zoukankan html css js c++ java

AndroidStudio简单制作MKOPlayer音乐网站（封装成APP）小demo【日常作业练习】

AndroidStudio简单制作MKOPlayer音乐网站（封装成APP）小demo【日常作业练习】

　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　————安德风QQ1652102745

一、最终效果展示：

二、界面布局设计：

1、首页界面布局设计activity_main.xml源代码

 1 <?xml version="1.0" encoding="utf-8"?>
 2 <androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
 3     xmlns:app="http://schemas.android.com/apk/res-auto"
 4     xmlns:tools="http://schemas.android.com/tools"
 5     android:layout_width="match_parent"
 6     android:layout_height="match_parent"
 7     android:background="@drawable/dlandzc"
 8     tools:context=".MainActivity">
 9 
10     <ImageView
11         android:id="@+id/imageView"
12         android:layout_width="169dp"
13         android:layout_height="81dp"
14         android:layout_marginStart="16dp"
15         android:layout_marginLeft="16dp"
16         android:onClick="deluclick"
17         app:layout_constraintBottom_toBottomOf="parent"
18         app:layout_constraintStart_toStartOf="parent"
19         app:layout_constraintTop_toTopOf="parent"
20         app:layout_constraintVertical_bias="0.944"
21         app:srcCompat="@drawable/dl" />
22 
23     <ImageView
24         android:id="@+id/imageView2"
25         android:layout_width="194dp"
26         android:layout_height="86dp"
27         android:layout_marginStart="40dp"
28         android:layout_marginLeft="40dp"
29         android:onClick="zhucclick"
30         app:layout_constraintBottom_toBottomOf="parent"
31         app:layout_constraintStart_toEndOf="@+id/imageView"
32         app:layout_constraintTop_toTopOf="parent"
33         app:layout_constraintVertical_bias="0.944"
34         app:srcCompat="@drawable/zc" />
35 </androidx.constraintlayout.widget.ConstraintLayout>

