【android】代碼中動態添加控制項

需求：有時候在事先不能取得要多少控制項，就在代碼中動態添加

在Layout插入一個View：

<LinearLayout android:id="@+id/newsinfo_imgs"        android:layout_width="fill_parent"        android:layout_height="wrap_content"        android:orientation="vertical"></LinearLayout>

Java代碼

private LinearLayout layout = null;...layout = (LinearLayout)findViewById(R.id.newsinfo_imgs);...ImageView imgView = getImageView();imgView.setImageDrawable(drawable);layout.addView(imgView);

private ImageView getImageView(){    ImageView imgView = new ImageView(NewsInfoActivity.this);    imgView.setLayoutParams(new LayoutParams(LayoutParams.FILL_PARENT, LayoutParams.WRAP_CONTENT));    imgView.setScaleType(ScaleType.CENTER_INSIDE);    return imgView;}

注意這行代碼:

setLayoutParams(new LayoutParams(LayoutParams.FILL_PARENT, LayoutParams.WRAP_CONTENT));