創建自定義控件

創建自定義控件

1.新建一個類TitleLayout

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

public class TitleLayout extends LinearLayout{

    public TitleLayout(Context context, @Nullable AttributeSet attrs) {
        super(context, attrs);
        LayoutInflater.from(context).inflate(R.layout.title,this);

       Button titleBack = (Button) findViewById(R.id.title_back);
       Button titleEdit = (Button) findViewById(R.id.title_edit);
        titleBack.setOnClickListener(new OnClickListener() {
            @Override
            public void onClick(View v) {
                ((Activity)(getContext())).finish();
            }
        });

        titleEdit.setOnClickListener(new OnClickListener() {
            @Override
            public void onClick(View v) {
                Toast.makeText(getContext(),"you click edit",
                        Toast.LENGTH_SHORT).show();
            }
        });
    }
}

2.修改activity_main.xml:

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent">
    <com.example.uilayouttest.TitleLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content">

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

    </com.example.uilayouttest.TitleLayout>

</LinearLayout>