problema listview

[hackme]

mi potete dire dove sta l'errore ... ho due tabwidget e quando clicco sulla prima nessun problema ma quando clicco sulla seconda (dove c'è la listview) mi dice errore inaspettato force close

ANote.java

package com.hackme.AN<span class="forTooltip">ot</span>e;<br /> <br /> import android.app.AlertDialog;<br /> import android.app.TabActivity;<br /> import android.content.DialogInterface;<br /> import android.content.Intent;<br /> import android.os.Bundle;<br /> import android.text.Editable;<br /> import android.view.Menu;<br /> import android.view.MenuItem;<br /> import android.widget.ArrayAdapter;<br /> import android.widget.Button;<br /> import android.widget.EditText;<br /> import android.widget.ListView;<br /> import android.widget.TabHost;<br /> import android.widget.Toast;<br /> import android.widget.TabHost.TabSpec;<br /> import android.widget.ViewFlipper;<br /> <br /> public class AN<span class="forTooltip">ot</span>e exten<span class="forTooltip">ds</span> TabActivity {<br /> <br /> Button BottoneSalva,BottoneClear;<br /> EditText Text1;<br /> ListView list;<br /> <br /> public void onCreate(Bundle savedInstanceState) {<br /> super.onCreate(savedInstanceState);<br /> setContentView(R.layout.main);<br /> Text1 = (EditText)findViewById(R.id.Text1);<br /> <br /> TabHost mTabHost = getTabHost();<br /> <br /> TabSpec NewNoteTab = mTabHost.newTabSpec("tag1");<br /> TabSpec ListNoteTab = mTabHost.newTabSpec("tag2");<br /> <br /> NewNoteTab.setIndicator("New Note");<br /> NewNoteTab.setContent(R.id.Text1);<br /> ListNoteTab.setIndicator("Note list");<br /> ListNoteTab.setContent(new Intent(this, ListView.class));<br /> <br /> mTabHost.addTab(NewNoteTab);<br /> mTabHost.addTab(ListNoteTab);<br /> mTabHost.setCurrentTab(0);<br /> <br /> <br /> }<br /> public boolean onCreate<span class="forTooltip">Op</span>tionsMenu(Menu menu) {<br /> super.onCreate<span class="forTooltip">Op</span>tionsMenu(menu);<br /> menu.add(0, 0, 1, "save ").setIcon(R.drawable.add);<br /> menu.add(0 , 1, 2, "clear ").setIcon(R.drawable.clear);<br /> return true;<br /> }<br /> <br /> public boolean onOptionsItemSelected(MenuItem item) {<br /> switch (item.getItemId()) {<br /> case 0:<br /> AlertDialog.Builder alert = new AlertDialog.Builder(this);<br /> <br /> alert.setTitle("save new note!");<br /> alert.setMessage("name of note:");<br /> <br /> final EditText input = new EditText(this);<br /> alert.setView(input);<br /> <br /> alert.setPositiveButton("Ok", new DialogInterface.OnClickListener() {<br /> public void onClick(DialogInterface dialog, int whichButton) {<br /> String value = input.getText().toString();<br /> Toast.makeText(ANote.this, "salvato", Toast.LENGTH_LONG).show();<br /> }<br /> });<br /> alert.setNegativeButton("Cancel", new DialogInterface.OnClickListener() {<br /> public void onClick(DialogInterface dialog, int whichButton) {<br /> Toast.makeText(ANote.this, "annullato", Toast.LENGTH_LONG).show();<br /> <br /> }<br /> });<br /> <br /> alert.show();<br /> <br /> break;<br /> case 1:<br /> Text1.setText("");<br /> <br /> break;<br /> }<br /> return true;<br /> }<br /> }

​x

 

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package com.hackme.ANote;

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​

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import android.app.AlertDialog;

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import android.app.TabActivity;

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import android.content.DialogInterface;

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import android.content.Intent;

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import android.os.Bundle;

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import android.text.Editable;

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import android.view.Menu;

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import android.view.MenuItem;

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import android.widget.ArrayAdapter;

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import android.widget.Button;

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import android.widget.EditText;

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import android.widget.ListView;

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import android.widget.TabHost;

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import android.widget.Toast;

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import android.widget.TabHost.TabSpec;

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import android.widget.ViewFlipper;

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​

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public class ANote extends TabActivity {

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    Button BottoneSalva,BottoneClear;

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    EditText Text1;

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     ListView list;

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    public void onCreate(Bundle savedInstanceState) {

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        super.onCreate(savedInstanceState);

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         setContentView(R.layout.main);

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        Text1 = (EditText)findViewById(R.id.Text1);

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         TabHost mTabHost = getTabHost();

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           TabSpec NewNoteTab = mTabHost.newTabSpec("tag1");

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            TabSpec ListNoteTab = mTabHost.newTabSpec("tag2");

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            NewNoteTab.setIndicator("New Note");

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            NewNoteTab.setContent(R.id.Text1);

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            ListNoteTab.setIndicator("Note list");

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            ListNoteTab.setContent(new Intent(this, ListView.class));

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            mTabHost.addTab(NewNoteTab);

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            mTabHost.addTab(ListNoteTab);

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        mTabHost.setCurrentTab(0);

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    }

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    public boolean onCreateOptionsMenu(Menu menu) {

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         super.onCreateOptionsMenu(menu);

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         menu.add(0, 0, 1, "save  ").setIcon(R.drawable.add);

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         menu.add(0 , 1, 2, "clear ").setIcon(R.drawable.clear);

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        return true;

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        }

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    public boolean onOptionsItemSelected(MenuItem item) {

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        switch (item.getItemId()) {

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        case 0:

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            AlertDialog.Builder alert = new AlertDialog.Builder(this);

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​

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            alert.setTitle("save new note!");

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            alert.setMessage("name of note:");

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​

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            final EditText input = new EditText(this);

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            alert.setView(input);

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​

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            alert.setPositiveButton("Ok", new DialogInterface.OnClickListener() {

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            public void onClick(DialogInterface dialog, int whichButton) {

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              String value = input.getText().toString();

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                Toast.makeText(ANote.this, "salvato", Toast.LENGTH_LONG).show();

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              }

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            });

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            alert.setNegativeButton("Cancel", new DialogInterface.OnClickListener() {

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              public void onClick(DialogInterface dialog, int whichButton) {

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                    Toast.makeText(ANote.this, "annullato", Toast.LENGTH_LONG).show();

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​

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              }

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            });

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​

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            alert.show();

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        break;

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        case 1:

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            Text1.setText("");

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​

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        break;

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        }

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        return true;

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        }

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}

ListView.java
package com.hackme.ANote;<br /> <br /> import android.app.ListActivity;<br /> import android.os.Bundle;<br /> import android.view.View;<br /> import android.widget.AdapterView;<br /> import android.widget.AdapterView.OnItemClickListener;<br /> import android.widget.ArrayAdapter;<br /> <br /> public class ListView extends ListActivity {<br /> <br /> <br /> <br /> public void onCreate(Bundle savedInstanceState) {<br /> super.onCreate(savedInstanceState);<br /> <br /> <br /> setListAdapter(new ArrayAdapter<String>(this,R.layout.list_item, ListNoteItem));<br /> <br /> android.widget.ListView lv = getListView();<br /> lv.setTextFilterEnabled(true);<br /> <br /> lv.setOnItemClickListener(new OnItemClickListener() {<br /> public void onItemClick(AdapterView<?> parent, View view,int position, long id) {<br /> <br /> }<br /> });<br /> }<br /> static final String[] ListNoteItem = new String[] {"ANote.Prova1","ANote.Prova2","ANote.Prova3"};<br /> }

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package com.hackme.ANote;

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​

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import android.app.ListActivity;

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import android.os.Bundle;

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import android.view.View;

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import android.widget.AdapterView;

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import android.widget.AdapterView.OnItemClickListener;

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import android.widget.ArrayAdapter;

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​

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public class ListView extends ListActivity {

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​

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​

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    public void onCreate(Bundle savedInstanceState) {

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          super.onCreate(savedInstanceState);

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          setListAdapter(new ArrayAdapter<String>(this,R.layout.list_item, ListNoteItem));

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​

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         android.widget.ListView lv = getListView();

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          lv.setTextFilterEnabled(true);

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​

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          lv.setOnItemClickListener(new OnItemClickListener() {

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                public void onItemClick(AdapterView<?> parent, View view,int position, long id) {

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                }

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              });

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    }

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    static final String[] ListNoteItem = new String[] {"ANote.Prova1","ANote.Prova2","ANote.Prova3"};

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}

list_item.xml

<?xml version="1.0" encoding="utf-8"?><br /> <TextView xmlns:android="http://schemas.android.com/<span class="forTooltip">apk</span>/res/android"<br /> android:layout_width="fill_parent"<br /> android:layout_height="fill_parent"<br /> android:padding="14dp"<br /> android:textSize="16sp" ><br /> </TextView><br />

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

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<TextView xmlns:android="http://schemas.android.com/apk/res/android"

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    android:layout_width="fill_parent"

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    android:layout_height="fill_parent"

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    android:padding="14dp"

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    android:textSize="16sp" >

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</TextView>

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​

manifest:

<?xml version="1.0" encoding="utf-8"?><br /> <manifest xmlns:android="http://schemas.android.com/apk/res/android"<br /> package="com.hackme.ANote"<br /> android:versionCode="1"<br /> android:versionName="1.0 Alpha"><br /> <uses-sdk android:minSdkVersion="7" /><br /> <br /> <application android:icon="@drawable/icon" android:label="@string/app_name"><br /> <activity android:name=".ANote"<br /> android:label="@string/app_name"><br /> <intent-filter><br /> <action android:name="android.intent.action.MAIN" /><br /> <category android:name="android.intent.category.<span class="forTooltip">LAUNCHER</span>" /><br /> </intent-filter><br /> </activity><br /> <activity android:name=".list_item"<br /> android:label="@string/app_name"> <br /> </activity><br /> </application><br /> </manifest>

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

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<manifest xmlns:android="http://schemas.android.com/apk/res/android"

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      package="com.hackme.ANote"

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      android:versionCode="1"

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      android:versionName="1.0 Alpha">

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    <uses-sdk android:minSdkVersion="7" />

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​

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    <application android:icon="@drawable/icon" android:label="@string/app_name">

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        <activity android:name=".ANote"

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                  android:label="@string/app_name">

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            <intent-filter>

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                <action android:name="android.intent.action.MAIN" />

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                <category android:name="android.intent.category.LAUNCHER" />

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            </intent-filter>

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        </activity>

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        <activity  android:name=".list_item"

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                      android:label="@string/app_name">         

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            </activity>

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    </application>

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</manifest>

[Andrea]

Se fornissi l'errore sarebbe di certo meglio

[hackme]

Mi parte il programma ma quando clicco sul secondo tab widget mi dice : the application ANote (process com.hackme.ANote) has stopped unexpectedly. Please try again force close


if you really want something you can have it!

[Andrea]

ok riformulo la domanda ....Come faccio a inserire più componenti in una sola tab???

esempio tab1 c'è 1 EditText e 3 button

mi date il codice please... non lo trovo su internet

Ti conviene passare il logcat per l errorr


Inviato dal mio Nexus S usando Androidiani App

[hackme]

ecco mio fratello mi ha cancellato anche il progetto!!
mi tocca rifarlo!! sentite non avete un buon tutorial per listview???

[Andrea]

ecco mio fratello mi ha cancellato anche il progetto!!
mi tocca rifarlo!! sentite non avete un buon tutorial per listview???

È pieno. Basta che googli un po


Inviato dal mio Nexus S usando Androidiani App