登陆界面练习

 

XML代码

 

<?xml version="1.0" encoding="utf-8"?>
<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: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.dell.xueguan.MainActivity">

    <ImageButton
        android:layout_width="100dp"
        android:layout_height="100dp"
        android:src="@drawable/xueguan"
        android:onClick="onClick"
        android:id="@+id/zhuomian"/>

    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="学员管理"
        android:textSize="20sp"
        android:layout_below="@+id/zhuomian"
        android:layout_marginLeft="10dp"/>

</RelativeLayout>

JAVA代码

package com.example.dell.xueguan;

import android.content.Intent;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;

public class MainActivity extends AppCompatActivity {

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

    public void onClick(View v)
    {
        Intent intent = new Intent(this,DengLuActivity.class);

        startActivity(intent);

    }
}

 

XML代码

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical"

    android:background="@drawable/beijing"
    >

    <EditText
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:hint="请输入用户名"
        android:layout_marginTop="20dp"
        android:layout_marginLeft="20dp"/>

    <EditText
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:hint="请输入密码"
        android:layout_marginTop="20dp"
        android:layout_marginLeft="20dp"
        android:password="true"/>
    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:orientation="horizontal">
        <Button
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="注册"
            android:layout_weight="1"
            android:background="@drawable/zhuce"
            android:layout_marginLeft="10dp"
            android:layout_marginRight="10dp"/>

        <Button
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="登陆"
            android:layout_weight="1"
            android:background="@drawable/zhuce"
            android:layout_marginRight="10dp"
            android:id="@+id/login"
            android:onClick="loginclick"/>
    </LinearLayout>
</LinearLayout>

JAVA代码

package com.example.dell.xueguan;

import android.app.ProgressDialog;
import android.content.Intent;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.view.View;

public class DengLuActivity extends AppCompatActivity {

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

        //Button login = (Button)findViewById(R.id.login);

    }

    public void loginclick(View v)
    {
        final ProgressDialog progressDialog = new ProgressDialog(this);

        progressDialog.setMessage("请稍后......");

        progressDialog.show();

        final Intent intent = new Intent(this,jiemian1.class);

        new Thread()
        {
            @Override
            public void run() {
                super.run();


                try {
                    Thread.sleep(3000);
                } catch (Exception e) {

                }

                progressDialog.dismiss();
                startActivity(intent);
            }
        }.start();
    }
}

 

XML代码

<?xml version="1.0" encoding="utf-8"?>
<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: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.dell.xueguan.jiemian1"
    android:background="@drawable/jiemian1">

    <ImageButton
        android:layout_width="100dp"
        android:layout_height="100dp"
        android:src="@drawable/tianjia"
        android:id="@+id/tianjia"
        android:onClick="xuanke"
        />
    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="学员列表"
        android:layout_below="@+id/tianjia"
        android:textSize="20sp"
        android:layout_marginLeft="10dp"
        />


    <ImageButton
        android:layout_width="100dp"
        android:layout_height="100dp"
        android:src="@drawable/jindu"
        android:id="@+id/jindu"
        android:layout_marginLeft="160dp"
        android:onClick="xiazai"
        />

    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="课程下载"
        android:layout_below="@+id/jindu"
        android:textSize="20sp"
        android:layout_marginLeft="170dp"

        />


</RelativeLayout>

JAVA代码

package com.example.dell.xueguan;

import android.content.Intent;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;

public class jiemian1 extends AppCompatActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_jiemian1);
    }

    public void xuanke(View view)
    {
        Intent intent = new Intent(this,xueshenglibiao.class);

        startActivity(intent);
    }

    public void xiazai(View view){


    }
}

 

XML代码

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="wrap_content">

    <ImageView
        android:layout_width="100dp"
        android:layout_height="100dp"
        android:src="@drawable/touxiang1"
        android:id="@+id/tx_1"/>

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:orientation="vertical"
        android:layout_gravity="center_vertical"
        android:layout_marginLeft="20dp">

        <TextView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="姓名：赵四"
            android:id="@+id/tv_1"/>

        <TextView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="选择课程：英语"
            android:paddingTop="10dp"
            android:id="@+id/tv_2"/>
    </LinearLayout>

</LinearLayout>

<?xml version="1.0" encoding="utf-8"?>
<ListView xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:id="@+id/xueshengliebiao"
   >

</ListView>

 

JAVA代码

package com.example.dell.xueguan;

import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.ImageView;
import android.widget.ListView;
import android.widget.TextView;

import java.util.ArrayList;
import java.util.List;

public class xueshenglibiao extends AppCompatActivity {

    List<XueYuanInfo> xyif;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_xueshenglibiao);

        ListView sa_1= (ListView)findViewById(R.id.xueshengliebiao);

        xyif = new ArrayList<XueYuanInfo>();

        xyif.add(new XueYuanInfo(R.drawable.touxiang1,"赵四","语文"));
        xyif.add(new XueYuanInfo(R.drawable.touxiang2,"小明","数学"));
        xyif.add(new XueYuanInfo(R.drawable.touxiang13,"李磊","英语"));
        xyif.add(new XueYuanInfo(R.drawable.touxiang14,"憨豆","历史"));
        xyif.add(new XueYuanInfo(R.drawable.touxiang15,"七仔","地理"));
        xyif.add(new XueYuanInfo(R.drawable.touxiang16,"李东","语文"));
        xyif.add(new XueYuanInfo(R.drawable.touxiang17, "韩丽", "历史"));
        xyif.add(new XueYuanInfo(R.drawable.touxiang18,"刘璇","语文"));
        xyif.add(new XueYuanInfo(R.drawable.touxiang19,"张三","语文"));
        xyif.add(new XueYuanInfo(R.drawable.touxiang1,"王宇","语文"));
        xyif.add(new XueYuanInfo(R.drawable.touxiang2,"王武","语文"));

        sa_1.setAdapter(new MyAdapter());


    }

    class MyAdapter extends BaseAdapter
    {
        @Override
        public int getCount() {
            return xyif.size();
        }

        @Override
        public Object getItem(int position) {
            return xyif.get(position);
        }

        @Override
        public long getItemId(int position) {
            return position;
        }

        @Override
        public View getView(int position, View convertView, ViewGroup parent) {

            if(convertView == null) {

                LayoutInflater layoutInflater = getLayoutInflater();

                convertView = layoutInflater.inflate(R.layout.xueshengliebiaolayout,null);
            }

                XueYuanInfo xueYuanInfo = xyif.get(position);

            ImageView iv_1 = (ImageView)convertView.findViewById(R.id.tx_1);
            TextView tv_1 = (TextView)convertView.findViewById(R.id.tv_1);
            TextView tv_2 = (TextView)convertView.findViewById(R.id.tv_2);

            iv_1.setImageResource(xueYuanInfo.getImage());

            tv_1.setText(xueYuanInfo.getName());

            tv_2.setText(xueYuanInfo.getKecheng());




            return convertView;
        }
    }
}

 

package com.example.dell.xueguan;

/**
 * Created by DELL on 2016/4/7.
 */
public class XueYuanInfo {

    private int image;

    private String name;

    private String kecheng;

    public int getImage() {
        return image;
    }

    public void setImage(int image) {
        this.image = image;
    }

    public String getKecheng() {
        return kecheng;
    }

    public void setKecheng(String kecheng) {
        this.kecheng = kecheng;
    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public XueYuanInfo(int image, String kecheng, String name) {
        this.image = image;
        this.kecheng = kecheng;
        this.name = name;
    }
}