小编Sag*_*ada的帖子

只有在我开始在项目中使用片段后才会出现错误

这是我的代码..

public class MainActivity extends AppCompatActivity {

private Toolbar toolbar;
private ViewPager mPager;
private SlidingTabLayout mTabs;
private MyPagerAdapter adapter;

public static final int product_result = 0;

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);

    toolbar = (Toolbar) findViewById(R.id.app_bar);

    setSupportActionBar(toolbar);
    assert getSupportActionBar() != null;
    getSupportActionBar().setDisplayShowHomeEnabled(true);

    NavigationDrawerFragment navigationDrawerFragment = (NavigationDrawerFragment)
            getSupportFragmentManager().findFragmentById(R.id.fragment_nav_drawer);
    navigationDrawerFragment.setUp(R.id.fragment_nav_drawer, (DrawerLayout) findViewById(R.id.drawer_layout), toolbar);

    mPager = (ViewPager) findViewById(R.id.pager);
    adapter = new MyPagerAdapter(getSupportFragmentManager());
    mPager.setAdapter(adapter);

    mTabs = (SlidingTabLayout) findViewById(R.id.tabs);
    mTabs.setDistributeEvenly(true);
    mTabs.setCustomTabView(R.layout.custom_tab_view, R.id.tabText);
    int bgColor = ContextCompat.getColor(this, R.color.colorPrimary);
    mTabs.setBackgroundColor(bgColor);
    mTabs.setSelectedIndicatorColors(ContextCompat.getColor(MainActivity.this, R.color.colorAccent));
    mTabs.invalidate();
    mTabs.setViewPager(mPager); …

我正在实现卡片视图,但我找不到任何边框选项来设置它的边框.

这是我的card.xml:

<android.support.v7.widget.CardView android:layout_marginTop="10dp"
  android:id="@+id/cardView"
  android:layout_width="match_parent"
  android:layout_height="wrap_content"
  xmlns:android="http://schemas.android.com/apk/res/android"
  card_view:cardPreventCornerOverlap="false"
  app:cardPreventCornerOverlap="false"
  xmlns:card_view="http://schemas.android.com/tools"
  xmlns:app="http://schemas.android.com/apk/res-auto">

  <RelativeLayout
     android:background="@drawable/tab_bg"
     android:layout_width="match_parent"
     android:layout_height="wrap_content"
     android:padding="16dp">

     <TextView
         android:id="@+id/title"
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
         android:text="Title"
         android:textSize="20sp" />

  </RelativeLayout>

</android.support.v7.widget.CardView>

这是我的图像,我想在卡片视图上实现绿色边框？

帮我.我怎么能实现这个呢？我没有线索.

谢谢.

我有一个像这样的3字符串:

"@Username: Deliverd your order",
"YOU got trophy: KING OF COINS",
"There is a package waiting for you to pick up from #surat to #mumbai",

我想做的是通过点击事件获得不同颜色的用户名和城市名称.

能够实现的是通过分割为":"字符来获取用户名.但我不知道如何获得城市名称和点击两者的事件.

在城市名称中,只有最后一个城市颜色在变化,如何更改城市名称颜色并获取其点击事件.

这是我试过的:

if (notifications.getTitle().contains(":")) 
{
    String[] username = notifications.getTitle().split(":");
    String uname = getColoredSpanned(username[0] + ":", "#ff7505");
    String txt = getColoredSpanned(username[1], "#000000");
    holder.txtTitle.append(Html.fromHtml(uname +" " + txt));
    holder.txtTitle.setMovementMethod(LinkMovementMethod.getInstance());
} 
else if (notifications.getTitle().contains("#"))
{
     Matcher matcher = 
            Pattern.compile("#\\s(\\w+)").matcher(notifications.getTitle());
     i=0;
     while (matcher.find())
     {
           place.add(i, matcher.group(1));
           i++;
     }
     String place1 = getColoredSpanned("#" + place.get(0), "#237BCD");
     String place2 …

如何在React-native中的TextInput中实现@mention.

我已经尝试了这种反应本地提及但它不再维护了.有很多样式问题和回调问题.

我想要的是在textInput中显示这样的自定义视图.

点击列表后我想显示如下:

到目前为止,我能够实现:

当我在TextInput中键入'@'时,会出现用户列表.

