"Android Custom Controls" linearlayout define Actionbar Styles

In fact, we see all actionbar plainly, is a custom linearlayout or relatedlayout; Practice Today LinearLayout

Custom.

There are several LinearLayout customization methods:

1. Customize the XML layout, then load the layout and customize a view inheritance LinearLayout

2. declare all its child elements in the custom control, and then layout in the layout file as if you were using LinearLayout .

The second is annoying, it needs to define the child elements in the layout file, to match the child elements in Code onfinishinflate () .

Let me just say how to load the layout file.

First: Define the layout file.

<?xml version= "1.0" encoding= "Utf-8"? ><linearlayout xmlns:android= "http://schemas.android.com/apk/res/ Android "Android:layout_width=" Fill_parent "android:layout_height=" fill_parent "android:orientation=" Horizontal " > <imageview android:id= "@+id/imageview1" android:layout_width= "Wrap_content" android:layout _height= "Wrap_content" android:layout_gravity= "center_vertical" android:paddingbottom= "5dip" Android:        paddingleft= "40dip" android:paddingtop= "5dip" android:src= "@drawable/right_icon"/> <textview        Android:id= "@+id/textview1" android:layout_width= "wrap_content" android:layout_height= "Wrap_content" Android:layout_gravity= "center_vertical" android:layout_marginleft= "8dip" android:text= "Theme" Android    : textcolor= "#000000"/> <linearlayout android:layout_width= "100DP" android:layout_height= "Fill_parent" android:orientation= "Horizontal" > <imageview android:id= "@+id/imageview2" android:layout_width= "Wrap_content" Android:layo ut_height= "Wrap_content" android:layout_gravity= "center_vertical" android:paddingbottom= "5dip" Androi        d:paddingleft= "12dip" android:paddingtop= "5dip" android:src= "@drawable/home_icon"/> <imageview        Android:id= "@+id/imageview3" android:layout_width= "wrap_content" android:layout_height= "Wrap_content"        Android:layout_gravity= "center_vertical" android:paddingbottom= "5dip" android:paddingleft= "12dip" android:paddingtop= "5dip" android:src= "@drawable/add_icon"/></linearlayout></linearlayout>

Next, customize a mylinearlayout inheritanceLinearLayout, and load the layout file that you just wrote.

public class Mylinearlayout extends LinearLayout {private ImageView imageview,iv_home,iv_add;private TextView TextView; Public Mylinearlayout (Context context) {super (context);//TODO auto-generated constructor stub}public Mylinearlayout ( Context context, AttributeSet Attrs) {Super (context, attrs);//TODO auto-generated constructor Stublayoutinflater Inflater= (Layoutinflater) Context.getsystemservice (Context.layout_inflater_service); Inflater.inflate ( R.layout.actionbar, this); imageview= (ImageView) Findviewbyid (r.id.imageview1); Iv_home= (ImageView) Findviewbyid ( R.ID.IMAGEVIEW2); iv_add= (ImageView) Findviewbyid (R.ID.IMAGEVIEW3); textview= (TextView) Findviewbyid ( R.ID.TEXTVIEW1);}      /** * Set Picture resource */public void Setimageresource (int resId) {imageview.setimageresource (resId);      }/** * Sets the text displayed */public void Settextviewtext (String text) {textview.settext (text); }  }

Again: Use a defined mylinearlayout control when needed

<?xml version= "1.0" encoding= "Utf-8"? ><linearlayout xmlns:android= "http://schemas.android.com/apk/res/ Android "    android:layout_width=" fill_parent "    android:layout_height=" fill_parent "    android:o rientation= "Horizontal" >    <cn.com.demo.view.mylinearlayout        android:id= "@+id/ll_actionbar"        android:layout_height= "Fill_parent<span style=" Font-family:tahoma, ' Microsoft Yahei ', SimSun; " > "  </span>        android:layout_width=" wrap_content "        android:background=" @drawable/bg "          / ></LinearLayout>