How to draw a border around a mapview
i am trying to draw a margin around my mapView when a button is clicked.
So this is what i have tried and it does not work. The mapview is inside a relative layout.
LayoutInflater inflater = getLayoutInflater();
LinearLayout mView = (LinearLayout) inflater.inflate(
R.layout.map_view_create_ps, mapView, false);
GeoPoint viewLoc = mapView.getMapCenter();
MapView.LayoutParams params = new MapView.LayoutParams(
LayoutParams.FILL_PARENT, LayoutParams.FILL_PARENT,
viewLoc,
MapView.LayoutParams.BOTTOM_CENTER);
mView.setLayoutParams(params);
mapView.addView(mView);
mView.setVisibility(View.VISIBLE);
The above is called when the button is clicked
my create_ps_layout is as such
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout x开发者_如何学JAVAmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical" android:layout_width="fill_parent"
android:layout_height="fill_parent" android:background="@android:color/transparent">
<LinearLayout android:layout_width="fill_parent"
android:id="@+id/linearLayout1" android:orientation="vertical"
android:layout_height="fill_parent"
android:background="@drawable/rounded_boarder"></LinearLayout>
</LinearLayout>
And the drawable background is like this
<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android"
android:shape="rectangle" android:padding="10dp">
<solid android:color="@color/translucent_black" />
<corners android:bottomRightRadius="30dp"
android:bottomLeftRadius="30dp" android:topLeftRadius="30dp"
android:topRightRadius="30dp" />
<stroke android:width="2dip" android:color="#FFB600"/>
</shape>
This does not work, but could you guys point me in the correct direction on how to draw a border around the mapview when the button is selected?
put you mapview in one RelativeLayout and set padding property of the RelativeLayout as follow:
<RelativeLayout
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical" android:layout_weight="1"
android:background="#444" android:padding="2dp">
<com.google.android.maps.MapView
android:id="@+id/mapView"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:apiKey="YOUR-MAP-KEY"
android:clickable="true"/>
</RelativeLayout>
Follow these steps :
1- Create image_border.xml in the drawable with the below code :
<?xml version="1.0" encoding="utf-8"?>
<layer-list xmlns:android="http://schemas.android.com/apk/res/android" >
<item>
<shape android:shape="rectangle" >
<gradient
android:angle="90"
android:centerColor="#30ffffff"
android:endColor="#30ffffff"
android:startColor="#30ffffff" />
</shape>
</item>
<item
>
<shape android:shape="rectangle" >
<solid android:color="#30ffffff" />
</shape>
</item>
2- create another XML image_borderless.xml in the drawable with the below code :
<?xml version="1.0" encoding="utf-8"?>
<layer-list xmlns:android="http://schemas.android.com/apk/res/android" >
<item>
<shape android:shape="rectangle" >
<gradient
android:angle="90"
></gradient>
</shape>
</item>
<item
>
<shape android:shape="rectangle" >
</shape>
</item>
3- in your onClick implementation add this code :
wp1.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
//wp1 to add a boarder if selected
wp1.setBackgroundDrawable(getResources().getDrawable(
R.drawable.image_border));
wp1.setPadding(8, 8, 8, 8);
//wp3 to hide the boarder if not selected
wp3.setBackgroundDrawable(getResources().getDrawable(
R.drawable.image_borderless));
}
});
create layer list as follows.and add it as a background to your relative layout.this will give a border with a drop shadow
here is the link for further details http://www.uifuel.com/android-creating-a-drop-shadow-in-xml-layout/
<?xml version="1.0" encoding="utf-8"?>
<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
<!-- Drop Shadow Stack -->
<item>
<shape>
<padding android:top="1dp" android:right="1dp" android:bottom="1dp" android:left="1dp" />
<solid android:color="#00CCCCCC" />
</shape>
</item>
<item>
<shape>
<padding android:top="1dp" android:right="1dp" android:bottom="1dp" android:left="1dp" />
<solid android:color="#10CCCCCC" />
</shape>
</item>
<item>
<shape>
<padding android:top="1dp" android:right="1dp" android:bottom="1dp" android:left="1dp" />
<solid android:color="#20CCCCCC" />
</shape>
</item>
<item>
<shape>
<padding android:top="1dp" android:right="1dp" android:bottom="1dp" android:left="1dp" />
<solid android:color="#30CCCCCC" />
</shape>
</item>
<item>
<shape>
<padding android:top="1dp" android:right="1dp" android:bottom="1dp" android:left="1dp" />
<solid android:color="#50CCCCCC" />
</shape>
</item>
<!-- Background -->
<item>
<shape>
<solid android:color="@color/white" />
<corners android:radius="3dp" />
</shape>
</item>
</layer-list>
Create a simple stroke rectangle drawable (an xml shape) and toggle it on you map view. Here is a sample. I use a SurfaceView instead of the MapView for simplicity, it should work pretty same.
res/drawable/red_frame.xml:
<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android" android:shape="rectangle">
<stroke android:color="#ff0000" android:width="3dp"/>
<padding android:left="3dp" android:top="3dp" android:right="3dp" android:bottom="3dp" />
</shape>
res/layout/activity_main.xml:
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent">
<CheckBox
android:id="@+id/frame_switch"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerHorizontal="true"
android:text="Show frame" />
<SurfaceView
style="@android:style/TextAppearance.Large"
android:id="@+id/target"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_below="@id/frame_switch"/>
</RelativeLayout>
And finally the Java glue – MainActivity.java:
public class MainActivity extends Activity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
final View target = findViewById(R.id.target);
final CheckBox checkbox = (CheckBox) findViewById(R.id.frame_switch);
checkbox.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
@Override
public void onCheckedChanged(CompoundButton compoundButton, boolean isChecked) {
target.setBackgroundResource(isChecked ? R.drawable.red_frame : 0);
}
});
}
}
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