Android程序第1次作业

package com.example.myapplication;

import android.os.Bundle;

import androidx.appcompat.app.AppCompatActivity;

public class GridActivity extends AppCompatActivity {
        @Override
        protected void onCreate(Bundle savedInstanceState) {
            super.onCreate(savedInstanceState);
            setContentView(R.layout.activity_grid);
        }

}

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

    <GridLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:columnCount="3"
        android:rowCount="3">
        <TextView android:text="1"
            android:layout_rowWeight="1"
            android:layout_columnWeight="1"
            android:background="#00a2e8"></TextView>


        <TextView android:text="1"
            android:layout_rowWeight="1"
            android:layout_columnWeight="1"
            android:background="#3f48cc"></TextView>

        <TextView android:text="1"
            android:layout_rowWeight="1"
            android:layout_columnWeight="1"
            android:background="#a349a4"></TextView>

        <TextView android:text="1"
            android:layout_rowWeight="1"
            android:layout_columnWeight="1"
            android:background="#99d9ea"></TextView>

        <TextView android:text="1"
            android:layout_rowWeight="1"
            android:layout_columnWeight="1"
            android:background="#7092be"></TextView>

        <TextView android:text="1"
            android:layout_rowWeight="1"
            android:layout_columnWeight="1"
            android:background="#c8bfe7"></TextView>

        <TextView android:text="1"
            android:layout_rowWeight="1"
            android:layout_columnWeight="1"
            android:background="#00a2e8"></TextView>

        <TextView android:text="1"
            android:layout_rowWeight="1"
            android:layout_columnWeight="1"
            android:background="#3f48cc"></TextView>

        <TextView android:text="1"
            android:layout_rowWeight="1"
            android:layout_columnWeight="1"
            android:background="#a349a4"></TextView>

    </GridLayout>
</RelativeLayout>

package com.example.myapplication;

import android.os.Bundle;

import androidx.appcompat.app.AppCompatActivity;

public class LoginActivity extends AppCompatActivity {
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_login);
    }

}

<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context=".LoginActivity">

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:orientation="vertical">

        <TextView
            android:layout_width="match_parent"
            android:layout_height="70dp"></TextView>

        <ImageView
            android:layout_width="232dp"
            android:layout_height="232dp"
            android:src="@mipmap/card"
            android:layout_gravity="center"></ImageView>


        <GridLayout
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_gravity="center">
            <TextView
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:text="用户"
                android:textSize="61dp">
            </TextView>
            <EditText
                android:layout_width="241dp"
                android:layout_height="wrap_content"
                android:textSize="52dp">
            </EditText>
        </GridLayout>
        <GridLayout
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_gravity="center">
            <TextView
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:text="密码"
                android:textSize="61dp">
            </TextView>
            <EditText
                android:layout_width="241dp"
                android:layout_height="wrap_content"
                android:password="true"
                android:textSize="52dp">
            </EditText>
        </GridLayout>

    </LinearLayout>
</androidx.constraintlayout.widget.ConstraintLayout>