2、注册界面布局设计activity_main2.xml源代码

  1 <?xml version="1.0" encoding="utf-8"?>
  2 <androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
  3     xmlns:app="http://schemas.android.com/apk/res-auto"
  4     xmlns:tools="http://schemas.android.com/tools"
  5     android:layout_width="match_parent"
  6     android:layout_height="match_parent"
  7     android:background="@drawable/zcjm"
  8     tools:context=".Main2Activity">
  9 
 10     <EditText
 11         android:id="@+id/name"
 12         android:layout_width="wrap_content"
 13         android:layout_height="wrap_content"
 14         android:layout_marginTop="308dp"
 15         android:ems="10"
 16         android:hint="请输入用户名"
 17         android:inputType="textPersonName"
 18 
 19         android:textColorHint="#C3A476"
 20         android:textColorLink="#FF9800"
 21         app:layout_constraintEnd_toEndOf="parent"
 22         app:layout_constraintHorizontal_bias="0.484"
 23         app:layout_constraintStart_toStartOf="parent"
 24         app:layout_constraintTop_toTopOf="parent" />
 25 
 26     <EditText
 27         android:id="@+id/editText2"
 28         android:layout_width="wrap_content"
 29         android:layout_height="wrap_content"
 30         android:layout_marginTop="12dp"
 31         android:ems="10"
 32         android:hint="请输入密码"
 33         android:inputType="textPassword"
 34         android:textColorHint="#C3A476"
 35         app:layout_constraintEnd_toEndOf="parent"
 36         app:layout_constraintStart_toStartOf="parent"
 37         app:layout_constraintTop_toBottomOf="@+id/name" />
 38 
 39     <RadioGroup
 40         android:id="@+id/radioGroup"
 41         android:layout_width="wrap_content"
 42         android:layout_height="wrap_content"
 43         android:layout_marginStart="72dp"
 44         android:layout_marginLeft="72dp"
 45         android:layout_marginTop="56dp"
 46         app:layout_constraintStart_toStartOf="parent"
 47         app:layout_constraintTop_toBottomOf="@+id/editText2">
 48 
 49         <RadioButton
 50             android:id="@+id/radioButton2"
 51             android:layout_width="match_parent"
 52             android:layout_height="wrap_content"
 53             android:text="男"
 54             android:textColor="#C3A476"
 55             android:textColorHint="#C3A476" />
 56 
 57         <RadioButton
 58             android:id="@+id/radioButton3"
 59             android:layout_width="match_parent"
 60             android:layout_height="wrap_content"
 61             android:text="女"
 62             android:textColor="#C3A476" />
 63     </RadioGroup>
 64 
 65     <TextView
 66         android:id="@+id/textView"
 67         android:layout_width="wrap_content"
 68         android:layout_height="wrap_content"
 69         android:layout_marginStart="72dp"
 70         android:layout_marginLeft="72dp"
 71         android:layout_marginTop="24dp"
 72         android:text="性别："
 73         android:textColor="#C3A476"
 74         app:layout_constraintStart_toStartOf="parent"
 75         app:layout_constraintTop_toBottomOf="@+id/editText2" />
 76 
 77     <TextView
 78         android:id="@+id/textView2"
 79         android:layout_width="wrap_content"
 80         android:layout_height="wrap_content"
 81         android:layout_marginStart="56dp"
 82         android:layout_marginLeft="56dp"
 83         android:layout_marginTop="16dp"
 84         android:text="兴趣爱好："
 85         android:textColor="#C3A476"
 86         app:layout_constraintStart_toStartOf="parent"
 87         app:layout_constraintTop_toBottomOf="@+id/radioGroup" />
 88 
 89     <CheckBox
 90         android:id="@+id/checkBox"
 91         android:layout_width="wrap_content"
 92         android:layout_height="wrap_content"
 93         android:layout_marginStart="72dp"
 94         android:layout_marginLeft="72dp"
 95         android:layout_marginTop="20dp"
 96         android:text="编程"
 97         android:textColor="#C3A476"
 98         app:layout_constraintStart_toStartOf="parent"
 99         app:layout_constraintTop_toBottomOf="@+id/textView2" />
100 
101     <CheckBox
102         android:id="@+id/checkBox2"
103         android:layout_width="wrap_content"
104         android:layout_height="wrap_content"
105         android:layout_marginStart="8dp"
106         android:layout_marginLeft="8dp"
107         android:layout_marginTop="176dp"
108         android:text="唱歌"
109         android:textColor="#C3A476"
110         app:layout_constraintStart_toEndOf="@+id/checkBox"
111         app:layout_constraintTop_toBottomOf="@+id/editText2" />
112 
113     <CheckBox
114         android:id="@+id/checkBox3"
115         android:layout_width="wrap_content"
116         android:layout_height="wrap_content"
117         android:layout_marginStart="8dp"
118         android:layout_marginLeft="8dp"
119         android:layout_marginTop="176dp"
120         android:text="跳舞"
121         android:textColor="#C3A476"
122         app:layout_constraintStart_toEndOf="@+id/checkBox2"
123         app:layout_constraintTop_toBottomOf="@+id/editText2" />
124 
125     <ImageView
126         android:id="@+id/zhuce1"
127         android:layout_width="235dp"
128         android:layout_height="62dp"
129         android:layout_marginTop="644dp"
130         android:onClick="zc1"
131         app:layout_constraintEnd_toEndOf="parent"
132         app:layout_constraintHorizontal_bias="0.42"
133         app:layout_constraintStart_toStartOf="parent"
134         app:layout_constraintTop_toTopOf="parent"
135         app:srcCompat="@drawable/zhuc" />
136 
137 </androidx.constraintlayout.widget.ConstraintLayout>

