Презентация Android development онлайн
На нашем сайте вы можете скачать и просмотреть онлайн доклад-презентацию на тему Android development абсолютно бесплатно. Урок-презентация на эту тему содержит всего 28 слайдов. Все материалы созданы в программе PowerPoint и имеют формат ppt или же pptx. Материалы и темы для презентаций взяты из открытых источников и загружены их авторами, за качество и достоверность информации в них администрация сайта не отвечает, все права принадлежат их создателям. Если вы нашли то, что искали, отблагодарите авторов - поделитесь ссылкой в социальных сетях, а наш сайт добавьте в закладки.
Презентации » Устройства и комплектующие » Android development
Оцените!
Оцените презентацию от 1 до 5 баллов!
- Тип файла:ppt / pptx (powerpoint)
- Всего слайдов:28 слайдов
- Для класса:1,2,3,4,5,6,7,8,9,10,11
- Размер файла:568.06 kB
- Просмотров:66
- Скачиваний:0
- Автор:неизвестен
Слайды и текст к этой презентации:
№2 слайд
![Android history Android is an](/documents_6/1be3e091c44078e06fbc363f8c4487f8/img1.jpg)
Содержание слайда: Android history
Android is an open source and Linux-based Operating System for mobile devices such as smartphones and tablet computers. Android was developed by the Open Handset Alliance, led by Google, and other companies.
The first beta version of the Android Software Development Kit (SDK) was released by Google in 2007 where as the first commercial version, Android 1.0, was released in September 2008.
№6 слайд
![Project Folders src - This](/documents_6/1be3e091c44078e06fbc363f8c4487f8/img5.jpg)
Содержание слайда: Project Folders
src - This contains the .java source files for your project. By default, it includes a MainActivity.java source file having an activity class that runs when your app is launched using the app icon.
res/drawable - This is a directory for drawable objects that are designed for high-density screens.
res/layout - This is a directory for files that define your app's user interface.
res/values - This is a directory for other various XML files that contain a collection of resources, such as strings and colors definitions.
AndroidManifest.xml - This is the manifest file which describes the fundamental characteristics of the app and defines each of its components.
№7 слайд
![Activities An activity](/documents_6/1be3e091c44078e06fbc363f8c4487f8/img6.jpg)
Содержание слайда: Activities
An activity represents a single screen with a user interface, in-short Activity performs actions on the screen. For example, an email application might have one activity that shows a list of new emails, another activity to compose an email, and another activity for reading emails. If an application has more than one activity, then one of them should be marked as the activity that is presented when the application is launched.
public class MainActivity extends Activity {
@Override
public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main);
}
}
№9 слайд
![Layout lt RelativeLayout](/documents_6/1be3e091c44078e06fbc363f8c4487f8/img8.jpg)
Содержание слайда: Layout
<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" >
<TextView
android:layout_width="wrap_content“
android:layout_height="wrap_content"
android:layout_centerHorizontal="true"
android:layout_centerVertical="true"
android:text="@string/hello_world"/>
</RelativeLayout>
№10 слайд
![Manifest lt manifest xmlns](/documents_6/1be3e091c44078e06fbc363f8c4487f8/img9.jpg)
Содержание слайда: Manifest
<manifest xmlns:android=http://schemas.android.com/apk/res/android
package="com.example.helloworld"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk
android:minSdkVersion="8"
android:targetSdkVersion="22" />
<uses-permission android:name="android.permission.CAMERA" />
<uses-permission android:name="android.permission.INTERNET" />
<application
android:icon="@drawable/ic_launcher"
android:label="@string/app_name"
android:theme="@style/AppTheme" >
<activity
android:name=".MainActivity“
android:label="@string/title_activity_main" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER"/> </intent-filter>
</activity>
</application>
</manifest>
№11 слайд
![Building with gradle apply](/documents_6/1be3e091c44078e06fbc363f8c4487f8/img10.jpg)
Содержание слайда: Building with gradle
apply plugin: 'com.android.application'
android {
compileSdkVersion 23
buildToolsVersion "23.0.3"
defaultConfig {
applicationId "com.resentient.hwat"
versionCode 2
versionName "1.0.2"
}
}
dependencies {
testCompile 'junit:junit:4.12'
compile 'com.android.support:appcompat-v7:23.4.0'
compile 'com.clarifai:clarifai-api-java:1.2.0'
}
№14 слайд
![Shared PREFERENCES Shared](/documents_6/1be3e091c44078e06fbc363f8c4487f8/img13.jpg)
Содержание слайда: Shared PREFERENCES
Shared Preferences allow you to save and retrieve data in the form of key-value pair. Shared Preferences values will persist across user sessions. Data in shared preferences will be persistent even though user closes the application.
