Android的观点layout_width - 如何以编程方式改变? [英] Android view layout_width - how to change programmatically?
问题描述
这是我的看法,我希望layout_width变为10dip。我该怎么做这样编程? 请注意,这不是一个线性布局,这是一个观点。
This is my view, and I wish to change layout_width to "10dip". How do I do so programmatically? Note, this is not a Linear Layout, it's a view.
<View android:id="@+id/nutrition_bar_filled"
android:background="@drawable/green_rectangle"
android:layout_height="30dip"
android:layout_width="50dip">
</View>
我知道的LayoutParams。我如何使用它来设置宽度为10dip?
I know about LayoutParams. How do I use it to set the width to 10dip?
推荐答案
我相信你的问题是动态变化的观点仅宽度,而上面的方法将彻底改变布局属性为新的,所以我建议getLayoutParams从视图中第一,然后将宽度上layoutParmas,最后设置的LayoutParams到视图,所以按照以下步骤来执行相同
I believe your question is to change only width of view dynamically, whereas above methods will change layout properties completely to new one, so I suggest to getLayoutParams from view first, then set width on layoutParmas, and finally set layoutparams to the view, so following below steps to do the same.
View view_instance = (View)findViewById(R.id.nutrition_bar_filled);
LayoutParams params=view_instance.getLayoutParams();
params.width=newOne;
view_instance.setLayoutParams(params);
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