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嗨，我需要幫助，我正在做，需要有一個按鈕，單擊它時打開AllApps.class活動女巫的啓動與啓動按鈕點擊一個活動顯示所有已安裝的應用程序的列表使用FragmentActivity
其他按鈕需要打開一個安裝的應用程序是設備
和最後一個按鈕就需要打開默認的Web瀏覽器並打開google.com
這裏是我的代碼！
Home.java：
package com.dva.schooltoolshome;
import java.util.Locale;
import android.app.ActionBar;
import android.app.FragmentTransaction;
import android.content.Intent;
import android.net.Uri;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentActivity;
import android.support.v4.app.FragmentManager;
import android.support.v4.app.FragmentPagerAdapter;
import android.support.v4.view.ViewPager;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ImageButton;
import android.widget.TextView;
public class Home extends FragmentActivity implements ActionBar.TabListener {
SectionsPagerAdapter mSectionsPagerAdapter;
ViewPager mViewPager;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_home);
final ActionBar actionBar = getActionBar();
actionBar.setNavigationMode(ActionBar.NAVIGATION_MODE_TABS);
actionBar.setDisplayShowHomeEnabled(false);
actionBar.setDisplayOptions(actionBar.getDisplayOptions()
^ActionBar.DISPLAY_SHOW_TITLE);
mSectionsPagerAdapter = new SectionsPagerAdapter(
getSupportFragmentManager());
mViewPager = (ViewPager) findViewById(R.id.pager);
mViewPager.setAdapter(mSectionsPagerAdapter);
mViewPager
.setOnPageChangeListener(new ViewPager.SimpleOnPageChangeListener() {
@Override
public void onPageSelected(int position) {
actionBar.setSelectedNavigationItem(position);
}
});
for (int i = 0; i < mSectionsPagerAdapter.getCount(); i++) {
if (mSectionsPagerAdapter.getPageTitle(i).toString()
.equalsIgnoreCase("calc")) {
actionBar.addTab(actionBar.newTab()
.setIcon(R.drawable.calendar)
.setTabListener(this));
} else if (mSectionsPagerAdapter.getPageTitle(i).toString()
.equalsIgnoreCase("home")) {
actionBar.addTab(actionBar.newTab().setIcon(R.drawable.home)
.setTabListener(this));
} else if (mSectionsPagerAdapter.getPageTitle(i).toString()
.equalsIgnoreCase("drive")) {
actionBar.addTab(actionBar.newTab().setIcon(R.drawable.folder)
.setTabListener(this));
}
}
mViewPager.setCurrentItem(1);
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.home, menu);
return true;
}
@Override
public void onTabSelected(ActionBar.Tab tab,
FragmentTransaction fragmentTransaction) {
mViewPager.setCurrentItem(tab.getPosition());
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()) {
case R.id.action_settings:
startActivity(new Intent(android.provider.Settings.ACTION_APPLICATION_SETTINGS));
return true;
default:
return super.onOptionsItemSelected(item);
}
}
@Override
public void onTabUnselected(ActionBar.Tab tab,
FragmentTransaction fragmentTransaction) {
}
@Override
public void onTabReselected(ActionBar.Tab tab,
FragmentTransaction fragmentTransaction) {
}
public class SectionsPagerAdapter extends FragmentPagerAdapter {
public SectionsPagerAdapter(FragmentManager fm) {
super(fm);
}
@Override
public Fragment getItem(int position) {
Fragment fragment = null;
switch (position) {
case 0:
fragment = new CalcFragment();
break;
case 1:
fragment = new HomeFragment();
break;
case 2:
fragment = new DriveFragment();
break;
}
return fragment;
}
@Override
public int getCount() {
return 3;
}
@Override
public CharSequence getPageTitle(int position) {
Locale l = Locale.getDefault();
switch (position) {
case 0:
return getString(R.string.title_section1).toUpperCase(l);
case 1:
return getString(R.string.title_section2).toUpperCase(l);
case 2:
return getString(R.string.title_section3).toUpperCase(l);
}
return null;
}
}
public static class HomeFragment extends Fragment {
public static final String ARG_SECTION_NUMBER = "section_number";
public HomeFragment() {
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.activity_homebar,
container, false);
return rootView;
}
}
public static class CalcFragment extends Fragment {
public static final String ARG_SECTION_NUMBER = "section_number";
public CalcFragment() {
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.activity_calculator,
container, false);
return rootView;
}
}
public static class DriveFragment extends Fragment {
public static final String ARG_SECTION_NUMBER = "section_number";
public DriveFragment() {
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.fragment_home_dummy,
container, false);
TextView dummyTextView = (TextView) rootView
.findViewById(R.id.section_label);
dummyTextView.setText("DRIVE");
return rootView;
}
}
}
activity_homebar
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="@drawable/bg"
android:paddingBottom="@dimen/activity_vertical_margin"
android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin"
tools:context=".HomeBar" >
<ImageButton
android:id="@+id/apps"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_alignParentRight="true"
android:background="@drawable/appdrawer"
android:src="@drawable/appdrawer" />
<ImageButton
android:id="@+id/wbrowser"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_alignTop="@+id/apps"
android:src="@drawable/browser" />
</RelativeLayout>
AllApps.java：
package com.dva.schooltoolshome;
import android.app.LauncherActivity;
import android.content.Intent;
public class AllApps extends LauncherActivity {
@Override
protected Intent getTargetIntent() {
// just a example, you should replace the method yourself
Intent intent = new Intent();
intent.setAction(Intent.ACTION_MAIN);
intent.addCategory(Intent.CATEGORY_LAUNCHER);
intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
return intent;
}
}
我還在學習，所以請不要判斷
在此先感謝
個問候
Rapsong11
什麼問題？ – codeMagic
@codeMagic我需要一個按鈕，當它點擊它打開allapps.java類 – rapsong11
好吧，你堅持哪部分？你創建了「Button」嗎？您是否嘗試添加功能？ – codeMagic