You can get values from Shared preferences using getSharedPreferences() method.
SharedPreferences sharedProperties = getSharedPreferences(“MyPreferences”, Context.MODE_PRIVATE);
if (sharedProperties.getBoolean(“LaunchedFirstly”, true)) {
SharedPreferences.Editor e = sharedProperties.edit();
e.putBoolean(“LaunchedFirstly”, false);
e.commit();
}
№15 слайд
![Intent An Intent in the](/documents_6/1be3e091c44078e06fbc363f8c4487f8/img14.jpg)
Содержание слайда: Intent
An Intent in the Android operating system is a software mechanism that allows users to start some actions or just passing some info between two activities.
Example:
Intent i = new Intent(getApplicationContext(), MyActivity.class);
i.putExtra("name", “Ihor");
i.putExtra("surname", “Sokolyk";
startActivity(i);
Intent intent = getIntent();
String message = intent.getStringExtra(“name");
№16 слайд
![Starting camera example](/documents_6/1be3e091c44078e06fbc363f8c4487f8/img15.jpg)
Содержание слайда: Starting camera example:
Starting camera example:
Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
Uril file = Uri.fromFile(new File(pathToImage));
intent.putExtra(MediaStore.EXTRA_OUTPUT, file);
startActivityForResult(intent, 100);
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
if (requestCode == 100) {
if (resultCode == RESULT_OK) {
takenPhoto.setImageURI(file);
}
}
}
№17 слайд
![Sharing in facebook example](/documents_6/1be3e091c44078e06fbc363f8c4487f8/img16.jpg)
Содержание слайда: Sharing in facebook example:
Sharing in facebook example:
public void shareOnFacebook(View view) {
Uri uri = Uri.fromFile(takeScreenshot());
Intent sharingIntent = new Intent(android.content.Intent.ACTION_SEND);
sharingIntent.setType("image/*");
sharingIntent.putExtra(Intent.EXTRA_STREAM, uri);
setDefaultPackageForIntent(sharingIntent, "com.facebook");
if (sharingIntent.getPackage() != null) {
startActivity(sharingIntent);
} else {
Toast.makeText(getApplicationContext(), “Facebook not installed”, Toast.LENGTH_SHORT).show();
}
}
№20 слайд
![On touch and swipe events](/documents_6/1be3e091c44078e06fbc363f8c4487f8/img19.jpg)
Содержание слайда: On touch and swipe events
@Override
public boolean onTouchEvent(MotionEvent event) {
int action = event.getActionMasked();
switch (action) {
case MotionEvent.ACTION_DOWN:
initialX = event.getX();
initialY = event.getY();
Log.d(TAG, "Action was DOWN");
break;
case MotionEvent.ACTION_MOVE:
Log.d(TAG, "Action was MOVE");
break;
№21 слайд
![case MotionEvent.ACTION UP](/documents_6/1be3e091c44078e06fbc363f8c4487f8/img20.jpg)
Содержание слайда: case MotionEvent.ACTION_UP:
case MotionEvent.ACTION_UP:
float finalX = event.getX();
float finalY = event.getY();
Log.d(TAG, "Action was UP");
if (initialX < finalX) {
Log.d(TAG, "Left to Right swipe performed");
}
if (initialX > finalX) {
Log.d(TAG, "Right to Left swipe performed");
}
if (initialY < finalY) {
Log.d(TAG, "Up to Down swipe performed");
}
if (initialY > finalY) {
Log.d(TAG, "Down to Up swipe performed");
}
break;
}
return super.onTouchEvent(event);
}
№23 слайд
![Check Internet connection](/documents_6/1be3e091c44078e06fbc363f8c4487f8/img22.jpg)
Содержание слайда: Check Internet connection
ConnectivityManager connectivity = (ConnectivityManager) getApplicationContext().getSystemService(Context.CONNECTIVITY_SERVICE);
