SDK
Install specific Android Versions through SDK Manager
Create / install an
Android Virtual Device (AVD)cs423- cotter
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Client / Server Programming in Android
Содержание
- 1. Client / Server Programming in Android
- 2. TCP Echo Client (1)cs423- cotter
- 3. Android Mobile DevelopmentInstall Eclipse IDEInstall Android Development
- 4. Android SDK / AVD Managerscs423- cotter
- 5. Android SDK Managercs423- cotter
- 6. AVD Managercs423- cotter
- 7. From file menu, select “New” then “Project”cs423- cotter
- 8. Identify project namecs423- cotter
- 9. Identify the desired SDK (based on the target device)cs423- cotter
- 10. Provide a unique package name (reverse Domain Name + project)cs423- cotter
- 11. Empty Project Configurationcs423- cotter
- 12. Main.xml – Graphical Layout Empty Projectcs423- cotter
- 13. Main.xml – Graphical Layout Completed Projectcs423- cotter
- 14. Main.xmlcs423- cotter
- 15. EchoClientActivity.xmlcs423- cotter
- 16. Strings.xmlcs423- cotter
- 17. AndroidManifest.xmlcs423- cotter
- 18. Base Android 2.2 Phone VDcs423- cotter
- 19. Base Android 2.2 Phone VDcs423- cotter
- 20. UDP Echo Client (1)cs423- cotter
- 21. UDP Echo Client (2)cs423- cotter
- 22. UDP Echo Client (3)cs423- cotter
- 23. echoClient.apkcs423- cotter
- 24. EchoClientActivity.javapackage edu.umkc.cotterr.echo;import android.app.Activity; android.os.Bundle; android.view.View; android.widget.EditText; android.widget.Toast;
- 25. EchoClientActivity.javapublic void onCreate(Bundle savedInstanceState) {
- 26. EchoClientActivity.javapublic void myEchoHandler(View view) { switch
- 27. EchoClientActivity.javacase R.id.button2: /* This is the
- 28. EchoClientActivity.java case R.id.button3: // This is the
- 29. R.javapackage edu.umkc.cotterr.echo;public final class R {
- 30. R.java public static final class id {
- 31. R.java public static final class string {
- 32. main.xml cs423- cotter
- 33. main.xml cs423- cotter
- 34. main.xml cs423- cotter
- 35. main.xml cs423- cotter
- 36. main.xml cs423- cotter
- 37. strings.xml Hello World, EchoClientActivity! Bob\'s
- 38. AndroidManifest.xml
- 39. SummaryAndroid Development has strong support in Eclipse
- 40. Скачать презентанцию
TCP Echo Client (1)cs423- cotter
Слайды и текст этой презентации
Слайд 1Client / Server Programming
in Android
Eclipse IDE
Android Development Tools (ADT)
Android SDK
http://www.vogella.com/articles/Android/article.html
Слайд 3Android Mobile Development
Install Eclipse IDE
Install Android Development Tools (ADT)
Install Android
SDK
Android Virtual Device (AVD)
Слайд 24EchoClientActivity.java
package edu.umkc.cotterr.echo;
import android.app.Activity; android.os.Bundle; android.view.View; android.widget.EditText; android.widget.Toast; java.net.*; java.io.*;
import edu.umkc.cotterr.echo.R;
public
class EchoClientActivity extends Activity {
/** Called when the
activity is first created. */ private EditText portNumber;
private EditText hostName;
private EditText inputMsg;
private EditText resultMsg;
private InetAddress ia;
private Socket mySocket;
private InputStream isIn;
private PrintStream psOut;
private byte abIn[];
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Слайд 25EchoClientActivity.java
public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState);
setContentView(R.layout.main);
hostName = (EditText) findViewById(R.id.editText1);
portNumber = (EditText) findViewById(R.id.editText2);
resultMsg = (EditText) findViewById(R.id.editText3);
inputMsg = (EditText) findViewById(R.id.editText4);
}
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Слайд 26EchoClientActivity.java
public void myEchoHandler(View view) {
switch (view.getId()) {
case R.id.button1: /* This is the connect button
String
sHostName = hostName.getText().toString(); int iPortNumber = Integer.parseInt(portNumber.getText().toString());
try {
ia = InetAddress.getByName(sHostName);
mySocket = new Socket (ia, iPortNumber); Toast.makeText(this,"We are now connected to: " + hostName + "\n", Toast.LENGTH_LONG).show();
} catch (Exception ex) {
Toast.makeText(this,"Connect to " + hostName + "failed. Exception" + ex + "\n", Toast.LENGTH_LONG).show();
}
break;
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Слайд 27EchoClientActivity.java
case R.id.button2: /* This is the send data button
*/
String sResponse, sTemp
String sInputMsg = inputMsg.getText().toString();
int iNumRead;
abIn
= new byte[1024];try {
isIn = mySocket.getInputStream();
psOut = new PrintStream(mySocket.getOutputStream());
psOut.print(sInputMsg);
iNumRead = isIn.read(abIn,0,1024);
sTemp = new String(abIn, 0, iNumRead);
sResponse = "We got back: " + sTemp;
resultMsg.setText(sResponse);
} catch (Exception ex) {
Toast.makeText(this,"Send data failed. Exception" + ex + "\n",
Toast.LENGTH_LONG).show(); }
break;
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Слайд 28EchoClientActivity.java
case R.id.button3: // This is the quit button.
