在机器人如何在类文件中设置的抽屉式导航栏标题图片和名称编程？ [英] In android how to set navigation drawer header image and name programmatically in class file?

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问题描述

在机器人工作室1.4.1，我已经创造了新的抽屉式导航栏项目，该项目是default.My问题是，在这个项目中有nav_header_main.xml文件，该文件是为导航标题的形象和名称。我想这个形象和名称应该以编程方式在我的主类的活动来设置。如何做到这一点，我试过很多，但应用程序崩溃。

nav_header_main.xml 

 ＆LT;？XML版本=1.0编码=UTF-8＆GT？;
＆LT;的LinearLayout
机器人：layout_width =match_parent
机器人：ID =@ + ID / headerView
机器人：layout_height =@扪/ nav_header_height
机器人：背景=@绘制/ side_nav_bar
机器人：重力=底
机器人：方向=垂直
机器人：paddingBottom会=@扪/ activity_vertical_margin
机器人：paddingLeft =@扪/ activity_horizo​​ntal_margin
机器人：paddingRight =@扪/ activity_horizo​​ntal_margin
机器人：paddingTop =@扪/ activity_vertical_margin
机器人：主题=@风格/ ThemeOverlay.AppCompat.Dark＆GT;＆LT; ImageView的
    机器人：ID =@ + ID / ImageView的
    机器人：layout_width =WRAP_CONTENT
    机器人：layout_height =WRAP_CONTENT
    机器人：paddingTop =@扪/ nav_header_vertical_spacing
    机器人：SRC =@机器人：可绘制/ sym_def_app_icon/＆GT;＆LT;的TextView
    机器人：layout_width =match_parent
    机器人：layout_height =WRAP_CONTENT
    机器人：paddingTop =@扪/ nav_header_vertical_spacing
    机器人：文字=机器人工作室
    机器人：textAppearance =@风格/ TextAppearance.AppCompat.Body1/＆GT;＆LT;的TextView
    机器人：ID =@ + ID / TextView的
    机器人：layout_width =WRAP_CONTENT
    机器人：layout_height =WRAP_CONTENT
    机器人：文字=android.studio@android.com/＆GT;＆LT; / LinearLayout中＆GT;

activity_main.xml中

 ＆LT;？XML版本=1.0编码=UTF-8＆GT？;
＆LT; android.support.v4.widget.DrawerLayout的xmlns：机器人=htt​​p://schemas.android.com/apk/res/android
的xmlns：程序=htt​​p://schemas.android.com/apk/res-auto
的xmlns：工具=htt​​p://schemas.android.com/tool​​s
机器人：ID =@ + ID / drawer_layout
机器人：layout_width =match_parent
机器人：layout_height =match_parent
机器人：fitsSystemWindows =真
工具：openDrawer =开始＆GT;＆LT;包括
    布局=@布局/ app_bar_main
    机器人：layout_width =match_parent
    机器人：layout_height =match_parent/＆GT;＆LT; android.support.design.widget.NavigationView
    机器人：ID =@ + ID / nav_view
    机器人：layout_width =WRAP_CONTENT
    机器人：layout_height =match_parent
    机器人：layout_gravity =开始
    机器人：fitsSystemWindows =真
    应用：headerLayout =@布局/ nav_header_main
    应用：菜单=@菜单/ activity_main_drawer/＆GT;    ＆LT; /android.support.v4.widget.DrawerLayout>