当我点击用户时,我在TextInput中获得用户名

码

   renderSuggestionsRow() {
      return this.props.stackUsers.map((item, index) => {
         return (
            <TouchableOpacity key={`index-${index}`} onPress={() => this.onSuggestionTap(item.label)}>
               <View style={styles.suggestionsRowContainer}>
                  <View style={styles.userIconBox}>
                     <Text style={styles.usernameInitials}>{!!item.label && item.label.substring(0, 2).toUpperCase()}</Text>
                  </View>
                  <View style={styles.userDetailsBox}>
                     <Text style={styles.displayNameText}>{item.label}</Text>
                     <Text style={styles.usernameText}>@{item.label}</Text>
                  </View>
               </View>
            </TouchableOpacity>
         )
      });
   }

   onSuggestionTap(username) {
      this.setState({
         comment: this.state.comment.slice(0, this.state.comment.indexOf('@')) + '#'+username,
         active: false
      });
   }

   handleChatText(value) {
      if(value.includes('@')) {
         if(value.match(/@/g).length > 0) {
            this.setState({active: true});
         }
      } else {
         this.setState({active: false});
      }
      this.setState({comment: value});
   }
render() { …

我正在使用volly来完美地检索数据及其工作,除了我的json数组没有存储在缓存中.

这是我的代码:

private void getCacheValue() {
    Cache cache = AppController.getInstance().getRequestQueue().getCache();
    Cache.Entry entry = cache.get(Endpoints.product_url);


    if(entry != null){
        Log.w("Logdata:", ""+ entry.toString());
        try {
            String data = new String(entry.data, "UTF-8");
            JSONArray jsonArray = new JSONArray(data);

            // handle data, like converting it to xml, json, bitmap etc.,
            Log.v("Hello", data);
            listProduct.clear();
            for (int i = 0; i < jsonArray.length(); i++) {
                try {
                    JSONObject object = jsonArray.getJSONObject(i);
                    ItemCategories image = new ItemCategories();
                    image.setCategoryItem(object.getString(key_title));
                    image.setUrlThumb(object.getString(key_image));

                    listProduct.add(image);
                    } catch (JSONException e) {
                        Log.e(TAG, "Json parsing error: …

我在导航图中总共有12个片段..每个片段都有一个凌空方法.每个片段显示自己的凌空响应,除了position = 1和position = 5片段.

当我的应用程序启动

情形1: 我打开位置1片段,并且在打开位置5片段后,两个片段都具有位置1片段响应.

场景2:如果我打开位置5片段并且在打开位置1片段之后比两个片段都具有位置1片段响应.

场景1图像:

场景2图像:

我的片段事务方法类:

private void showFragment(Fragment fragment) {
    llContainer = (LinearLayout)findViewById(R.id.container);
    if (fragment != null) {
        llContainer.removeAllViewsInLayout();
        FragmentManager fragmentManager = getSupportFragmentManager();
        FragmentTransaction fragmentTransaction = fragmentManager.beginTransaction();
        fragmentTransaction.replace(R.id.container, fragment, fragment.getClass().getName());
        fragmentTransaction.commit();
        fragmentManager.popBackStack();
    }
}


@Override
public void onItemSelected(int position) {
    Fragment frag = null;
    switch (position) {
        case POS_HOME:
            frag = FragmentHome.instance(screenTitles[position]);
            break;
        case POS_INBOX:
            txtToolbarTitle.setVisibility(View.VISIBLE);
            txtToolbarTitle.setText("Notifications");
            frag = FragmentInbox.instance(screenTitles[position]);
            break;
        case POS_LOG:
            frag = FragmentLog.instance(screenTitles[position]);;
            break;
        case POS_BOOK:
            frag = FragmentBook.instance(screenTitles[position]); …

现在我正在使用最新版本的appcompat和设计支持库.

compile 'com.android.support:appcompat-v7:23.2.1'
compile 'com.android.support:design:23.2.1'

现在即将面临一些弃用

 private void setupTabLayout() {
    mTabLayout = (TabLayout)findViewById(R.id.tab_layout);
    mAdapter = new MyPagerAdapter(getSupportFragmentManager());
    mPager = (ViewPager)findViewById(R.id.pager);
    mPager.setAdapter(mAdapter);
    mTabLayout.setTabsFromPagerAdapter(mAdapter); <!-- deprecated -->
    mTabLayout.setupWithViewPager(mPager);
}

任何人都知道我要用什么代替..帮助我..谢谢

我添加对角线切割布局RecyclerView,但我没有得到预期的结果.我的第二个观点start with end of first view, and thats obvious.但我想要的是每个视图都是join with each-other这样的.

