ButterKnife的使用



步骤：

1、导入butterknife-7.0.1.jar包

2、在声明的组建变量前注入对应要绑定的id，采用@bind(R.id.id名)的形式

3、在对应的activity的oncreate方法中加入：ButterKnife.bind(当前的activity.this);

4、需要注意的，如果采用bind方式注入对应的组件的话，那么该组件对象在声明的时候就不能是static修饰或者private修饰。

5、然后跟jar包里面的方法关联起来，详细配置如下：

选择你的项目右键-->properties-->java compiler-->Annotation Processing-->勾选Enable annotation processing

展开Annotation Processing-->Factory Path-->勾选Enable project specific settings-->Add External JARs...-->选中你的butterknife.jar

butterknife也可以用来注入配置文件中的值，但是需要注意的是，目前StringArray和intArray没有对应的方法进行注入，只能通过老办法获取。

一些常见使用：

 // TextView tv=(TextView) findViewById(R.id.main_tv); @Bind(R.id.main_tv) TextView tv;

 // String name=getResources().getString(R.string.myname); @BindString(R.string.myname) String myname;

 // int white=getResources().getColor(R.color.white); @BindColor(R.color.white) int white;

 // Drawable drawable=getResources().getDrawable(R.drawable.ic_launcher); @BindDrawable(R.drawable.ic_launcher) Drawable drawable;

// class MyView{//  TextView tv;//  ImageView iv;//  public MyView(View v){//   tv=(TextView) v.findViewById(R.id.item_tv);//   iv=(ImageView) v.findViewById(R.id.item_iv);//  }// } class MyView{  @Bind(R.id.item_tv)  TextView tv;  @Bind(R.id.item_iv)  ImageView iv;  public MyView(View v){   ButterKnife.bind(this, v);  } }

//Button bt1=(Button) findViewById(R.id.main_bt1);//bt1.setOnClickListener(new OnClickListener() {////@Override//public void onClick(View v) {//Toast.makeText(MainActivity.this, "点击了按钮1", 1000).show();//}//});@OnClick(R.id.main_bt1)public void bt1_listener(){Toast.makeText(MainActivity.this, "点击了按钮1", 1000).show();}

举个例子：

1、导入butterknife-7.0.1.jar包

2、整体activity_main.xml

<RelativeLayout 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:paddingBottom="@dimen/activity_vertical_margin"    android:paddingLeft="@dimen/activity_horizontal_margin"    android:paddingRight="@dimen/activity_horizontal_margin"    android:paddingTop="@dimen/activity_vertical_margin"    tools:context=".MainActivity" >    <ListView         android:id="@+id/main_list"        android:layout_width="match_parent"        android:layout_height="wrap_content"        /></RelativeLayout>

3、item布局list_item.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:orientation="vertical" >    <LinearLayout         android:layout_width="match_parent"        android:layout_height="wrap_content"        android:orientation="horizontal">        <ImageView         android:id="@+id/item_iv"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:src="@drawable/tx1"/>    <TextView         android:id="@+id/item_tv"        android:layout_width="match_parent"        android:layout_height="match_parent"        android:text="1"/>    </LinearLayout></LinearLayout>

4、在drawable添加图片

tx1.jpg

tx2.jpg

tx3.jpg

tx4.jpg

tx5.jpg

5、java代码

MyAdapter.java

package com.example.binduse;import android.content.Context;import android.view.LayoutInflater;import android.view.View;import android.view.ViewGroup;import android.widget.BaseAdapter;import android.widget.ImageView;import android.widget.TextView;import butterknife.Bind;import butterknife.ButterKnife;public class MyAdapter extends BaseAdapter{private String[] name;private int[] pic;private Context context;public MyAdapter(String[] name, int[] pic, Context context) {super();this.name = name;this.pic = pic;this.context = context;}@Overridepublic int getCount() {// TODO Auto-generated method stubreturn name.length;}@Overridepublic Object getItem(int position) {// TODO Auto-generated method stubreturn name[position];}@Overridepublic long getItemId(int position) {// TODO Auto-generated method stubreturn position;}@Overridepublic View getView(int position, View convertView, ViewGroup parent) {MyView myView;if (convertView==null) {//加载对象LayoutInflater layoutInflater=LayoutInflater.from(context);//实例化加载对象item的view对象convertView=layoutInflater.inflate(R.layout.list_item, parent, false);//实例化内部静态类myView=new MyView(convertView);//设值convertView.setTag(myView);}else {myView=(MyView) convertView.getTag();}//传值myView.iv.setImageResource(pic[position]);myView.tv.setText(name[position]);return convertView;}class MyView{@Bind(R.id.item_tv)TextView tv;@Bind(R.id.item_iv)ImageView iv;public MyView(View v){ButterKnife.bind(this, v);}}}

MainActivity.java

package com.example.binduse;import android.app.Activity;import android.os.Bundle;import android.widget.ListView;import butterknife.Bind;import butterknife.ButterKnife;public class MainActivity extends Activity {private String[] name={"工藤新一","毛利兰","毛利小五郎","怪盗基德","灰原哀"};private int[] id={R.drawable.tx1,R.drawable.tx2,R.drawable.tx3,R.drawable.tx4,R.drawable.tx5};@Bind(R.id.main_list)ListView list;@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.activity_main);ButterKnife.bind(MainActivity.this);MyAdapter simple=new MyAdapter(name, id, MainActivity.this);list.setAdapter(simple);}}