Activity bei Aktivität öffnen

1package ch.android.com;
2// Seite 47 im englischen PDF
3import android.app.Activity;
4import android.content.Intent;
5import android.os.Bundle;
6import android.view.KeyEvent;
7
8public class AndroidLernenActivity extends Activity {
9 String tag ="Events";
10
11
12 /** Called when the activity is first created. */
13 @Override
14 public void onCreate(Bundle savedInstanceState) {
15 super.onCreate(savedInstanceState);
16 //---hides the title bar---
17 //requestWindowFeature(Window.FEATURE_NO_TITLE);
18 setContentView(R.layout.main);
19 // Log.d(tag, "In the onCreate() event");
20 }
21 public boolean onKeyDown(int keyCode, KeyEvent event)
22 {
23 if (keyCode == KeyEvent.KEYCODE_DPAD_CENTER)
24 {
25 startActivity(new Intent ("ch.android.Activity2")) ;
26 }
27 return false;
28 }
29
30 public void onStart() { /*...*/}
31 public void onRestart() { /*...*/}
32 public void onResume() { /*...*/}
33 public void onPause() { /*...*/}
34 public void onStop() { /*...*/}
35 public void onDestroy() { /*...*/}
36}

1<?xml version="1.0" encoding="utf-8"?>
2<manifest xmlns:android="http://schemas.android.com/apk/res/android"
3 package="ch.android.com"
4 android:versionCode="1"
5 android:versionName="1.0">
6 <uses-sdk android:minSdkVersion="10" />
7
8 <application android:icon="@drawable/icon" android:label="@string/app_name">
9 <activity android:name=".AndroidLernenActivity"
10 android:label="@string/app_name">
11 <intent-filter>
12 <action android:name="android.intent.action.MAIN" />
13 <category android:name="android.intent.category.LAUNCHER" />
14 </intent-filter>
15 </activity>
16 <activity android:name=".Activity2"
17 android:label="Activity2">
18 <intent-filter >
19 <action android:name="ch.android.Activity2" />
20 <category android:name="android.intent.category.DEFAULT" />
21 </intent-filter>
22 </activity>
23 </application>
24</manifest>

1<?xml version="1.0" encoding="utf-8"?>
2<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
3 android:orientation="vertical"
4 android:layout_width="fill_parent"
5 android:layout_height="fill_parent" >
6 <TextView
7 android:layout_width="fill_parent"
8 android:layout_height="wrap_content"
9 android:text="@string/hello" />
10 <Button
11 android:id="@+id/ButtonTest"
12 android:layout_width="fill_parent"
13 android:layout_height="wrap_content"
14 android:text="@string/Button" />
15
16</LinearLayout>

1<?xml version="1.0" encoding="utf-8"?>
2<resources>
3 <string name="hello">Hello World, AndroidLernenActivity!</string>
4 <string name="app_name">AndroidLernen</string>
5 <string name="Button">Dies ist ein Knopf</string>
6</resources>

1<?xml version="1.0" encoding="utf-8"?>
2<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
3 android:orientation="vertical"
4 android:layout_width="fill_parent"
5 android:layout_height="fill_parent" >
6 <TextView
7 android:layout_width="fill_parent"
8 android:layout_height="wrap_content"
9 android:text="This is Activity 2" />
10</LinearLayout>

1package ch.android.com;
2import android.app.Activity;
3import android.os.Bundle;
4public class Activity2 extends Activity {
5 @Override
6 public void onCreate(Bundle savedInstanceState) {
7 super.onCreate(savedInstanceState);
8 setContentView(R.layout.activity2);
9 }
10}