Android APP 登录 注册 SAE 部署 - [5] 客户端编写 - 注册
链接
内容
READ ME：
如果你需要一个自己使用的APP登录和注册的Android demo。
使用的是JAVA Web发布APP需要的信息
JAVA Web获取APP的请求信息后查询外部数据库Mysql，并返回结果。
APP通过Http client获取发布的信息
进行登录或者注册操作
请往下看，不然出门右转
客户端的编写
-
使用androidstudio 创建一个新的应用，这就是最简单的客户端。
- 后面增加新的功能
- 登录
- 注册
- 记住密码
- 自动登录
- 动画显示
- 好友添加
- 好友列表
- 日历显示
- Webview
- 天气显示
- 扫码功能
- 生成二维码功能
- 等
注册
- 先看布局文件,长这样
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical"
android:background="@color/beige"
xmlns:tools="http://schemas.android.com/tools" >
<ScrollView
android:id="@+id/login_form"
android:layout_width="match_parent"
android:layout_height="wrap_content" >
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical"
android:layout_marginTop="50dp" >
<ImageView
android:layout_width="100dp"
android:layout_height="100dp"
android:layout_marginLeft="130dp"
android:layout_marginRight="130dp"
android:layout_marginTop="10dp"
android:layout_marginBottom="20dp"
android:background="@drawable/ic_launcher"
android:gravity="center_horizontal"
android:saveEnabled="true">
</ImageView>
<EditText
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:textSize="25sp"
android:id="@+id/user_new"
android:hint="User-Email-Tel-Num"
android:textColorHint="@color/wheat"
android:textColor="@color/maroon"
android:layout_marginLeft="30dp"
android:layout_marginRight="30dp"
android:layout_marginTop="10dp"
android:layout_marginBottom="10dp"
android:maxLines="1"
android:singleLine="true"
android:background="@color/beige"
/>
<EditText
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:textSize="25sp"
android:id="@+id/pass_new"
android:hint="Password"
android:textColorHint="@color/wheat"
android:textColor="@color/maroon"
android:singleLine="true"
android:inputType="textPassword"
android:layout_marginLeft="30dp"
android:layout_marginRight="30dp"
android:layout_marginTop="10dp"
android:maxLines="1"
android:layout_marginBottom="10dp"
android:background="@color/beige"
/>
<EditText
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:textSize="25sp"
android:id="@+id/pass_again"
android:hint="Password"
android:textColorHint="@color/wheat"
android:textColor="@color/maroon"
android:singleLine="true"
android:inputType="textPassword"
android:layout_marginLeft="30dp"
android:layout_marginRight="30dp"
android:layout_marginTop="10dp"
android:maxLines="1"
android:layout_marginBottom="10dp"
android:background="@color/beige"
/>
<Button
android:id="@+id/button_register"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginLeft="50dp"
android:layout_marginRight="50dp"
android:layout_marginTop="50dp"
android:layout_marginBottom="20dp"
android:text="Register Now"
android:onClick="RegisterNow"
android:background="@drawable/shape"
android:textSize="25sp"
android:textColor="@color/wheat"
></Button>
</LinearLayout>
</ScrollView>
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="horizontal"
android:gravity="center_horizontal"
android:layout_marginBottom="10dp"
android:layout_marginTop="30dp"
>
<Button
android:id="@+id/button_back_new"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginLeft="10dp"
android:layout_marginRight="10dp"
android:onClick="Back"
android:background="@null"
android:layout_marginBottom="10dp"
android:text="BACK"
android:textColor="@color/white"
></Button>
</LinearLayout>
</LinearLayout>
注册代码
判断密码是否相同，判断用户是否存在
package com.example.app_test;
import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.text.Editable;
import android.text.TextWatcher;
import android.view.View;
import android.view.Window;
import android.widget.Button;
import android.widget.EditText;
import android.widget.Toast;
public class RegisterNow extends Activity{
private EditText user = null;
private EditText pass = null;
private EditText pass_again = null;
private Button button_register = null;
//private String username,password,passwordagain;
private String username;
private String user_city = "shanghai";
private String user_get,pass_get,pass_again_get,result;
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
requestWindowFeature(Window.FEATURE_NO_TITLE);
setContentView(R.layout.register);
user = (EditText )findViewById (R.id.user_new);
pass = (EditText)findViewById(R.id.pass_new);
pass_again = (EditText)findViewById(R.id.pass_again);
button_register = (Button)findViewById(R.id.button_register);
user.addTextChangedListener(Watchertext);
}
TextWatcher Watchertext = new TextWatcher() {
private CharSequence temp;
private int editStart;
private int editEnd;
@Override
public void beforeTextChanged(CharSequence s, int start, int count, int after) {
//user.setText(s);
}
@Override
public void onTextChanged(CharSequence s, int start, int before, int count) {
temp =s;
}
@Override
public void afterTextChanged(Editable s) {
editStart = user.getSelectionStart();
editEnd = user.getSelectionEnd();
if(!isLetterOrDigit(temp.toString())){
Toast.makeText(RegisterNow.this,"username is Letter or Digit or _ !",Toast.LENGTH_SHORT).show();
}
if(temp.length() > 10)
{
Toast.makeText(RegisterNow.this,"too long for user name !",Toast.LENGTH_SHORT).show();
s.delete(editStart-1,editEnd);
int tempSeleciton = editStart;
user.setSelection(tempSeleciton);
}
}
};
public static boolean isLetterOrDigit(String str) {
boolean isLetterOrDigit = false;//定义一个boolean值，用来表示是否包含字母或数字
for (int i = 0; i < str.length(); i++) {
if (Character.isLetterOrDigit(str.charAt(i))) { //用char包装类中的判断数字的方法判断每一个字符
isLetterOrDigit = true;
}
}
String regex = "^[a-zA-Z0-9]+$";
boolean isRight = isLetterOrDigit && str.matches(regex);
return isRight;
}
public void RegisterNow(View view){
user_get = user.getText().toString();
pass_get = pass.getText().toString();
pass_again_get = pass_again.getText().toString();
Bundle bundle = new Bundle();
bundle.putString("user_get", user_get);
bundle.putString("pass_get", pass_get);
bundle.putString("pass_again_get", pass_again_get);
Intent toregistersuccess = new Intent(RegisterNow.this,RegisterShow.class);
toregistersuccess.putExtras(bundle);
startActivity(toregistersuccess);
RegisterNow.this.finish();
}
public void Back(View view){
super.onBackPressed();
this.finish();
}
}