3、登录界面布局设计activity_main2.xml源代码

 1 <?xml version="1.0" encoding="utf-8"?>
 2 <androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
 3     xmlns:app="http://schemas.android.com/apk/res-auto"
 4     xmlns:tools="http://schemas.android.com/tools"
 5     android:layout_width="match_parent"
 6     android:layout_height="match_parent"
 7     android:background="@drawable/dljm"
 8     tools:context=".Main3Activity">
 9 
10     <EditText
11         android:id="@+id/et"
12         android:layout_width="wrap_content"
13         android:layout_height="wrap_content"
14         android:layout_marginTop="308dp"
15         android:ems="10"
16         android:hint="请输入用户名"
17         android:inputType="textPersonName"
18         android:textColorHint="#C3A476"
19         app:layout_constraintEnd_toEndOf="parent"
20         app:layout_constraintStart_toStartOf="parent"
21         app:layout_constraintTop_toTopOf="parent" />
22 
23     <EditText
24         android:id="@+id/editText3"
25         android:layout_width="wrap_content"
26         android:layout_height="wrap_content"
27         android:layout_marginTop="12dp"
28         android:ems="10"
29         android:hint="请输入密码"
30         android:inputType="textPassword"
31         android:textColorHint="#C3A476"
32         app:layout_constraintEnd_toEndOf="parent"
33         app:layout_constraintStart_toStartOf="parent"
34         app:layout_constraintTop_toBottomOf="@+id/et" />
35 
36     <ImageView
37         android:id="@+id/dlu2"
38         android:layout_width="wrap_content"
39         android:layout_height="wrap_content"
40         android:layout_marginTop="84dp"
41         android:onClick="dl"
42         app:layout_constraintEnd_toEndOf="parent"
43         app:layout_constraintHorizontal_bias="0.496"
44         app:layout_constraintStart_toStartOf="parent"
45         app:layout_constraintTop_toBottomOf="@+id/editText3"
46         app:srcCompat="@drawable/dlu2" />
47 
48     <TextView
49         android:id="@+id/textView3"
50         android:layout_width="wrap_content"
51         android:layout_height="wrap_content"
52         android:layout_marginTop="20dp"
53         android:onClick="wjmm"
54         android:text="忘记密码"
55         android:textColor="#C3A476"
56         android:textSize="24sp"
57         app:layout_constraintEnd_toEndOf="parent"
58         app:layout_constraintHorizontal_bias="0.873"
59         app:layout_constraintStart_toStartOf="parent"
60         app:layout_constraintTop_toBottomOf="@+id/editText3" />
61 </androidx.constraintlayout.widget.ConstraintLayout>

三、手机上方显示状态栏颜色更改R/values/color.xml

1 <?xml version="1.0" encoding="utf-8"?>
2 <resources>
3     <color name="colorPrimary">#FFC444</color>
4     <color name="colorPrimaryDark">#FFC444</color>
5     <color name="colorAccent">#FFC444</color>
6 </resources>

四、模块标题栏中标题更改R/values/String.xml

1 <resources> 2 <string name="app_name">MKOPlayer</string> 3 </resources>

五、功能实现

1、首页功能实现MainActivity.java

 1 package com.example.adf;
 2 
 3 import androidx.appcompat.app.AppCompatActivity;
 4 
 5 import android.content.Intent;
 6 import android.os.Bundle;
 7 import android.view.View;
 8 
 9 public class MainActivity extends AppCompatActivity {
10 
11     @Override
12     protected void onCreate(Bundle savedInstanceState) {
13         super.onCreate(savedInstanceState);
14         setContentView(R.layout.activity_main);
15     }
16 
17     public void deluclick(View view) {
18         Intent intent=new Intent(MainActivity.this,Main3Activity.class);
19         startActivity(intent);
20 
21     }
22 
23     public void zhucclick(View view) {
24         Intent intent=new Intent(MainActivity.this,Main2Activity.class);
25         startActivity(intent);
26     }
27 }

