一.插件安装

command+逗号，打开设置界面，左边栏搜索Plugins，点击Browse repositories...

Snip20170118_6.png

搜索Android Code Generator，点击安装，重启Android Studio即可

Snip20170118_7.png

一.插件使用

首先准备好布局文件activity_text.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"
    android:layout_gravity="center_horizontal"
    android:orientation="vertical">

    <TextView
        android:id="@+id/text1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="center_horizontal"
        android:layout_marginTop="20dp"
        android:text="测试一"/>

    <TextView
        android:id="@+id/text2"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="center_horizontal"
        android:layout_marginTop="20dp"
        android:text="测试一"/>


    <TextView
        android:id="@+id/text3"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="center_horizontal"
        android:layout_marginTop="20dp"
        android:text="测试一"/>


    <TextView
        android:id="@+id/text4"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="center_horizontal"
        android:layout_marginTop="20dp"
        android:text="测试一"/>

    <TextView
        android:id="@+id/text5"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="center_horizontal"
        android:layout_marginTop="20dp"
        android:text="测试一"/>

</LinearLayout>

在布局文件layout中选中布局，右击，选择Android Code Generator

Snip20170118_9.png

从上图可以看出，可以自动生成Activity、Adapter和Fragment
也可以和ButterKnife结合使用。

自动生成Activity

原始的findViewById

a.gif

自动生成代码

package com.zhoujian.butterknife;

import android.os.Bundle;
import android.app.Activity;
import android.widget.TextView;

public class ActivityTextActivity extends Activity  
{
    private TextView text1;
    private TextView text2;
    private TextView text3;
    private TextView text4;
    private TextView text5;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_text);
        text1 = (TextView) findViewById(R.id.text1);
        text2 = (TextView) findViewById(R.id.text2);
        text3 = (TextView) findViewById(R.id.text3);
        text4 = (TextView) findViewById(R.id.text4);
        text5 = (TextView) findViewById(R.id.text5);
    }
}

和ButterKnife结合使用

b.gif

自动生成代码

package com.zhoujian.butterknife;

import android.app.Activity;
import android.os.Bundle;
import android.widget.TextView;
import butterknife.BindView;
import butterknife.ButterKnife;

public class ActivityTextActivity extends Activity  {

    @BindView(R.id.text1) TextView text1;
    @BindView(R.id.text2) TextView text2;
    @BindView(R.id.text3) TextView text3;
    @BindView(R.id.text4) TextView text4;
    @BindView(R.id.text5) TextView text5;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_text);
        ButterKnife.bind(this);
    }
}

注意：和ButterKnife结合使用时候，@Bind要改成@BindView

自动生成Adapter

package com.zhoujian.butterknife;

import android.content.Context;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.TextView;
import butterknife.BindView;
import butterknife.ButterKnife;

import static android.icu.lang.UCharacter.GraphemeClusterBreak.T;

public class ActivityTextAdapter extends BaseAdapter {

    private List<T> objects = new ArrayList<T>();

    private Context context;
    private LayoutInflater layoutInflater;

    public ActivityTextAdapter(Context context) {
        this.context = context;
        this.layoutInflater = LayoutInflater.from(context);
    }

    @Override
    public int getCount() {
        return objects.size();
    }

    @Override
    public T getItem(int position) {
        return objects.get(position);
    }

    @Override
    public long getItemId(int position) {
        return position;
    }

    @Override
    public View getView(int position, View convertView, ViewGroup parent) {
        if (convertView == null) {
            convertView = layoutInflater.inflate(R.layout.activity_text, null);
            convertView.setTag(new ViewHolder(convertView));
        }
        initializeViews((T)getItem(position), (ViewHolder) convertView.getTag());
        return convertView;
    }

    private void initializeViews(T object, ViewHolder holder) {
        //TODO implement
    }

    static class ViewHolder {
    @BindView(R.id.text1) TextView text1;
    @BindView(R.id.text2) TextView text2;
    @BindView(R.id.text3) TextView text3;
    @BindView(R.id.text4) TextView text4;
    @BindView(R.id.text5) TextView text5;

        ViewHolder(View view) {
            ButterKnife.bind(this, view);
        }
    }
}

注： private List<T> objects = new ArrayList<T>()改成你需要的返回值类型

自动生成Fragment

package com.zhoujian.butterknife;

import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.TextView;
import butterknife.BindView;
import butterknife.ButterKnife;
import butterknife.Unbinder;

public class ActivityTextFragment extends Fragment  {

    @BindView(R.id.text1) TextView text1;
    @BindView(R.id.text2) TextView text2;
    @BindView(R.id.text3) TextView text3;
    @BindView(R.id.text4) TextView text4;
    @BindView(R.id.text5) TextView text5;
    private Unbinder mBind;

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
                             Bundle savedInstanceState) {
        return inflater.inflate(R.layout.activity_text, null);
    }

    @Override
    public void onViewCreated(View view, Bundle savedInstanceState) {
        super.onViewCreated(view, savedInstanceState);
        mBind = ButterKnife.bind(this, view);
        
    }

    @Override
    public void onDestroyView() {
        super.onDestroyView();
        mBind.unbind();
    }
}