MainActivity.Class 

 进口android.os.Bundle;
进口android.support.design.widget.FloatingActionButton;
进口android.support.design.widget.NavigationView;
进口android.support.design.widget.Snackbar;
进口android.support.v4.view.GravityCompat;
进口android.support.v4.widget.DrawerLayout;
进口android.support.v7.app.ActionBarDrawerToggle;
进口android.support.v7.app.AppCompatActivity;
进口android.support.v7.widget.Toolbar;
进口android.view.Menu;
进口android.view.MenuItem;
进口android.view.View;
进口android.widget.LinearLayout;
进口android.widget.Toast;公共类MainActivity扩展AppCompatActivity
        实现NavigationView.OnNavigationItemSelectedListener {    @覆盖
    保护无效的onCreate（捆绑savedInstanceState）{
        super.onCreate（savedInstanceState）;
        的setContentView（R.layout.activity_main）;        的LinearLayout headerImageView =（的LinearLayout）findViewById（R.id.headerView）;
        工具条工具栏=（栏）findViewById（R.id.toolbar）;
        setSupportActionBar（工具栏）;        FloatingActionButton FAB =（FloatingActionButton）findViewById（R.id.fab）;
        fab.setOnClickListener（新View.OnClickListener（）{
            @覆盖
            公共无效的onClick（查看视图）{
                Snackbar.make（看来，用自己的行动替换，Snackbar.LENGTH_LONG）
                        .setAction（动作，NULL）.show（）;
            }
        }）;        DrawerLayout抽屉=（DrawerLayout）findViewById（R.id.drawer_layout）;
        ActionBarDrawerToggle切换=新ActionBarDrawerToggle（
                对此，抽屉，工具栏，R.string.navigation_drawer_open，R.string.navigation_drawer_close）;
        drawer.setDrawerListener（切换）;
        toggle.syncState（）;        NavigationView navigationView =（NavigationView）findViewById（R.id.nav_view）;
        navigationView.setNavigationItemSelectedListener（本）;    }    @覆盖
    公共无效onBack pressed（）{
        DrawerLayout抽屉=（DrawerLayout）findViewById（R.id.drawer_layout）;
        如果（drawer.isDrawerOpen（GravityCompat.START））{
            drawer.closeDrawer（GravityCompat.START）;
        }其他{
            super.onBack pressed（）;
        }
    }    @覆盖
    公共布尔onCreateOptionsMenu（菜单菜单）{
        //充气菜单;如果是present这增加了项目操作栏。
        。getMenuInflater（）膨胀（R.menu.main，菜单）;
        返回true;
    }    @覆盖
    公共布尔onOptionsItemSelected（菜单项项）{
        //处理动作栏项目点击这里。操作栏会
        //自动处理上点击主页/向上按钮，只要
        //你在AndroidManifest.xml中指定一个父活动。
        INT ID = item.getItemId（）;        // noinspection SimplifiableIfStatement
        如果（ID == R.id.action_settings）{
            Toast.makeText（getApplicationContext（），工作，Toast.LENGTH_LONG）.show（）;
            返回true;
        }        返回super.onOptionsItemSelected（项目）;
    }    @燮pressWarnings（StatementWithEmptyBody）
    @覆盖
    公共布尔onNavigationItemSelected（菜单项项）{
        //处理导航视图项点击这里。
        INT ID = item.getItemId（）;        如果（ID == R.id.nav_camara）{
            //处理相机行动
        }否则如果（ID == R.id.nav_gallery）{        }否则如果（ID == R.id.nav_slideshow）{        }否则如果（ID == R.id.nav_manage）{        }否则如果（ID == R.id.nav_share）{        }否则如果（ID == R.id.nav_send）{        }        DrawerLayout抽屉=（DrawerLayout）findViewById（R.id.drawer_layout）;
        drawer.closeDrawer（GravityCompat.START）;        返回true;
    }
}


解决方案

由于在错误的 190226 ，从版本23.1.0获得头布局视图有：
navigationView.findViewById（R.id.navigation_header_text）不再起作用。

一个解决方法是编程充气headerview，发现鉴于ID从充气头视图。

例如：

 查看headerView = navigationView.inflateHeaderView（R.layout.navigation_header）;
headerView.findViewById（R.id.navigation_header_text）;

在理想情况下应该有一个方法 getHeaderView（），但它已经被提出，让我们来看看，并等待它的设计支持库的功能发布发布。

In android studio 1.4.1, I have created new Navigation Drawer Project which is default.My issue is in this project there is nav_header_main.xml file which is for navigation header image and name. I want this image and name should be set programmatically in my main class activity. How to do this, I tried lot but the app crashes.

