自定义控件 Glide

最新推荐文章于 2020-12-02 14:05:05 发布

zj462136

最新推荐文章于 2020-12-02 14:05:05 发布

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本文链接：https://blog.youkuaiyun.com/zj462136/article/details/78946982

版权

MainActivity

package com.bwie.zhouyimomi.activity;

import android.content.Intent;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.widget.Toast;

import com.bwie.zhouyimomi.R;
import com.bwie.zhouyimomi.bean.DataDataBean;
import com.bwie.zhouyimomi.util.OkHttp3Util;
import com.bwie.zhouyimomi.view.MyBanner;
import com.google.gson.Gson;

import java.io.IOException;
import java.util.ArrayList;
import java.util.List;

import okhttp3.Call;
import okhttp3.Callback;
import okhttp3.Response;

public class MainActivity extends AppCompatActivity {

    private MyBanner myBanner;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        myBanner = findViewById(R.id.banner);
        getDataFromNet();
    }

    private void getDataFromNet() {
        OkHttp3Util.doGet("http://120.27.23.105/ad/getAd", new Callback() {
            @Override
            public void onFailure(Call call, IOException e) {

            }

            @Override
            public void onResponse(Call call, Response response) throws IOException {
                if (response.isSuccessful()){
                    String string = response.body().string();
                    final DataDataBean detalBean = new Gson().fromJson(string,DataDataBean.class);
                    final List<String> list = new ArrayList<>();
                    final List<DataDataBean.DataBean> data = detalBean.getData();
                    //在这里取图片时，可以循环，也可以用遍历，根据具体情况定
                    //第一种
                    //String[] images = detalBean.getData().getImages().split("\\|");
                    //                    for (int i = 0;i<images.length;i++){
                    //                       list.add(images[i]);
                    //                  }
                    //第二种
                    for (DataDataBean.DataBean dataBean:data){
                        String icon = dataBean.getIcon();
                        list.add(icon);
                    }

                    //耗时操作在子线程
                    runOnUiThread(new Runnable() {
                        @Override
                        public void run() {
                            //设置时间
                            myBanner.setTimeSecond(5);

                            //设置显示轮播
                            myBanner.setImageUrls(list);

                            //设置点击事件
                            myBanner.setClickListner(new MyBanner.OnClickLisner() {
                                @Override
                                public void onItemClick(int position) {
                                    if (detalBean.getData().get(position).getType() == 0){
                                        Toast.makeText(MainActivity.this,"点击了"+detalBean.getData().get(position).getAid(),Toast.LENGTH_SHORT).show();
                                        Intent intent = new Intent(MainActivity.this,WebActivity.class);
                                        intent.putExtra("url",data.get(position).getUrl());
                                        startActivity(intent);
                                    }else {
                                        Toast.makeText(MainActivity.this,"我要跳转到商品详情页",Toast.LENGTH_SHORT).show();
                                    }
                                }
                            });

                        }
                    });
                }
            }
        });
    }
}

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WebActivity

package com.bwie.zhouyimomi.activity;

import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.webkit.WebSettings;
import android.webkit.WebView;
import android.webkit.WebViewClient;

import com.bwie.zhouyimomi.R;

public class WebActivity extends AppCompatActivity {

    private WebView webView;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_web);
        webView = (WebView) findViewById(R.id.web);
        String url = getIntent().getStringExtra("url");
        webView.loadUrl(url);
        webView.setWebViewClient(new WebViewClient());
        WebSettings settings = webView.getSettings();
        settings.setJavaScriptCanOpenWindowsAutomatically(true);
        settings.setJavaScriptEnabled(true);
    }
}

