安卓第二次实验课记录

package com.example.gaopeng_10_15_01;

import android.app.Activity;
import android.content.DialogInterface.OnClickListener;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TextView;


public class MainActivity extends Activity {
	private Button bt;
	private TextView tv1;
	private EditText ed1,ed2;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        bt=(Button) findViewById(R.id.bt1);
        tv1=(TextView) findViewById(R.id.tv1);
        ed1=(EditText) findViewById(R.id.edt1);
        ed2=(EditText) findViewById(R.id.edt2);
        
        bt.setOnClickListener(new ButtononClick());
    }
    
    class ButtononClick implements View.OnClickListener{

		@Override
		public void onClick(View v) {
			// TODO Auto-generated method stub
			String user=ed1.getText().toString();
			String password=ed2.getText().toString();
			if(user.equals("qwe")&&password.equals("123"))
			{
				tv1.setText("welcome");
			}
			else if(user.equals("qwe"))
				tv1.setText("password is wrong");
			else 
				tv1.setText("not found this account");
					
			
		}
    	
    }
    
}









<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.gaopeng_10
.MainActivity" >


    <LinearLayout
       
        android:layout_width="fill_parent"
        android:layout_height="fill_parent"
        android:orientation="vertical" >
  
        <LinearLayout android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:orientation="horizontal">
        <TextView
            android:id="@+id/t1"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="用户名" />
        
    <EditText 
        android:id="@+id/edt1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:ems="10"
        >
        </EditText>>
        </LinearLayout>
        
        
        <LinearLayout android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:orientation="horizontal">
        <TextView
          android:id="@+id/t2"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="密码" />
    <EditText
        android:id="@+id/edt2"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:ems="10"
      android:inputType="textPassword" 
        ></EditText>>
        </LinearLayout>
      


        
    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:orientation="horizontal"
        
        >
        <Button
             android:id="@+id/bt1"
          android:layout_width="wrap_content"
        android:layout_height="wrap_content"
             android:text="登录"
        ></Button>
        <Button
             android:id="@+id/bt2"
          android:layout_width="wrap_content"
        android:layout_height="wrap_content"
             android:text="取消"
        ></Button>	
    </LinearLayout>
    
    
     <LinearLayout
         android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:orientation="horizontal"
        >
         <TextView
         android:id="@+id/tv1"
          android:layout_width="wrap_content"
        android:layout_height="wrap_content"
             android:text=" "
        ></TextView>
         
         </LinearLayout>
    
    
</LinearLayout>
</RelativeLayout>






package com.example.gaopeng_10_15_02;

import android.app.Activity;
import android.os.Bundle;
import android.view.*;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TextView;


public class MainActivity extends Activity {
	private Button bt;
	private TextView tv1;
	private EditText ed1,ed2;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        bt=(Button) findViewById(R.id.bt1);
        tv1=(TextView) findViewById(R.id.tv1);
        ed1=(EditText) findViewById(R.id.edt1);
        ed2=(EditText) findViewById(R.id.edt2);
        
        bt.setOnClickListener(new OnClickListener() {
			
			@Override
			public void onClick(View v) {
				// TODO Auto-generated method stub
				String user=ed1.getText().toString();
				String password=ed2.getText().toString();
				if(user.equals("qwe")&&password.equals("123"))
				{
					tv1.setText("welcome");
				}
				else if(user.equals("qwe"))
					tv1.setText("password is wrong");
				else 
					tv1.setText("not found this account");
			}
		});
    }

   
}




package com.example.gaopeng_10_15_02;

import android.app.Activity;
import android.os.Bundle;
import android.view.*;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TextView;


public class MainActivity extends Activity implements View.OnClickListener{
	private Button bt;
	private TextView tv1;
	private EditText ed1,ed2;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        bt=(Button) findViewById(R.id.bt1);
        tv1=(TextView) findViewById(R.id.tv1);
        ed1=(EditText) findViewById(R.id.edt1);
        ed2=(EditText) findViewById(R.id.edt2);
        
        bt.setOnClickListener(this);
        