nav_header_main.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout        
android:layout_width="match_parent"
android:id="@+id/headerView"
android:layout_height="@dimen/nav_header_height"
android:background="@drawable/side_nav_bar"
android:gravity="bottom"
android:orientation="vertical"
android:paddingBottom="@dimen/activity_vertical_margin"
android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin"
android:theme="@style/ThemeOverlay.AppCompat.Dark">

<ImageView
    android:id="@+id/imageView"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:paddingTop="@dimen/nav_header_vertical_spacing"
    android:src="@android:drawable/sym_def_app_icon" />

<TextView
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:paddingTop="@dimen/nav_header_vertical_spacing"
    android:text="Android Studio"
    android:textAppearance="@style/TextAppearance.AppCompat.Body1" />

<TextView
    android:id="@+id/textView"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:text="android.studio@android.com" />

</LinearLayout>

activity_main.xml

<?xml version="1.0" encoding="utf-8"?>
<android.support.v4.widget.DrawerLayout            

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:id="@+id/drawer_layout"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="true"
tools:openDrawer="start">

<include
    layout="@layout/app_bar_main"
    android:layout_width="match_parent"
    android:layout_height="match_parent" />

<android.support.design.widget.NavigationView
    android:id="@+id/nav_view"
    android:layout_width="wrap_content"
    android:layout_height="match_parent"
    android:layout_gravity="start"
    android:fitsSystemWindows="true"
    app:headerLayout="@layout/nav_header_main"
    app:menu="@menu/activity_main_drawer" />

    </android.support.v4.widget.DrawerLayout>

MainActivity.Class

import android.os.Bundle;
import android.support.design.widget.FloatingActionButton;
import android.support.design.widget.NavigationView;
import android.support.design.widget.Snackbar;
import android.support.v4.view.GravityCompat;
import android.support.v4.widget.DrawerLayout;
import android.support.v7.app.ActionBarDrawerToggle;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.Toolbar;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.LinearLayout;
import android.widget.Toast;

public class MainActivity extends AppCompatActivity
        implements NavigationView.OnNavigationItemSelectedListener {

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

        LinearLayout headerImageView= (LinearLayout) findViewById(R.id.headerView);


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

        FloatingActionButton fab = (FloatingActionButton) findViewById(R.id.fab);
        fab.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                Snackbar.make(view, "Replace with your own action", Snackbar.LENGTH_LONG)
                        .setAction("Action", null).show();
            }
        });

        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);

    }

    @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) {
        // Inflate the menu; this adds items to the action bar if it is present.
        getMenuInflater().inflate(R.menu.main, menu);
        return true;
    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        // Handle action bar item clicks here. The action bar will
        // automatically handle clicks on the Home/Up button, so long
        // as you specify a parent activity in AndroidManifest.xml.
        int id = item.getItemId();

        //noinspection SimplifiableIfStatement
        if (id == R.id.action_settings) {
            Toast.makeText(getApplicationContext(),"working",Toast.LENGTH_LONG).show();
            return true;
        }

        return super.onOptionsItemSelected(item);
    }

    @SuppressWarnings("StatementWithEmptyBody")
    @Override
    public boolean onNavigationItemSelected(MenuItem item) {
        // Handle navigation view item clicks here.
        int id = item.getItemId();

        if (id == R.id.nav_camara) {
            // Handle the camera action
        } else if (id == R.id.nav_gallery) {

        } else if (id == R.id.nav_slideshow) {

        } else if (id == R.id.nav_manage) {

        } else if (id == R.id.nav_share) {

        } else if (id == R.id.nav_send) {

        }

        DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
        drawer.closeDrawer(GravityCompat.START);

        return true;
    }
}

解决方案

As mentioned in the bug 190226, Since version 23.1.0 getting header layout view with: navigationView.findViewById(R.id.navigation_header_text) no longer works.

A workaround is to inflate the headerview programatically and find view by ID from the inflated header view.

For example:

View headerView = navigationView.inflateHeaderView(R.layout.navigation_header);
headerView.findViewById(R.id.navigation_header_text);

Ideally there should be a method getHeaderView() but it has already been proposed, let's see and wait for it to be released in the feature release of design support library.

这篇关于在机器人如何在类文件中设置的抽屉式导航栏标题图片和名称编程？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！

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