软件开发记录07

今天我实现了欢迎页面和登录页面的页面布局和功能。

（1）欢迎页面布局

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent" 
     android:paddingBottom="@dimen/activity_vertical_margin"
    android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    
    >
    
     <ImageView
        android:id="@+id/ivlogin"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:layout_centerVertical="true"
        android:src="@drawable/splash_default" />
     
   
     <Button 
         android:id="@+id/btn_begin"
         android:layout_width="wrap_content"
        android:layout_height="46dp"
        android:layout_alignParentBottom="true"
        android:layout_centerHorizontal="true"
        android:layout_marginBottom="30dp"
        android:background="@drawable/jiantou2"
        android:text="@string/login_btn_begin"
        
         /> 
</RelativeLayout>

（2）欢迎页面的功能实现

package com.example.personmoney;

import java.util.Calendar;

import javax.security.auth.PrivateCredentialPermission;

import com.example.feigou.activity.MainActivity;

import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.text.format.Time;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.animation.AlphaAnimation;
import android.view.animation.Animation;
import android.widget.Button;
import android.widget.ImageView;


public class LoginActivity extends Activity {
    
    private ImageView loginImage;
    private Button loginBtn;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
    
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        initview();
        
    }
    
    public void initview() {
        loginImage=(ImageView) findViewById(R.id.ivlogin);
        loginBtn=(Button) findViewById(R.id.btn_begin);
        
        //简便动画效果
        Animation alphaAnimation=new AlphaAnimation(0.1f, 1.0f);
        alphaAnimation.setDuration(3000);//设置动画持续时间
        alphaAnimation.setFillAfter(true);//设置动画结束后保持当前的位置
        //将动画效果添加到图片中
        loginImage.startAnimation(alphaAnimation);
        
        
        
        loginBtn.setOnClickListener(new OnClickListener(){
            
          @Override
            public void onClick(View v) {
                Intent intent=new Intent();
                intent.setClass(LoginActivity.this, LoginActivity2.class);
                startActivity(intent);
                LoginActivity.this.finish();
                
            }
        });
        
    }
    

}

(3)登录页面的页面布局

<LinearLayout 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:orientation="vertical"
    android:paddingBottom="@dimen/activity_vertical_margin"
    android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    tools:context="com.example.login.MainActivity" >

    <ImageView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_centerVertical="true"
        android:layout_gravity="center_horizontal"
        android:src="@drawable/xiaohu" />

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:orientation="horizontal" >

        <ImageView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_centerVertical="true"
            android:layout_gravity="center_horizontal"
            android:src="@drawable/pingguo" />

        <EditText
            android:id="@+id/et_username"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:hint="用户名" />
    </LinearLayout>

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:orientation="horizontal" >

        <ImageView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_centerVertical="true"
            android:layout_gravity="center_horizontal"
            android:src="@drawable/pingguo" />

        <EditText
            android:id="@+id/et_userpassword"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:hint="请输入密码"
            android:password="true" />
    </LinearLayout>

    <RelativeLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:layout_marginTop="20dp" >

        <CheckBox
            android:id="@+id/cb_ischeck"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="记住用户名密码" />

        <Button
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_alignParentRight="true"
            android:onClick="login"
            android:text="登录" />
    </RelativeLayout>

</LinearLayout>

(4)登录页面的功能实现

package com.example.personmoney;

import java.util.Map;

import com.example.feigou.activity.MainActivity;

import android.app.Activity;
import android.content.Intent;
import android.content.SharedPreferences;
import android.content.SharedPreferences.Editor;
import android.os.Bundle;
import android.text.TextUtils;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.CheckBox;
import android.widget.EditText;
import android.widget.Toast;




public class LoginActivity2 extends Activity {

    private EditText et_name;
    private EditText et_userpassword;
    private CheckBox cb_ischeck;

    
    
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_login2);
        
        
        //1.找到我们关心的控件
        
         et_name=(EditText)findViewById(R.id.et_username);
        et_userpassword=(EditText)findViewById(R.id.et_userpassword);
        cb_ischeck=(CheckBox)findViewById(R.id.cb_ischeck);
        
