Android网络图片查看器与网页源码查看器-创新互联

在AndroidManifest.xml里面先添加权限访问网络的权限：

效果图如下：

下面是主要代码：

package com.hb.neting;

import java.io.InputStream;
import java.net.HttpURLConnection;
import java.net.URL;

import android.annotation.SuppressLint;
import android.app.Activity;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.os.Bundle;
import android.text.TextUtils;
import android.view.View;
import android.widget.EditText;
import android.widget.ImageView;
import android.widget.Toast;

public class MainActivity extends Activity {
 private ImageView iv_show;
 private EditText et_input;
 private String path;
 private int code;
 private HttpURLConnection conn;
 @Override
 protected void onCreate(Bundle savedInstanceState) {
 super.onCreate(savedInstanceState);
 setContentView(R.layout.activity_main);
 iv_show=(ImageView) findViewById(R.id.iv_show);
 et_input=(EditText) findViewById(R.id.et_inpput);
 }
 @SuppressLint("ShowToast") public void chakan(View view){
 path = et_input.getText().toString().trim();
 if (TextUtils.isEmpty(path)) {
 Toast.makeText(MainActivity.this, "不能输入空的", 0).show();
 return;
 }
 new Thread(){
 public void run() {
 try {
  URL url = new URL(path);
  conn = (HttpURLConnection) url.openConnection();
  conn.setRequestMethod("GET");
  conn.setConnectTimeout(5000);
  code = conn.getResponseCode();
  if(code==200){
  InputStream in = conn.getInputStream();
  //解析图片
  final Bitmap stream = BitmapFactory.decodeStream(in);
  runOnUiThread(new Runnable() {
  public void run() {
  //更新UI
  iv_show.setImageBitmap(stream);
  }
  });
  in.close();
  }
 } catch (Exception e) {
  e.printStackTrace();
 }
 };
 }.start();
 }
}