Android知识点九(ViewPager + Fragment 实现底部菜单栏)
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1.common_title_layout.xml（头部）
<?xml version="1.0" encoding="utf-8"?><RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:layout_height="@dimen/common_title_bar_height" android:background="#FA3E63" > <ImageButton android:id="@+id/left_ib" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_alignParentLeft="true" android:layout_centerVertical="true" android:layout_marginLeft="10dp" android:background="@android:color/transparent" android:padding="5dp" android:src="@drawable/com_return" /> <TextView android:id="@+id/middle_title_tv" android:layout_width="match_parent" android:layout_height="wrap_content" android:layout_centerVertical="true" android:background="@android:color/transparent" android:ellipsize="end" android:gravity="center_horizontal" android:maxEms="10" android:padding="5dp" android:singleLine="true" android:text="测试1" android:textColor="#FFFF" android:textSize="@dimen/common_title_size" android:textStyle="bold" /></RelativeLayout>2.activity_main.xml(主页布局)
<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="@android:color/white" > <include android:id="@+id/common_title_bar" android:layout_width="match_parent" android:layout_height="@dimen/common_title_bar_height" android:layout_alignParentTop="true" layout="@layout/common_title_layout" /> <LinearLayout android:id="@+id/bottom_guide_layout" android:layout_width="match_parent" android:layout_height="60dp" android:layout_alignParentBottom="true" android:baselineAligned="false" android:orientation="horizontal" > <!-- 测试1--> <LinearLayout android:id="@+id/heart_word_item" android:layout_width="0dp" android:layout_height="wrap_content" android:layout_weight="1" android:gravity="center" android:orientation="vertical" android:padding="3dp" > <ImageView android:id="@+id/heart_word_iv" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_gravity="center_horizontal" android:src="@drawable/main_heart_word_selector" /> <TextView android:id="@+id/heart_word_tv" android:layout_width="match_parent" android:layout_height="wrap_content" android:gravity="center_horizontal" android:text="@string/heart_word" android:textColor="@drawable/main_guide_text_color_selector" android:textSize="@dimen/common_text_size" /> </LinearLayout> <!-- 测试2--> <LinearLayout android:id="@+id/record_item" android:layout_width="0dp" android:layout_height="wrap_content" android:layout_weight="1" android:gravity="center" android:orientation="vertical" android:padding="3dp" > <ImageView android:id="@+id/record_iv" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_gravity="center_horizontal" android:src="@drawable/main_recored_selector" /> <TextView android:id="@+id/record_tv" android:layout_width="match_parent" android:layout_height="wrap_content" android:gravity="center_horizontal" android:text="@string/record" android:textColor="@drawable/main_guide_text_color_selector" android:textSize="@dimen/common_text_size" /> </LinearLayout> <!-- 测试3--> <LinearLayout android:id="@+id/paradise_item" android:layout_width="0dp" android:layout_height="wrap_content" android:layout_weight="1" android:gravity="center" android:orientation="vertical" android:padding="3dp" > <ImageView android:id="@+id/paradise_iv" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_gravity="center_horizontal" android:src="@drawable/main_paradise_selector" /> <TextView android:id="@+id/paradise_tv" android:layout_width="match_parent" android:layout_height="wrap_content" android:gravity="center_horizontal" android:text="@string/paradise" android:textColor="@drawable/main_guide_text_color_selector" android:textSize="@dimen/common_text_size" /> </LinearLayout> <!-- 测试4--> <LinearLayout android:id="@+id/discover_item" android:layout_width="0dp" android:layout_height="wrap_content" android:layout_weight="1" android:gravity="center" android:orientation="vertical" android:padding="3dp" > <ImageView android:id="@+id/discover_iv" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_gravity="center_horizontal" android:src="@drawable/main_discover_selector" /> <TextView android:id="@+id/discover_tv" android:layout_width="match_parent" android:layout_height="wrap_content" android:gravity="center_horizontal" android:text="@string/discover" android:textColor="@drawable/main_guide_text_color_selector" android:textSize="@dimen/common_text_size" /> </LinearLayout> <!