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ChenShao_sina
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AppCompatActivity
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‎app/src/main/java/io/github/youngpeanut/designpatterns/TemplateMethod/README.md‎

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Activity／Fragment中onCreate、onStart。。之类，多少也体现了模版方法模式
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所以，看山不是山

‎app/src/main/java/io/github/youngpeanut/designpatterns/TemplateMethod/demo1/AbstractRead.java‎

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package io.github.youngpeanut.designpatterns.TemplateMethod.demo1;
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/**
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* An abstract class which can get content from a file or a HTTP URL
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* or other resource
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*/
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public abstract class AbstractRead {
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protected String resource;
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public void getContent() { // Template Method
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if(open()) {
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readContent();
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close();
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}
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}
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public void setResource(String s) {
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resource = s;
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}
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protected abstract boolean open();
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protected abstract void readContent();
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protected abstract void close();
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}

‎app/src/main/java/io/github/youngpeanut/designpatterns/TemplateMethod/demo1/ReadFile.java‎

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package io.github.youngpeanut.designpatterns.TemplateMethod.demo1;
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/**
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* A concrete class extends AbstractRead
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* This class can read from a file
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*/
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import java.io.*;
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public class ReadFile extends AbstractRead {
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private BufferedReader in = null;
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public ReadFile() {
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}
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public ReadFile(String fileName) {
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resource = fileName;
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}
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protected boolean open() {
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try {
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in = new BufferedReader(new FileReader(resource));
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} catch(IOException e) {
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System.out.println("Can not open file!");
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return false;
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}
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return true;
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}
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protected void readContent() {
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try {
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if(in != null) {
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String str;
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while((str = in.readLine()) != null) {
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System.out.println(str);
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}
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}
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} catch(IOException e) {
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System.out.println("Read file error !");
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}
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}
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protected void close() {
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if(in != null) {
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try {
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in.close();
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} catch(IOException e) {
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System.out.println("IO error !");
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}
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}
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}
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}

‎app/src/main/java/io/github/youngpeanut/designpatterns/TemplateMethod/demo1/ReadHtml.java‎

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package io.github.youngpeanut.designpatterns.TemplateMethod.demo1; /**
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* A concrete class extends AbstractRead
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* This class can read HTML from a HTTP URL
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*/
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import java.io.*;
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import java.net.*;
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public class ReadHtml extends AbstractRead {
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private URLConnection conn;
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private BufferedReader in;
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public ReadHtml() {
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}
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public ReadHtml(String s) {
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resource = s;
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}
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public boolean open() {
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try {
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URL url = new URL(resource);
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conn = url.openConnection();
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in = new BufferedReader (
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new InputStreamReader(conn.getInputStream()));
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} catch (MalformedURLException e) {
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System.out.println("Uable to connect URL:" + resource);
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return false;
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} catch (IOException e) {
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System.out.println("IOExeption when connecting to URL" + resource);
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return false;
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}
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return true;
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}
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protected void readContent() {
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try {
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if(in != null) {
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String str;
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while((str = in.readLine()) != null) {
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System.out.println(str);
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}
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}
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} catch(IOException e) {
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System.out.println("Read file error !");
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}
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}
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protected void close() {
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if(in != null) {
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try {
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in.close();
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} catch(IOException e) {
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System.out.println("IO error !");
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}
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}
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}
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}

‎app/src/main/java/io/github/youngpeanut/designpatterns/TemplateMethod/demo1/Test.java‎

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package io.github.youngpeanut.designpatterns.TemplateMethod.demo1;
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/**
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* A test client
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*/
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public class Test {
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public static void main(String[] args) {
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// You should change the path of "README.md" in your local machine
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String fileName = "..\\README.md";
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String url = "http://www.github.com";
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AbstractRead fileRead = new ReadFile();
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AbstractRead htmlRead = new ReadHtml();
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fileRead.setResource(fileName);
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htmlRead.setResource(url);
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System.out.println("----- Read from a file -----");
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fileRead.getContent();
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System.out.println("----- Read from a url -----");
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htmlRead.getContent();
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}
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}

‎app/src/main/java/io/github/youngpeanut/designpatterns/java/nio/Selector.java‎

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package io.github.youngpeanut.designpatterns.java.nio;
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/**
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* Created by chenshao on 16/11/8.
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*/
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public class Selector {
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}

‎app/src/main/java/io/github/youngpeanut/designpatterns/proxy/ActivityDelegate/AppCompatActivity.java‎

