android TextView加载html内容并加载图片

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 {

	@Override
	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://avatar.csdn.net/0/3/8/2_zhang957411207.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:

android TextView加载html内容并加载图片_第1张图片



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