Question

我在活动WebViewActivity中有WebView，在main_activity中有一些图像按钮。你能帮我吗？我需要点击imagebutton1，它将在WebView等google.com中打开WebViewActivity。当我点击imagebutton2时，它会打开等yahoo.com。我是编程新手，我不是英语国家（我的英语很糟糕，因为我来自捷克代表）。谢谢你的帮助！

主要活动

package com.tona.arcig;

import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.widget.ImageButton;
import android.widget.Toast;

public class MainActivity extends Activity {

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

        addListenerOnButton();

    }

    public void addListenerOnButton() {

        ImageButton imgbutton1 = (ImageButton) findViewById(R.id.imageButton1);
        imgbutton1.setOnClickListener(new View.OnClickListener() {
            public void onClick(View v) {
                Toast.makeText(getApplicationContext(), "I like trains", Toast.LENGTH_LONG).show();
            }
        });
    }

}

WEBVIEWACTIVITY

package com.tona.arcig;

import android.app.Activity;
import android.os.Bundle;

public class WebviewActivity extends Activity {

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

    }

}

ACTIVITY MAIN XML

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:orientation="vertical" >

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:orientation="horizontal" >

        <ImageButton
            android:id="@+id/imageButton1"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_weight="2"
            android:contentDescription="@string/suplovani"
            android:src="@drawable/suplovani" />

        <ImageButton
            android:id="@+id/imageButton2"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_weight="2"
            android:contentDescription="@string/rozvrh"
            android:src="@drawable/rozvrh" />

    </LinearLayout>

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content" >

        <ImageButton
            android:id="@+id/imageButton3"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_weight="2"
            android:contentDescription="@string/prihlasovani"
            android:src="@drawable/prihlasovani" />

        <ImageButton
            android:id="@+id/imageButton4"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_weight="2"
            android:contentDescription="@string/email"
            android:src="@drawable/email" />

    </LinearLayout>

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content" >

        <ImageButton
            android:id="@+id/imageButton5"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_weight="2"
            android:contentDescription="@string/email"
            android:src="@drawable/moodle" />

        <ImageButton
            android:id="@+id/imageButton6"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_weight="2"
            android:contentDescription="@string/kdm"
            android:src="@drawable/jidelna" />

    </LinearLayout>

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:orientation="vertical" >

        <ImageButton
            android:id="@+id/imageButton7"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:contentDescription="@string/o_aplikaci"
            android:src="@drawable/about" />

    </LinearLayout>

</LinearLayout>

ACTIVITY WEBVIEW XML

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:orientation="vertical" >

    <WebView
    android:id="@+id/webview"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent" />

</LinearLayout>

清单

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:orientation="vertical" >

    <WebView
    android:id="@+id/webview"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent" />

</LinearLayout>

STRINGS

<?xml version="1.0" encoding="utf-8"?>
<resources>

    <string name="suplovani">Suplování</string>
    <string name="rozvrh">Rozvrh hodin</string>
    <string name="prihlasovani">Přihlašování do systému</string>
    <string name="email">Email</string>
    <string name="moodle">Moodle</string>
    <string name="kdm">KDM</string>
    <string name="o_aplikaci">O Aplikaci</string>
    <string name="app_name">Arcig.CZ</string>
    <string name="title_webview">Arcig.CZ</string>

</resources>

谢谢。

Answer 1

这是你应该做什么的基本框架。首先，您应该根据您点击的按钮传递一些数据（例如url string）。

接下来，您应检索数据并打开相应的网址。以下是如何实现这一目标的。

Intent openWebViewActivity = new Intent(this, WebViewActivity.class); // this is current Activity
openWebViewActivity.putExtra("web_url", "google.com"); // openWebViewActivity.putExtra("web_url", "yahoo.com");
startActivity(openWebViewActivity);

现在将以适当的意图打开新活动。你可以从中获得网址。

package com.tona.arcig;
import android.app.Activity;
import android.os.Bundle;

public class WebviewActivity extends Activity {

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

    String urlToLoad = getIntent().getStringExtra("web_url");
    WebView webView = (WebView) findViewById(R.id.webview);
    webView.loadUrl(urlToLoad);
}
}

Android - 使用活动1中活动2的webview

1 个答案: