android APK更新

1.擷取版本号      

2.對比版本号      

3.下載下傳apk檔案      

4.啟動安裝      

/**
 * 更新
 *
 * @param view
 */
public void onUpgrade(View view) {
    if (isUpgrade) {
        return;
    }
    isUpgrade = true;
    mUpdateAPKThread = new UpdateAPKThread(this, "url");
    new UpgradeThread().start();

}





       
class UpgradeThread extends Thread {
    @Override
    public void run() {
        super.run();
        boolean flag = mUpdateAPKThread.checkIsNeedUpdate();
        Message msg = Message.obtain();
        msg.what = KEY_UPGRADE;
        Bundle bundle = new Bundle();
        bundle.putBoolean("upgrade", flag);
        msg.setData(bundle);
        handler.sendMessage(msg);
    }
}      
    
case KEY_UPGRADE:
    if (msg.getData().getBoolean("upgrade")) {
        String message = mUpdateAPKThread.getDetail();
        new AlertDialog.Builder(LoginActivity.this)
                .setCancelable(false)
                .setTitle(getString(R.string.upgrade))
                .setMessage(message)
                .setPositiveButton(getString(R.string.confirm), new DialogInterface.OnClickListener() {
                    @Override
                    public void onClick(DialogInterface dialog, int which) {
                        mProgressDialog = new MyProgressDialog(LoginActivity.this, getString(R.string.load), false);
                        mUpdateAPKThread.startDownloadThread();
                        isUpgrade = false;
                    }
                })
                .setNegativeButton(getString(R.string.cancel), new DialogInterface.OnClickListener() {
                    @Override
                    public void onClick(DialogInterface dialog, int which) {
                        isUpgrade = false;
                    }
                }).create().show();
    } else {
        Yancy.warning(LoginActivity.this, getString(R.string.version)).show();
        isUpgrade = false;
    }
    break;      
                
/**
 * 檔案長度
 */
private int max = 0;

@Override
public void setMax(int length) {
    max = length;
}

@Override
public void setProgresss(int len) {
    mProgressDialog.setProgress(len * 100 / max);
}

@Override
public void onSuccess() {
    mUpdateAPKThread.installApk();
    mProgressDialog.dismiss();
}

@Override
public void onFail() {
    Yancy.error(this, getString(R.string.download_failed)).show();
    mProgressDialog.dismiss();
}      
   
    
package com.yancy.sdk.upgrade;

import android.content.Context;
import android.content.Intent;
import android.content.pm.PackageManager.NameNotFoundException;
import android.net.Uri;
import android.os.Environment;
import android.os.Handler;
import android.os.Looper;

import com.yancy.sdk.app.App;
import com.yancy.sdk.utils.AppUtils;

import org.json.JSONException;
import org.json.JSONObject;

import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.net.HttpURLConnection;
import java.net.MalformedURLException;
import java.net.URL;

/**
 * create by dpc on 2017-5-10
 */
public class UpdateAPKThread {

    private Context mContext;
    private String strURL;
    private File downloadFile;
    private DownloadListener downloadListener;
    private String detail;
    private String varUrl;
    private String apkName;
    private Handler mHandler = new Handler(Looper.getMainLooper()) {
        public void handleMessage(android.os.Message msg) {
            switch (msg.what) {
                case 0:
                    downloadListener.setMax((int) msg.obj);
                    break;
                case 1:
                    downloadListener.setProgresss((int) msg.obj);
                    break;
                case 2:
                    downloadListener.onSuccess();
                    break;
                case 3:
                    downloadListener.onFail();
                    break;
                default:
                    break;
            }
        }
    };

    public UpdateAPKThread(Context mContext, String strURL) {
        this.mContext = mContext;
        this.strURL = strURL;
        setDownloadListener((DownloadListener) mContext);
    }

    public void setDownloadListener(DownloadListener downloadListener) {
        this.downloadListener = downloadListener;
    }

    public interface DownloadListener {
        /**
         * 設定檔案長度
         *
         * @param length
         */
        void setMax(int length);

        /**
         * 進度
         *
         * @param len
         */
        void setProgresss(int len);

        /**
         * 成功
         */
        void onSuccess();

