如何从Android中的片段活动设置工具栏中的图像和文本 [英] How to set images and text in toolbar from fragment activities in android

问题描述

我需要在navigationDrawer活动的工具栏的右侧设置一个imageView和Textview，但是问题是每个片段活动的imageview和textview值是不同的.而且我还需要使工具栏透明化.我正在使用默认的导航抽屉活动.任何人都可以帮忙吗?任何帮助将不胜感激.

I need to set one imageView and Textview on the right side of toolbar in the navigationDrawer activity.But the thing is that the values for imageview and textviews are different for each fragment activity. And also I need to make the toolbar transparent.I am using default navigation drawer activity.Can anyone help? Any help will be appreciated.

app_bar_main.xml文件

app_bar_main.xml file

<? xml version = "1.0" encoding="utf-8"?>
<android.support.design.widget.CoordinatorLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:fitsSystemWindows="true"
    tools:context="com.unitybees.photo.MainActivity">
    <android.support.design.widget.AppBarLayout
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:theme="@style/AppTheme.AppBarOverlay"
            android:background="@null">
        <android.support.v7.widget.Toolbar
                android:id="@+id/toolbar"
                android:layout_width="match_parent"
                android:layout_height="?attr/actionBarSize"
                android:background="?attr/colorPrimary"
                app:popupTheme="@style/AppTheme.PopupOverlay">
            <LinearLayout
                android:layout_width="wrap_content"
                        android:layout_height="wrap_content"
                        android:orientation="horizontal">
                <ImageView android:id="@+id/right_icon"
                        android:layout_gravity="right"
                        android:layout_width="40dp"
                        android:layout_height="40dp"/>
                <TextView android:id="@+id/right_text"
                        android:layout_width="wrap_content"
                        android:layout_height="wrap_content"
                        android:layout_gravity="right"
                        android:textColor="#000000"/>
            </LinearLayout>
        </android.support.v7.widget.Toolbar>
    </android.support.design.widget.AppBarLayout>
    <include layout="@layout/content_main"/>
</android.support.design.widget.CoordinatorLayout>

MainActivity.java

MainActivity.java

    public class MainActivity extends AppCompatActivity implements
        NavigationView.OnNavigationItemSelectedListener {
    public static final int right_image = 1;
    public static final int right_texts = 2;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
        setSupportActionBar(toolbar);
        TextView t = (TextView) findViewById(R.id.right_text);
        DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
        ActionBarDrawerToggle toggle = new ActionBarDrawerToggle(this, drawer,
                toolbar, R.string.navigation_drawer_open,
                R.string.navigation_drawer_close);
        drawer.setDrawerListener(toggle);
        toggle.syncState();
        NavigationView navigationView = (NavigationView)
                findViewById(R.id.nav_view);
        navigationView.setNavigationItemSelectedListener(this);
        this.setTitle("");
    }

    @Override
    public void onBackPressed() {
        DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
        if (drawer.isDrawerOpen(GravityCompat.START)) {
            drawer.closeDrawer(GravityCompat.START);
        } else {
            super.onBackPressed();
        }
    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        getMenuInflater().inflate(R.menu.main, menu);
        return true;
    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        int id = item.getItemId();
        if (id == R.id.action_settings) {
            return true;
        }
        return super.onOptionsItemSelected(item);
    }

    @SuppressWarnings("StatementWithEmptyBody")
    @Override
    public boolean onNavigationItemSelected(MenuItem item) {
        displaySelectedScreen(item.getItemId());
        return true;
    }

    private void displaySelectedScreen(int itemId) {
        android.support.v4.app.Fragment fragment = null;
        switch (itemId) {
            case R.id.nav_menu1:
                fragment = new Book_now();
                break;
            case R.id.nav_menu2:
                fragment = new Payment();
                break;
            case R.id.nav_menu3:
                fragment = new Account();
                break;
        }
        if (fragment != null) {
            FragmentTransactionft = getSupportFragmentManager().beginTransaction();
            ft.replace(R.id.content_frame, fragment);
            ft.commit();
        }
        DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
        drawer.closeDrawer(GravityCompat.START);
    }
}

我的Account.java

my Account.java

public class Account extends android.support.v4.app.Fragment {
    TextView txt;

    @Nullable
    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
                             Bundle savedInstanceState) {
        return inflater.inflate(R.layout.account, container, false);
    }

    @Override
    public void onViewCreated(View view, Bundle savedInstanceState) {
        super.onViewCreated(view, savedInstanceState);
        getActivity().setTitle("");
    }
}

推荐答案

您好，如果有帮助，请尝试此操作

Hello Try this if it may help

1)在您的活动中添加此方法

public void initToolBar(String title) {
        toolbar = (Toolbar) findViewById(R.id.toolbar);
        toolbar.setTitle(title);

        setSupportActionBar(toolbar);

        toolbar.setNavigationIcon(R.mipmap.ic_launcher_round);
        toolbar.setNavigationOnClickListener(
        new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                Toast.makeText(MainActivity.this, "clicking the toolbar!", Toast.LENGTH_SHORT).show();
            }
        }

        );
    }

2)要从片段中更新方法，请使用

((MainActivity) getActivity()).initToolBar("Fragment Title");

这篇关于如何从Android中的片段活动设置工具栏中的图像和文本的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！