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--- eim:colocvii:colocviu01 [2019/03/25 15:29]
dragos.niculescu [Rezolvări]
+++ eim:colocvii:colocviu01 [2020/03/29 20:33] (current)
andrei.bolojan
@@ Line 7: / Line 7: @@
 </HTML>
-{{url>https://ocw.cs.pub.ro/courses/_media/eim/colocvii/colocviu01/eim2017-tp01-varsim.pdf 90%,800px}}
+{{url>https://ocw.cs.pub.ro/courses/_media/eim/colocvii/colocviu01/eim-colocviu1-exemplu.pdf 90%,800px}}
 <HTML>
@@ Line 13: / Line 13: @@
 </HTML>
-{{ :eim:colocvii:colocviu01:eim2017-tp01-varsim.pdf }}
+{{ :eim:colocvii:colocviu01:eim-colocviu1-exemplu.pdf }}
 ===== Observații Generale =====
@@ Line 19: / Line 19: @@
 Pentru rezolvarea subiectelor propuse în cadrul colocviului 1, sunt necesare:
   * un cont Github personal, pe care să existe drepturi de citire și de scriere;
-  * SDK-ul de Android (cu o imagine pentru nivelul de API 16 - Jelly Bean 4.1);
+  * SDK-ul de Android (cu o imagine pentru nivelul de API 24 - Nougat 7.0);
   * mediul de dezvoltare integrat Android Studio;
   * un dispozitiv mobil:
@@ Line 285: / Line 285: @@
 <file java PracticalTest01Activity.java>
-package ro.pub.cs.systems.eim.practicaltest01;
+package ro.pub.cs.systems.eim.practicaltest01.view;
-import android.app.Activity;
+import android.content.BroadcastReceiver;
+import android.content.Context;
 import android.content.Intent;
+import android.content.IntentFilter;
+import android.support.v7.app.AppCompatActivity;
 import android.os.Bundle;
-import android.view.Menu;
+import android.util.Log;
-import android.view.MenuItem;
 import android.view.View;
 import android.widget.Button;
 import android.widget.EditText;
 import android.widget.Toast;
+import ro.pub.cs.systems.eim.practicaltest01.R;
+import ro.pub.cs.systems.eim.practicaltest01.general.Constants;
+import ro.pub.cs.systems.eim.practicaltest01.service.PracticalTest01Service;
-public class PracticalTest01MainActivity extends Activity {
+public class PracticalTest01MainActivity extends AppCompatActivity {
-  private EditText leftEditText = null;
+  private EditText leftEditText;
-  private EditText rightEditText = null;
+  private EditText rightEditText;
-  private Button leftButton = null;
+  private Button pressMeButton, pressMeTooButton;
-  private Button rightButton = null;
   @Override
@@ Line 311: / Line 316: @@
     leftEditText = (EditText)findViewById(R.id.left_edit_text);
     rightEditText = (EditText)findViewById(R.id.right_edit_text);
+    pressMeButton = (Button)findViewById(R.id.press_me_button);
+    pressMeTooButton = (Button)findViewById(R.id.press_me_too_button);
     leftEditText.setText(String.valueOf(0));
     rightEditText.setText(String.valueOf(0));
-    leftButton = (Button)findViewById(R.id.left_button);
-    rightButton = (Button)findViewById(R.id.right_button);
-  }
-  @Override
-  public boolean onCreateOptionsMenu(Menu menu) {
-    getMenuInflater().inflate(R.menu.practical_test01, menu);
-    return true;
-  }
-  @Override
-  public boolean onOptionsItemSelected(MenuItem item) {
-    int id = item.getItemId();
-    if (id == R.id.action_settings) {
-      return true;
-    }
-    return super.onOptionsItemSelected(item);
   }
 }
@@ Line 348: / Line 339: @@
 <code java>
-public class PracticalTest01MainActivity extends Activity {
+public class PracticalTest01MainActivity extends AppCompatActivity {
   private ButtonClickListener buttonClickListener = new ButtonClickListener();
@@ Line 354: / Line 345: @@
     @Override
     public void onClick(View view) {
+      int leftNumberOfClicks = Integer.valueOf(leftEditText.getText().toString());
+      int rightNumberOfClicks = Integer.valueOf(rightEditText.getText().toString());