if (connectivity != null) {
NetworkInfo info = connectivity.getActiveNetworkInfo();
if (info != null)
if (info.getState() == NetworkInfo.State.CONNECTED) {
Toast.makeText(getApplicationContext(), “Connected”, Toast.LENGTH_SHORT).show();
}
}
№24 слайд
![Async task class DataLoader](/documents_6/1be3e091c44078e06fbc363f8c4487f8/img23.jpg)
Содержание слайда: Async task
class DataLoader extends AsyncTask<Void, Void, Void> {
@Override
protected Void doInBackground(Void... params) {
insertLevelsDataIntoDatabase();
return null;
}
@Override
protected void onPostExecute(Void aVoid) {
new android.os.Handler().postDelayed(
new Runnable() {
public void run() {
Intent intent = new Intent(getApplicationContext(), WelcomeActivity.class);
startActivity(intent);
finish();
}
}, 2000);
super.onPostExecute(aVoid);
}
}
DataLoader dataLoader = new DataLoader();
dataLoader.execute();
№25 слайд
![Sqlite Creating database](/documents_6/1be3e091c44078e06fbc363f8c4487f8/img24.jpg)
Содержание слайда: Sqlite
Creating database:
public class DatabaseCreator extends SQLiteOpenHelper {
public DatabaseCreator(Context context) {
super(context, “MyDatabase”, null, 1);
}
@Override
public void onCreate(SQLiteDatabase db) {
db.execSQL("CREATE TABLE IF NOT EXISTS levels ("
+ "id integer primary key autoincrement,"
+ "levelId integer NOT NULL,"
+ "question text NOT NULL,"
+ "answer text NOT NULL,"
+ "type text NOT NULL,"
+ "image BLOB default NULL,"
+ "isLevelCompleted integer);");
}
@Override
public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
}
}
№26 слайд
![Inserting data into database](/documents_6/1be3e091c44078e06fbc363f8c4487f8/img25.jpg)
Содержание слайда: Inserting data into database:
Inserting data into database:
DatabaseCreator dbHelper = new DatabaseCreator(context);
SQLiteDatabase db = dbHelper.getWritableDatabase();
ContentValues cv = new ContentValues();
cv.put(“levelId”, 1);
cv.put(“question”,”Catch smile”);
cv.put(“answer”, “smile”);
cv.put(“type”, “emotion”);
if (db.update(“levels”, cv, “levelId = " + 1, null) == 0) {
db.insert(“levels”, null, cv);
}
cv.clear();
№27 слайд
![Fetching data from database](/documents_6/1be3e091c44078e06fbc363f8c4487f8/img26.jpg)
Содержание слайда: Fetching data from database:
Fetching data from database:
DatabaseCreator dbHelper = new DatabaseCreator(context);
SQLiteDatabase db = dbHelper.getWritableDatabase();
Cursor cursor = db.rawQuery("SELECT * FROM levels WHERE levelId = 1", null);
if (cursor.moveToFirst()) {
do {
levelQuestion = cursor.getString(cursor.getColumnIndex(“question”));
levelAnswer = cursor.getString(cursor.getColumnIndex(“answer”));
levelType = cursor.getString(cursor.getColumnIndex(“type”));
correctImage = cursor.getBlob(cursor.getColumnIndex(“image”));
} while (cursor.moveToNext());
}
cursor.close();
Скачать все slide презентации Android development одним архивом:
Похожие презентации
-
Development and Simulation
-
ВКР: Разработка ANDROID приложения с использованием MVP архитектуры
-
Software Development Life Cycle and Methodologies
-
MVC в Android. Создание простейшего приложения
-
Разработка игры под Android
-
Android. Структура проекта
-
Software development methodologies
-
Test-Driven Development (разработка через тестирование)
-
Technologies of the development of augmented reality apps
-
Test-driven development