Android组合控件自定义标题栏

package com.example.customview;

import android.support.v7.app.ActionBar;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.Toast;

/*
 android自定义标题组合控件
 步骤：
 1.首先写出需要功能的布局xml，分析布局的父控件是谁？
 例如水平布局 父控件应该是linearlayout较为合适
 2.创建自定义控件类并继承xml父控件
 3.在构造方法中使用layoutInflat动态加载布局
 */
public class MainActivity extends AppCompatActivity {

 @Override
 protected void onCreate(Bundle savedInstanceState) {
  super.onCreate(savedInstanceState);
  setContentView(R.layout.activity_main);
  //去除自带标题栏
  ActionBar actionBar = getSupportActionBar();
  if (actionBar != null) {
   actionBar.hide();
  }
 }

}

package com.example.customview.custom;

import android.app.Activity;
import android.content.Context;
import android.util.AttributeSet;
import android.view.LayoutInflater;
import android.view.View;
import android.widget.Button;
import android.widget.LinearLayout;
import android.widget.TextView;
import android.widget.Toast;

import com.example.customview.R;

/**
 * 自定义标题栏 并赋有点击事件
 */
public class TitleLayout extends LinearLayout implements View.OnClickListener {
 private Button btback, btopen;
 private TextView tvtitle;

 public TitleLayout(Context context, AttributeSet attrs) {
  super(context, attrs);
  //动态加载标题栏布局
  LayoutInflater.from(context).inflate(R.layout.custom_layout, this);
  initView();
 }

 private void initView() {//初始化控件
  btback = (Button) findViewById(R.id.btback);
  btback.setOnClickListener(this);
  btopen = (Button) findViewById(R.id.btopen);
  btopen.setOnClickListener(this);
  tvtitle = (TextView) findViewById(R.id.tvtitle);
  tvtitle.setOnClickListener(this);
 }

 @Override
 public void onClick(View view) {//监听点击事件
  switch (view.getId()) {
   case R.id.btback:
    ((Activity) getContext()).finish();
    Toast.makeText(getContext(), "销毁当前Activity", Toast.LENGTH_SHORT).show();
    break;
   case R.id.btopen:
    Toast.makeText(getContext(), "展开", Toast.LENGTH_SHORT).show();
    break;
   case R.id.tvtitle:
    Toast.makeText(getContext(), "标题", Toast.LENGTH_SHORT).show();
    break;
  }
 }
}

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout 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:orientation="vertical"
 tools:context="com.example.customview.MainActivity">

 <include layout="@layout/custom_layout" />

 <com.example.customview.custom.TitleLayout
  android:layout_width="match_parent"
  android:layout_height="wrap_content" />
</LinearLayout>

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout 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:orientation="vertical"
 tools:context="com.example.customview.MainActivity">

 <include layout="@layout/custom_layout" />

 <com.example.customview.custom.TitleLayout
  android:layout_width="match_parent"
  android:layout_height="wrap_content" />
</LinearLayout>