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OkHttp3Util 

package com.bwie.zhouyimomi.util;import android.app.Activity;import android.content.Intent;import android.net.Uri;import android.os.Environment;import android.util.Log;import android.widget.Toast;import java.io.File;import java.io.FileOutputStream;import java.io.IOException;import java.io.InputStream;import java.util.HashMap;import java.util.Map;import java.util.concurrent.TimeUnit;import okhttp3.Cache;import okhttp3.Call;import okhttp3.Callback;import okhttp3.FormBody;import okhttp3.Interceptor;import okhttp3.MediaType;import okhttp3.MultipartBody;import okhttp3.OkHttpClient;import okhttp3.Request;import okhttp3.RequestBody;import okhttp3.Response;/** * Created by Dash on 2017/12/8. */public class OkHttp3Util {    /**     * 懒汉 安全 加同步     * 私有的静态成员变量 只声明不创建     * 私有的构造方法     * 提供返回实例的静态方法     */    private static OkHttpClient okHttpClient = null;    private OkHttp3Util() {    }    public static OkHttpClient getInstance() {        if (okHttpClient == null) {            //加同步安全            synchronized (OkHttp3Util.class) {                if (okHttpClient == null) {                    //okhttp可以缓存数据....指定缓存路径                    File sdcache = new File(Environment.getExternalStorageDirectory(), "cache");                    //指定缓存大小                    int cacheSize = 10 * 1024 * 1024;                    okHttpClient = new OkHttpClient.Builder()//构建器                            .connectTimeout(15, TimeUnit.SECONDS)//连接超时                            .writeTimeout(20, TimeUnit.SECONDS)//写入超时                            .readTimeout(20, TimeUnit.SECONDS)//读取超时                            //.addInterceptor(new CommonParamsInterceptor())//添加的是应用拦截器...公共参数                            //.addNetworkInterceptor(new CacheInterceptor())//添加的网络拦截器                            .cache(new Cache(sdcache.getAbsoluteFile(), cacheSize))//设置缓存                            .build();                }            }        }        return okHttpClient;    }    /**     * get请求     * 参数1 url     * 参数2 回调Callback     */    public static void doGet(String oldUrl, Callback callback) {        //要添加的公共参数...map        Map<String,String> map = new HashMap<>();        map.put("source","android");        StringBuilder stringBuilder = new StringBuilder();//创建一个stringBuilder        stringBuilder.append(oldUrl);        if (oldUrl.contains("?")){            //?在最后面....2类型            if (oldUrl.indexOf("?") == oldUrl.length()-1){            }else {                //3类型...拼接上&                stringBuilder.append("&");            }        }else {            //不包含? 属于1类型,,,先拼接上?号            stringBuilder.append("?");        }        //添加公共参数....        for (Map.Entry<String,String> entry: map.entrySet()) {            //拼接            stringBuilder.append(entry.getKey())                    .append("=")                    .append(entry.getValue())                    .append("&");        }        //删掉最后一个&符号        if (stringBuilder.indexOf("&") != -1){            stringBuilder.deleteCharAt(stringBuilder.lastIndexOf("&"));        }        String newUrl = stringBuilder.toString();//新的路径        //创建OkHttpClient请求对象        OkHttpClient okHttpClient = getInstance();        //创建Request        Request request = new Request.Builder().url(newUrl).build();        //得到Call对象        Call call = okHttpClient.newCall(request);        //执行异步请求        call.enqueue(callback);    }    /**     * post请求     * 参数1 url     * 参数2 Map<String, String> params post请求的时候给服务器传的数据     *      add..("","")     *      add()     */    public static void doPost(String url, Map<String, String> params, Callback callback) {        //要添加的公共参数...map        Map<String,String> map = new HashMap<>();        map.put("source","android");        //创建OkHttpClient请求对象        OkHttpClient okHttpClient = getInstance();        //3.x版本post请求换成FormBody 封装键值对参数        FormBody.Builder builder = new FormBody.Builder();        //遍历集合        for (String key : params.keySet()) {            builder.add(key, params.get(key));        }        //添加公共参数        for (Map.Entry<String,String> entry: map.entrySet()) {            builder.add(entry.getKey(),entry.getValue());        }        //创建Request        Request request = new Request.Builder().url(url).post(builder.build()).build();        Call call = okHttpClient.newCall(request);        call.enqueue(callback);    }    /**     * post请求上传文件....包括图片....流的形式传任意文件...     * 参数1 url     * file表示上传的文件     * fileName....文件的名字,,例如aaa.jpg     * params ....传递除了file文件 其他的参数放到map集合     *     */    public static void uploadFile(String url, File file, String fileName,Map<String,String> params) {        //创建OkHttpClient请求对象        OkHttpClient okHttpClient = getInstance();        MultipartBody.Builder builder = new MultipartBody.Builder();        builder.setType(MultipartBody.FORM);        //参数        if (params != null){            for (String key : params.keySet()){                builder.addFormDataPart(key,params.get(key));            }        }        //文件...参数name指的是请求路径中所接受的参数...如果路径接收参数键值是fileeeee,此处应该改变        builder.addFormDataPart("file",fileName,RequestBody.create(MediaType.parse("application/octet-stream"),file));        //构建        MultipartBody multipartBody = builder.build();        //创建Request        Request request = new Request.Builder().url(url).post(multipartBody).build();        //得到Call        Call call = okHttpClient.newCall(request);        //执行请求        call.enqueue(new Callback() {            @Override            public void onFailure(Call call, IOException e) {                Log.e("upload",e.getLocalizedMessage());            }            @Override            public void onResponse(Call call, Response response) throws IOException {                //上传成功回调 目前不需要处理                if (response.isSuccessful()){                    String s = response.body().string();                    Log.e("upload","上传--"+s);                }            }        });    }    /**     * Post请求发送JSON数据....