ib);
    }


}

没有经过测试，请告诉我这是否适合您...

将图像按钮动态并排添加到其方向为垂直的Linearlayout

3 个答案: