The use of Android custom layouts!

Inherit ViewGroup;

The left margin of the custom control, the right margin, the top margin, the bottom margin;

Java code;

Package com.example.customview1406_04myviwegroup;

Import Android.content.Context;
Import Android.util.AttributeSet;
Import Android.view.View;
Import Android.view.ViewGroup;

/**
* A custom layout that specifies how each child control is displayed
*
* @author gsd1403
*
*/
public class Myviewgroup extends ViewGroup {

Public Myviewgroup (context context, AttributeSet Attrs) {
Super (context, attrs);
TODO auto-generated Constructor stub
}

/**
* Measure the size of the control
*/
@Override
protected void onmeasure (int widthmeasurespec, int heightmeasurespec) {
TODO auto-generated Method Stub
Super.onmeasure (Widthmeasurespec, Heightmeasurespec);
Measure the size of a child control
Number of child controls
int childCount = This.getchildcount ();
for (int i = 0; i < ChildCount; i++) {
Get child controls
View view = This.getchildat (i);
View.measure (Widthmeasurespec, Heightmeasurespec);
}
}

public void Setshowview (int index) {
if (Index > This.getchildcount ()) {
Return
}
if (index = = 0) {
View view = This.getchildat (0);
View.setvisibility (view.visible);
This.getchildat (1). setvisibility (View.gone);
} else if (index = = 1) {
This.getchildat (1). setvisibility (view.visible);
This.getchildat (0). setvisibility (View.gone);
}
}

/**
* Specifies how child controls display similar to OnDraw
*/
@Override
protected void OnLayout (Boolean changed, int l, int t, int r, int b) {
Get the first control Text.xml
View view1=this.getchildat (0);
View1.layout (0, 0, view1.getmeasuredwidth (),
View1.getmeasuredheight ());
//
View View2=this.getchildat (1);
View2.layout (), View2.getmeasuredwidth (),
View2.getmeasuredheight ());
int childCount = This.getchildcount ();
int left = 0;
for (int i = 0; i < ChildCount; i++) {
View view = This.getchildat (i);
if (view.getvisibility ()! = View.gone) {
View.layout (left, 0, left + view.getmeasuredwidth (),
View.getmeasuredheight ());
left = left + view.getmeasuredwidth ();
}
}

}

}

Mainactivity Code;

Package com.example.customview1406_04myviwegroup;

Import Android.os.Bundle;
Import android.app.Activity;
Import Android.view.Menu;
Import Android.view.View;
Import Android.view.View.OnClickListener;
Import Android.widget.Button;

public class Mainactivity extends Activity {
Myviewgroup Myviewgroup;
@Override
protected void OnCreate (Bundle savedinstancestate) {
Super.oncreate (savedinstancestate);
Setcontentview (R.layout.activity_main);
myviewgroup= (Myviewgroup) Findviewbyid (R.id.myviewgroup);
Button btnaudio= (button) Findviewbyid (R.id.button_audio);
Btnaudio.setonclicklistener (New Onclicklistener () {

@Override
public void OnClick (View v) {
TODO auto-generated Method Stub
Myviewgroup.setshowview (1);
}
});

Button btntext= (button) Findviewbyid (R.id.button_text);
Btntext.setonclicklistener (New Onclicklistener () {

@Override
public void OnClick (View v) {
TODO auto-generated Method Stub
Myviewgroup.setshowview (0);
}
});
}

@Override
public boolean Oncreateoptionsmenu (Menu menu) {
Inflate the menu; This adds items to the action bar if it is present.
Getmenuinflater (). Inflate (R.menu.main, menu);
return true;
}

}

layout file; code;

<relativelayout xmlns:android= "Http://schemas.android.com/apk/res/android"
Xmlns:tools= "Http://schemas.android.com/tools"
Android:layout_width= "Match_parent"
android:layout_height= "Match_parent"
android:paddingbottom= "@dimen/activity_vertical_margin"
android:paddingleft= "@dimen/activity_horizontal_margin"
android:paddingright= "@dimen/activity_horizontal_margin"
android:paddingtop= "@dimen/activity_vertical_margin"
Tools:context= ". Mainactivity ">

<com.example.customview1406_04myviwegroup. Myviewgroup
Android:id= "@+id/myviewgroup"
Android:layout_width= "Match_parent"
android:layout_height= "Match_parent"
>
<include layout= "@layout/text"/>
<include layout= "@layout/audio"/>
</com.example.customview1406_04myviwegroup. Myviewgroup>

</RelativeLayout>

Click the Audio button after the effect such as;

The use of Android custom layouts!