作业三

<Button
        android:id="@+id/btn_one"
        android:layout_width="300dp"
        android:layout_height="50dp"
        android:layout_alignParentBottom="true"
        android:layout_alignParentLeft="true"
        android:layout_marginBottom="40dp"
        android:layout_marginLeft="20dp"
        android:text="登陆"
        android:gravity="center"
        android:background="#8DEEEE"
        android:textColor="#FFFFFF"
        android:textSize="25sp"
        android:textStyle="italic"
        android:onClick="CCC" />
      <TextView
        android:id="@+id/btn1"
        android:layout_width="80dp"
        android:layout_height="50dp"
        android:layout_alignParentTop="true"
        android:layout_alignParentLeft="true"
        android:layout_marginLeft="25dp"
        android:layout_marginTop="180dp"
        android:gravity="center"
        android:text="账号 "
        android:textColor="#080808"
        android:textSize="25sp"
        android:textStyle="italic" 
    
        />
    
      <TextView
      android:layout_height="50dp"
      android:layout_width="80dp"
      android:layout_alignParentTop="true"
      android:layout_alignParentLeft="true"  
      android:layout_marginTop="240dp"
      android:layout_marginLeft="25dp"
      android:textStyle="italic"
      android:gravity="center" 
      android:textSize="25sp"
      android:textColor="#080808"  
      android:text="密码 "
      android:id="@+id/btn2"
      android:layout_toRightOf="@id/btn1"/>
   <EditText
          android:id="@+id/mima"
       android:layout_width="200dp"
       android:layout_height="50dp"
       android:hint="请输入密码"
       android:textColor="#080808"
       android:onClick="click"
       android:layout_alignParentTop="true"
       android:layout_alignParentLeft="true" 
       android:layout_marginTop="240dp"
       android:layout_marginLeft="100dp" 
       android:inputType="textPassword"
       />
  <EditText
        android:id="@+id/qq"
       android:layout_width="200dp"
       android:layout_height="50dp"
       android:hint="请输入账号"
       android:textColor="#080808"
       android:layout_alignParentTop="true"
       android:layout_alignParentLeft="true"
       android:layout_marginTop="180dp" 
       android:layout_marginLeft="100dp"
   
       
/>
   
  

    </RelativeLayout>














package com.example.wx;

import android.app.Activity;


import android.view.View;
import android.os.Bundle;
import android.text.TextUtils;
import android.view.Menu;
import android.view.MenuItem;
import android.widget.Toast;
import android.widget.EditText;
import android.content.SharedPreferences;



public class MainActivity extends Activity {
private EditText mEd_qqnum;
private EditText mEd_pwd;
private SharedPreferences sp;
	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.activity_main);
	}

	@Override
	public boolean onCreateOptionsMenu(Menu menu) {
		// Inflate the menu; this adds items to the action bar if it is present.
		getMenuInflater().inflate(R.menu.main, menu);
		return true;
	}

	@Override
	public boolean onOptionsItemSelected(MenuItem item) {
		// Handle action bar item clicks here. The action bar will
		// automatically handle clicks on the Home/Up button, so long
		// as you specify a parent activity in AndroidManifest.xml.
		int id = item.getItemId();
		if (id == R.id.action_settings) {
			return true;
		}
		return super.onOptionsItemSelected(item);
	}
		
		
	public void CCC(View view) {
		String qq=mEd_qqnum.getText().toString().trim();
		String pwd=mEd_pwd.getText().toString().trim();
			
			
			
	if("123456".equals(qq)&&"123456".equals(pwd)) 		
	Toast.makeText(MainActivity.this,"登陆成功",Toast.LENGTH_SHORT).show();
	else
	Toast.makeText(MainActivity.this,"登陆失败",Toast.LENGTH_SHORT).show();
		return;	
			
				
				
			}
}