       switch(view.getId()) {
-        case R.id.left_button:
+        case R.id.press_me_button:
-          int leftNumberOfClicks = Integer.parseInt(leftEditText.getText().toString());
           leftNumberOfClicks++;
           leftEditText.setText(String.valueOf(leftNumberOfClicks));
           break;
-        case R.id.right_button:
+        case R.id.press_me_too_button:
-          int rightNumberOfClicks = Integer.parseInt(rightEditText.getText().toString());
           rightNumberOfClicks++;
           rightEditText.setText(String.valueOf(rightNumberOfClicks));
@@ Line 375: / Line 367: @@
     // ...
-    leftButton.setOnClickListener(buttonClickListener);
+    pressMeButton.setOnClickListener(buttonClickListener);
-    rightButton.setOnClickListener(buttonClickListener);
+    pressMeTooButton.setOnClickListener(buttonClickListener);
   }
@@ Line 429: / Line 421: @@
     if (savedInstanceState != null) {
-      if (savedInstanceState.containsKey("leftCount")) {
+      if (savedInstanceState.containsKey(Constants.LEFT_COUNT)) {
-        leftEditText.setText(savedInstanceState.getString("leftCount"));
+        leftEditText.setText(savedInstanceState.getString(Constants.LEFT_COUNT));
       } else {
         leftEditText.setText(String.valueOf(0));
       }
-      if (savedInstanceState.containsKey("rightCount")) {
+      if (savedInstanceState.containsKey(Constants.RIGHT_COUNT)) {
-        rightEditText.setText(savedInstanceState.getString("rightCount"));
+        rightEditText.setText(savedInstanceState.getString(Constants.RIGHT_COUNT));
       } else {
         rightEditText.setText(String.valueOf(0));
@@ Line 447: / Line 439: @@
   @Override
   protected void onSaveInstanceState(Bundle savedInstanceState) {
-    savedInstanceState.putString("leftCount", leftEditText.getText().toString());
+    savedInstanceState.putString(Constants.LEFT_COUNT, leftEditText.getText().toString());
-    savedInstanceState.putString("rightCount", rightEditText.getText().toString());
+    savedInstanceState.putString(Constants.RIGHT_COUNT, rightEditText.getText().toString());
   }
   @Override
   protected void onRestoreInstanceState(Bundle savedInstanceState) {
-    if (savedInstanceState.containsKey("leftCount")) {
+    if (savedInstanceState.containsKey(Constants.LEFT_COUNT)) {
-      leftEditText.setText(savedInstanceState.getString("leftCount"));
+      leftEditText.setText(savedInstanceState.getString(Constants.LEFT_COUNT));
     } else {
       leftEditText.setText(String.valueOf(0));
     }
-    if (savedInstanceState.containsKey("rightCount")) {
+    if (savedInstanceState.containsKey(Constants.RIGHT_COUNT)) {
-      rightEditText.setText(savedInstanceState.getString("rightCount"));
+      rightEditText.setText(savedInstanceState.getString(Constants.RIGHT_COUNT));
     } else {
       rightEditText.setText(String.valueOf(0));
@@ Line 499: / Line 491: @@
 <manifest ... >
   <application ... >
-    <activity
+    <activity android:name=".view.PracticalTest01SecondaryActivity">
-      android:name=".PracticalTest01SecondaryActivity"
-      android:label="@string/title_activity_practical_test01_secondary" >
       <intent-filter>
-        <action android:name="ro.pub.cs.systems.eim.intent.action.PracticalTest01SecondaryActivity" />
+        <action android:name="ro.pub.cs.systems.eim.practicaltest01.intent.action.PracticalTest01SecondaryActivity" />
         <category android:name="android.intent.category.DEFAULT" />
       </intent-filter>
@@ Line 560: / Line 550: @@
 <file java PracticalTest01SecondaryActivity.java>
-package ro.pub.cs.systems.eim.practicaltest01;
+package ro.pub.cs.systems.eim.practicaltest01.view;
-import android.app.Activity;