2、注册界面功能实现Main2Activity.java

 1 package com.example.adf;
 2 
 3 import androidx.appcompat.app.AppCompatActivity;
 4 
 5 import android.content.Intent;
 6 import android.os.Bundle;
 7 import android.view.View;
 8 import android.widget.EditText;
 9 import android.widget.ImageView;
10 import android.widget.Toast;
11 
12 public class Main2Activity extends AppCompatActivity {
13 EditText name,pwd;
14 ImageView zhuce1;
15 
16     @Override
17     protected void onCreate(Bundle savedInstanceState) {
18         super.onCreate(savedInstanceState);
19         setContentView(R.layout.activity_main2);
20 
21         name=findViewById(R.id.name);
22         pwd=findViewById(R.id.editText2);
23         zhuce1=findViewById(R.id.zhuce1);
24 
25 
26     }
27 
28     public void zc1(View view) {
29         String username=name.getText().toString();
30         String password=pwd.getText().toString();
31         if (username.equals("")||password.equals("")){
32             Toast.makeText(this, "抱歉，注册失败，用户名或者密码不能为空；请补充完整", Toast.LENGTH_SHORT).show();
33         }
34         else{
35 
36             Intent intent=new Intent(Main2Activity.this,Main3Activity.class);
37             intent.putExtra("username",username);
38             intent.putExtra("password",password);
39             startActivity(intent);
40 
41         }
42     }
43 }

3、登录界面功能实现Main3Activity.java

 1 package com.example.adf;
 2 
 3 import androidx.appcompat.app.AppCompatActivity;
 4 
 5 import android.content.Intent;
 6 import android.net.Uri;
 7 import android.os.Bundle;
 8 import android.view.View;
 9 import android.widget.EditText;
10 import android.widget.ImageView;
11 import android.widget.TextView;
12 import android.widget.Toast;
13 
14 public class Main3Activity extends AppCompatActivity {
15 EditText et1,et2;
16 ImageView dlu2;
17     @Override
18     protected void onCreate(Bundle savedInstanceState) {
19         super.onCreate(savedInstanceState);
20         setContentView(R.layout.activity_main3);
21 
22 
23         et1=findViewById(R.id.et);
24         et2=findViewById(R.id.editText3);
25         dlu2=findViewById(R.id.dlu2);
26 
27 
28     }
29 
30     public void dl(View view) {
31         String  mingzi=et1.getText().toString();
32         String  mima=et2.getText().toString();
33         Intent intent=getIntent();
34         String uer=intent.getStringExtra("username");
35         String pwd =intent.getStringExtra("password");
36         if (mingzi.equals(uer)&&mima.equals(pwd)){
37 //            Toast.makeText(this, "恭喜您 ，登录成功", Toast.LENGTH_SHORT).show();
38 
39             Intent yitu=new Intent();
40             yitu.setAction(Intent.ACTION_VIEW);
41             yitu.setData(Uri.parse("http://www.quanbk.cn/yy"));
42             startActivity(yitu);
43 
44 
45 
46         }
47         else{
48             Toast.makeText(this, "抱歉！登录失败，请重新输入用户名或者密码", Toast.LENGTH_SHORT).show();
49         }
50 
51 
52     }
53 
54     public void wjmm(View view) {
55         Intent intent=new Intent(Main3Activity.this,Main2Activity.class);
56         startActivity(intent);
57     }
58 }

六、代码打包

链接：https://eyun.baidu.com/s/3o9Mtk2Q 密码：uihP

七、总结：

本次练习知识点回顾

1、如何通过一个activity跳转到另一个activity中（有两种方法：①显示方法②隐式方法）

2、从一个activity传送到另一个数据传送

3、Toast弹出框用法

我是安德风，以上就是本次练习所用到的核心知识点概括，感谢大家的观看，喜欢我的小伙伴欢迎关注与支持。有问题欢迎在下方留言；看到后一一答复。

查看全文

相关阅读:
LeetCode 326. Power of Three
LeetCode 324. Wiggle Sort II
LeetCode 322. Coin Change
LeetCode 321. Create Maximum Number
LeetCode 319. Bulb Switcher
LeetCode 318. Maximum Product of Word Lengths
LeetCode 310. Minimum Height Trees (DFS)
个人站点大开发！--起始篇
 LeetCode 313. Super Ugly Number
LeetCode 309. Best Time to Buy and Sell Stock with Cooldown (DP)

原文地址：https://www.cnblogs.com/adf520/p/12610773.html