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我是Android的初學者，我試圖在webview上展示廣告，但我在佈局文件中遇到了問題「以下類無法實例化：com.google.android.gms。 ads.AdView」。我遵循了使用谷歌播放服務所涉及的所有步驟。非常感謝您的幫助。Admob + Android WebView問題
MainActivity.Java
package com.test.webviewcode;
import com.test.webviewcode.R;
import com.google.android.gms.ads.*;
import android.content.res.Configuration;
import android.os.Bundle;
import android.support.v7.app.ActionBarActivity;
import android.view.Menu;
import android.view.MenuItem;
import android.webkit.WebSettings;
import android.webkit.WebView;
import android.widget.LinearLayout;
import com.google.android.gms.ads.AdRequest;
import com.google.android.gms.ads.AdSize;
import com.google.android.gms.ads.AdView;
import android.app.Activity;
public class MainActivity extends Activity {
private AdView adView;
private WebView mWebView;
private static final String AD_UNIT_ID = "xxxxxxxxxxxxxxxxxxxxxxxxx";
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
mWebView = (WebView) findViewById(R.id.activity_main_webview);
// Enable Javascript
WebSettings webSettings = mWebView.getSettings();
webSettings.setJavaScriptEnabled(true);
mWebView.loadUrl("https://www.google.com/");
// Stop local links and redirects from opening in browser instead of WebView
mWebView.setWebViewClient(new WebViewClient1());
// Create an ad.
adView = new AdView(this);
adView.setAdSize(AdSize.BANNER);
adView.setAdUnitId(AD_UNIT_ID);
LinearLayout Layout = (LinearLayout) findViewById(R.id.adView);
Layout.addView(adView);
AdRequest adRequest = new AdRequest.Builder()
.addTestDevice(AdRequest.DEVICE_ID_EMULATOR)
.addTestDevice("yyyyyyyyyyyyyyyyyyyyyyyyyyy")
.build();
adView.loadAd(adRequest);
}
@Override
public void onBackPressed() {
if(mWebView.canGoBack()) {
mWebView.goBack();
} 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();
if (id == R.id.action_settings) {
return true;
}
return super.onOptionsItemSelected(item);
}
@Override
public void onConfigurationChanged(Configuration newConfig){
super.onConfigurationChanged(newConfig);
}
@Override
public void onResume() {
super.onResume();
if (adView != null) {
adView.resume();
}
}
@Override
public void onPause() {
if (adView != null) {
adView.pause();
}
super.onPause();
}
/** Called before the activity is destroyed. */
@Override
public void onDestroy() {
// Destroy the AdView.
if (adView != null) {
adView.destroy();
}
super.onDestroy();
}
}
activity_main.xml
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:ads="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical" >
<com.google.android.gms.ads.AdView
xmlns:ads="http://schemas.android.com/apk/res-auto"
android:id="@+id/adView"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_alignParentTop="false"
android:layout_centerHorizontal="true"
ads:adSize="BANNER"
ads:adUnitId="xxxxxxxxxxxxxxxxxx" >
<!--
ads:loadAdOnCreate="true"
ads:refreshInterval="30" >
-->
</com.google.android.gms.ads.AdView>
<LinearLayout
android:layout_alignParentTop="true"
android:layout_above="@id/adView"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical" >
<ProgressBar
android:id="@+id/ProgressBar"
style="?android:attr/progressBarStyleHorizontal"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center_horizontal"
android:indeterminate="false"
android:progress="50"
android:progressDrawable="@drawable/greenprogress" />
<WebView
android:id="@+id/activity_main_webview"
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="1" />
</LinearLayout>
</RelativeLayout>
Mainfest File
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.test.webviewcode"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk
android:minSdkVersion="10"
android:targetSdkVersion="21" />
<application
android:allowBackup="true"
android:icon="@drawable/ic_launcher"
android:label="@string/app_name"
android:theme="@style/AppTheme" >
<meta-data android:name="com.google.android.gms.version"
android:value="@integer/google_play_services_version" />
<activity
android:name=".MainActivity"
android:label="@string/app_name" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity android:name="com.google.android.gms.ads.AdActivity"
android:configChanges="keyboard|keyboardHidden|orientation|screenLayout|uiMode|screenSize|smallestScreenSize"/>
</application>
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"/>
<uses-permission android:name="android.permission.INTERNET" />
</manifest>
我認爲AdMob的 – 2014-08-30 07:32:44
納文的烏爾使用橫幅進階，能不能請您詳細闡述，並告訴我，我該如何解決這個問題 – tattva 2014-08-30 07:37:41
.addTestDevice（AdRequest.DEVICE_ID_EMULATOR） .addTestDevice（「yyyyyyyyyyyyyyyyyyyyyyyyyyy」）從刪除此兩個線路你的代碼和沒有問題在你的我認爲是加載請回你的屏幕我認爲你的電子郵件廣告 – 2014-08-30 07:42:45