Android 如何将填充或边距设置为线性布局？
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how to set padding or margin to linear layout?
提问by Alan Lai
I have a linear layout
我有一个线性布局
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/layout_menu"
android:layout_width="fill_parent"
android:layout_height="70px"
android:layout_alignParentBottom="true"
android:background="@drawable/footer_bar"
android:gravity="center" >
</LinearLayout>
When i set condition
当我设定条件
if (constant.getscreenresolution() >= 800) {
//i want to make it height * 2
}
So how to set the layout params?
那么如何设置layout params呢？
采纳答案by MichaelP
hope this helps you
希望这对你有帮助
LinearLayout.LayoutParams layout_param= new LinearLayout.LayoutParams(
LinearLayout.LayoutParams.fill_parent,
height * 2);
mLayout = (LinearLayout) findViewById(R.id.layout_menu);
mLayout.setLayoutParams(layout_param);
回答by Hanon
For padding:
对于填充：
LinearLayout mLayout = (LinearLayout)findViewById(R.id.layout_menu);
mLayout.setPadding(left, top, right, bottom);
回答by bhoomika
LinearLayout mLayout = (LinearLayout)v.findViewById(R.id.ll_winfowindo);
int left= (int) activity.getResources().getDimension(R.dimen._18sdp);
int top=(int) activity.getResources().getDimension(R.dimen._22sdp);
int right=(int) activity.getResources().getDimension(R.dimen._18sdp);
int bottom=(int) activity.getResources().getDimension(R.dimen._34sdp);
mLayout.setPadding(left, top, right, bottom);
回答by chubbsondubs
You shouldn't be doing this. First you're using pixels (px) instead of device independent pixels (dp) Doing things like this create UIs that only work for specific device screen configurations. You need to learn how Android addresses the variations in screen densities so that your app is screen density independent. Start here:
你不应该这样做。首先，您使用像素 (px) 而不是设备独立像素 (dp) 这样做会创建仅适用于特定设备屏幕配置的 UI。您需要了解 Android 如何解决屏幕密度的变化，以便您的应用与屏幕密度无关。从这里开始：
http://developer.android.com/guide/practices/screens_support.html
http://developer.android.com/guide/practices/screens_support.html
回答by Sarbjyot
Add Margin to Linear Layout :-
向线性布局添加边距：-
LinearLayout.LayoutParams layoutParams = new LinearLayout.LayoutParams(
LinearLayout.LayoutParams.MATCH_PARENT, LinearLayout.LayoutParams.WRAP_CONTENT);
layoutParams.setMargins(30, 20, 30, 0);
