efunbox-xyyf-mobile-android/app/src/main/java/com/edufound/android/xyyf/util/UpdateUtil.java

package com.edufound.android.xyyf.util;

import android.app.Activity;
import android.app.Dialog;
import android.content.Context;
import android.content.DialogInterface;
import android.os.Handler;
import android.os.Looper;
import android.os.Message;
import android.view.Display;
import android.view.Gravity;
import android.view.KeyEvent;
import android.view.LayoutInflater;
import android.view.Window;
import android.view.WindowManager;
import android.widget.FrameLayout;
import android.widget.ProgressBar;
import android.widget.TextView;
import android.widget.Toast;

import com.edufound.android.xyyf.R;

import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.net.URL;
import java.net.URLConnection;

public class UpdateUtil {

    String mNewAppFile;
    int downLoadFileSize;
    Activity mContext;
    File mApkDir;
    int fileSize;
    ProgressBar pBar;
    TextView tText;

    public UpdateUtil(Activity context) {
        mContext = context;
        mApkDir = context.getDir("apk", Context.MODE_PRIVATE);
        showWindow();
    }

    //显示对话框
    private void showWindow() {
        mDownHandler.sendEmptyMessage(0x2283);
    }

    // 下載文件
    public void down_file(String url) throws IOException {
        String filename = url.substring(url.lastIndexOf("/") + 1);
        URL myURL = new URL(url);
        URLConnection conn = myURL.openConnection();
        conn.connect();
        InputStream is = conn.getInputStream();
        fileSize = conn.getContentLength();
        if (fileSize <= 0)
            throw new RuntimeException("filesize is 0");
        if (is == null)
            throw new RuntimeException("stream is null");
        mNewAppFile = mApkDir.toString() + "/" + filename;
        FileOutputStream fos = new FileOutputStream(mNewAppFile);

        byte buf[] = new byte[1024];
        downLoadFileSize = 0;
        sendMsg(0);
        do {
            int numread = is.read(buf);
            if (numread == -1) {
                break;
            }
            fos.write(buf, 0, numread);
            downLoadFileSize += numread;
            sendMsg(1);//
        } while (true);
        sendMsg(2);//
        try {
            is.close();
        } catch (Exception ex) {
            Logger.e("下载文件异常--" + ex.getMessage());
        }
    }

    private void sendMsg(int flag) {
        Message msg = new Message();
        msg.what = flag;
        mDownHandler.sendMessage(msg);
    }

    Dialog dialog;
    // 更新下载
    private Handler mDownHandler = new Handler(Looper.getMainLooper()) {
        @Override
        public void handleMessage(Message msg) {
            if (!Thread.currentThread().isInterrupted()) {
                switch (msg.what) {
                    case 0x2283:
                        FrameLayout frameLayout = (FrameLayout) LayoutInflater.from(mContext).inflate(R.layout.window_upgrade, null);
                        pBar = (ProgressBar) frameLayout.findViewById(R.id.upgrade_progress);
                        tText = (TextView) frameLayout.findViewById(R.id.upgrade_text);
                        dialog = new Dialog(mContext);
                        dialog.setOnKeyListener(new DialogInterface.OnKeyListener() {
                            @Override
                            public boolean onKey(DialogInterface dialog, int keyCode, KeyEvent event) {
                                if (keyCode == KeyEvent.KEYCODE_BACK || keyCode == KeyEvent.KEYCODE_ESCAPE) {
                                    return true;
                                }

                                return false;
                            }
                        });
                        dialog.setContentView(frameLayout);
                        Window dialogWindow = dialog.getWindow();
                        dialogWindow.setGravity(Gravity.CENTER);
                        WindowManager m = mContext.getWindowManager();
                        Display d = m.getDefaultDisplay(); // 获取屏幕宽、高用
                        WindowManager.LayoutParams p = dialogWindow.getAttributes(); // 获取对话框当前的参数值
                        p.height = (int) (d.getHeight() * 0.6);
                        p.width = (int) (d.getWidth() * 0.8);
                        dialogWindow.setAttributes(p);
                        dialog.setTitle("升级中");
                        dialog.setCanceledOnTouchOutside(false);
                        dialog.show();
                        break;
                    case 0:
                        pBar.setMax(fileSize);
                    case 1:
                        pBar.setProgress(downLoadFileSize);
                        int result = downLoadFileSize * 100 / fileSize;
                        tText.setText((downLoadFileSize / 1024 / 1024) + "MB/" + (fileSize / 1024 / 1024) + "MB");
                        if (result == 100) {

                        }
                        break;
                    case 2:
                        dialog.dismiss();
                        EduFoundUtil.openFile(mContext, new File(mNewAppFile));
                        break;
                    case -1:
                        String error = msg.getData().getString("error");
                        Toast.makeText(mContext, error, Toast.LENGTH_SHORT).show();
                        break;
                }
            }
            super.handleMessage(msg);
        }
    };
}