 import android.content.Intent;
+import android.support.v7.app.AppCompatActivity;
 import android.os.Bundle;
-import android.view.Menu;
-import android.view.MenuItem;
 import android.view.View;
 import android.widget.Button;
 import android.widget.TextView;
-public class PracticalTest01SecondaryActivity extends Activity {
+import ro.pub.cs.systems.eim.practicaltest01.R;
+import ro.pub.cs.systems.eim.practicaltest01.general.Constants;
-  private TextView numberOfClicksTextView = null;
-  private Button okButton = null;
+public class PracticalTest01SecondaryActivity extends AppCompatActivity {
-  private Button cancelButton = null;
+  private TextView numberOfClicksTextView;
+  private Button okButton, cancelButton;
   private ButtonClickListener buttonClickListener = new ButtonClickListener();
   private class ButtonClickListener implements View.OnClickListener {
     @Override
     public void onClick(View view) {
-      switch(view.getId()) {
+      switch (view.getId()) {
         case R.id.ok_button:
           setResult(RESULT_OK, null);
@@ Line 590: / Line 580: @@
       }
       finish();
-    }
+      }
   }
   @Override
   protected void onCreate(Bundle savedInstanceState) {
     super.onCreate(savedInstanceState);
     setContentView(R.layout.activity_practical_test01_secondary);
     numberOfClicksTextView = (TextView)findViewById(R.id.number_of_clicks_text_view);
     Intent intent = getIntent();
-    if (intent != null && intent.getExtras().containsKey("numberOfClicks")) {
+    if (intent != null && intent.getExtras().containsKey(Constants.NUMBER_OF_CLICKS)) {
-      int numberOfClicks = intent.getIntExtra("numberOfClicks", -1);
+      int numberOfClicks = intent.getIntExtra(Constants.NUMBER_OF_CLICKS, -1);
       numberOfClicksTextView.setText(String.valueOf(numberOfClicks));
     }
     okButton = (Button)findViewById(R.id.ok_button);
     okButton.setOnClickListener(buttonClickListener);
     cancelButton = (Button)findViewById(R.id.cancel_button);
     cancelButton.setOnClickListener(buttonClickListener);
-  }
-  @Override
-  public boolean onCreateOptionsMenu(Menu menu) {
-    getMenuInflater().inflate(R.menu.practical_test01_secondary, menu);
-    return true;
-  }
-  @Override
-  public boolean onOptionsItemSelected(MenuItem item) {
-    int id = item.getItemId();
-    if (id == R.id.action_settings) {
-      return true;
-    }
-    return super.onOptionsItemSelected(item);
   }
 }
@@ Line 667: / Line 642: @@
 <code java>
-public class PracticalTest01MainActivity extends Activity {
+public class PracticalTest01MainActivity extends AppCompatActivity {
-  private final static int SECONDARY_ACTIVITY_REQUEST_CODE = 1;
+  private Button navigateToSecondaryActivityButton;
-  private Button navigateToSecondaryActivityButton = null;
   private ButtonClickListener buttonClickListener = new ButtonClickListener();
-  private class ButtonClickListener implements Button.OnClickListener {
+  private class ButtonClickListener implements View.OnClickListener {
     @Override
@@ Line 681: / Line 654: @@
         case R.id.navigate_to_secondary_activity_button:
           Intent intent = new Intent(getApplicationContext(), PracticalTest01SecondaryActivity.class);
-	  int numberOfClicks = Integer.parseInt(leftEditText.getText().toString()) +
+          int numberOfClicks = Integer.parseInt(leftEditText.getText().toString()) +
                                Integer.parseInt(rightEditText.getText().toString());
-          intent.putExtra("numberOfClicks", numberOfClicks);
+          intent.putExtra(Constants.NUMBER_OF_CLICKS, numberOfClicks);
-          startActivityForResult(intent, SECONDARY_ACTIVITY_REQUEST_CODE);
