html中如何给图片添加点击事件的详解
bind() 方法为被选元素添加一个或多个事件处理程序，并规定事件发生时运行的函数。
jQuery 事件 - bind() 方法 ——将事件和函数绑定到元素
规定向被选元素添加的一个或多个事件处理程序，以及当事件发生时运行的函数。
jQuery 事件 - bind() 方法——语法
1 $(selector).bind(event,data,function)
jQuery 事件 - bind() 方法——参数描述
event 必需。规定添加到元素的一个或多个事件。由空格分隔多个事件。必须是有效的事件。
data 可选。规定传递到函数的额外数据。
function 必需。规定当事件发生时运行的函数。
实例：
1 //直接给所有img标签绑定click事件
2 $(\"img\").click(function(){
3 alert('你点击了图片');
4 })
5
6 //使用bind方法绑定click事件
7 $(\"img\").bind(\"click\",function(){
8 alert('你点击了图片');
9 })
Html 的img标签添加点击事件
1 package com.topnews;
2
3 import java.util.ArrayList;
4
5 import android.annotation.SuppressLint;
6 import android.app.Activity;
7 import android.app.Fragment;
8 import android.content.Context;
9 import android.content.Intent;
10 import android.graphics.Bitmap;
11 import android.os.AsyncTask;
12 import android.os.Bundle;
13 import android.text.TextUtils;
14 import android.util.Log;
15 import android.view.View;
16 import android.view.ViewGroup.LayoutParams;
17 import android.webkit.WebChromeClient;
18 import android.webkit.WebSettings;
19 import android.webkit.WebView;
20 import android.webkit.WebViewClient;
21 import android.webkit.WebSettings.LayoutAlgorithm;
22 import android.widget.Button;
23 import android.widget.FrameLayout;
24 import android.widget.ProgressBar;
25 import android.widget.TextView;
26
27 import com.topnews.base.BaseActivity;
28 import com.topnews.bean.NewsEntity;
29 import com.topnews.service.NewsDetailsService;
30 import com.topnews.tool.BaseTools;
31 import com.topnews.tool.DataTools;
32 import com.topnews.tool.DateTools;
33
34 @SuppressLint(\"JavascriptInterface\")
35 public class DetailsActivity extends BaseActivity {
36 private TextView title;
37 private ProgressBar progressBar;
38 private FrameLayout customview_layout;
39 private String news_url;
40 private String news_title;
41 private String news_source;
42 private String news_date;
43 private NewsEntity news;
44 private TextView action_comment_count;
45 WebView webView;
46
47 @Override
48 protected void onCreate(Bundle savedInstanceState) {
49 // TODO Auto-generated method stub
50 super.onCreate(savedInstanceState);
51 setContentView(R.layout.details);
52 setNeedBackGesture(true);// 设置需要手势监听
53 getData();
54 initView();
55 initWebView();
56 }
57
58 / 获取传递过来的数据 /
59 private void getData() {
60 news = (NewsEntity) getIntent().getSerializableExtra(\"news\");
61 news_url = news.getSource_url();
62 news_title = news.getTitle();
63 news_source = news.getSource();
64 news_date = 65DateTools.getNewsDetailsDate(String.valueOf(news.getPublishTime()));
66 }
67
68 private void initWebView() {
69 webView = (WebView) findViewById(R.id.wb_details);
70 LayoutParams params = new 71LayoutParams(LayoutParams.MATCH_PARENT, LayoutParams.MATCH_PARENT);
72 if (!TextUtils.isEmpty(news_url)) {
73 WebSettings settings = webView.getSettings();
74 settings.setJavaScriptEnabled(true);// 设置可以运行JS脚本
75 // settings.setTextZoom(120);//Sets the text zoom of the page in
76 // percent. The default is 100.