-- 测试5--> <LinearLayout android:id="@+id/setting_item" android:layout_width="0dp" android:layout_height="wrap_content" android:layout_weight="1" android:gravity="center" android:orientation="vertical" android:padding="3dp" > <ImageView android:id="@+id/setting_iv" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_gravity="center_horizontal" android:src="@drawable/main_setting_selector" /> <TextView android:id="@+id/setting_tv" android:layout_width="match_parent" android:layout_height="wrap_content" android:gravity="center_horizontal" android:text="@string/setting" android:textColor="@drawable/main_guide_text_color_selector" android:textSize="@dimen/common_text_size" /> </LinearLayout> </LinearLayout> <View android:id="@+id/line" android:layout_width="match_parent" android:layout_height="1px" android:layout_above="@id/bottom_guide_layout" android:background="@color/record_line_color" /> <android.support.v4.view.ViewPager android:id="@+id/content_pager" android:layout_width="match_parent" android:layout_height="match_parent" android:layout_above="@id/line" android:layout_below="@id/common_title_bar" android:fadingEdge="none" android:overScrollMode="never" > </android.support.v4.view.ViewPager></RelativeLayout>3.MainActivity.java(启动页面)
public class MainActivity extends FragmentActivity {private View mHeartWordView, mRecordView, mParadiseView, mDiscoverView,mSettingView;private ImageView mHeartWordIV, mRecordIV, mParadiseIV, mDiscoverIV,mSettingIV;private TextView mTitleTV, mHeartWordTV, mRecordTV, mParadiseTV,mDiscoverTV, mSettingTV;private FragmentManager mFragmentManager;private HeartWordFragment mWordFragment;private DiscoverFragment mDiscoverFragment;private RecordFragment mRecordFragment;private SettingFragment mSettingFragment;private ParadiseFragment mParadiseFragment;private ArrayList<Fragment> mFragmentList;private ViewPager mainPager;@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.activity_main);initView();}private void initView() {BottomItemOnClickListener mClickListener = new BottomItemOnClickListener();mTitleTV = (TextView) findViewById(R.id.middle_title_tv);mHeartWordView = findViewById(R.id.heart_word_item);mHeartWordIV = (ImageView) findViewById(R.id.heart_word_iv);mHeartWordTV = (TextView) findViewById(R.id.heart_word_tv);mRecordView = findViewById(R.id.record_item);mRecordIV = (ImageView) findViewById(R.id.record_iv);mRecordTV = (TextView) findViewById(R.id.record_tv);mParadiseView = findViewById(R.id.paradise_item);mParadiseIV = (ImageView) findViewById(R.id.paradise_iv);mParadiseTV = (TextView) findViewById(R.id.paradise_tv);mDiscoverView = findViewById(R.id.discover_item);mDiscoverIV = (ImageView) findViewById(R.id.discover_iv);mDiscoverTV = (TextView) findViewById(R.id.discover_tv);mSettingView = findViewById(R.id.setting_item);mSettingIV = (ImageView) findViewById(R.id.setting_iv);mSettingTV = (TextView) findViewById(R.id.setting_tv);mHeartWordView.setOnClickListener(mClickListener);mRecordView.setOnClickListener(mClickListener);mParadiseView.setOnClickListener(mClickListener);mDiscoverView.setOnClickListener(mClickListener);mSettingView.setOnClickListener(mClickListener);mFragmentManager = getSupportFragmentManager();mWordFragment = new HeartWordFragment();mDiscoverFragment = new DiscoverFragment();mRecordFragment = new RecordFragment();mParadiseFragment = new ParadiseFragment();mSettingFragment = new SettingFragment();mFragmentList = new ArrayList<Fragment>();mFragmentList.add(mWordFragment);mFragmentList.add(mRecordFragment);mFragmentList.add(mParadiseFragment);mFragmentList.add(mDiscoverFragment);mFragmentList.add(mSettingFragment);mainPager = (ViewPager) findViewById(R.id.content_pager);mainPager.setAdapter(new MainPagerAdapter(mFragmentManager));// 