Android项目实战_手机安全卫士splash界面

- 根据代码的类型组织包结构
1. 界面 com.hb.mobilesafe.activities
2. 服务 com.hb.mobilesafe.services
3. 业务逻辑 com.hb.mobilesafe.engine
4. 数据库 com.hb.mobilesafe.db
5. 数据库增删改查 com.hb.mobilesafe.db.dao
6. 工具类 com.hb.mobilesafe.utils
7. 自定义view com.hb.mobilesafe.ui

###3.splash界面的作用
1. 展现产品的logo,提升产品的知名度.
2. 初始化应用程序的数据.
3. 连接服务器,查找可更新的版本,自动更新
4. 用户操作指南
5. 新版本特性提醒

4.布局文件的命名规则
SplashActivity--->activity_spalsh.xml
XxxActivity---> activity_xxx.xml

###5.获取应用程序版本号
//用PackageManager拿到PackageInfo，PackageInfo中的versionName
PackageInfo packinfo = context.getPackageManager().getPackageInfo(
context.getPackageName(), 0);
String version = packinfo.versionName;

###6.源代码版本控制
- 安装VisualSVN Server——SVN服务器，一直下一步即可
- 导入仓库到服务器
1.在Repositories处右键，选择Import Existing Repository
2.选择Copy repository from another location，下一步
3.点击Browse，选择仓库路径，"代码/代码仓库/Repository/mobilesafe"，点击下一步
4.点击Import
5.点击Finish，导入完成
- 安装TortoiseSVN——SVN客户端，一直下一步即可
1.在想要检出代码的地方右键，选择SVN Checkout
2.URL of repository处填https://127.0.0.1/svn/mobilesafe/，地址也可以从SVN服务器的mobilesafe处右键选择Copy URL to clipboard拷贝
3.Checkout directory出填写检出代码要放的位置，然后点击OK
4.完成代码的检出
- 将代码更新到指定版本
1.mobilesafe文件夹出右键，选择Update to version
2.点击show log
3.点击左下角的show all
4.选择要更新的版本，点击OK
5.版本更新完成

###7.应用自动更新的逻辑图

###8.获取服务器版本号
//获取服务器地址
String path = getResources().getString(R.string.url);
URL url = new URL(path);

//创建网络连接
HttpURLConnection conn = (HttpURLConnection) url.openConnection();
conn.setRequestMethod("GET");
conn.setConnectTimeout(5000);

//发出请求，获得返回码
int code = conn.getResponseCode();
if(code ==200){

//获取服务器返回的流并进行解析
InputStream is = conn.getInputStream();
String result = StreamTools.readStream(is);

//转化为json并解析出版本号
JSONObject json = new JSONObject(result);
String serverVersion = json.getString("version");
Log.i(TAG,"服务器版本:"+serverVersion);
}

###9.将流转化为字符串
public static String readStream(InputStream is) throws IOException{

//ByteArrayOutputStream类是在创建它的实例时，程序内部创建一个byte型数组的缓冲区，缓冲区会随着数据的不断写入而自动增长。可使用 toByteArray()和 toString()获取数据
ByteArrayOutputStream baos = new ByteArrayOutputStream();
byte[] buffer = new byte[1024];
int len = -1;
while((len = is.read(buffer))!=-1){
baos.write(buffer, 0, len);
}
is.close();
return baos.toString();
}

###10.弹出对话框
1.使用AlertDialog.Builder
2.设置标题、信息、点击事件等
3.调用show方法显示出来，调用dismiss方法消失

###11.下载apk
1.使用开源框架xUtils
2.使用HttpUtils的download方法，填入三个参数：服务器下载地址，手机中的存储位置、回调事件
3.回调事件中有三个常用的方法：onSuccess下载成功、onFailure下载失败、onLoading更新下载进度

xUtils补充
http://my.oschina.net/u/1171837/blog/147544 作者博客

###12.安装apk
1.调用系统的安装apk的界面，传入对应的参数
2.具体实现方式
Intent intent = new Intent();
intent.setAction("android.intent.action.VIEW");
intent.addCategory("android.intent.category.DEFAULT");
intent.setDataAndType(
Uri.fromFile(fileinfo.result),
"application/vnd.android.package-archive");
startActivity(intent);

###13.应用程序的覆盖安装要满足的条件
1. 两个版本签名一致
2. 两个版本包名一致

###14.跑马灯效果的TextView
1. 系统的TextView不能获取焦点，使用自定义控件
2. 继承TextView控件，重写isFocused方法，直接返回true，让其获取焦点
3. 设置android:ellipsize="marquee"

