ESUCC的博客

1.layout 文件  content_main.xml   xml version="1.0" encoding="utf-8"?>LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:tools="http://schemas.android.com/tools"

1.activity_main.xml 布局文件    xml version="1.0" encoding="utf-8"?>LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:tools="http://schemas.android.com/tools

1. ActivityCollector.class 创建一类用于管理所有的活动public class ActivityCollector { public static List activities = new ArrayList<>(); public static void addActivity(Activity activity) {

1.创建类：MyDatabaseHelper.class/** * Created by Administrator on 2017/6/15. */public class MyDatabaseHelper extends SQLiteOpenHelper { public static final String CREATE_BOOK= "create table B

1.Activity_main.xml  xml version="1.0" encoding="utf-8"?>LinearLayout android:id="@+id/activity_main" xmlns:android="http://schemas.android.com/apk/res/android" xmlns:tools="http://sc

1.activity_main.xml  xml version="1.0" encoding="utf-8"?>LinearLayout android:id="@+id/activity_main" xmlns:android="http://schemas.android.com/apk/res/android" xmlns:tools="http://sc

1.activity_main.xml   xml version="1.0" encoding="utf-8"?>LinearLayout android:id="@+id/activity_main" xmlns:android="http://schemas.android.com/apk/res/android" xmlns:tools="http://s

1.activity_main.xml 布局文件   xml version="1.0" encoding="utf-8"?>LinearLayout android:id="@+id/activity_main" xmlns:android="http://schemas.android.com/apk/res/android" xmlns:tools="htt

1.activity_main.xml  xml version="1.0" encoding="utf-8"?>LinearLayout android:id="@+id/activity_main" xmlns:android="http://schemas.android.com/apk/res/android" xmlns:tools="http://sc

1.activity_main.xml 布局文件   xml version="1.0" encoding="utf-8"?>LinearLayout android:id="@+id/activity_main" xmlns:android="http://schemas.android.com/apk/res/android" xmlns:tools="htt

1.activity_main.xml 布局文件  xml version="1.0" encoding="utf-8"?>LinearLayout android:id="@+id/activity_main" xmlns:android="http://schemas.android.com/apk/res/android" xmlns:tools="http

1.被调用类：NotificationActivity.class  public class NotificationActivity extends AppCompatActivity { @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(save

1.MainActivity.java   package com.sh.appbooklistdetail;import android.app.Activity;import android.os.Bundle;/*(1)加载activity要显示的布局文件(two panes) (2)实现Callbacks接口的onItemSelected(Intege

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1.MainActivity.javapublic class MainActivity extends AppCompatActivity { final String FILE_NAME = "crazyit.bin"; @Override protected void onCreate(Bundle savedInstanceState) {

1.例如，下面是一个启动activity来选择联系人的例子：static final int PICK_CONTACT_REQUEST = 1; // The request code...private void pickContact() { Intent pickContactIntent = new Intent(Intent.ACTION_PICK, Uri.par

1.MainActivity.java  public class MainActivity extends AppCompatActivity { Button play,up,down; ToggleButton mute; AudioManager aManager; @Override protected void onCreate(Bun

1. MainActivity.java   xml version="1.0" encoding="utf-8"?>manifest package="com.sh.appsqlitedatabase" xmlns:android="http://schemas.android.com/apk/res/android"> application

1.MainActivity.java  public class MainActivity extends AppCompatActivity { Button tp ; static final int REQUEST_IMAGE_CAPTURE = 1; @Override protected void onCreate(Bundle savedIns

1.Fruit.class 定义为水果实体类    public class Fruit { private String name; private int imageId; public Fruit(String name,int imageId) { this.name = name; this.imageId = i

1.left_fragment.xml  新建一个左侧布局xml version="1.0" encoding="utf-8"?>LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent"

Android的UI也是线程不安全的。也就是说，如果想要更新应用程序里的ui元素，则必须在主线程中进行。1.布格文件：activity_main.xmlxml version="1.0" encoding="utf-8"?>RelativeLayout android:id="@+id/activity_main" xmlns:android="http://sche