热修复demo，基于AndFix

package com.meizu.myapplication; import android.os.Environment; import android.support.v7.app.AppCompatActivity; import android.os.Bundle; import android.util.Log; import android.view.View; import android.widget.Button; import android.widget.Toast; import java.io.File; import java.io.FileOutputStream; import java.io.IOException; import java.io.InputStream; import java.io.OutputStream; import java.net.URL; import java.net.URLConnection; public class TwoActivity extends AppCompatActivity { Button btnAdd; String path; MyApplication myApplication; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_two); btnAdd = (Button) findViewById(R.id.btn_add); path = getCacheDir().getPath(); // path = getBaseContext().getExternalFilesDir().getPath(); // path = Environment.getExternalStorageDirectory().getPath(); // path = Environment.getDownloadCacheDirectory().getPath(); // path = Environment.getRootDirectory().getPath(); path = Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_PICTURES).getAbsolutePath() + "/fixdemo/"; File file = new File(path); if (!file.exists()) { file.mkdir(); } Log.e("zkq","缓存地址=="+path); btnAdd.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { Toast.makeText(TwoActivity.this,"新版本，热修复成功",Toast.LENGTH_LONG).show(); myApplication = (MyApplication) getApplication(); try { myApplication.patchManager.addPatch(Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_PICTURES).getAbsolutePath() + "/fixdemo/a.apatch"); } catch (IOException e) { e.printStackTrace(); } } }); new Thread(new Runnable() { @Override public void run() { download("http://openfile.meizu.com/group1/M00/00/DB/CnQOjVhjY76AS3Y-AAG_jmvziEY278.png680x680.jpg","pic1"); } }).start(); } /** * 下载文件到本地 * * @param urlString * 被下载的文件地址 * @param filename * 本地文件名 * @throws Exception * 各种异常 */ public void download(String urlString,String filename){ String str = Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_PICTURES).getAbsolutePath() + "/fixdemo/"; int size =0; long perStartTime = System.currentTimeMillis(); try{ if (!new File(str).exists()) { new File(str).mkdir(); } // 构造URL URL url = new URL(urlString); // 打开连接 URLConnection con = url.openConnection(); con.setConnectTimeout(5000); // 输入流 InputStream is = con.getInputStream(); size = con.getContentLength(); // 1K的数据缓冲 byte[] bs = new byte[1024]; // 读取到的数据长度 int len; // 输出的文件流 str = str + filename; OutputStream os = new FileOutputStream(str); // 开始读取 while ((len = is.read(bs)) != -1) { os.write(bs, 0, len); } // 完毕，关闭所有链接 os.close(); is.close(); }catch (Exception e){ e.printStackTrace(); Log.e("zkq","连接超时，图片链接为=="+urlString); } Log.e("zkq","下载完成"); } }