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package io.github.youngpeanut.designpatterns.proxy.ActivityDelegate;
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import android.os.Bundle;
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import android.support.annotation.NonNull;
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import android.support.annotation.Nullable;
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/**
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* Created by chenshao on 16/11/10.
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*/
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public class AppCompatActivity {
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private AppCompatDelegat mDelegate;
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// @Override
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protected void onCreate(@Nullable Bundle savedInstanceState) {
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final AppCompatDelegat delegate = getDelegate();
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delegate.onCreate(savedInstanceState);
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}
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/**
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* @return The {@link AppCompatDelegat} being used by this Activity.
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*/
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@NonNull
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public AppCompatDelegat getDelegate() {
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if (mDelegate == null) {
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// mDelegate = AppCompatDelegat.create(this, this);
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}
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return mDelegate;
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}
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}

‎app/src/main/java/io/github/youngpeanut/designpatterns/proxy/ActivityDelegate/AppCompatDelegat.java‎

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package io.github.youngpeanut.designpatterns.proxy.ActivityDelegate;
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import android.content.Context;
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import android.os.Build;
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import android.os.Bundle;
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import android.support.v7.app.AppCompatCallback;
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import android.view.View;
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import android.view.ViewGroup;
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import android.view.Window;
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/**
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* 示例代码，详见android.support.v7.app.AppCompatDelegate
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* Created by chenshao on 16/11/10.
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*/
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public abstract class AppCompatDelegat {
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/**
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* Private constructor
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*/
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AppCompatDelegat() {}
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public abstract void onCreate(Bundle savedInstanceState);
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public abstract void onDestroy();
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public abstract void setContentView(View v, ViewGroup.LayoutParams lp);
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public abstract void addContentView(View v, ViewGroup.LayoutParams lp);
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private static AppCompatDelegat create(Context context, Window window,
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AppCompatCallback callback) {
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final int sdk = Build.VERSION.SDK_INT;
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// if (BuildCompat.isAtLeastN()) {
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// return new AppCompatDelegateImplN(context, window, callback);
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// } else if (sdk >= 23) {
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// return new AppCompatDelegateImplV23(context, window, callback);
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// } else if (sdk >= 14) {
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// return new AppCompatDelegateImplV14(context, window, callback);
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// } else
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if (sdk >= 11) {
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return new AppCompatDelegatImplV11(context, window, callback);
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} else {
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return new AppCompatDelegatImplV9(context, window, callback);
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}
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}
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}

‎app/src/main/java/io/github/youngpeanut/designpatterns/proxy/ActivityDelegate/AppCompatDelegatImplV11.java‎

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package io.github.youngpeanut.designpatterns.proxy.ActivityDelegate;
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import android.content.Context;
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import android.os.Bundle;
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import android.support.v7.app.AppCompatCallback;
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import android.util.Log;
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import android.view.View;
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import android.view.ViewGroup;
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import android.view.Window;
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/**
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* Created by chenshao on 16/11/10.
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*/
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public class AppCompatDelegatImplV11 extends AppCompatDelegat {
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public static final String TAG = "AppCompatDelegatImplV9";
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public AppCompatDelegatImplV11(Context context, Window window, AppCompatCallback callback) {
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}
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@Override
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public void onCreate(Bundle savedInstanceState) {
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Log.d(TAG,"onCreate impl by AppCompatDelegatImplV9");
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}
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@Override
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public void onDestroy() {
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Log.d(TAG,"onDestroy impl by AppCompatDelegatImplV9");
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}
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@Override
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public void setContentView(View v, ViewGroup.LayoutParams lp) {
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Log.d(TAG,"setContentView impl by AppCompatDelegatImplV9");
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}
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@Override
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public void addContentView(View v, ViewGroup.LayoutParams lp) {
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Log.d(TAG,"addContentView impl by AppCompatDelegatImplV9");
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}
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}

‎app/src/main/java/io/github/youngpeanut/designpatterns/proxy/ActivityDelegate/AppCompatDelegatImplV9.java‎

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package io.github.youngpeanut.designpatterns.proxy.ActivityDelegate;
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import android.content.Context;
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import android.os.Bundle;
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import android.support.v7.app.AppCompatCallback;
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import android.util.Log;
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import android.view.View;
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import android.view.ViewGroup;
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import android.view.Window;
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/**
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* Created by chenshao on 16/11/10.
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*/
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public class AppCompatDelegatImplV9 extends AppCompatDelegat {
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public static final String TAG = "AppCompatDelegatImplV9";
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public AppCompatDelegatImplV9(Context context, Window window, AppCompatCallback callback) {
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}
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@Override
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public void onCreate(Bundle savedInstanceState) {
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Log.d(TAG,"onCreate impl by AppCompatDelegatImplV9");
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}
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@Override
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public void onDestroy() {
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Log.d(TAG,"onDestroy impl by AppCompatDelegatImplV9");
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}
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@Override
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public void setContentView(View v, ViewGroup.LayoutParams lp) {
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Log.d(TAG,"setContentView impl by AppCompatDelegatImplV9");
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}
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@Override
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public void addContentView(View v, ViewGroup.LayoutParams lp) {
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Log.d(TAG,"addContentView impl by AppCompatDelegatImplV9");
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}
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}

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