{"name":"zhangsan","pwd":"123456"}     * 参数一：请求Url     * 参数二：请求的JSON     * 参数三：请求回调     */    public static void doPostJson(String url, String jsonParams, Callback callback) {        RequestBody requestBody = RequestBody.create(MediaType.parse("application/json; charset=utf-8"), jsonParams);        Request request = new Request.Builder().url(url).post(requestBody).build();        Call call = getInstance().newCall(request);        call.enqueue(callback);    }    /**     * 下载文件 以流的形式把apk写入的指定文件 得到file后进行安装     * 参数er：请求Url     * 参数san：保存文件的文件夹....download     */    public static void download(final Activity context, final String url, final String saveDir) {        Request request = new Request.Builder().url(url).build();        Call call = getInstance().newCall(request);        call.enqueue(new Callback() {            @Override            public void onFailure(Call call, IOException e) {                //com.orhanobut.logger.Logger.e(e.getLocalizedMessage());            }            @Override            public void onResponse(Call call, final Response response) throws IOException {                InputStream is = null;                byte[] buf = new byte[2048];                int len = 0;                FileOutputStream fos = null;                try {                    is = response.body().byteStream();//以字节流的形式拿回响应实体内容                    //apk保存路径                    final String fileDir = isExistDir(saveDir);                    //文件                    File file = new File(fileDir, getNameFromUrl(url));                    fos = new FileOutputStream(file);                    while ((len = is.read(buf)) != -1) {                        fos.write(buf, 0, len);                    }                    fos.flush();                    context.runOnUiThread(new Runnable() {                        @Override                        public void run() {                            Toast.makeText(context, "下载成功:" + fileDir + "," + getNameFromUrl(url), Toast.LENGTH_SHORT).show();                        }                    });                    //apk下载完成后 调用系统的安装方法                    Intent intent = new Intent(Intent.ACTION_VIEW);                    intent.setDataAndType(Uri.fromFile(file), "application/vnd.android.package-archive");                    context.startActivity(intent);                } catch (IOException e) {                    e.printStackTrace();                } finally {                    if (is != null) is.close();                    if (fos != null) fos.close();                }            }        });    }    /**     * 判断下载目录是否存在......并返回绝对路径     *     * @param saveDir     * @return     * @throws IOException     */    public static String isExistDir(String saveDir) throws IOException {        // 下载位置        if (Environment.getExternalStorageState().equals(Environment.MEDIA_MOUNTED)) {            File downloadFile = new File(Environment.getExternalStorageDirectory(), saveDir);            if (!downloadFile.mkdirs()) {                downloadFile.createNewFile();            }            String savePath = downloadFile.getAbsolutePath();            Log.e("savePath", savePath);            return savePath;        }        return null;    }    /**     * @param url     * @return 从下载连接中解析出文件名     */    private static String getNameFromUrl(String url) {        return url.substring(url.lastIndexOf("/") + 1);    }    /**     * 公共参数拦截器     */    private static class CommonParamsInterceptor implements Interceptor{        //拦截的方法        @Override        public Response intercept(Chain chain) throws IOException {            //获取到请求            Request request = chain.request();            //获取请求的方式            String method = request.method();            //获取请求的路径            String oldUrl = request.url().toString();            Log.e("---拦截器",request.url()+"---"+request.method()+"--"+request.header("User-agent"));            //要添加的公共参数...map            Map<String,String> map = new HashMap<>();            map.put("source","android");            if ("GET".equals(method)){                // 1.http://www.baoidu.com/login                --------？ key=value&key=value                // 2.http://www.baoidu.com/login?               --------- key=value&key=value                // 3.http://www.baoidu.com/login?mobile=11111    -----&key=value&key=value                StringBuilder stringBuilder = new StringBuilder();//创建一个stringBuilder                stringBuilder.append(oldUrl);                if (oldUrl.contains("?")){                    //?在最后面....2类型                    if (oldUrl.indexOf("?") == oldUrl.length()-1){                    }else {                        //3类型...拼接上&                        stringBuilder.append("&");                    }                }else {                    //不包含? 属于1类型,,,先拼接上?号                    stringBuilder.append("?");                }               //添加公共参数....                for (Map.Entry<String,String> entry: map.entrySet()) {                    //拼接                    stringBuilder.append(entry.getKey())                            .append("=")                            .append(entry.getValue())                            .append("&");                }                //删掉最后一个&符号                if (stringBuilder.indexOf("&") != -1){                    stringBuilder.deleteCharAt(stringBuilder.lastIndexOf("&"));                }                String newUrl = stringBuilder.toString();//新的路径                //拿着新的路径重新构建请求                request = request.newBuilder()                        .url(newUrl)                        .build();            }else if ("POST".equals(method)){                //先获取到老的请求的实体内容                RequestBody oldRequestBody = request.body();//....之前的请求参数,,,需要放到新的请求实体内容中去                //如果请求调用的是上面doPost方法                if (oldRequestBody instanceof FormBody){                    FormBody oldBody = (FormBody) oldRequestBody;                    //构建一个新的请求实体内容                    FormBody.Builder builder = new FormBody.Builder();                    //1.添加老的参数                    for (int i=0;i<oldBody.size();i++){                        builder.add(oldBody.name(i),oldBody.value(i));                    }                    //2.添加公共参数                    for (Map.Entry<String,String> entry:map.entrySet()) {                        builder.add(entry.getKey(),entry.getValue());                    }                    FormBody newBody = builder.build();//新的请求实体内容                    //构建一个新的请求                    request = request.newBuilder()                            .url(oldUrl)                            .post(newBody)                            .build();                }            }            Response response = chain.proceed(request);            return response;        }    }    /**     * 网络缓存的拦截器......注意在这里更改cache-control头是很危险的,一般客户端不进行更改,,,,服务器端直接指定     *     * 没网络取缓存的时候,一般都是在数据库或者sharedPerfernce中取出来的     *     *     *     */    /*private static class CacheInterceptor implements Interceptor{        @Override        public Response intercept(Chain chain) throws IOException {            //老的响应            Response oldResponse = chain.proceed(chain.request());            *//*if (NetUtils.isNetworkConnected(DashApplication.getAppContext())){                int maxAge = 120; // 在线缓存在2分钟内可读取                return oldResponse.newBuilder()                        .removeHeader("Pragma")                        .removeHeader("Cache-Control")                        .header("Cache-Control", "public, max-age=" + maxAge)                        .build();            }else {                int maxStale = 60 * 60 * 24 * 14; // 离线时缓存保存2周                return oldResponse.newBuilder()                        .removeHeader("Pragma")                        .removeHeader("Cache-Control")                        .header("Cache-Control", "public, only-if-cached, max-stale=" + maxStale)                        .build();            }*//*        }    }*/}