        //在config.xml文件中把我们关心的数据取出来 然后显示在Edittext控件上
        //使用SharedPreferences 去保存数据  那到sp的实例
        SharedPreferences sPreferences=getSharedPreferences("config", 0);
        String name=sPreferences.getString("name", "");
        String password=sPreferences.getString("pwd", "");
        boolean status=sPreferences.getBoolean("status", false);
        
        et_name.setText(name);
        et_userpassword.setText(password);
        cb_ischeck.setChecked(status);
    
    }
    
    
    //写点击事件
    public void login(View v) {
        
        
        //2.1获取用户名和密码SS
        
        String name=et_name.getText().toString().trim();
        String password=et_userpassword.getText().toString().trim();
        System.out.println("cb_ischeck:"+cb_ischeck.isChecked());
        //2.2判断name和password是否为空
        if(TextUtils.isEmpty(name)||TextUtils.isEmpty(password)) {
            Toast.makeText(LoginActivity2.this, "用户名和密码不能为空", 1).show();
        }
        else {
            //进行登录的逻辑
            Intent intent=new Intent();
            intent.setClass(LoginActivity2.this, MainActivity.class);
            startActivity(intent);
            if(cb_ischeck.isChecked()) {
                
                
                //使用SharedPreferences 去保存数据  那到sp的实例
                SharedPreferences sPreferences=getSharedPreferences("config", 0);
                //获取sp的编辑器
                Editor editor=sPreferences.edit();
                editor.putString("name", name);
                editor.putString("pwd", password);
                editor.putBoolean("status", true);
                //提交
                editor.commit();
            
            }
            else {
                Toast.makeText(LoginActivity2.this, "请勾选'记住用户名密码'", 1).show();
            }
        }
    }

    
}

（5）软件设置的功能实现

package com.example.feigou.test;

import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;

import com.example.personmoney.R;

import android.app.Activity;
import android.content.Intent;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.graphics.drawable.BitmapDrawable;
import android.graphics.drawable.Drawable;
import android.net.Uri;
import android.os.Bundle;
import android.os.Environment;
import android.provider.MediaStore;
import android.provider.MediaStore.Audio.Media;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.ImageView;
import android.widget.TextView;
import android.widget.Toast;

public class SettingActivity extends Activity implements OnClickListener {
    private ImageView headImage;
    private TextView tvNickName;
    private TextView tvWeiXinNum;
    private Button setting_photo;
    
    private ImageView ivHead;//头像显示
    private Button btnTakephoto;//拍照
    private Button btnphoto;//相册
    private Bitmap head;//头像
    private static String path="storage/emulated/DCIM/Camera/";//存放照片路径
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        /**     
             * 方法的一句话概述
             * 方法详述（简单方法可不必详述）
             * @param s 说明参数含义
             * @return 说明返回值含义
             * @throws IOException 说明发生此异常的条件
             * @throws NullPointerException 说明发生此异常的条件
             */
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_setting);
        init();
    }

    public void init() {
        setting_photo = (Button) findViewById(R.id.setting_photo);
        setting_photo.setOnClickListener(this);
        headImage = (ImageView) findViewById(R.id.main_me_headphoto);
        
        
        //findViewById(R.id.main_me_setting).setOnClickListener(this);
        findViewById(R.id.main_me_expression).setOnClickListener(this);// 表情
        findViewById(R.id.main_me_collect).setOnClickListener(this);// 收藏
        
        //设置头像
        btnphoto=(Button) findViewById(R.id.btn_photo);
        btnTakephoto=(Button) findViewById(R.id.btn_takephoto);
        ivHead=(ImageView) findViewById(R.id.main_me_headphoto);
        //从Sd卡中找头像，转换成Bitmap
        Bitmap bt=BitmapFactory.decodeFile(path+"head.jpg");
        if(bt!=null) {
            Drawable drawable=new BitmapDrawable(bt);//转换成drawerable
            ivHead.setImageDrawable(drawable);
        }else {//如果没有照片再从服务器取头像，存储取回来的头像
            