        /**
         * 失敗
         */
        void onFail();
    }

    /**
     * 是否需要更新
     *
     * @return
     */
    public boolean checkIsNeedUpdate() {
        if (strURL.equals("")) {
            return false;
        }
        String data = getJsonContent(strURL);
        if (data.equals("")) {
            return false;
        }
        return parseJson(mContext, data);
    }


    private boolean parseJson(Context context, String strResult) {
        try {
            JSONObject jsonObject = new JSONObject(strResult);
            String verName = jsonObject.getString("verName");
            String verCode = jsonObject.getString("verCode");
            varUrl = jsonObject.getString("varUrl");
            detail = jsonObject.getString("detail");
            apkName = jsonObject.getString("apkname");
            int code = Integer.parseInt(verCode);
            if (code > AppUtils.getVersionCode(context)) {
                return true;
            }
        } catch (JSONException e) {
            e.printStackTrace();
        } catch (NumberFormatException e) {
            e.printStackTrace();
        }
        return false;
    }

    private String getJsonContent(String urlStr) {
        try {
            URL url = new URL(urlStr);
            HttpURLConnection httpConn = (HttpURLConnection) url
                    .openConnection();
            // 設定連接配接屬性
            httpConn.setConnectTimeout(3000);
            httpConn.setDoInput(true);
            httpConn.setRequestMethod("GET");
            httpConn.connect();
            if (200 == httpConn.getResponseCode()) {
                return ConvertStream2Json(httpConn.getInputStream());
            }
        } catch (MalformedURLException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        }
        return "";
    }

    private String ConvertStream2Json(InputStream inputStream) {
        String jsonStr = "";
        ByteArrayOutputStream out = new ByteArrayOutputStream();
        byte[] buffer = new byte[1024];
        int len = 0;
        try {
            while ((len = inputStream.read(buffer, 0, buffer.length)) != -1) {
                out.write(buffer, 0, len);
            }
            jsonStr = new String(out.toByteArray());
        } catch (IOException e) {
            e.printStackTrace();
        }
        return jsonStr;
    }

    public String getDetail() {
        return detail;
    }

    Thread mThread;
    boolean isDownloading = false;

    public void startDownloadThread() {
        final String urlStr = varUrl;
        final String fileName = apkName;
        mThread = new Thread() {
            public void run() {
                isDownloading = true;
                try {
                    URL url = new URL(urlStr);
                    HttpURLConnection conn = (HttpURLConnection) url
                            .openConnection();
                    // 獲得檔案的長度
                    int contentLength = conn.getContentLength();
                    mHandler.obtainMessage(0, contentLength).sendToTarget();
                    File filePath = new File(Environment.getExternalStorageDirectory() + "/apk/");
                    if (!filePath.exists()) {
                        filePath.mkdirs();
                        filePath = new File(Environment.getExternalStorageDirectory() + "/apk/" + "/.test.txt");
                        if (!filePath.exists())
                            try {
                                filePath.createNewFile();
                            } catch (IOException e) {
                                e.printStackTrace();
                            }
                        FileNotification.updateNotify(filePath);
                    }

                    String pathName = Environment.getExternalStorageDirectory() + "/apk/" + fileName;
                    downloadFile = new File(pathName);
                    InputStream input = conn.getInputStream();

                    if (downloadFile.exists()) {
                        downloadFile.delete();
                    }
                    downloadFile.createNewFile();
                    FileOutputStream output = new FileOutputStream(downloadFile);
                    byte[] buffer = new byte[1024];
                    int len; // 重要參數
                    int sum = 0;
                    while ((len = input.read(buffer)) != -1 && isDownloading) {
                        sum += len;
                        mHandler.obtainMessage(1, sum).sendToTarget();
                        output.write(buffer, 0, len);
                        Thread.sleep(1);
                    }
                    output.close();
                    input.close();
                    mHandler.obtainMessage(2).sendToTarget();
                } catch (IOException e1) {
                    mHandler.obtainMessage(3).sendToTarget();
                    e1.printStackTrace();
                } catch (InterruptedException e) {
                    e.printStackTrace();
                }
            }
        };
        mThread.start();
    }

    /**
     * 安裝APK檔案
     */
    public void installApk() {
        if (downloadFile != null && !downloadFile.exists()) {
            return;
        }
        Intent i = new Intent(Intent.ACTION_VIEW);
        i.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
        i.setDataAndType(Uri.parse("file://" + downloadFile.toString()),
                "application/vnd.android.package-archive");
        mContext.startActivity(i);
    }
}