    }
	@Override
	public void onClick(View v) {
		// TODO Auto-generated method stub
		String user=ed1.getText().toString();
		String password=ed2.getText().toString();
		if(user.equals("qwe")&&password.equals("123"))
		{
			tv1.setText("welcome");
		}
		else if(user.equals("qwe"))
			tv1.setText("password is wrong");
		else 
			tv1.setText("not found this account");
	}

   
}



<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.gaopeng_10_15_02.MainActivity" >


    <LinearLayout
       
        android:layout_width="fill_parent"
        android:layout_height="fill_parent"
        android:orientation="vertical" >
  
        <LinearLayout android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:orientation="horizontal">
        <TextView
            android:id="@+id/t1"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="用户名" />
        
    <EditText 
        android:id="@+id/edt1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:ems="10"
        >
        </EditText>>
        </LinearLayout>
        
        
        <LinearLayout android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:orientation="horizontal">
        <TextView
          android:id="@+id/t2"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="密码" />
    <EditText
        android:id="@+id/edt2"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:ems="10"
      android:inputType="textPassword" 
        ></EditText>>
        </LinearLayout>
      


        
    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:orientation="horizontal"
        
        >
        <Button
             android:id="@+id/bt1"
          android:layout_width="wrap_content"
        android:layout_height="wrap_content"
             android:text="登录"
        ></Button>
        <Button
             android:id="@+id/bt2"
          android:layout_width="wrap_content"
        android:layout_height="wrap_content"
             android:text="取消"
        ></Button>	
    </LinearLayout>
    
    
     <LinearLayout
         android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:orientation="horizontal"
        >
         <TextView
         android:id="@+id/tv1"
          android:layout_width="wrap_content"
        android:layout_height="wrap_content"
             android:text=" "
        ></TextView>
         
         </LinearLayout>
    
    
</LinearLayout>
</RelativeLayout>





<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.gaopeng_10_15_02.MainActivity" >


    <LinearLayout
       
        android:layout_width="fill_parent"
        android:layout_height="fill_parent"
        android:orientation="vertical" >
  
        <LinearLayout android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:orientation="horizontal">
        <TextView
            android:id="@+id/t1"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="用户名" />
        
    <EditText 
        android:id="@+id/edt1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:ems="10"
        >
        </EditText>>
        </LinearLayout>
        
        
        <LinearLayout android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:orientation="horizontal">
        <TextView
          android:id="@+id/t2"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="密码" />
    <EditText
        android:id="@+id/edt2"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:ems="10"
      android:inputType="textPassword" 
        ></EditText>>
        </LinearLayout>
      


        
    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:orientation="horizontal"
        
        >
        <Button
             android:id="@+id/bt1"
          android:layout_width="wrap_content"
        android:layout_height="wrap_content"
             android:text="登录"
        ></Button>
        <Button
             android:id="@+id/bt2"
          android:layout_width="wrap_content"
        android:layout_height="wrap_content"
             android:text="取消"
        ></Button>	
    </LinearLayout>
    
    
     <LinearLayout
         android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:orientation="horizontal"
        >
         <TextView
         android:id="@+id/tv1"
          android:layout_width="wrap_content"
        android:layout_height="wrap_content"
             android:text=" "
        ></TextView>
         
         </LinearLayout>
    
    
</LinearLayout>
</RelativeLayout>








package com.example.gaopeng_10_15_02;

import android.app.Activity;
import android.os.Bundle;
import android.view.*;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TextView;


public class MainActivity extends Activity {
	private Button bt;
	private TextView tv1;
	private EditText ed1,ed2;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        bt=(Button) findViewById(R.id.bt1);
        tv1=(TextView) findViewById(R.id.tv1);
        ed1=(EditText) findViewById(R.id.edt1);
        ed2=(EditText) findViewById(R.id.edt2);
        
       
        
    }
    public void Clickit(View view)
    {
    	String user=ed1.getText().toString();
		String password=ed2.getText().toString();
		if(user.equals("qwe")&&password.equals("123"))
		{
			tv1.setText("welcome");
		}
		else if(user.equals("qwe"))
			tv1.setText("password is wrong");
		else 
			tv1.setText("not found this account");
    }
}


