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android TextView加载html内容并加载图片
来源:互联网   发布日期:2015-11-25 22:15:41   浏览:4852次  

导读:[html] 瀀愀挀欀愀最攀 com.example.textviewfromhtml; 椀洀瀀漀爀琀 java.net.URL; 椀洀瀀漀爀琀 android.app...

[html]

package com.example.textviewfromhtml;

import java.net.URL;

import android.app.Activity;

import android.graphics.drawable.Drawable;

import android.os.Bundle;

import android.os.StrictMode;

import android.text.Html;

import android.text.Html.ImageGetter;

import android.text.method.LinkMovementMethod;

import android.text.method.ScrollingMovementMethod;

import android.util.Log;

import android.view.Menu;

import android.widget.TextView;

public class MainActivity extends Activity {

@Overridewww.2cto.com

protected void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

struct();

setContentView(R.layout.activity_main);

TextView tv = (TextView) findViewById(R.id.txt);

String html = "<html><head><title>TextView使用HTML</title></head><body><p><strong>强调</strong></p><p><em>斜体</em></p>"

+ "<p><a href=\"http://www.dreamdu.com/xhtml/\">超链接HTML入门</a>学习HTML!</p><p><font color=\"#aabb00\">颜色1"

+ "</p><p><font color=\"#00bbaa\">颜色2</p><p><font color=\"#aabb00\">颜色1"

+ "</p><p><font color=\"#00bbaa\">颜色2</p><p><font color=\"#aabb00\">颜色1"

+ "</p><p><font color=\"#00bbaa\">颜色2</p><p><font color=\"#aabb00\">颜色1"

+ "</p><p><font color=\"#00bbaa\">颜色2</p><p><font color=\"#aabb00\">颜色1"

+ "</p><p><font color=\"#00bbaa\">颜色2</p><h1>标题1</h1><h3>标题2</h3><h6>标题3</h6><p>大于>小于<</p><p>"

+ "下面是网络图片</p><img src=http://up.2cto.com/2013/0128/20130128020940641.jpg\"/></body></html>";

tv.setMovementMethod(ScrollingMovementMethod.getInstance());// 设置可滚动

tv.setMovementMethod(LinkMovementMethod.getInstance());//设置超链接可以打开网页

tv.setText(Html.fromHtml(html, imgGetter, null));

}

@Override

public boolean onCreateOptionsMenu(Menu menu) {

// Inflate the menu; this adds items to the action bar if it is present.

getMenuInflater().inflate(R.menu.activity_main, menu);

return true;

}

//这里面的resource就是fromhtml函数的第一个参数里面的含有的url

ImageGetter imgGetter = new Html.ImageGetter() {

public Drawable getDrawable(String source) {

Log.i("RG", "source---?>>>" + source);

Drawable drawable = null;

URL url;

try {

url = new URL(source);

Log.i("RG", "url---?>>>" + url);

drawable = Drawable.createFromStream(url.openStream(), ""); // 获取网路图片

} catch (Exception e) {

e.printStackTrace();

return null;

}

drawable.setBounds(0, 0, drawable.getIntrinsicWidth(),

drawable.getIntrinsicHeight());

Log.i("RG", "url---?>>>" + url);

return drawable;

}

};

public static void struct() {

StrictMode.setThreadPolicy(new StrictMode.ThreadPolicy.Builder()

.detectDiskReads().detectDiskWrites().detectNetwork() // or

// .detectAll()

// for

// all

// detectable

// problems

.penaltyLog().build());

StrictMode.setVmPolicy(new StrictMode.VmPolicy.Builder()

.detectLeakedSqlLiteObjects() // 探测SQLite数据库操作

.penaltyLog() // 打印logcat

.penaltyDeath().build());

}

}

记得添加权限:<uses-permission android:name="android.permission.INTERNET" />

效果如下:

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