Crash improvviso

[anearion]

Ciao a tutti, ho un problema con questa semplice applicazione, l'unica cosa che è è settare due tab sullo schermo, uno co un analogClock e l'altro come campo vuoto.
Non capisco come mai ma sia sul AVD che sul mio cell (un gratia) va in crash all, avvio.
Allego il codice

XML:

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    >
<TabHost android:id="@+id/tabhost"
	android:layout_width="fill_parent"
	android:layout_height="fill_parent"
	>
<TabWidget android:id="@+id/tabs"
	android:layout_width="fill_parent"
	android:layout_height="wrap_content"
	/>
<FrameLayout android:id="@android:id/tabcontent"
	android:layout_width="fill_parent"
	android:layout_height="fill_parent"
	android:paddingTop="62px"
	>
<AnalogClock android:id="@+id/tab1"
	android:layout_width="fill_parent"
	android:layout_height="fill_parent"
	android:layout_centerHorizontal="true"
	/>
<Button android:id="@+id/tab2"
	android:layout_width="fill_parent"
	android:layout_height="fill_parent"
	android:text="A semi-random button"
	/>
	</FrameLayout>
  </TabHost>
</LinearLayout>

JAVA CODE:

package prova.TabDemo;

import android.app.Activity;
import android.os.Bundle;
import android.widget.TabHost;

public class TabDemo extends Activity {

    @Override
    public void onCreate(Bundle icicle) {
        super.onCreate(icicle);
        setContentView(R.layout.main);
        
        TabHost tabs = (TabHost)findViewById(R.id.tabhost);
        tabs.setup();
        
        TabHost.TabSpec spec = tabs.newTabSpec("tag 1");
        
        spec.setContent(R.id.tab1);
        spec.setIndicator("Clock");
        tabs.addTab(spec);
        
        spec = tabs.newTabSpec("tag2");
        spec.setContent(R.id.tab2);
        spec.setIndicator("Button");
        tabs.addTab(spec);
        
        tabs.setCurrentTab(0);
    }
}

grazie a tutti in anticipo

[androidlab]

Nell'XML puoi togliere il LinearLayout che non ha senso:

XML:
<?xml version="1.0" encoding="utf-8"?><br /> <TabHost android:id="@+id/tabhost"<br /> android:layout_width="fill_parent"<br /> android:layout_height="fill_parent"<br /> ><br /> <TabWidget android:id="@+id/tabs"<br /> android:layout_width="fill_parent"<br /> android:layout_height="wrap_content"<br /> /><br /> <FrameLayout android:id="@android:id/tabcontent"<br /> android:layout_width="fill_parent"<br /> android:layout_height="fill_parent"<br /> android:paddingT<span class="forTooltip">op</span>="62px"<br /> ><br /> <AnalogClock android:id="@+id/tab1"<br /> android:layout_width="fill_parent"<br /> android:layout_height="fill_parent"<br /> android:layout_centerHorizontal="true"<br /> /><br /> <Button android:id="@+id/tab2"<br /> android:layout_width="fill_parent"<br /> android:layout_height="fill_parent"<br /> android:text="A semi-random button"<br /> /><br /> </FrameLayout><br /> </TabHost><br />

 

1

<?xml version="1.0" encoding="utf-8"?>

2

<TabHost android:id="@+id/tabhost"

3

    android:layout_width="fill_parent"

4

    android:layout_height="fill_parent"

5

    >

6

<TabWidget android:id="@+id/tabs"

7

    android:layout_width="fill_parent"

8

    android:layout_height="wrap_content"

9

    />

10

<FrameLayout android:id="@android:id/tabcontent"

11

    android:layout_width="fill_parent"

12

    android:layout_height="fill_parent"

13

    android:paddingTop="62px"

14

    >

15

<AnalogClock android:id="@+id/tab1"

16

    android:layout_width="fill_parent"

17

    android:layout_height="fill_parent"

18

    android:layout_centerHorizontal="true"

19

    />

20

<Button android:id="@+id/tab2"

21

    android:layout_width="fill_parent"

22

    android:layout_height="fill_parent"

23

    android:text="A semi-random button"

24

    />

25

    </FrameLayout>

26

  </TabHost>

27

​

Nel java prova con:

