Butter Knife 控件绑定

1.导包及设置
将下方代码添加到对应的地方

compile 'com.jakewharton:butterknife:8.8.1'annotationProcessor 'com.jakewharton:butterknife-compiler:8.8.1'

apply plugin: 'com.jakewharton.butterknife'

mavenCentral()

 classpath 'com.jakewharton:butterknife-gradle-plugin:8.8.1'

例子：

// Top-level build file where you can add configuration options common to all sub-projects/modules.buildscript {    repositories {        jcenter()        mavenCentral()    }    dependencies {        classpath 'com.android.tools.build:gradle:2.3.3'        //控件绑定jar        classpath 'com.jakewharton:butterknife-gradle-plugin:8.8.1'        // NOTE: Do not place your application dependencies here; they belong        // in the individual module build.gradle files    }}allprojects {    repositories {        jcenter()    }}task clean(type: Delete) {    delete rootProject.buildDir}

apply plugin: 'com.android.application'//控件绑定apply plugin: 'com.jakewharton.butterknife'android {    compileSdkVersion 25    buildToolsVersion "26.0.1"    defaultConfig {        applicationId "com.imsjw"        minSdkVersion 15        targetSdkVersion 25        versionCode 1        versionName "1.0"        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"    }    buildTypes {        release {            minifyEnabled false            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'        }    }}dependencies {    compile fileTree(dir: 'libs', include: ['*.jar'])    androidTestCompile('com.android.support.test.espresso:espresso-core:2.2.2', {        exclude group: 'com.android.support', module: 'support-annotations'    })    compile 'com.android.support:appcompat-v7:25.3.1'    compile 'com.android.support.constraint:constraint-layout:1.0.2'    //butterknife(控件绑定)    compile 'com.jakewharton:butterknife:8.8.1'    annotationProcessor 'com.jakewharton:butterknife-compiler:8.8.1'    //测试    testCompile 'junit:junit:4.12'}

2.初始化

import android.os.Bundle;import android.support.annotation.Nullable;import android.support.v7.app.AppCompatActivity;import butterknife.ButterKnife;public abstract class BaseActivity extends AppCompatActivity {    @Override    protected void onCreate(@Nullable Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(getContentViewId());        ButterKnife.bind(this);    }    public abstract int getContentViewId();}

3.构建布局

<?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">    <Button        android:id="@+id/testBtn"        android:layout_width="match_parent"        android:layout_height="match_parent"        android:text="按钮" /></LinearLayout>

4.使用

import android.os.Bundle;import android.support.annotation.Nullable;import android.support.v7.widget.LinearLayoutManager;import com.imsjw.R;import com.imsjw.adpater.IndexNavAdpater;import com.imsjw.base.BaseActivity;import com.imsjw.entity.VideoWeb;import com.superrecycleview.superlibrary.recycleview.SuperRecyclerView;import java.util.ArrayList;import java.util.List;import butterknife.BindView;public class MainActivity extends BaseActivity {    @BindView(R.id.testBtn)    Button testBtn;    @Override    protected void onCreate(@Nullable Bundle savedInstanceState) {        super.onCreate(savedInstanceState);    }    @Override    public int getContentViewId() {        return R.layout.index_activity;    }}