Android通过U盘更新程序

源码下载

https://download.csdn.net/download/qq_31939617/10488907 下载

流程：监听U盘插拔事件，弹出对话框询问是否升级，如果升级则调用升级模块。

MainActivity.class

package com.example.sz.usbupdate;

import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;

import java.io.File;

import android.net.Uri;
import android.app.AlertDialog;
import android.app.Dialog;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.DialogInterface;
import android.content.Intent;
import android.content.IntentFilter;
import android.content.pm.PackageManager.NameNotFoundException;
import android.util.Log;
import android.widget.Toast;

public class MainActivity extends AppCompatActivity {
    private static final String TAG = "MainActivity";
    private String path = "/mnt/usbhost1/123.apk";


    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        udiskPluggedin(); // 监听U盘热插拔模块启动
        Log.e(TAG, "------VesionName: " + getVesionName(this));
        Log.e(TAG, "-------VesionCode: " + getVersionCode(this));
        Log.e(TAG, "---------getPackageName: " + this.getPackageName());

    }


    /******************************
     * 模块1：检测U盘热插拔事件
     *
     * 使用IntentFilter来选择接收广播的类型
     * 注册一个广播接收者来处理接收到广播的事件
     *
     *****************************/

    /* 监听U盘插拔 */
    private void udiskPluggedin() {

        IntentFilter filter = new IntentFilter();
        filter.addAction("android.hardware.usb.action.USB_STATE");
        filter.addAction("android.hardware.action.USB_DISCONNECTED");
        filter.addAction("android.hardware.action.USB_CONNECTED");

        filter.addAction("android.intent.action.UMS_CONNECTED");
        filter.addAction("android.intent.action.UMS_DISCONNECTED");
        // filter.addAction(UsbManager.ACTION_USB_ACCESSORY_ATTACHED);
        // filter.addAction(UsbManager.ACTION_USB_ACCESSORY_DETACHED);
        // filter.addAction(UsbManager.ACTION_USB_DEVICE_ATTACHED);
        // filter.addAction(UsbManager.ACTION_USB_DEVICE_DETACHED);
        filter.addAction(Intent.ACTION_MEDIA_CHECKING);
        filter.addAction(Intent.ACTION_MEDIA_MOUNTED);
        filter.addAction(Intent.ACTION_MEDIA_EJECT);
        filter.addAction(Intent.ACTION_MEDIA_REMOVED);
        filter.addDataScheme("file");// 系统中每个组件，如果想收取隐式事件(未指定接收者)，则必须声明自己的IntentFilter（自我介绍，我对什么样的信件感兴趣）。
        UdiskReceiver mReceiver = new UdiskReceiver();
        registerReceiver(mReceiver, filter);

    }

    private class UdiskReceiver extends BroadcastReceiver {

        @Override
        public void onReceive(Context arg0, Intent arg1) {

            String action = arg1.getAction();
            Log.v(TAG, "action = " + action);
            if (action.equals(Intent.ACTION_MEDIA_CHECKING)) {
                // Toast.makeText(getApplicationContext(), "正在挂载U盘",
                // Toast.LENGTH_SHORT).show();
                Log.i(TAG, "正在挂载U盘");
            } else if (action.equals(Intent.ACTION_MEDIA_MOUNTED)) {
                Toast.makeText(getApplicationContext(), "U盘挂载成功",
                        Toast.LENGTH_SHORT).show();
                Log.i(TAG, "U盘挂载成功");

                // 显示是否更新对话框
                try {
                    showUpdateDialog();
                } catch (NameNotFoundException e) {
                    e.printStackTrace();
                }

                /*
                 * Intent intent = new Intent();
                 * intent.setClassName("com.serviatech.test",
                 * "com.serviatech.test.activity.UpdateActivity");
                 * intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);//
                 * Intent.FLAG_ACTIVITY_CLEAR_TOP | startActivity(intent);
                 */
            } else if (action.equals(Intent.ACTION_MEDIA_EJECT)) {
                Toast.makeText(getApplicationContext(), "U盘已移除",
                        Toast.LENGTH_SHORT).show();
            }
        }

    }

    /******************************
     * 模块2：获取apk版本信息
     *
     * AndroidManifest.xml中定义的
     * android:versionName 和 VersionCode 信息。     *
     *
     *****************************/
    /*
     * 功能：获取apk的VesionName，即AndroidManifest.xml中定义的android:versionName
     */
    public String getVesionName(Context context) {
        String versionName = null;
        try {
            versionName = context.getPackageManager().getPackageInfo(
                    context.getPackageName(), 0).versionName;
        } catch (NameNotFoundException e) {
            Log.e(TAG, e.getMessage());
        }

        return versionName;
    }

    // 功能：获取apk的versionCode，即AndroidManifest.xml中定义的android:versionCode

    public int getVersionCode(Context context) {
        int versionCode = 0;
        try {
            versionCode = context.getPackageManager().getPackageInfo(
                    context.getPackageName(), 0).versionCode;
        } catch (NameNotFoundException e) {
            Log.e(TAG, e.getMessage());
        }

        return versionCode;
    }


    /********************
     * 模块3：弹出是否更新对话框
     *
     * *****************/

    private void showUpdateDialog() throws NameNotFoundException {

        StringBuffer sb = new StringBuffer();
        sb.append("当前版本：");
        sb.append(getVesionName(this));
        sb.append("     VerCode:");
        sb.append(getVersionCode(this));
        sb.append("\n是否更新？");
        Dialog dialog = new AlertDialog.Builder(MainActivity.this)
                .setTitle("软件更新")
                .setMessage(sb.toString())
                // 设置内容
                .setPositiveButton("更新", // 设置确定按钮
                        new DialogInterface.OnClickListener() {

                            @Override
                            public void onClick(DialogInterface dialog,
                                                int which) {

                                /**************
                                 * 更新核心代码
                                 *
                                 * ***********/
                                String fileName = path;
                                Uri uri = Uri.fromFile(new File(fileName));

                                Intent intent = new Intent(Intent.ACTION_VIEW);
                                intent.setDataAndType(uri,
                                        "application/vnd.android.package-archive");
                                startActivity(intent);
                            }
                        })
                .setNegativeButton("暂不更新",
                        new DialogInterface.OnClickListener() {
                            public void onClick(DialogInterface dialog,
                                                int whichButton) {
                                // 点击"取消"按钮之后退出程序
                                finish();
                            }
                        }).create();// 创建

        dialog.show();
    }
}

源码下载

https://download.csdn.net/download/qq_31939617/10488907 下载