<br /> TabHost tabHost = (TabHost) findViewById(R.id.tabhost);<br /> tabHost.setup();<br /> <br /> // First TAB<br /> tabHost.addTab(this.tabHost.newTabSpec("Tab 1")<br /> .setIndicator("Clock")<br /> .setContent(R.id.tab1));<br /> <br /> // Second TAB<br /> tabHost.addTab(this.tabHost.newTabSpec("Tab 2")<br /> .setIndicator("Button")<br /> .setContent(R.id.tab2));<br /> <br /> this.tabHost.setCurrentTab(0);

15

 

1

​

2

        TabHost tabHost = (TabHost) findViewById(R.id.tabhost);

3

        tabHost.setup();

4

​

5

        // First TAB

6

        tabHost.addTab(this.tabHost.newTabSpec("Tab 1")

7

                .setIndicator("Clock")

8

                .setContent(R.id.tab1));

9

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        // Second TAB

11

        tabHost.addTab(this.tabHost.newTabSpec("Tab 2")

12

                .setIndicator("Button")

13

                .setContent(R.id.tab2));

14

​

15

        this.tabHost.setCurrentTab(0); 

Buon lavoro

[anearion]

grazie mille =)

dunque provando il tuo codice mi da errori relativi al tabHost, più precisamente:

<br /> TabHost tabHost = (TabHost) findViewById(R.id.tabhost); <br /> tabHost.setup(); <br /> <br /> // First TAB <br /> tabHost.addTab(this.tabHost.newTabSpec("Tab 1") <br /> .setIndicator("Clock") <br /> .setContent(R.id.tab1)); <br /> <br /> // Second TAB <br /> tabHost.addTab(this.tabHost.newTabSpec("Tab 2") <br /> .setIndicator("Button") <br /> .setContent(R.id.tab2)); <br /> <br /> this.tabHost.setCurrentTab(0); <br />

16

 

1

​

2

TabHost tabHost = (TabHost) findViewById(R.id.tabhost);  

3

        tabHost.setup();  

4

5

        // First TAB  

6

        tabHost.addTab(this.tabHost.newTabSpec("Tab 1")  

7

                .setIndicator("Clock")  

8

                .setContent(R.id.tab1));  

9

10

        // Second TAB  

11

        tabHost.addTab(this.tabHost.newTabSpec("Tab 2")  

12

                .setIndicator("Button")  

13

                .setContent(R.id.tab2));  

14

15

        this.tabHost.setCurrentTab(0); 

16

​

tabHost cannot be resolved or is not a field

ho dato l'esame di java lo scorso anno ed ora sono un pò arrugginito :P tabHost è dichiarata poco più su, perchè non può essere risolta?

[androidlab]

Togli il this all'ultima riga.

Inviato dal mio Nexus S usando Tapatalk

[anearion]

togliendo tutti i this compila ( mamma mia, m'ero completamente scordato l'uso del this dopo un anno a C e basta ), però non risolve il problema del crash all'avvio

[Jordano]

l'output di logcat sarebbe di aiuto

[anearion]

Scusate per l'assenza ma ho avuto un fine settimana impegnato, copio tutto l'output del logcat, comunque l'errore dovrebbe essere "java.lang.RuntimeException: Your TabHost must have a TabWidget whose id attribute is 'android.R.id.tabs' "