77 settings.setLayoutAlgorithm(LayoutAlgorithm.SINGLE_COLUMN);
78 // settings.setUseWideViewPort(true); //打开页面时， 自适应屏幕
79 // settings.setLoadWithOverviewMode(true);//打开页面时， 自适应屏幕
80 settings.setSupportZoom(false);// 用于设置webview放大
81 settings.setBuiltInZoomControls(false);
82 webView.setBackgroundResource(R.color.transparent);
83 // 添加js交互接口类，并起别名 imagelistner
84 webView.addJavascriptInterface(new 85JavascriptInterface(getApplicationContext()), \"imagelistner\");
86 webView.setWebChromeClient(new MyWebChromeClient());
87 webView.setWebViewClient(new MyWebViewClient());
88 Log.i(\"info\", \"news_url:\" + news_url);
89 Log.i(\"info\", \"news_title:\" + news_title);
90 Log.i(\"info\", \"news_source:\" + news_source);
91 Log.i(\"info\", \"news_date:\" + news_date);
92 new MyAsnycTask().execute(news_url, news_title, news_source + \" \" + 93news_date);
94 }
95 }
96
97 private void initView() {
98 title = (TextView) findViewById(R.id.title);
99 progressBar = (ProgressBar) findViewById(R.id.ss_htmlprogessbar);
100 customview_layout = (FrameLayout) 101findViewById(R.id.customview_layout);
102 // 底部栏目
103 action_comment_count = (TextView) 104findViewById(R.id.action_comment_count);
105
106 progressBar.setVisibility(View.VISIBLE);
107 title.setTextSize(13);
108 title.setVisibility(View.VISIBLE);
109 title.setText(news_url);
110 action_comment_count.setText(String.valueOf(news.getCommentNum()));
111 }
112
113 @Override
114 public void onBackPressed() {
115 super.onBackPressed();
116 overridePendingTransition(R.anim.slide_in_left, R.anim.slide_out_right);
117 }
118
119 private class MyAsnycTask extends AsyncTask<string, string,=\"\" string=\"\"> {
120
121 @Override
122 protected String doInBackground(String... urls) {
123 String data = NewsDetailsService.getNewsDetails(urls[0], urls[1], urls[2]);
124 Log.i(\"info\", \"MyAsnycTask.data:\" + data);
125 return data;
126 }
127
128 @Override
129 protected void onPostExecute(String data) {
130 webView.loadDataWithBaseURL(null, data, \"text/html\", \"utf-8\", null);
131 }
132 }
133
134 // 注入js函数监听
135 private void addImageClickListner() {
136 // 这段js函数的功能就是，遍历所有的img几点，并添加onclick函数，在还是执137 行的时候调用本地接口传递url过去
138 webView.loadUrl(\"javascript:(function(){\" + \"var objs = 139document.getElementsByTagName(\\"img\\");\" + \"var imgurl=''; \"
140 + \"for(var i=0;i<objs.length;i++) \"=\"\" +=\"\" \"{\"=\"\" 141\"imgurl+=\"objs[i].src+',';\"\" objs[i].onclick=\"function()\" {=\"\" 142window.imagelistner.openimage(imgurl);=\"\" }=\"\" \"}\"=\"\" \"})()\");=\"\" js通信接口=\"\" 143public=\"\" class=\"\" javascriptinterface=\"\" private=\"\" context=\"\" context;=\"\" 144javascriptinterface(context=\"\" context)=\"\" this.context=\"context;\" void=\"\" 145openimage(string=\"\" img)=\"\" string[]=\"\" imgs=\"img.split(\",\");\" 146arraylist<string=\"\"> imgsUrl = new ArrayList<string>();
147 for (String s : imgs) {
148 imgsUrl.add(s);
149 Log.i(\"图片的URL>>>>>>>>>>>>>>>>>>>>>>>\", s);
150 }
151 Intent intent = new Intent();
152 intent.putStringArrayListExtra(\"infos\", imgsUrl);
153 intent.setClass(context, ImageShowActivity.class);
154 intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
155 context.startActivity(intent);
156 }
157 }
158
159 // 监听
160 private class MyWebViewClient extends WebViewClient {
161 @Override
162 public boolean shouldOverrideUrlLoading(WebView view, String url) {
163 return super.shouldOverrideUrlLoading(view, url);
164 }
165
166 @Override
167 public void onPageFinished(WebView view, String url) {
168 view.getSettings().setJavaScriptEnabled(true);
169 super.onPageFinished(view, url);
170 // html加载完成之后，添加监听图片的点击js函数
171 addImageClickListner();
172 progressBar.setVisibility(View.GONE);
173 webView.setVisibility(View.VISIBLE);
174 }
175
176 @Override
177 public void onPageStarted(WebView view, String url, Bitmap favicon) {
178 view.getSettings().setJavaScriptEnabled(true);
179 super.onPageStarted(view, url, favicon);
180 }
181
182 @Override
183 public void onReceivedError(WebView view, int errorCode, String description, 184String failingUrl)
185 {
progressBar.setVisibility(View.GONE);
super.onReceivedError(view, errorCode, description, failingUrl);
}
}
private class MyWebChromeClient extends WebChromeClient {
@Override
public void onProgressChanged(WebView view, int newProgress) {
// TODO Auto-generated method stub
if (newProgress != 100) {
progressBar.setProgress(newProgress);
}
super.onProgressChanged(view, newProgress);
}
}
}</string></objs.length;i++)></string,>
// NewsDetailsService.java
1 package com.topnews.service;
2
3 import java.io.IOException;
4 import org.jsoup.Jsoup;
5 import org.jsoup.nodes.Document;
6 import org.jsoup.nodes.Element;
7
8 import android.text.TextUtils;
9
10 public class NewsDetailsService {
11 public static String getNewsDetails(String url, String news_title,
12 String news_date) {
13 Document document = null;
14 String data = \"\" +
15 \"<center><h2 style=\"'font-size:16px;'\">\" + news_title + \"</h2></center>\";
16 data = data + \"<p align=\"'left'\" style=\"'margin-left:10px'\">\"
17 + \"<span style=\"'font-size:10px;'\">\"
18 + news_date
19 + \"</span>\"
20 + \"</p>\";
21 data = data + \"<hr size=\"'1'\">\";
22 try {
23 document = Jsoup.connect(url).timeout(9000).get();
24 Element element = null;
25 if (TextUtils.isEmpty(url)) {
26 data = \"\";
27 element = document.getElementById(\"memberArea\");
28 } else {
29 element = document.getElementById(\"artibody\");
30 }
31 if (element != null) {
32 data = data + element.toString();
33 }
34 data = data + \"\";
35 } catch (IOException e) {
36 e.printStackTrace();
37 }
38 return data;
39 }
40 }
以上就是html中如何给图片添加点击事件的详解的详细内容，
