0

私の活動では、TabHost.

3 つのタブと 3 つのアクティビティがあります。タブをクリックしたときに対応するアクティビティを開始するにはどうすればよいですか?

現在、3つの活動すべてが開始されています...

このコードを実行すると、すべてのアクティビティ ( connected_upload、connected_download、connected_search) が " onCreate" メソッドを実行します。

これらのアクティビティを手動で開始するにはどうすればよいですか? つまり、対応するタブをクリックしたときにのみアクティビティを開始したいということです...

public class connected extends TabActivity {
    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.connected);

        Resources res = getResources(); // Resource object to get Drawables   
        TabHost tabHost = getTabHost();  // The activity TabHost  
        TabHost.TabSpec spec;  // Resusable TabSpec for each tab    
        Intent intent;  // Reusable Intent for each tab   

        intent = new Intent().setClass(this, connected_upload.class);      
        spec = tabHost.newTabSpec("Hoch").setIndicator("Hoch",res.getDrawable(R.drawable.freeftp)).setContent(intent); 
        tabHost.addTab(spec);   

        intent = new Intent().setClass(this, connected_download.class); 
        String str_path = getIntent().getStringExtra("path");
        String str_profil = getIntent().getStringExtra("profil");
        String str_server = getIntent().getStringExtra("server");
        String str_port = getIntent().getStringExtra("port");
        String str_user = getIntent().getStringExtra("user");
        String str_password = getIntent().getStringExtra("pw");

        intent.putExtra("path", str_path);
        intent.putExtra("profil", str_profil);
        intent.putExtra("server", str_server);
        intent.putExtra("port", str_port);
        intent.putExtra("user", str_user);
        intent.putExtra("pw", str_password);

        spec = tabHost.newTabSpec("Herunter").setIndicator("Herunter",res.getDrawable(R.drawable.freeftp)).setContent(intent); 
        tabHost.addTab(spec); 

        intent = new Intent().setClass(this, connected_search.class); 
        spec = tabHost.newTabSpec("Search").setIndicator("Search",res.getDrawable(R.drawable.freeftp)).setContent(intent); 
        tabHost.addTab(spec);

        tabHost.setCurrentTab(1);

        //Button Connect Server
        Button cmd_mainsite = (Button)findViewById(R.id.but_connected_mainsite);
        cmd_mainsite.setOnClickListener(new View.OnClickListener(){         
            public void onClick(View v){
                finish();
                Intent Intent_mainsite = new Intent(connected.this, Login.class);
                startActivity(Intent_mainsite); 
            }       
        });

    }
}
4

3 に答える 3

2

あなたの要件に従ってこのコードを使用してください

MainActivity.java

public class MainActivity extends TabActivity {


                        @Override
                        public void onCreate(Bundle savedInstanceState) {
                            super.onCreate(savedInstanceState);
                            setContentView(R.layout.main);

                           Resources res = getResources();
                            TabHost th = getTabHost();

                            th.addTab(th.newTabSpec("").setIndicator("tab1",
                                    res.getDrawable(R.drawable.icon)).
                                    setContent(new Intent(this, firsttab.class)));
                            th.addTab(th.newTabSpec("").setIndicator("tab2")
                                    .setContent(new Intent(this, secondtab.class)));
                            th.addTab(th.newTabSpec("").setIndicator("tab3")
                                    .setContent(new Intent(this, thirdtab.class)));

    th.setCurrentTab(1);
                }
                }

main.xml

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

    <TabHost xmlns:android="http://schemas.android.com/apk/res/android"
        android:id="@android:id/tabhost" 
        android:layout_width="match_parent"
        android:layout_height="match_parent">
            <LinearLayout 
            android:layout_width="match_parent" 
            android:id="@+id/linearLayout1" 
            android:layout_height="match_parent" 
            android:orientation="vertical">

                <FrameLayout 
                android:layout_width="match_parent"
                 android:layout_height="match_parent" 
                 android:id="@android:id/tabcontent"
                 android:layout_weight="1">

