android开发小程序one

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android开发小程序one

要求

有一个界面，里面有组员名字。点击组员名字，调到另一个组员信息界面。

准备

1、android stdio开发工具
2、java语法。
过程

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1、创建一个work1项目
2、编辑activity_main.xml(在layout目录下)
3、创建组员.xml(在layout目录下)
4、创建组员acitiviy
5、AndroidManifest中申明acitivy
6、MainActivity中调用

最后目录结构图:

开始

创建work1项目，编辑activity_main.xml

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<Button
    android:id="@+id/zlw"
    android:layout_width="102dp"
    android:layout_height="45dp"
    android:layout_marginBottom="400dp"
    android:layout_marginEnd="8dp"
    android:layout_marginLeft="8dp"
    android:layout_marginRight="8dp"
    android:layout_marginStart="8dp"
    android:text="张力维"
    app:layout_constraintBottom_toBottomOf="parent"
    app:layout_constraintEnd_toEndOf="parent"
    app:layout_constraintHorizontal_bias="0.458"
    app:layout_constraintStart_toStartOf="parent"
    tools:ignore="MissingConstraints" />
<Button
    android:id="@+id/cyx"
    android:layout_width="102dp"
    android:layout_height="45dp"
    android:layout_marginBottom="350dp"
    android:layout_marginEnd="8dp"
    android:layout_marginLeft="8dp"
    android:layout_marginRight="8dp"
    android:layout_marginStart="8dp"
    android:text="cyx"
    app:layout_constraintBottom_toBottomOf="parent"
    app:layout_constraintEnd_toEndOf="parent"
    app:layout_constraintHorizontal_bias="0.458"
    app:layout_constraintStart_toStartOf="parent"
    tools:ignore="MissingConstraints" />
<Button
    android:id="@+id/ms"
    android:layout_width="102dp"
    android:layout_height="45dp"
    android:layout_marginBottom="300dp"
    android:layout_marginEnd="8dp"
    android:layout_marginLeft="8dp"
    android:layout_marginRight="8dp"
    android:layout_marginStart="8dp"
    android:text="ms"
    app:layout_constraintBottom_toBottomOf="parent"
    app:layout_constraintEnd_toEndOf="parent"
    app:layout_constraintHorizontal_bias="0.458"
    app:layout_constraintStart_toStartOf="parent"
    tools:ignore="MissingConstraints" />
<Button
    android:id="@+id/cxw"
    android:layout_width="102dp"
    android:layout_height="45dp"
    android:layout_marginBottom="250dp"
    android:layout_marginEnd="8dp"
    android:layout_marginLeft="8dp"
    android:layout_marginRight="8dp"
    android:layout_marginStart="8dp"
    android:text="cxw"
    app:layout_constraintBottom_toBottomOf="parent"
    app:layout_constraintEnd_toEndOf="parent"
    app:layout_constraintHorizontal_bias="0.458"
    app:layout_constraintStart_toStartOf="parent"
    tools:ignore="MissingConstraints" />
<TextView
    android:id="@+id/textView"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:typeface="monospace"
    android:text="@string/introduce" />

创建组员

添加背景图片在res->drawable
bg.jpg,cxw.jpg,cyx.jpg,zlw.jpg
创建组员.xml(layout–>右键–>New–>layout resource file–>cxw)

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<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.ConstraintLayout
    xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:background="@drawable/cxw">  
    <Button
        android:id="@+id/back"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="back"
        />
</android.support.constraint.ConstraintLayout>

创建组员activity,这里继续Activity类

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package com.zjgsu.work1;
import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
//继承 acyiviy
public class cxw  extends Activity {
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.cxw);  //添加xml
        Button back = findViewById(R.id.back);
        back.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                /* 消除此activity */
                finish();
            }
        });
    }
}

类似创建其三个组员。

声明组员activity

AndroidManifest中申明acitivy

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<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.zjgsu.work1">
    <application
        android:allowBackup="true"
        android:icon="@mipmap/ic_launcher"
        android:label="@string/app_name"
        android:roundIcon="@mipmap/ic_launcher_round"
        android:supportsRtl="true"
        android:theme="@style/AppTheme">
        <activity android:name=".MainActivity">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />
                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
        <!--申明activity-->
        <activity android:name="zlw"></activity>
        <activity android:name="ms"></activity>
        <activity android:name="cyx"></activity>
        <activity android:name="cxw"></activity>
    </application>
</manifest>

MainActivity中调用

MainActivity函数

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package com.zjgsu.work1;
import android.content.Intent;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
public class MainActivity extends AppCompatActivity {
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        final Button zlw = (Button) findViewById(R.id.zlw);
        final Button cyx = (Button) findViewById(R.id.cyx);
        final Button ms = (Button) findViewById(R.id.ms);
        final Button cxw = (Button) findViewById(R.id.cxw);
        zlw.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                // 切换界面,需要在AndroidManifest.xml中申明activity  --zlw
                Intent i = new Intent(MainActivity.this , zlw.class);
                startActivity(i);
            }
        });
        cyx.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                Intent i = new Intent(MainActivity.this , cyx.class);
                startActivity(i);
            }
        });
        ms.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                Intent i = new Intent(MainActivity.this , ms.class);
                startActivity(i);
            }
        });
        cxw.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                Intent i = new Intent(MainActivity.this , cxw.class);
                startActivity(i);
            }
        });
    }
}

最后附加string.xml

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<resources>
    <string name="app_name">Skr</string>
    <string name="introduce">Welcome to Skr team. here are some member\'s information</string>
</resources>

Donate
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