初始化mainPager.setCurrentItem(0);updataBottomStatu(0);/** * 若禁止ViewPager滑动可以自定义ViewPager重写scrollTo方法 */mainPager.setOnPageChangeListener(new ViewPager.OnPageChangeListener() {@Overridepublic void onPageSelected(int position) {updataBottomStatu(position);}@Overridepublic void onPageScrolled(int arg0, float arg1, int arg2) {}@Overridepublic void onPageScrollStateChanged(int arg0) {}});}protected class BottomItemOnClickListener implements OnClickListener {@Overridepublic void onClick(View v) {switch (v.getId()) {case R.id.heart_word_item: {mainPager.setCurrentItem(0);updataBottomStatu(0);}break;case R.id.record_item: {mainPager.setCurrentItem(1);updataBottomStatu(1);}break;case R.id.paradise_item: {mainPager.setCurrentItem(2);updataBottomStatu(2);}break;case R.id.discover_item: {mainPager.setCurrentItem(3);updataBottomStatu(3);}break;case R.id.setting_item: {mainPager.setCurrentItem(4);updataBottomStatu(4);}break;}}}private void setHeartWord(boolean isSelect) {mHeartWordView.setSelected(isSelect);mHeartWordIV.setSelected(isSelect);mHeartWordTV.setSelected(isSelect);}private void setRecord(boolean isSelect) {mRecordView.setSelected(isSelect);mRecordIV.setSelected(isSelect);mRecordTV.setSelected(isSelect);}private void setParadise(boolean isSelect) {mParadiseView.setSelected(isSelect);mParadiseIV.setSelected(isSelect);mParadiseTV.setSelected(isSelect);}private void setDiscover(boolean isSelect) {mDiscoverView.setSelected(isSelect);mDiscoverIV.setSelected(isSelect);mDiscoverTV.setSelected(isSelect);}private void setSetting(boolean isSelect) {mSettingView.setSelected(isSelect);mSettingIV.setSelected(isSelect);mSettingTV.setSelected(isSelect);}private void updataBottomStatu(int index) {switch (index) {case 0:if (!mHeartWordView.isSelected()) {setTitle(R.string.angle_word);setHeartWord(true);setRecord(false);setParadise(false);setDiscover(false);setSetting(false);}break;case 1:if (!mRecordView.isSelected()) {setTitle(R.string.record);setHeartWord(false);setRecord(true);setParadise(false);setDiscover(false);setSetting(false);}break;case 2:if (!mParadiseView.isSelected()) {setTitle(R.string.paradise);setHeartWord(false);setRecord(false);setParadise(true);setDiscover(false);setSetting(false);}break;case 3:if (!mDiscoverView.isSelected()) {setTitle(R.string.discover);setHeartWord(false);setRecord(false);setParadise(false);setDiscover(true);setSetting(false);}break;case 4:if (!mSettingView.isSelected()) {setTitle(R.string.setting);setHeartWord(false);setRecord(false);setParadise(false);setDiscover(false);setSetting(true);}break;}}class MainPagerAdapter extends FragmentStatePagerAdapter {public MainPagerAdapter(FragmentManager fm) {super(fm);}@Overridepublic Fragment getItem(int arg0) {return mFragmentList.get(arg0);}@Overridepublic int getCount() {return mFragmentList == null ? 0 : mFragmentList.size();}@Overridepublic void destroyItem(ViewGroup container, int position, Object object) {}}public void setTitle(CharSequence title) {mTitleTV.setText(title);}public void setTitle(int resId) {mTitleTV.setText(getString(resId));}}4.HeartWordFragment.java(子界面)
public class HeartWordFragment extends Fragment {private View rootView;private TextView mytxt;@Overridepublic View onCreateView(LayoutInflater inflater, ViewGroup container,Bundle savedInstanceState) {rootView = inflater.inflate(R.layout.heart_word_layout, null);initViews();return rootView;}private void initViews() {MainActivity mainActivity = (MainActivity) getActivity();mainActivity.setTitle("测试2");mytxt = (TextView) rootView.findViewById(R.id.mytxt);mytxt.setOnClickListener(new OnClickListener() {@Overridepublic void onClick(View arg0) {Toast.makeText(getActivity(), "点击了文本", Toast.LENGTH_LONG).show();}});}}5.最后在给个drawable(main_heart_word_selector.xml)
<?xml version="1.0" encoding="utf-8"?><selector xmlns:android="http://schemas.android.com/apk/res/android"> <item android:drawable="@drawable/heart_select" android:state_selected="true"></item> <item android:drawable="@drawable/heart_normal"></item></selector>
6.效果
0 0
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