3次作业

无理 2019/9/9 16:35:01
package com.example.qq;

import android.support.v7.app.ActionBarActivity;
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;
import android.widget.Toast;

public class MainActivity extends ActionBarActivity {

    @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;
    }
    public void tanchu(View view){
        Button button1=(Button)findViewById(R.id.button1);
        EditText textView1=(EditText)findViewById(R.id.textView1);
        EditText textView2=(EditText)findViewById(R.id.textView2);
        TextView textView3=(TextView)findViewById(R.id.textView3);
        String text1=textView1.getText().toString();
        String text2=textView2.getText().toString();
        if(text1.equals("123456")&&text2.equals("123456")) {
                Toast.makeText(MainActivity.this,"登录成功",0).show();
            }else {
                Toast.makeText(MainActivity.this,"登录失败",0).show();
            
                }
        
        
    }

    @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:background="#E0FFFF"
    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.qq.MainActivity" >

     <EditText
         android:id="@+id/textView2"
         android:layout_width="250dp"
         android:layout_height="30dp"
         android:layout_alignLeft="@+id/textView1"
         android:layout_alignParentTop="true"
         android:layout_marginTop="180dp"
         android:background="#ffffff"
         android:ems="9"
         android:hint="密码:" >

         <requestFocus />
     </EditText>

     <Button
         android:id="@+id/button1"
         android:layout_width="130dp"
         android:layout_height="40dp"
         android:layout_below="@+id/textView1"
         android:layout_centerHorizontal="true"
         android:layout_marginTop="74dp"
         android:background="#00BFFF"
         android:onClick="tanchu"
         android:text="登录" />

     <EditText
         android:id="@+id/textView1"
         android:layout_width="250dp"
         android:layout_height="30dp"
         android:layout_alignBottom="@+id/textView2"
         android:layout_centerHorizontal="true"
         android:layout_marginBottom="68dp"
         android:background="#ffffff"
         android:ems="9"
         android:hint="账号:" />

     <ImageView
         android:id="@+id/imageView1"
         android:layout_width="50dp"
         android:layout_height="50dp"
         android:layout_above="@+id/textView1"
         android:layout_centerHorizontal="true"
         android:layout_marginBottom="32dp"
         android:src="@drawable/qq" />

     <TextView
         android:id="@+id/textView3"
         android:layout_width="130dp"
         android:layout_height="40dp"
         android:layout_alignLeft="@+id/button1"
         android:layout_below="@+id/button1"
         android:layout_marginTop="35dp"
         android:text="" />

</RelativeLayout>