###15.旋转的弘博logo
1. 使用系统提供的属性动画
2. 具体实现方式
ObjectAnimator oa = ObjectAnimator.ofFloat(iv_home_logo, "rotationY",
45, 90, 135, 180, 225, 270, 315);
oa.setDuration(3000);
oa.setRepeatCount(ObjectAnimator.INFINITE);
oa.setRepeatMode(ObjectAnimator.RESTART);
oa.start();

贴上对应的源码：

package com.hb.mobilesafe.activities;

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

import org.json.JSONObject;

import android.app.Activity;
import android.app.AlertDialog;
import android.app.AlertDialog.Builder;
import android.app.ProgressDialog;
import android.content.DialogInterface;
import android.content.DialogInterface.OnClickListener;
import android.content.Intent;
import android.content.SharedPreferences;
import android.content.res.AssetManager;
import android.net.Uri;
import android.os.Bundle;
import android.os.Environment;
import android.os.Handler;
import android.os.Message;
import android.os.SystemClock;
import android.view.Window;
import android.widget.TextView;
import android.widget.Toast;

import com.hb.demo_mobilesafe.R;
import com.hb.mobilesafe.utils.GetVersonName;
import com.hb.mobilesafe.utils.ReadStrem;
import com.lidroid.xutils.HttpUtils;
import com.lidroid.xutils.exception.HttpException;
import com.lidroid.xutils.http.ResponseInfo;
import com.lidroid.xutils.http.callback.RequestCallBack;

public class SplashActivities extends Activity {
    protected static final int SUCCESS = 1;
    protected static final int ERROR = 2;
    private TextView tv_splash_version;
    private String localVersion;
    private String serviceVerson;
    private String apkpath;
    private String descritoin;
    private Handler handler=new Handler(){
        public void handleMessage(android.os.Message msg) {
            switch (msg.what) {
            case SUCCESS:
                //判断出的版本号不一样进行升级
                builderLoading();
                break;

            case ERROR:
                Toast.makeText(SplashActivities.this, "错误信息："+msg.obj, 0).show();
                loadUI();
                break;
            }
        }


    };

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        requestWindowFeature(Window.FEATURE_NO_TITLE);
        setContentView(R.layout.activity_splash);
        tv_splash_version = (TextView) findViewById(R.id.tv_splash_version);
        SharedPreferences sp=getSharedPreferences("config", MODE_PRIVATE);
        //获取开关状态判断是否进行升级提示
        boolean tag = sp.getBoolean("update", true);
        if(tag){
            initDate();
        }else{
            new Thread(){
                public void run() {
                    SystemClock.sleep(1500);
                    loadUI();
                };
            }.start();
        }
        localVersion = GetVersonName.version(this);
        tv_splash_version.setText("版本号："+localVersion);
        //初始化导入数据库到手机
        importDataBase("antivirus.db");

    }
    //初始化导入数据库到手机
    private void importDataBase(String fileName) {
        File file=new File(getFilesDir(), fileName);
        if(file.exists() && file.length()>0){
            return;
        }
        try {
            AssetManager assets = getAssets();
            InputStream is= assets.open(fileName);
            FileOutputStream fs=new FileOutputStream(file);
            int len=-1;
            byte [] arr=new byte[1024];
            while ((len =is.read(arr))!=-1) {
                fs.write(arr, 0, len);
            }
            fs.close();
            is.close();
        } catch (IOException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
    }

    private void initDate() {

        new Thread(){

            private long start;
            private Message message;
            public void run() {
                String path=getResources().getString(R.string.path);

                try {
                    URL url = new URL(path);
                    HttpURLConnection conn =(HttpURLConnection) url.openConnection();
                    conn.setConnectTimeout(5000);
                    conn.setRequestMethod("GET");
                    int code = conn.getResponseCode();
                    if(code == 200){
                        InputStream stream = conn.getInputStream();
                        String json = ReadStrem.readSreamUtil(stream);
                        JSONObject ob=new JSONObject(json);
                        serviceVerson = ob.getString("verson");
                        descritoin = ob.getString("descritoin");
                        apkpath = ob.getString("apkpath");
                        start=SystemClock.currentThreadTimeMillis();
                        /**
                         * 进行本地版本与服务器版本的对比
                         */
                        if(localVersion.equals(serviceVerson)){
                            //不需要升级直接调转
                            //                            loadUI();
                        }else{
                            message = new Message();
                            message.what=SUCCESS;
                            handler.sendMessage(message);


                        }
                    }

                } catch (Exception e) {
                    e.printStackTrace();
                    message = new Message();
                    message.what=ERROR;
                    message.obj="code:404";
                    handler.sendMessage(message);

