Android自定义通用标题栏CustomTitleBar

本文实例为大家分享了android自定义通用标题栏的具体代码，供大家参考，具体内容如下/p>

1自定义一个public_titlebar.xml文件

<?xml version="1.0" encoding="utf-8"?>
<linearlayout xmlns:android="http://schemas.android.com/apk/res/android"
 android:id="@+id/rootview"
 android:layout_width="match_parent"
 android:layout_height="wrap_content"
 android:orientation="horizontal">
 <imageview
  android:id="@+id/ivleft"
  android:layout_width="wrap_content"
  android:layout_height="wrap_content"
  android:src="@drawable/z"/>
 <linearlayout
  android:layout_width="wrap_content"
  android:layout_height="match_parent"
  android:layout_weight="1">
  <textview
   android:id="@+id/tvtitle"
   android:layout_width="match_parent"
   android:layout_height="wrap_content"
   android:layout_weight="1"
   android:text="tvtitle"/>
  <textview
   android:id="@+id/tvright"
   android:layout_width="match_parent"
   android:layout_height="wrap_content"
   android:layout_weight="1"
   android:text="tvright"/>
 </linearlayout>
</linearlayout>

2.在values文件夹下新建一个attrs.xml

<?xml version="1.0" encoding="utf-8"?>
 <resources>
 <declare-styleable name="customertitlebar">
  <attr name="left_image" format="reference"></attr>
  <attr name="center_text" format="string"></attr>
  <attr name="center_text_color" format="color"></attr>
  <attr name="center_text_size" format="dimension"></attr>
 </declare-styleable>
 </resources>

3.自定义customertitlebar类继承linearlayout，统一页面标题栏，项目中包括接口回调

public class customertitlebar extends linearlayout {
private linearlayout rootview;
private imageview ivleft;
private textview tvtitle;
private textview tvright;
//3.声明回调对象
private customerclick leftclick;

/**
 * @param context
 */
//在代码中直接new一个custom view实例的时候,会调用第一个构造函数
public customertitlebar(context context) {
 this(context,null);
}

//在xml布局文件中调用custom view的时候,会调用第二个构造函数
public customertitlebar(context context,attributeset attrs) {
 this(context, attrs,-1);
}

//在xml布局文件中调用custom view,并且custom view标签中还有自定义属性时,这里调用的还是第二个构造函数.
public customertitlebar(context context,attributeset attrs, int defstyleattr) {
 super(context, attrs, defstyleattr);
 init(context);
 initattrs(context,attrs);
 initlister();
}

private void init(context context) {
 rootview= (linearlayout) view.inflate(context,r.layout.layout_customer_title_bar,this);
 ivleft=rootview.findviewbyid(r.id.ivleft);
 tvtitle=rootview.findviewbyid(r.id.tvtitle);
 tvright=rootview.findviewbyid(r.id.tvright);
}

private void initattrs(context context, attributeset attrs) {
 typedarray typedarray=context.obtainstyledattributes(attrs,r.styleable.customertitlebar);
 drawable drawable=typedarray.getdrawable(r.styleable.customertitlebar_left_image);
 if (drawable!=null){
  ivleft.setimagedrawable(drawable);
 }
 charsequence text = typedarray.gettext(r.styleable.customertitlebar_center_text);
 if (!textutils.isempty(text)) {
  tvtitle.settext(text);
 }
 int color = typedarray.getcolor(r.styleable.customertitlebar_center_text_color, -1);

 if (color != -1) {
  tvtitle.settextcolor(color);
 }

 float dimension = typedarray.getdimension(r.styleable.customertitlebar_center_text_size, 0f);

 tvtitle.settextsize(dimension);
}

private void initlister() {
 ivleft.setonclicklistener(new onclicklistener() {
  @override
  public void onclick(view v) {
   //5.使用接口回调
   if (leftclick!=null){
    leftclick.onlefclick(v);
   }
  }
 });
}
//4、提供回调对象的set方法
public void setleftclick(customerclick leftclick) {
 this.leftclick = leftclick;
}
//1.定义回调接口
interface customerclick{
 void onlefclick(view view);
}
}

4.在布局文件中的引用

<com.cn.jyx.customertitlebar.customertitlebar
 android:id="@+id/cttitle"
 android:layout_width="match_parent"
 android:layout_height="wrap_content"
 android:gravity="center"
 customer:center_text="吐泡泡"
 customer:center_text_color="#ff00ff"
 customer:center_text_size="20sp" />

5.在activity中的用法

public class mainactivity extends appcompatactivity {
 private customertitlebar cttitle;
 @override
 protected void oncreate(bundle savedinstancestate) {
  super.oncreate(savedinstancestate);
  setcontentview(r.layout.activity_main);
  cttitle=findviewbyid(r.id.cttitle);
  //6、使用
  cttitle.setleftclick(new customertitlebar.customerclick() {
   @override
   public void onlefclick(view view) {
    toast.maketext(mainactivity.this,"吐泡泡",toast.length_long).show();
   }
  });
}
}

以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持。