        }
         
    }

    @Override
    public void onClick(View v) {
        // TODO Auto-generated method stub
        switch (v.getId()) {
        case R.id.setting_photo: {
            Toast.makeText(this, "进入圖片頁面，暂时还没实现",
                    Toast.LENGTH_SHORT).show();
            break;

        }
        case R.id.main_me_collect: {
            Toast.makeText(this, "进入收藏界面，暂时还没实现",
                    Toast.LENGTH_SHORT).show();
            break;
        }
        case R.id.main_me_expression: {
            Toast.makeText(this, "进入表情界面，暂时还没实现",
                    Toast.LENGTH_SHORT).show();
            break;
        }
        
        case R.id.btn_photo:{//从相册里取照片
           Intent intent1=new Intent(Intent.ACTION_PICK,null);
           intent1.setDataAndType(MediaStore.Images.Media.EXTERNAL_CONTENT_URI, "imag/*");
           startActivityForResult(intent1, 1);
           break;
        }
        case R.id.btn_takephoto:{//从相册里取照片
               Intent intent2=new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
              intent2.putExtra(MediaStore.EXTRA_OUTPUT,Uri.fromFile(new File(Environment.getExternalStorageDirectory(),"head.jpg")));
               startActivityForResult(intent2, 2);
               break;
            }
        
        /*case R.id.main_me_setting: {
            //可以修改自己的頭像
            Toast.makeText(this, "进入個人設置界面，暂时还没实现",
                    Toast.LENGTH_SHORT).show();
            break;
        }*/

        }
    }        
        
    @Override
    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
        // TODO Auto-generated method stub
        switch(requestCode) {
        case 1:
            if(resultCode==RESULT_OK) {
                cropPhoto(data.getData());//裁剪图片
                
            }
            break;
        case 2:
            if(resultCode==RESULT_OK) {
                File temp=new File(Environment.getExternalStorageDirectory()+"/head.jpg");
                cropPhoto(Uri.fromFile(temp));//裁剪图片
            }
            break;
        case 3:
            if(data!=null) {
                Bundle extras=data.getExtras();
                head=extras.getParcelable("data");
                if(headImage!=null) {
                    //上传服务器
                    setPicToView(head);//保存在SD卡中
                ivHead.setImageBitmap(head);//用ImageView 显示出来
                }
            }
            break;
        default:
            break;
            
        }
        super.onActivityResult(requestCode, resultCode, data);
    }

    //调用系统的裁剪
    public void cropPhoto(Uri uri) {
        Intent intent=new Intent("com.android.camera.action.CROP");
        intent.setDataAndType(uri, "imag/*");
        intent.putExtra("crop", "true");
        //aspectX aspectY是宽高的比例
        intent.putExtra("aspectX", 1);
        intent.putExtra("aspectY", 1);
        //outputX outputY是裁剪图片宽高
        intent.putExtra("outputX", 150);
        intent.putExtra("outputY", 150);
        intent.putExtra("return_data", true);
        startActivityForResult(intent, 3);
            
    }
    //保存在SD卡
    
    private void setPicToView(Bitmap mBitmap) {
        String sdStatus=Environment.getExternalStorageState();
        if(!sdStatus.equals(Environment.MEDIA_MOUNTED)) {//检测sd是否可用
          return;    
        }
        FileOutputStream b=null;
        File file=new File(path);
        file.mkdirs();//创建文件夹
        String fileName=path+"head.jpg";//图片名字
        try {
            b=new FileOutputStream(fileName);
            mBitmap.compress(Bitmap.CompressFormat.JPEG, 100, b);
        }catch(FileNotFoundException e) {
            e.printStackTrace();
        }finally {
            try {
                //关闭流
                b.flush();
                b.close();
            }catch(IOException e){
                e.printStackTrace();
            }
        }
        
    }
    

}