                }finally{
                    long end=SystemClock.currentThreadTimeMillis();
                    long et=end-start;
                    if(et>2000){
                    }else{
                        SystemClock.sleep(2000-et);
                    }

                }
            }


        }.start();
    }
    /**
     * 更新UI
     */
    private void loadUI() {
        Intent intent=new Intent(SplashActivities.this, HomeActivities.class);
        startActivity(intent);
        finish();
    };
    //提示用户升级
    private void builderLoading() {
        AlertDialog.Builder alert=new Builder(SplashActivities.this);
        alert.setTitle("版本升级提示");
        alert.setCancelable(false);//设置锁定其他界面点击事件
        alert.setMessage(descritoin);
        //        alert.setIcon(R.drawable.);
        alert.setPositiveButton("立刻升级", new OnClickListener() {

            private ProgressDialog pd;

            @Override
            public void onClick(DialogInterface dialog, int which) {
                Toast.makeText(SplashActivities.this, "升级吧", 0).show();
                pd = new ProgressDialog(SplashActivities.this);
                pd.setProgressStyle(ProgressDialog.STYLE_HORIZONTAL);
                pd.show();
                
                HttpUtils utils=new HttpUtils();
                if(Environment.getExternalStorageState().equals(Environment.MEDIA_MOUNTED)){
                    //获取SD卡的对象
                    File sd=Environment.getExternalStorageDirectory();
                    File file=new File(sd, SystemClock.currentThreadTimeMillis()+".apk");
                    utils.download(apkpath, file.getAbsolutePath(),new RequestCallBack<File>(){

                        @Override
                        public void onFailure(HttpException arg0, String arg1) {
                            pd.dismiss();
                        }

                        @Override
                        public void onSuccess(ResponseInfo<File> arg0) {
                            pd.dismiss();
                            //安装APP
                            Intent intent=new Intent();
                            intent.setAction("android.intent.action.VIEW");
                            intent.addCategory("android.intent.category.DEFAULT");
                            intent.setDataAndType(
                                    Uri.fromFile(arg0.result),
                                    "application/vnd.android.package-archive");
                            startActivity(intent);
                            finish();
                        }

                        @Override
                        public void onLoading(long total, long current,
                                boolean isUploading) {
                            pd.setMax((int)total);
                            pd.setProgress((int)current);
                            super.onLoading(total, current, isUploading);
                        }
                    });

                }
            }
        });
        alert.setNegativeButton("下次再说", new OnClickListener() {

            @Override
            public void onClick(DialogInterface dialog, int which) {
                loadUI();
            }
        });
        alert.show();

    }


}

布局文件：

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:background="@drawable/splash"
    tools:context="${relativePackage}.${activityClass}" >

    <TextView
        android:id="@+id/tv_splash_version"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentBottom="true"
        android:layout_centerHorizontal="true"
        android:layout_marginBottom="15dip"
        android:textSize="16sp"
        android:text="版本号：1.0" />

</RelativeLayout>

 

给上这个项目中所需的所有权限不懂的可以百度一下：

<uses-permission android:name="android.permission.CALL_PHONE" />
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.MOUNT_UNMOUNT_FILESYSTEMS" />
<uses-permission android:name="android.permission.PROCESS_OUTGOING_CALLS" />
<uses-permission android:name="android.permission.READ_PHONE_STATE" />
<uses-permission android:name="android.permission.READ_CONTACTS" />
<uses-permission android:name="android.permission.WRITE_CONTACTS" />
<uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED" />
<uses-permission android:name="android.permission.SEND_SMS" />
<uses-permission android:name="android.permission.RECEIVE_SMS" />
<uses-permission android:name="android.permission.ACCESS_MOCK_LOCATION" />
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
<uses-permission android:name="android.permission.GET_TASKS" />
<uses-permission android:name="android.permission.KILL_BACKGROUND_PROCESSES" />
<uses-permission android:name="android.permission.GET_PACKAGE_SIZE" />
<uses-permission android:name="android.permission.READ_CALL_LOG" />
<uses-permission android:name="android.permission.WRITE_CALL_LOG" />

<uses-permission android:name="android.permission.PROCESS_OUTGOING_CALLS" />
<!-- 短信备份 -->
<uses-permission android:name="android.permission.READ_SMS" />
<uses-permission android:name="android.permission.WRITE_SMS" />
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.KILL_BACKGROUND_PROCESSES" />
<uses-permission android:name="android.permission.GET_PACKAGE_SIZE" />
<uses-permission android:name="android.permission.CLEAR_APP_CACHE" />