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MyBanner

package com.bwie.zhouyimomi.view;

import android.content.Context;
import android.os.Handler;
import android.os.Message;
import android.support.annotation.Nullable;
import android.support.v4.view.PagerAdapter;
import android.support.v4.view.ViewPager;
import android.util.AttributeSet;
import android.view.MotionEvent;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ImageView;
import android.widget.LinearLayout;

import com.bumptech.glide.Glide;
import com.bwie.zhouyimomi.R;

import java.util.ArrayList;
import java.util.List;

/**
 * Created by lenovo on 2018/1/1.
 */

public class MyBanner extends LinearLayout {

    private LinearLayout linearLayout;
    private ViewPager viewPager;
    private int time = 2;
    private List<String> list;
    private List<ImageView> listDoc;

    Handler handler = new Handler(){
        @Override
        public void handleMessage(Message msg) {
            if (msg.what == 0){

                int currentItem = viewPager.getCurrentItem();

                viewPager.setCurrentItem(currentItem +1);

                //再次发送
                sendEmptyMessageDelayed(0,time*1000);

            }
        }
    };
    private OnClickLisner onClickLisner;

    public MyBanner(Context context) {
        super(context);
        init();
    }

    public MyBanner(Context context, @Nullable AttributeSet attrs) {
        super(context, attrs);
        init();
    }

    public MyBanner(Context context, @Nullable AttributeSet attrs, int defStyleAttr) {
        super(context, attrs, defStyleAttr);
        init();
    }
    //初始化数据
    private void init() {
        View view = View.inflate(getContext(), R.layout.bannner_layout,this);