+          startActivityForResult(intent, Constants.SECONDARY_ACTIVITY_REQUEST_CODE);
           break;
         // ...
@@ Line 703: / Line 676: @@
   @Override
   protected void onActivityResult(int requestCode, int resultCode, Intent intent) {
-    if (requestCode == SECONDARY_ACTIVITY_REQUEST_CODE) {
+    if (requestCode == Constants.SECONDARY_ACTIVITY_REQUEST_CODE) {
       Toast.makeText(this, "The activity returned with result " + resultCode, Toast.LENGTH_LONG).show();
     }
@@ Line 725: / Line 698: @@
   <application ...>
     <!-- other components -->
     <service
-      android:name="ro.pub.cs.systems.eim.PracticalTest01Service"
+      android:name=".service.PracticalTest01Service"
       android:enabled="true"
       android:exported="false" />
@@ Line 743: / Line 716: @@
 import android.content.Intent;
 import android.os.IBinder;
+import ro.pub.cs.systems.eim.practicaltest01.general.Constants;
 public class PracticalTest01Service extends Service {
@@ Line 750: / Line 725: @@
   @Override
   public int onStartCommand(Intent intent, int flags, int startId) {
-    int firstNumber = intent.getIntExtra("firstNumber", -1);
+    int firstNumber = intent.getIntExtra(Constants.FIRST_NUMBER, -1);
-    int secondNumber = intent.getIntExtra("secondNumber", -1);
+    int secondNumber = intent.getIntExtra(Constants.SECOND_NUMBER, -1);
     processingThread = new ProcessingThread(this, firstNumber, secondNumber);
     processingThread.start();
@@ Line 779: / Line 754: @@
 import android.content.Intent;
 import android.util.Log;
+import ro.pub.cs.systems.eim.practicaltest01.general.Constants;
 public class ProcessingThread extends Thread {
@@ Line 799: / Line 776: @@
   @Override
   public void run() {
-    Log.d("[ProcessingThread]", "Thread has started!");
+    Log.d(Constants.PROCESSING_THREAD_TAG, "Thread has started! PID: " + Process.myPid() + " TID: " + Process.myTid());
     while (isRunning) {
       sendMessage();
       sleep();
     }
-    Log.d("[ProcessingThread]", "Thread has stopped!");
+    Log.d(Constants.PROCESSING_THREAD_TAG, "Thread has stopped!");
   }
@@ Line 810: / Line 787: @@
     Intent intent = new Intent();
     intent.setAction(Constants.actionTypes[random.nextInt(Constants.actionTypes.length)]);
-    intent.putExtra("message", new Date(System.currentTimeMillis()) + " " + arithmeticMean + " " + geometricMean);
+    intent.putExtra(Constants.BROADCAST_RECEIVER_EXTRA,
+            new Date(System.currentTimeMillis()) + " " + arithmeticMean + " " + geometricMean);
     context.sendBroadcast(intent);
   }
@@ Line 855: / Line 833: @@
         && serviceStatus == Constants.SERVICE_STOPPED) {
       Intent intent = new Intent(getApplicationContext(), PracticalTest01Service.class);
-      intent.putExtra("firstNumber", leftNumberOfClicks);
+      intent.putExtra(Constants.FIRST_NUMBER, leftNumberOfClicks);
-      intent.putExtra("secondNumber", rightNumberOfClicks);
+      intent.putExtra(Constants.SECOND_NUMBER, rightNumberOfClicks);
       getApplicationContext().startService(intent);
       serviceStatus = Constants.SERVICE_STARTED;
@@ Line 886: / Line 864: @@
   @Override
   public void onReceive(Context context, Intent intent) {
-    Log.d("[Message]", intent.getStringExtra("message"));
+     Log.d(Constants.BROADCAST_RECEIVER_TAG, intent.getStringExtra(Constants.BROADCAST_RECEIVER_EXTRA));
   }
 }

Informaţii Administrative

Laboratoarele sunt disponibile la urmatoarea adresa. Codul sursa il gasiti pe Gitlab

Colocvii

Resurse

Documentație Examen

Tutoriale

eim/colocvii/colocviu01.1553520549.txt.gz · Last modified: 2019/03/25 15:29 by dragos.niculescu

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