Android自定义简单的顶部标题栏

<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
  xmlns:app="http://schemas.android.com/apk/res-auto"
  xmlns:tools="http://schemas.android.com/tools"
  android:layout_width="match_parent"
  android:layout_height="50dp">
 
  <ImageView
    android:id="@+id/iv_back"
    android:layout_width="30dp"
    android:layout_height="30dp"
    android:layout_marginLeft="20dp"
    android:src="@drawable/icon_back"
    app:layout_constraintBottom_toBottomOf="parent"
    app:layout_constraintTop_toTopOf="parent" />
 
  <TextView
    android:id="@+id/tv_title"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:text="标题"
    android:textColor="#000"
    android:textSize="16sp"
    app:layout_constraintBottom_toBottomOf="parent"
    app:layout_constraintLeft_toLeftOf="parent"
    app:layout_constraintRight_toRightOf="parent"
    app:layout_constraintTop_toTopOf="parent" />
 
  <TextView
    android:id="@+id/tv_more"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:text="更多"
    android:textColor="#000"
    android:textSize="16sp"
    app:layout_constraintBottom_toBottomOf="parent"
    app:layout_constraintRight_toRightOf="parent"
    app:layout_constraintTop_toTopOf="parent" />
 
  <ImageView
    android:id="@+id/iv_more"
    android:layout_width="30dp"
    android:layout_height="30dp"
    android:src="@drawable/icon_more"
    app:layout_constraintBottom_toBottomOf="parent"
    app:layout_constraintRight_toRightOf="parent"
    app:layout_constraintTop_toTopOf="parent" />
 
</android.support.constraint.ConstraintLayout>

import android.content.Context;
import android.content.res.TypedArray;
import android.util.AttributeSet;
import android.view.LayoutInflater;
import android.view.View;
import android.widget.ImageView;
import android.widget.RelativeLayout;
import android.widget.TextView;
 
/**
 * @Author : 张
 * @Email : manitozhang@foxmail.com
 * @Date : 2018/9/19
 *
 * 一个简单的自定义标题栏
 */
 
public class CustomTitleBar extends RelativeLayout {
 
  private ImageView ivBack;
  private TextView tvTitle;
  private TextView tvMore;
  private ImageView ivMore;
 
  public CustomTitleBar(Context context, AttributeSet attrs) {
    super(context, attrs);
 
    initView(context,attrs);
  }
 
  //初始化视图
  private void initView(final Context context, AttributeSet attributeSet) {
    View inflate = LayoutInflater.from(context).inflate(R.layout.layout_titlebar, this);
    ivBack = inflate.findViewById(R.id.iv_back);
    tvTitle = inflate.findViewById(R.id.tv_title);
    tvMore = inflate.findViewById(R.id.tv_more);
    ivMore = inflate.findViewById(R.id.iv_more);
 
    init(context,attributeSet);
  }
 
  //初始化资源文件
  public void init(Context context, AttributeSet attributeSet){
    TypedArray typedArray = context.obtainStyledAttributes(attributeSet, R.styleable.CustomTitleBar);
    String title = typedArray.getString(R.styleable.CustomTitleBar_title);//标题
    int leftIcon = typedArray.getResourceId(R.styleable.CustomTitleBar_left_icon, R.drawable.icon_back);//左边图片
    int rightIcon = typedArray.getResourceId(R.styleable.CustomTitleBar_right_icon, R.drawable.icon_more);//右边图片
    String rightText = typedArray.getString(R.styleable.CustomTitleBar_right_text);//右边文字
    int titleBarType = typedArray.getInt(R.styleable.CustomTitleBar_titlebar_type, 10);//标题栏类型,默认为10
 
    //赋值进去我们的标题栏
    tvTitle.setText(title);
    ivBack.setImageResource(leftIcon);
    tvMore.setText(rightText);
    ivMore.setImageResource(rightIcon);
 
    //可以传入type值,可自定义判断值
    if(titleBarType == 10){//不传入,默认为10,显示更多 文字,隐藏更多图标按钮
      ivMore.setVisibility(View.GONE);
      tvMore.setVisibility(View.VISIBLE);
    }else if(titleBarType == 11){//传入11,显示更多图标按钮,隐藏更多 文字
      tvMore.setVisibility(View.GONE);
      ivMore.setVisibility(View.VISIBLE);
    }
  }
 
  //左边图片点击事件
  public void setLeftIconOnClickListener(OnClickListener l){
    ivBack.setOnClickListener(l);
  }
 
  //右边图片点击事件
  public void setRightIconOnClickListener(OnClickListener l){
    ivBack.setOnClickListener(l);
  }
 
  //右边文字点击事件
  public void setRightTextOnClickListener(OnClickListener l){
    ivBack.setOnClickListener(l);
  }
}

<?xml version="1.0" encoding="utf-8"?>
<resources>
 
  <declare-styleable name="CustomTitleBar">
    <attr name="title" format="string"/>
    <attr name="left_icon" format="reference"/>
    <attr name="right_icon" format="reference"/>
    <attr name="right_text" format="string"/>
    <attr name="titlebar_type" format="integer"/>
  </declare-styleable>
 
</resources>

<com.titlebar.CustomTitleBar
    android:id="@+id/titlebar"
    android:background="#DCDCDC"
    app:right_icon="@drawable/icon_more"
    app:right_text="更多"
    app:titlebar_type="11"
    app:left_icon="@drawable/icon_back"
    app:title="我是标题"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"></com.titlebar.CustomTitleBar>

CustomTitleBar titleBar = findViewById(R.id.titlebar);
    titleBar.setLeftIconOnClickListener(new View.OnClickListener() {
      @Override
      public void onClick(View v) {
        Toast.makeText(MainActivity.this, "左边", Toast.LENGTH_SHORT).show();
      }
    });