        //找到控件
        viewPager = view.findViewById(R.id.viewPager);
        linearLayout = view.findViewById(R.id.linearLayout);
    }

    /**
     * 对外提供设置image路径的方法
     */
    public void setImageUrls(List<String> list){
        this.list = list;

        if (list == null){
            return;
        }

        //设置适配器
        LunBoAdapter lunBoAdapter = new LunBoAdapter(getContext(), list);
        viewPager.setAdapter(lunBoAdapter);

        initDoc();

        //显示中间某个位置
        viewPager.setCurrentItem(list.size()*10000);

        //使用handler自动轮播
        handler.sendEmptyMessageDelayed(0,time*1000);

        //状态改变的监听事件
        viewPager.addOnPageChangeListener(new ViewPager.OnPageChangeListener() {
            @Override
            public void onPageScrolled(int position, float positionOffset, int positionOffsetPixels) {

            }

            @Override
            public void onPageSelected(int position) {
                //在选中某一页的时候,切换小圆点的背景
                for (int i = 0;i<listDoc.size();i++){
                    if (position%listDoc.size() == i){
                        listDoc.get(i).setBackgroundResource(R.drawable.shape_01);
                    }else {
                        listDoc.get(i).setBackgroundResource(R.drawable.shape_02);
                    }
                }


            }

            @Override
            public void onPageScrollStateChanged(int state) {

            }
        });


    }

    /**
     * 初始化小圆点
     */
    private void initDoc() {

        //创建一个集合,记录这些小圆点
        listDoc = new ArrayList<>();
        //清空布局
        linearLayout.removeAllViews();

        for (int i=0;i<list.size();i++){

            ImageView docImage = new ImageView(getContext());
            if (i == 0){
                docImage.setBackgroundResource(R.drawable.shape_01);
            }else {
                docImage.setBackgroundResource(R.drawable.shape_02);
            }

            //添加到集合
            listDoc.add(docImage);

            //添加到线性布局
            LinearLayout.LayoutParams params = new LinearLayout.LayoutParams(LinearLayout.LayoutParams.WRAP_CONTENT,LinearLayout.LayoutParams.WRAP_CONTENT);

            params.setMargins(5,0,5,0);

            linearLayout.addView(docImage,params);


        }


    }

    /**
     * 对外提供轮播的时间
     */
    public void setTimeSecond(int time){
        this.time = time;
    }

    /**
     * 点击事件
     * @param onClickLisner
     */
    public void setClickListner(OnClickLisner onClickLisner) {

        this.onClickLisner = onClickLisner;
    }

    private class LunBoAdapter extends PagerAdapter {

        private List<String> list;
        private Context context;

        public LunBoAdapter(Context context, List<String> list) {
            this.context = context;
            this.list = list;
        }

        @Override
        public int getCount() {
            return Integer.MAX_VALUE;
        }

        @Override
        public boolean isViewFromObject(View view, Object object) {
            return view == object;
        }

        @Override
        public Object instantiateItem(ViewGroup container, final int position) {

            //创建imageView
            ImageView imageView = new ImageView(context);
            imageView.setScaleType(ImageView.ScaleType.FIT_XY);
            //加载这张图片
            Glide.with(context).load(list.get(position%list.size())).into(imageView);


            //点击事件
            imageView.setOnClickListener(new OnClickListener() {
                @Override
                public void onClick(View view) {
                    //触发
                    onClickLisner.onItemClick(position%list.size());
                }
            });

            //触摸事件
            imageView.setOnTouchListener(new OnTouchListener() {
                @Override
                public boolean onTouch(View view, MotionEvent motionEvent) {

                    switch (motionEvent.getAction()){
                        case MotionEvent.ACTION_DOWN:
                            //取消handler身上的消息和回调
                            handler.removeCallbacksAndMessages(null);

                            break;
                        case MotionEvent.ACTION_MOVE:
                            handler.removeCallbacksAndMessages(null);
                            break;
                        case MotionEvent.ACTION_CANCEL:
                            handler.sendEmptyMessageDelayed(0,time*1000);
                            break;
                        case MotionEvent.ACTION_UP:
                            handler.sendEmptyMessageDelayed(0,time*1000);
                            break;
                    }

                    return false;
                }
            });

            //添加到容器
            container.addView(imageView);

            //返回

            return imageView;
        }

        @Override
        public void destroyItem(ViewGroup container, int position, Object object) {

            container.removeView((View) object);
        }
    }

    public interface OnClickLisner{
        void onItemClick(int position);
    }

}