                </FrameLayout>
                 <TabWidget 
                android:layout_width="match_parent" 
                android:layout_height="wrap_content" 
                android:id="@android:id/tabs">
                </TabWidget>
            </LinearLayout>
        </TabHost>

firsttab.java

public class firsttab extends Activity {

        /** Called when the activity is first created. */
        @Override
        public void onCreate(Bundle savedInstanceState) {
            super.onCreate(savedInstanceState);

            // TODO Auto-generated method stub
            TextView tv = new TextView(this);
            tv.setText("HI");
            tv.setTextSize(25);
            setContentView(tv);
        }

    }

セカンドタブ.java

public class secondtab extends Activity {

    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);

        // TODO Auto-generated method stub
        TextView tv = new TextView(this);
        tv.setText("Hello");
        tv.setTextSize(25);
        setContentView(tv);
    }

}

thirdtab.java

public class thirdtab extends Activity {

        /** Called when the activity is first created. */
        @Override
        public void onCreate(Bundle savedInstanceState) {
            super.onCreate(savedInstanceState);

            // TODO Auto-generated method stub
            TextView tv = new TextView(this);
            tv.setText("How Are U?");
            tv.setTextSize(25);
            setContentView(tv);
        }

    }
于 2012-12-24T08:28:13.863 に答える
0

特定のタブをクリックして開いているアクティビティのコードを以下に記述します。それに関する質問がある場合は、教えてください。

TabActivity.java：-

public class TabActivity extends TabActivity {
    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.tab_screen);
        TabHost tabHost = getTabHost();

        Intent intent = new Intent().setClass(this, ActivityStack.class);
        TabHost.TabSpec spec = tabHost.newTabSpec("tabId").setIndicator("Temp", getResources().getDrawable(R.drawable.home));
        spec.setContent(intent);

        tabHost.addTab(spec);

        Intent intent1 = new Intent().setClass(this, ActivityStack.class);
        TabHost.TabSpec spec1 = tabHost.newTabSpec("tabId").setIndicator("Temp", getResources().getDrawable(R.drawable.invoice));
        spec1.setContent(intent1);

        tabHost.addTab(spec1);

        tabHost.setCurrentTab(0);
    }
}
于 2012-12-21T07:30:23.867 に答える
0 
public class connected extends TabActivity {
    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.connected);

        Resources res = getResources(); // Resource object to get Drawables   
        TabHost tabHost = getTabHost();  // The activity TabHost  
TabSpec spec1= tabHost.newTabSpec("")
                .setIndicator("Hoch",res.getDrawable(R.drawable.freeftp))
                .setContent(new Intent(this, connected_upload.class));
        tabHost.addTab(spec1);

        TabSpec spec2 = tabHost.newTabSpec("")
                .setIndicator("Herunter",res.getDrawable(R.drawable.freeftp))
                .setContent(new Intent(this, connected_download.class));



        String str_path = getIntent().getStringExtra("path");
        String str_profil = getIntent().getStringExtra("profil");
        String str_server = getIntent().getStringExtra("server");
        String str_port = getIntent().getStringExtra("port");
        String str_user = getIntent().getStringExtra("user");
        String str_password = getIntent().getStringExtra("pw");

        intent.putExtra("path", str_path);
        intent.putExtra("profil", str_profil);
        intent.putExtra("server", str_server);
        intent.putExtra("port", str_port);
        intent.putExtra("user", str_user);
        intent.putExtra("pw", str_password);

        tabHost.addTab(spec2);

    TabSpec spec3= tabHost.newTabSpec("")
                .setIndicator("Search",res.getDrawable(R.drawable.freeftp))
                .setContent(new Intent(this, connected_search.class));
        tabHost.addTab(spec3);

      tabHost.setCurrentTab(1);

        //Button Connect Server
        Button cmd_mainsite = (Button)findViewById(R.id.but_connected_mainsite);
        cmd_mainsite.setOnClickListener(new View.OnClickListener(){         
            public void onClick(View v){
                finish();
                Intent Intent_mainsite = new Intent(connected.this, Login.class);
                startActivity(Intent_mainsite); 
            }       
        });

    }
}
于 2012-12-21T08:17:50.523 に答える