在Android Studio2.3.1上配置BufferKnife和Icepick

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BufferKnife和Icepick都是常用的Android开源框架，前者可以避免在代码里写大量的findViewById，后者可以避免在Activity恢复时重新设置状态的麻烦。

具体的使用方法，Github上有详细的介绍：

https://github.com/JakeWharton/butterknife

https://github.com/frankiesardo/icepick

这里要讲的是如何在Android Studio上配置这两个框架。

其实很简单，只要设置好gradle文件即可：

就是这两个文件，我的设置如下，大家可以根据实际情况添加。（红色是需要添加的部分）

Project的build.gradle：

// Top-level build file where you can add configuration options common to all sub-projects/modules.buildscript {    repositories {        jcenter()    }    dependencies {        classpath 'com.android.tools.build:gradle:2.3.1'        classpath 'com.neenbedankt.gradle.plugins:android-apt:1.8'        classpath 'com.jakewharton:butterknife-gradle-plugin:8.5.1'        // NOTE: Do not place your application dependencies here; they belong        // in the individual module build.gradle files    }}allprojects {    repositories {        jcenter()        maven {url "https://clojars.org/repo/"}    }}task clean(type: Delete) {    delete rootProject.buildDir}

Moudle:app的build.gradle：

apply plugin: 'com.android.application'apply plugin: 'com.neenbedankt.android-apt'apply plugin: 'com.jakewharton.butterknife'android {    compileSdkVersion 25    buildToolsVersion "25.0.0"    defaultConfig {        applicationId "xxxxxxxxxxx"        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(include: ['*.jar'], dir: 'libs')    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'    compile 'com.jakewharton:butterknife:8.5.1'    apt 'com.jakewharton:butterknife-compiler:8.5.1'    testCompile 'junit:junit:4.12'    compile 'frankiesardo:icepick:3.2.0'    apt 'frankiesardo:icepick-processor:3.2.0'}

设置完之后Rebuild即可。

然后就可以在项目中使用这两个框架了：

import android.app.Activity;import android.content.Intent;import android.os.Bundle;import android.support.annotation.LayoutRes;import android.support.v7.app.AppCompatActivity;import android.util.Log;import android.widget.Toast;import butterknife.ButterKnife;import icepick.Icepick;/** * Created by Shensheng on 2017/4/12. * 集成了ButterKnife和Icepick控件的Activity */abstract public class KBaseActivity extends AppCompatActivity {    @LayoutRes    abstract protected int getContentViewId();    abstract protected void init();    @Override    protected void onCreate(Bundle savedInstanceState){        super.onCreate(savedInstanceState);        setContentView(getContentViewId());        ButterKnife.bind(this);        init();        Icepick.restoreInstanceState(this,savedInstanceState);    }    @Override    public void onSaveInstanceState(Bundle savedInstanceState){        super.onSaveInstanceState(savedInstanceState);        Icepick.saveInstanceState(this,savedInstanceState);    }    public void startActivity(Class<Activity> c){        Intent intent=new Intent(this,c);        startActivity(intent);    }    public void startActivityForResult(Class<Activity> c,int requestCode,Bundle bundle){        Intent intent = new Intent(this,c);        startActivityForResult(intent,requestCode);    }    public void makeShortToast(String message){        Toast.makeText(this,message,Toast.LENGTH_SHORT).show();    }    public void log_d(String message){        Log.d(getClass().getSimpleName(),message);    }    public void log_e(String message){        Log.e(getClass().getSimpleName(),message);    }}

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