<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.gaopeng_10_15_02.MainActivity" >


    <LinearLayout
       
        android:layout_width="fill_parent"
        android:layout_height="fill_parent"
        android:orientation="vertical" >
  
        <LinearLayout android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:orientation="horizontal">
        <TextView
            android:id="@+id/t1"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="用户名" />
        
    <EditText 
        android:id="@+id/edt1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:ems="10"
        >
        </EditText>>
        </LinearLayout>
        
        
        <LinearLayout android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:orientation="horizontal">
        <TextView
          android:id="@+id/t2"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="密码" />
    <EditText
        android:id="@+id/edt2"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:ems="10"
      android:inputType="textPassword" 
        ></EditText>>
        </LinearLayout>
      


        
    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:orientation="horizontal"
        
        >
        <Button
             android:id="@+id/bt1"
          android:layout_width="wrap_content"
        android:layout_height="wrap_content"
             android:text="登录"
             android:onClick="Clickit"
        ></Button>
        <Button
             android:id="@+id/bt2"
          android:layout_width="wrap_content"
        android:layout_height="wrap_content"
             android:text="取消"
        ></Button>	
    </LinearLayout>
    
    
     <LinearLayout
         android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:orientation="horizontal"
        >
         <TextView
         android:id="@+id/tv1"
          android:layout_width="wrap_content"
        android:layout_height="wrap_content"
             android:text=" "
        ></TextView>
         
         </LinearLayout>
    
    
</LinearLayout>
</RelativeLayout>







三:


package com.example.gaopeng_10_15_02;

import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.view.*;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TextView;


public class MainActivity extends Activity {
	private Button bt;
	private TextView tv1;
	private EditText ed1,ed2;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        bt=(Button) findViewById(R.id.bt1);
        tv1=(TextView) findViewById(R.id.tv1);
        ed1=(EditText) findViewById(R.id.edt1);
        ed2=(EditText) findViewById(R.id.edt2);
        
       
        
    }
    public void Clickit(View view)
    {
    	String user=ed1.getText().toString();
		String password=ed2.getText().toString();
		if(user.equals("qwe")&&password.equals("123"))
		{
			Intent myintent=new Intent();
			myintent.setClass(MainActivity.this, SecondActivity.class);
			startActivity(myintent);
			
		}
		else if(user.equals("qwe"))
			tv1.setText("password is wrong");
		else 
			tv1.setText("not found this account");
    }
}


   
package com.example.gaopeng_10_15_02;

import android.app.Activity;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuItem;

public class SecondActivity extends Activity {

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

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



<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.gaopeng_10_15_02.MainActivity" >


    <LinearLayout
       
        android:layout_width="fill_parent"
        android:layout_height="fill_parent"
        android:orientation="vertical" >
  
        <LinearLayout android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:orientation="horizontal">
        <TextView
            android:id="@+id/t1"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="用户名" />
        
    <EditText 
        android:id="@+id/edt1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:ems="10"
        >
        </EditText>>
        </LinearLayout>
        
        
        <LinearLayout android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:orientation="horizontal">
        <TextView
          android:id="@+id/t2"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="密码" />
    <EditText
        android:id="@+id/edt2"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:ems="10"
      android:inputType="textPassword" 
        ></EditText>>
        </LinearLayout>
      


        
    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:orientation="horizontal"
        
        >
        <Button
             android:id="@+id/bt1"
          android:layout_width="wrap_content"
        android:layout_height="wrap_content"
             android:text="登录"
             android:onClick="Clickit"
        ></Button>
        <Button
             android:id="@+id/bt2"
          android:layout_width="wrap_content"
        android:layout_height="wrap_content"
             android:text="取消"
        ></Button>	
    </LinearLayout>
    
    
     <LinearLayout
         android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:orientation="horizontal"
        >
         <TextView
         android:id="@+id/tv1"
          android:layout_width="wrap_content"
        android:layout_height="wrap_content"
             android:text=" "
        ></TextView>
         
         </LinearLayout>
    
    
</LinearLayout>
</RelativeLayout>


<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.gaopeng_10_15_02.SecondActivity" >

    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="登陆成功" />

</RelativeLayout>












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