String
sTemp2;
try {
mySocket.close();
inputMsg.setText("");
sTemp2
= new String ("Goodbye ...");resultMsg.setText(sTemp2);
} catch (Exception ex) {
Toast.makeText(this,"Close socket failed. Exception“
+ ex + "\n", Toast.LENGTH_LONG).show();
}
} //end of switch
} //end of myEchoHandler
} //end of EchoClientActivity
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Слайд 29R.java
package edu.umkc.cotterr.echo;
public final class R {
public static final
class attr {
}
public static final class
color {public static final int backgroundColor=0x7f050000;
}
public static final class drawable {
public static final int ic_launcher=0x7f020000;
}
public static final class layout {
public static final int main=0x7f030000;
}
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Слайд 30R.java
public static final class id {
public static final int button1=0x7f060004;
public static
final int button2=0x7f060008;public static final int button3=0x7f060009;
public static final int editText1=0x7f060001;
public static final int editText2=0x7f060003;
public static final int editText3=0x7f06000b;
public static final int editText4=0x7f060006;
public static final int linearLayout1=0x7f060007;
public static final int textView1=0x7f060000;
public static final int textView2=0x7f060002;
public static final int textView3=0x7f060005;
public static final int textView4=0x7f06000a;
}
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Слайд 31R.java
public static final class string {
public static final int ConvertButton=0x7f040002;
public static
final int DefaultHost=0x7f040003;public static final int DefaultPort=0x7f040004;
public static final int app_name=0x7f040001;
public static final int connectButton=0x7f040007;
public static final int hello=0x7f040000;
public static final int hostname=0x7f040005;
public static final int input=0x7f040008;
public static final int port=0x7f040006;
public static final int quit=0x7f04000b;
public static final int result=0x7f040009;
public static final int send=0x7f04000a;
}
}
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Слайд 32main.xml
android:background="@color/backgroundColor"
android:orientation="vertical" >
android:id="@+id/textView1“ android:layout_width="wrap_content“android:layout_height="wrap_content" android:text="@string/hostname"
android:textAppearance="?android:attr/textAppearanceMedium" />
android:layout_height="wrap_content“
android:hint="@string/DefaultHost“ android:inputType="text" >
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Слайд 33main.xml
android:layout_height="wrap_content"
android:text="@string/port"
android:textAppearance="?android:attr/textAppearanceMedium" />
android:layout_height="wrap_content"
android:hint="@string/DefaultPort“ android:inputType="text"
android:width="100dp" />
android:layout_width="wrap_content“ android:layout_height="wrap_content"
android:onClick="myEchoHandler"
android:text="@string/connectButton" />
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Слайд 34main.xml
android:layout_height="wrap_content"
android:text="@string/input"
android:textAppearance="?android:attr/textAppearanceMedium" />android:layout_width="match_parent"
android:inputType="text"
android:layout_height="wrap_content" />
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Слайд 35main.xml
android:layout_height="wrap_content" >
android:id="@+id/button2"android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:onClick="myEchoHandler"
android:text="@string/send" />
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/quit" android:onClick="myEchoHandler"/>
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Слайд 36main.xml
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/result"
android:textAppearance="?android:attr/textAppearanceLarge" />android:layout_width="match_parent"
android:layout_height="wrap_content"
android:height="100dp"
android:inputType="textMultiLine" />
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Слайд 37strings.xml
Hello World, EchoClientActivity!
name="app_name">Bob\'s EchoClient
#002864
Convert
name="DefaultHost">localhostcs423- cotter
Слайд 38AndroidManifest.xml
>
android:icon="@drawable/ic_launcher"android:label="@string/app_name" >
android:label="@string/app_name" >
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Слайд 39Summary
Android Development has strong support in Eclipse IDE
Core Android language
is Java, with a full library of Android classes
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