我的输出:

这就是我想要的:

CutLayout.class:

public class CutLayout extends FrameLayout {
    private Paint paint = new Paint(Paint.ANTI_ALIAS_FLAG);
    private Xfermode pdMode = new PorterDuffXfermode(PorterDuff.Mode.CLEAR);
    private Path path = new Path();

    public CutLayout(Context context) {
        super(context);
    }

    public CutLayout(Context context, AttributeSet attrs) {
        super(context, attrs);
    }

    public CutLayout(Context context, AttributeSet attrs, int defStyleAttr) {
        super(context, attrs, defStyleAttr);
    }

    @TargetApi(Build.VERSION_CODES.LOLLIPOP)
    public CutLayout(Context context, AttributeSet attrs, int defStyleAttr, int …

当我将颜色设置为SlidingTabLayout对象时,我得到错误.这是我的mainActivity,首先我发现不推荐使用getResource.getColor ..所以我使用了contextCompat.getColor ..但现在它将变为null.

public class MainActivity extends AppCompatActivity {

    private Toolbar toolbar;
    private ViewPager mPager;
    private SlidingTabLayout mTabs;
    private MyPagerAdapter adapter;
     Context context;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        toolbar = (Toolbar) findViewById(R.id.app_bar);
        mPager = (ViewPager) findViewById(R.id.pager);
        mTabs = (SlidingTabLayout) findViewById(R.id.tabs);

        setSupportActionBar(toolbar);
        assert getSupportActionBar() != null;
        getSupportActionBar().setDisplayShowHomeEnabled(true);

        NavigationDrawerFragment navigationDrawerFragment = (NavigationDrawerFragment)
                getSupportFragmentManager().findFragmentById(R.id.fragment_nav_drawer);
        navigationDrawerFragment.setUp(R.id.fragment_nav_drawer, (DrawerLayout) findViewById(R.id.drawer_layout), toolbar);

        adapter = new MyPagerAdapter(getSupportFragmentManager(),MainActivity.this);
        mPager.setAdapter(adapter);
        mTabs.setViewPager(mPager);
        mTabs.setDistributeEvenly(true);

        int bgColor = ContextCompat.getColor(context,R.color.colorAccent);
        mTabs.setBackgroundColor(bgColor);
        mTabs.setSelectedIndicatorColors(ContextCompat.getColor(context, R.color.colorAccent));
        mTabs.invalidate();
        mTabs.setCustomTabView(R.layout.custom_tab_view,R.id.tabText);
    }


    @Deprecated
    public boolean onCreateOptionsMenu(Menu menu) …

版本：

   "native-base": "^2.4.2",
    "react": "16.3.1",
    "react-native": "0.55.2",
    "react-native-global-font": "^1.0.1",
    "react-native-router-flux": "^4.0.0-beta.28",
    "react-navigation": "^1.5.11"

当我添加反应导航时，我无法更改状态栏颜色，我的状态栏变为蓝色。

这是我的Navigationview.js代码

    render() {
          return (
            <Root style={styles.container}>
                <StatusBar
                  backgroundColor="white"
                  barStyle="dark-content"
                />
                <MainView />
            </Root>
          );
        }

    const drawerHeader = (props) => (
  <Container style={styles.container}>
    <Header style={styles.header}>
      <Body style={styles.body}>
        <Icon name="person" style={{ fontSize: 40, color: '#CCCCCC' }} />
      </Body>
    </Header>
    <Content>
    <SafeAreaView forceInset={{ top: 'always', horizontal: 'never' }}>
        <DrawerItems {...props} />
        <Button title="Logout" onPress={() => Actions.reset('login')} />
    </SafeAreaView>
    </Content>
  </Container>
);

    const MainView = DrawerNavigator({
      DASHBOARD: { …