06-06 16:09:01.465: INFO/ActivityManager(58): Starting activity: Intent { act=android.intent.action.MAIN cat=[android.intent.category.LAUNCHER] flg=0x10200000 cmp=prova.TabDemo/.TabDemo }
06-06 16:09:01.725: INFO/ActivityManager(58): Start proc prova.TabDemo for activity prova.TabDemo/.TabDemo: pid=283 uid=10036 gids={1015}
06-06 16:09:02.875: DEBUG/AndroidRuntime(283): Shutting down VM
06-06 16:09:02.875: WARN/dalvikvm(283): threadid=1: thread exiting with uncaught exception (group=0x4001d800)
06-06 16:09:02.895: ERROR/AndroidRuntime(283): FATAL EXCEPTION: main
06-06 16:09:02.895: ERROR/AndroidRuntime(283): java.lang.RuntimeException: Unable to start activity ComponentInfo{prova.TabDemo/prova.TabDemo.TabDemo}: java.lang.RuntimeException: Your TabHost must have a TabWidget whose id attribute is 'android.R.id.tabs'
06-06 16:09:02.895: ERROR/AndroidRuntime(283):     at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2663)
06-06 16:09:02.895: ERROR/AndroidRuntime(283):     at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2679)
06-06 16:09:02.895: ERROR/AndroidRuntime(283):     at android.app.ActivityThread.access$2300(ActivityThread.java:125)
06-06 16:09:02.895: ERROR/AndroidRuntime(283):     at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2033)
06-06 16:09:02.895: ERROR/AndroidRuntime(283):     at android.os.Handler.dispatchMessage(Handler.java:99)
06-06 16:09:02.895: ERROR/AndroidRuntime(283):     at android.os.Looper.loop(Looper.java:123)
06-06 16:09:02.895: ERROR/AndroidRuntime(283):     at android.app.ActivityThread.main(ActivityThread.java:4627)
06-06 16:09:02.895: ERROR/AndroidRuntime(283):     at java.lang.reflect.Method.invokeNative(Native Method)
06-06 16:09:02.895: ERROR/AndroidRuntime(283):     at java.lang.reflect.Method.invoke(Method.java:521)
06-06 16:09:02.895: ERROR/AndroidRuntime(283):     at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:868)
06-06 16:09:02.895: ERROR/AndroidRuntime(283):     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:626)
06-06 16:09:02.895: ERROR/AndroidRuntime(283):     at dalvik.system.NativeStart.main(Native Method)
06-06 16:09:02.895: ERROR/AndroidRuntime(283): Caused by: java.lang.RuntimeException: Your TabHost must have a TabWidget whose id attribute is 'android.R.id.tabs'
06-06 16:09:02.895: ERROR/AndroidRuntime(283):     at android.widget.TabHost.setup(TabHost.java:103)
06-06 16:09:02.895: ERROR/AndroidRuntime(283):     at prova.TabDemo.TabDemo.onCreate(TabDemo.java:15)
06-06 16:09:02.895: ERROR/AndroidRuntime(283):     at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1047)
06-06 16:09:02.895: ERROR/AndroidRuntime(283):     at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2627)
06-06 16:09:02.895: ERROR/AndroidRuntime(283):     ... 11 more
06-06 16:09:02.905: WARN/ActivityManager(58):   Force finishing activity prova.TabDemo/.TabDemo
06-06 16:09:03.415: WARN/ActivityManager(58): Activity pause timeout for HistoryRecord{4509efc0 prova.TabDemo/.TabDemo}

[zon]

devi usare gli infilater x definire le viste...

TabHost mTabHost = getTabHost();<br /> <br /> LayoutInflater.f<span class="forTooltip">rom</span>(this).inflate(R.layout.viewxml, mTabHost.getTabContentView(), true);<br /> mTabHost.addTab(mTabHost.newTabSpec("tab_test1").setIndicator("Cartellino").setContent(R.id.viewxml));<br /> setBackgr(R.id.view)<br /> <br /> LayoutInflater.f<span class="forTooltip">rom</span>(this).inflate(R.layout.viewxml2, mTabHost.getTabContentView(), true);<br /> mTabHost.addTab(mTabHost.newTabSpec("tab_test2").setIndicator("Incassati").setContent(R.id.view2));

8

 

1

TabHost mTabHost = getTabHost();

2

​

3

        LayoutInflater.from(this).inflate(R.layout.viewxml, mTabHost.getTabContentView(), true);

4

        mTabHost.addTab(mTabHost.newTabSpec("tab_test1").setIndicator("Cartellino").setContent(R.id.viewxml));

5

        setBackgr(R.id.view)

6

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LayoutInflater.from(this).inflate(R.layout.viewxml2, mTabHost.getTabContentView(), true);

8

        mTabHost.addTab(mTabHost.newTabSpec("tab_test2").setIndicator("Incassati").setContent(R.id.view2));

dove R.layout.viewxml è il file xml dove hai definito il layout del primo tab, e R.id.view è l'id del layout da includere definito dentro a R.layout.viewxml.xml e con il toggle android:id="@+id/view

1

 

1

android:id="@+id/view

...
stessa cosa è la spiegazione per il secondo tab...

[anearion]

grazie per la risposta, ma è una discussione di 5 mesi fa, se non avevo risolto m'ero sparato