单击按钮，将用户发送到aboutus.xml

Question

单击activity_main.xml上的about us按钮后，我一直无法找到将用户发送到xml的方法

MainActivity 我在这里声明了在Dat_menu.xml

中创建的ArrayAdapter

package com.example.vitoriano_vaz.eastbayvapes;

import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.widget.ArrayAdapter;
import android.widget.ListView;

/*
This app is for a local Vape Shop
 it's purpose is to increase customer flow, and provide a menu for Android users

 the array is going to be called = da_menu
 */
public class MainActivity extends AppCompatActivity {

    /*
    called when the user clicks the send Button
     */

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

        populateListView();
    }


    private void populateListView() {
        // Create the list of items

        String[] juiceMenu= {
                "#1 BlueBerry Bombshell",
                "#2 Richie Rich",
                "#3 Chiquita",
                "#4 Afternoon Delight",
                "#5 Poppin Otters",
                "#6 Viva La Sangria",
                "#7 Okole Maluna",
                "#8 Carmen Miranda",
                "#9 Pomalade",
                "#10 Izual",
                "#11 Butter Stotch",
                "#12 Blue Bulls",
                "#13 Grape Ape",
                "#14 Bruce Juice",
                "#15 Doc Holiday",
                "#16 Peachy Keen",
                "#17 Hula",
                "#18 New York",
                "#19 Al Gore",
                "#20 Lux Charms",
                "#21 Sailor Jack",
                "#22 Get Him to the Greek",
                "#23 Key We Lie Chi",
                "#24 Spring Fling",
                "#25 Gumby",
                "#26 Chai-Milk",
                "#27 Mr. Bean",
                "#28 50 Shades of Orange",
                "#29 Blue Waffles",
                "#30 Enigma",
                "#31 Mr. Freeze",
                "#32 Cup of Joe"};
        // Build adapter
        ArrayAdapter<String> adapter = new ArrayAdapter<String>(
                this,               // context for the activity
                R.layout.da_menu,   // Layout to create
                juiceMenu);         // Items to be displayed

        //configure list view
        ListView list = (ListView) findViewById(R.id.listViewMain);
        list.setAdapter(adapter);
    }
}

Activty_main.xml 这里我在ListView中显示ArrayAdapter

 <?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:background="#FFFAFA"
    android:layout_height="match_parent"
    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="com.example.vitoriano_vaz.eastbayvapes.MainActivity">

    <TextView
        android:textAllCaps="true"
        android:textSize="22sp"
        android:textStyle="bold"
        android:textColor="#000000"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Welcome to East Bay Vapes"
        android:id="@+id/textView" />

    <ListView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:id="@+id/listViewMain"
        android:layout_centerHorizontal="true"
        android:layout_below="@+id/buttonAboutUs" />

    <Button
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="About Us"
        android:id="@+id/buttonAboutUs"
        android:onClick="onClick"
        android:layout_below="@+id/textView"
        android:layout_centerHorizontal="true" />

</RelativeLayout>

aboutus.xml 这是我想要用户点击buttonAboutUs后发送的xml 我经常遇到问题，似乎无法找到有效的解决方案。我试过ViewSwitcher但似乎无法让它工作。

<?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="match_parent"
    android:background="#8800FF"
    android:id="@+id/myRelativeLayout"
    android:inAnimation="@android:anim/slide_in_left">
        <TextView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:textAppearance="?android:attr/textAppearanceLarge"
            android:text="About Us"
            android:id="@+id/AboutUs"
            android:textStyle="bold"
            android:layout_alignParentTop="true"
            android:layout_centerHorizontal="true" />

         <EditText
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:inputType="textEmailAddress"
            android:ems="10"
            android:id="@+id/editText2"
            android:text="bayvapes@gmail.com"
            android:textStyle="bold"
            android:layout_alignParentEnd="true"
            android:layout_alignParentStart="true"
            android:layout_below="@+id/AboutUs" />

        <EditText
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:inputType="textPostalAddress"
            android:ems="10"
            android:id="@+id/editText3"
            android:layout_below="@+id/editText2"
            android:text="1555 S Vasco RD Liver, Ca 94551"
            android:layout_alignParentStart="true"
            android:layout_alignParentEnd="true"
            android:textStyle="bold" />

        <EditText
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:inputType="phone"
            android:ems="10"
            android:id="@+id/editText4"
            android:layout_below="@+id/editText3"
            android:text="(925)-961-9000"
            android:textStyle="bold"
            android:layout_alignParentStart="true"
            android:layout_alignParentEnd="true" />

        <EditText
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:id="@+id/editText5"
            android:layout_below="@+id/editText4"
            android:text="facebook.com/bayvapes"
            android:layout_alignParentStart="true"
            android:layout_alignParentEnd="true"
            android:textStyle="bold" />

        <EditText
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:id="@+id/editText6"
            android:layout_below="@+id/editText5"
            android:layout_alignParentStart="true"
            android:layout_alignParentEnd="true"
            android:text="Instagram: @bayvapes"
            android:textStyle="bold" />

        <EditText
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:inputType="textMultiLine"
            android:ems="10"
            android:id="@+id/editText7"
            android:layout_below="@+id/editText6"
            android:text="Monday - Saturday 10:00 am - 8:00 pm\n Sunday 10:00 am - 6:00 pm"
            android:layout_alignParentStart="true"
            android:layout_alignParentEnd="true" />
</

Answer 1

首先在#include <stdlib.h> #include <string.h> #include <stdio.h> #define M 1 #define MAXN 5000000 char c[MAXN], *a[MAXN]; int pstrcmp(char **p, char **q){ return strcmp(*p, *q); } int main(){ int i, ch, n = 0, maxi, maxlen = -1; while ((ch = getchar()) != EOF) { a[n] = &c[n]; c[n++] = ch; } c[n] = 0; qsort(a, n, sizeof(char *), pstrcmp); printf("%s",a[1]); return 0; }

添加一个按钮

activity_main.xml

在<Button android:id="@+id/button" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="Click Me" />

中找到此视图

MainActivity.java

现在创建一个您称之为关于我们的新活动<}添加您要在Button button=(Button)findViewById(R.id.button);

中显示的数据

现在为about_us.xml中的按钮点击此ClickListener。

MainActivity.java

Answer 2

在MainActivity中定义一个像这样的onClick方法。

    public void onClick(View view){
            Intent intent = new Intent(MainActivity.this, AboutUs.class); // this is AboutUs activity
            startActivity(intent); // start the intent to go to AboutUs Screen
        }

您在MainActivity Class

中缺少上述方法

Answer 3

创建一个像AboutActivity.class这样的活动，并将其添加到清单文件

中

<activity android:name=".AboutActivity"/>

现在在MainActivity.class中创建以下方法

public void onClick(View v) {
        Intent intent=new Intent(MainActivity.this, AboutActivity.class);
        //This will send user to your about activity
        startActivity(intent);
        }