作业七（1）

<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"
                tools:context=".MainActivity" >

    <LinearLayout
            android:id="@+id/linearLayout1"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_marginTop="130dp"
            android:orientation="horizontal" >

        <TextView
                android:id="@+id/tv1"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:text="账号:"
                android:textSize="25sp" />

        <EditText
                android:id="@+id/et1"
                android:layout_width="match_parent"
                android:layout_height="40dp"/>
    </LinearLayout>


    <LinearLayout
            android:id="@+id/linearLayout2"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_marginTop="190dp"
            android:orientation="horizontal" >
        <TextView
                android:id="@+id/tv2"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:text="密码:"
                android:textSize="25sp" />
        <EditText
                android:id="@+id/et2"
                android:layout_width="match_parent"
                android:layout_height="40dp"/>
    </LinearLayout>


    <Button
            android:id="@+id/button"
            android:layout_width="200dp"
            android:layout_height="wrap_content"
            android:layout_alignParentBottom="true"
            android:layout_centerHorizontal="true"
            android:layout_marginBottom="56dp"
            android:onClick="onclick"
            android:text="登录" />



</RelativeLayout>

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
                android:layout_width="match_parent"
                android:layout_height="match_parent" >

    <LinearLayout
            android:id="@+id/linearLayout1"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_alignParentLeft="true"
            android:layout_alignParentTop="true"
            android:layout_marginTop="105dp"
            android:orientation="horizontal" >
        <TextView
                android:id="@+id/tv1"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:text="显示账号:"
                android:textSize="20sp" />

        <TextView
                android:id="@+id/tv2"
                android:layout_width="match_parent"
                android:layout_height="40dp" />

    </LinearLayout>

    <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_alignParentLeft="true"
            android:layout_below="@+id/linearLayout1"
            android:layout_marginTop="14dp"
            android:orientation="horizontal" >

        <TextView
                android:id="@+id/tv3"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:text="显示密码:"
                android:textSize="20sp" />

        <TextView
                android:id="@+id/tv4"
                android:layout_width="match_parent"
                android:layout_height="40dp" />

    </LinearLayout>

</RelativeLayout>

package com.example.myapplication9;
import android.app.Activity;
import android.content.Intent;
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.Toast;


 public class MainActivity extends Activity {
    private EditText et1;
    private EditText et2;
    private Button bt;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        bt=(Button)findViewById(R.id.button);
        et1=(EditText)findViewById(R.id.et1);
        et2=(EditText)findViewById(R.id.et2);
    }
    public void onclick(View v) {
        String ID="111111";
        String PassWord="123456";
        String s1=et1.getText().toString();
        String s2=et2.getText().toString();
        if (ID.equals(s1)&&PassWord.equals(s2)) {
            Toast.makeText(MainActivity.this, "登录成功", 1).show();
            Intent intent=new Intent(MainActivity.this,MainActivity2.class);
            intent.putExtra("zh",s1);
            intent.putExtra("mm",s2);
            startActivity(intent);
        }
        else {
            Toast.makeText(MainActivity.this, "登录失败", 1).show();
        }

    }
}

package com.example.myapplication9;
import android.app.Activity;
import android.content.Intent;
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 MainActivity2 extends Activity {
    private TextView tv1;
    private TextView tv2;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.layout);
        tv1 = (TextView) findViewById(R.id.tv2);
        tv2=(TextView) findViewById(R.id.tv4);
        Intent intent=getIntent();
        String ID=intent.getStringExtra("zh");
        String PassWord=intent.getStringExtra("mm");
        tv1.setText(ID);
        tv2.setText(PassWord);
    }


}