AndroidManifest.xml
Activity1.java
package com.hanqi.test3;import android.content.Intent;import android.os.Bundle;import android.support.v7.app.AppCompatActivity;import java.util.Timer;import java.util.TimerTask;public class Activity1 extends AppCompatActivity { @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_1);// Intent intent = new Intent(this,Activity3.class); final Intent localIntent = new Intent(this, Activity3.class); Timer timer = new Timer(); TimerTask tast = new TimerTask() { @Override public void run() { startActivity(localIntent); } }; timer.schedule(tast,4000); }} Activity3.java
package com.hanqi.test3;import android.app.Activity;import android.app.AlertDialog;import android.app.ProgressDialog;import android.content.DialogInterface;import android.content.Intent;import android.os.Bundle;import android.view.View;import android.widget.EditText;import android.widget.TextView;import android.widget.Toast;public class Activity3 extends Activity { @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_3); } public void onclick1 (View v) { new AlertDialog.Builder(this) .setView(R.layout.loginlayout) .setNeutralButton("取消", null) .setPositiveButton("登陆", new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { AlertDialog al = (AlertDialog) dialog; EditText ed_pw = (EditText) al.findViewById(R.id.ed_pw); String str = ed_pw.getText().toString(); if (str.equals("123456")) { Intent intent = new Intent(Activity3.this, ActivityLast.class); startActivity(intent); } else { Toast.makeText(Activity3.this, "密码错误，请重新输入", Toast.LENGTH_SHORT).show(); } } }) .setCancelable(false) .show(); } public void onclick2(View v) { new AlertDialog.Builder(this) .setView(R.layout.loginlayout2) .setPositiveButton("提交注册", new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { AlertDialog al = (AlertDialog) dialog; TextView nc_qq = (TextView) al.findViewById(R.id.nc_qq); Toast.makeText(Activity3.this, "注册成功!", Toast.LENGTH_SHORT).show(); } }) .show(); } public void onclick3(View v) { final ProgressDialog pd = new ProgressDialog(this); pd.setProgressStyle(ProgressDialog.STYLE_HORIZONTAL); pd.setMessage("下载进度"); pd.show(); //创建thread实例 重写run方法 启动多线程 new Thread() { @Override public void run() { super.run(); for (int i = 0;i<=pd.getMax();i++) { try { Thread.sleep(100); }catch (Exception e) {} pd.setProgress(i); } pd.dismiss(); } }.start(); }} ActivityLast.java
package com.hanqi.test3;import android.os.Bundle;import android.support.v7.app.AppCompatActivity;import android.util.Log;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 ActivityLast extends AppCompatActivity{ List lf; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_last); ListView yemian =(ListView)findViewById(R.id.yemian); //准备数据源 lf = new ArrayList (); lf.add(new Haoyou(R.drawable.qq,"会飞的企鹅","[在线]明天上课！")); lf.add(new Haoyou(R.drawable.qq,"明日依旧","[在线]明天上课！2")); lf.add(new Haoyou(R.drawable.qq, "会飞的企鹅3", "[在线]明天上课！3")); lf.add(new Haoyou(R.drawable.qq, "会飞的企鹅4", "[在线]明天上课！4")); yemian.setAdapter(new MyBaseAdapter()); } class MyBaseAdapter extends BaseAdapter { @Override public int getCount() { return lf.size(); } @Override public Object getItem(int position) { return lf.get(position); } @Override public long getItemId(int position) { return position; } @Override public View getView(int position, View convertView, ViewGroup parent) { if (convertView == null) { Log.e("TAG", "position = " + position); LayoutInflater layoutInflater = getLayoutInflater(); convertView = layoutInflater.inflate(R.layout.loginlayout3, null); } Haoyou haoyou = lf.get(position); ImageView qq = (ImageView) convertView.findViewById(R.id.tx_qq); TextView tv1 = (TextView) convertView.findViewById(R.id.tv1); TextView tv2 = (TextView) convertView.findViewById(R.id.tv2); qq.setImageResource((int) haoyou.getImage()); tv1.setText(haoyou.getName()); tv2.setText(haoyou.getContent()); return convertView; } }} Haoyou.java
package com.hanqi.test3;/** * Created by Administrator on 2016/4/9. */public class Haoyou { private int image; private String name; private String content; public Haoyou(int image, String name, String content) { this.image = image; this.name = name; this.content = content; } public void setName(String name) { this.name = name; } public void setImage(int image) { this.image = image; } public void setContent(String content) { this.content = content; } public int getImage() { return image; } public String getName() { return name; } public String getContent() { return content; } @Override public String toString() { return "Haoyou{" + "image=" + image + ", name='" + name + '\'' + ", content='" + content + '\'' + '}'; }} MainActivity.java
package com.hanqi.test3;import android.content.Intent;import android.os.Bundle;import android.support.v7.app.AppCompatActivity;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,Activity1.class); startActivity(intent); } } activity_main.xml
activity_3.xml
activity_1.xml
activity_last.xml
loginlayout.xml
loginlayout2.xml
loginlayout.xml
效果图如下：
