Android 如何以编程方式更改 Google Maps v2（支持 Fragment）的宽度和高度？
声明：本页面是StackOverFlow热门问题的中英对照翻译，遵循CC BY-SA 4.0协议，如果您需要使用它，必须同样遵循CC BY-SA许可，注明原文地址和作者信息，同时你必须将它归于原作者（不是我）：StackOverFlow
原文地址: http://stackoverflow.com/questions/21469345/
Warning: these are provided under cc-by-sa 4.0 license. You are free to use/share it, But you must attribute it to the original authors (not me):
StackOverFlow
How do you programmatically change the width & height of Google Maps v2 (support Fragment)?
提问by loeschg
How do you programatically change the width and height of a com.google.android.gms.maps.SupportMapFragment? I'd imagine you might be able to wrap it in a viewgroup with match_parent, but I'm hoping not to nest if I don't have to (honestly not even sure it works).
如何以编程方式更改 com.google.android.gms.maps.SupportMapFragment 的宽度和高度？我想你可能可以用 match_parent 将它包装在一个视图组中，但我希望如果我不需要的话不要嵌套（老实说，甚至不确定它是否有效）。
<fragment xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/storefront_map"
class="com.google.android.gms.maps.SupportMapFragment"
android:layout_width="match_parent"
android:layout_height="250dp"
/>
To give context, I'd like to expand the map from one height to another on map click.
为了提供上下文，我想在地图点击时将地图从一个高度扩展到另一个高度。
mMap.setOnMapClickListener(new GoogleMap.OnMapClickListener() {
@Override
public void onMapClick(LatLng latLng) {
expandMap(); // not sure how to do this programatically.
}
});
Any help would be great!
任何帮助都会很棒！
回答by loeschg
I figured it out largely with the help of Programmatically set google map fragment visibility (API2).
我主要是在Programmatically set google map fragment visibility (API2)的帮助下弄清楚了这一点。
mMapFragment = (SupportMapFragment) (getSupportFragmentManager()
.findFragmentById(R.id.storefront_map));
ViewGroup.LayoutParams params = mMapFragment.getView().getLayoutParams();
params.height = 900;
mMapFragment.getView().setLayoutParams(params);
回答by Jorgesys
this is an example using onConfigurationChanged()method :
这是使用onConfigurationChanged()方法的示例：
@Override
public void onConfigurationChanged(Configuration newConfig) {
super.onConfigurationChanged(newConfig);
setContentView(R.layout.main);
findViewById(R.id.storefront_map).getLayoutParams().width = 400;
}
回答by Diogo Rosa
Fastest (with less code lines) way i found:
我发现的最快（代码行更少）方式：
ViewGroup.MarginLayoutParams parms = (ViewGroup.MarginLayoutParams) rlLocation.getLayoutParams();
parms.bottomMargin = 100;
parms.topMargin = 100;
回答by Ashish John
You should not fix height of a map... set it according to screen height & width.
您不应该固定地图的高度...根据屏幕高度和宽度进行设置。
DisplayMetrics displaymetrics = new DisplayMetrics();
getActivity().getWindowManager().getDefaultDisplay().getMetrics(displaymetrics);
int height = displaymetrics.heightPixels;
ViewGroup.LayoutParams params = mMapFragment.getView().getLayoutParams();
params.height = height/2;
mMapFragment.getView().setLayoutParams(params);
