我正在尝试修复游戏中的结算问题。现在一切都很好，除非我买了一件商品（也应该删除广告）并重新加载游戏，加载屏幕上的游戏崩溃。 我在Main.java onResume活动中出了点问题，而Adview需要做些什么，但我不熟悉它。
Here is the logcat error:
E/AndroidRuntime: FATAL EXCEPTION: main
java.lang.RuntimeException: Unable to resume activity {com.games.finddifference2.hd/com.games.finddifference2.hd.Main}:
java.lang.NullPointerException: Attempt to invoke virtual method 'void com.google.android.gms.ads.AdView.a()' on a null object reference
at android.app.ActivityThread.performResumeActivity(ActivityThread.java:3333)
at android.app.ActivityThread.handleResumeActivity(ActivityThread.java:3364)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2671)
at android.app.ActivityThread.-wrap11(ActivityThread.java)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1493)
at android.os.Handler.dispatchMessage(Handler.java:111)
at android.os.Looper.loop(Looper.java:207)
at android.app.ActivityThread.main(ActivityThread.java:5769)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:789)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:679)
Caused by: java.lang.NullPointerException: Attempt to invoke virtual method 'void com.google.android.gms.ads.AdView.a()' on a null object reference
at com.games.finddifference2.hd.Main.onResume(SourceFile:264)
at android.app.Instrumentation.callActivityOnResume(Instrumentation.java:1269)
at android.app.Activity.performResume(Activity.java:6691)
at android.app.ActivityThread.performResumeActivity(ActivityThread.java:3318)
Main.java：
import com.google.android.gms.ads.AdRequest;
import com.google.android.gms.ads.AdSize;
import com.google.android.gms.ads.AdView;
import com.google.android.gms.ads.InterstitialAd;
import android.annotation.SuppressLint;
import android.app.Activity;
import android.app.AlertDialog;
import android.content.Context;
import android.content.DialogInterface;
import android.content.Intent;
import android.content.SharedPreferences;
import android.content.DialogInterface.OnClickListener;
import android.media.AudioManager;
import android.net.Uri;
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.util.Log;
import android.view.KeyEvent;
import android.view.View;
import android.view.Window;
import android.view.WindowManager;
import android.view.animation.AccelerateInterpolator;
import android.view.animation.AlphaAnimation;
import android.widget.RelativeLayout;
import com.tapjoy.TapjoyConnect;
/**
* The initial Android Activity, setting and initiating
*/
@SuppressLint("NewApi")
public class Main extends Activity {
/** Our own OpenGL View overridden */
private OpenGLRenderer openGLRenderer;
//private final boolean isGoogle = false;
public AdView adView;
private InterstitialAd interstitial;
private RelativeLayout rl;
private RelativeLayout.LayoutParams relativeParamsTOP;
private RelativeLayout.LayoutParams relativeParamsBOTTOM;
private Context mContext;
private boolean fullgame = true;
private boolean adshown = false;
private boolean tapjoy = false;
private AdRequest adRequest;
public Handler handler = new Handler() {
public void handleMessage(Message msg) {
Log.i("Handler", "Handler called with code: " + msg);
AlphaAnimation animation = new AlphaAnimation( 0.0f, 1.0f );
animation.setDuration( 400 );
animation.setFillAfter( true );
animation.setInterpolator( new AccelerateInterpolator() );
AlphaAnimation animation2 = new AlphaAnimation( 1.0f, 0.0f );
animation2.setDuration( 400 );
animation2.setFillAfter( true );
animation2.setInterpolator( new AccelerateInterpolator() );
switch(msg.what)
{
case 0:
try {
adView.startAnimation( animation2 );
adView.setVisibility(View.GONE);
adshown = false;
this.postDelayed(new Runnable() { public void run() {
try {
//adshown = false;
rl.removeView(adView);
} catch (Exception e) { e.printStackTrace(); }
} }, 400);
} catch (Exception e) { e.printStackTrace(); }
break;
case 1:
if (!fullgame && !adshown) {
try {
adshown = true;
rl.addView(adView, relativeParamsBOTTOM);
adView.startAnimation( animation );
adView.setVisibility(View.VISIBLE);
} catch (Exception e) { e.printStackTrace(); }
}
break;
case 2:
if (!fullgame && !adshown) {
try {
adshown = true;
rl.addView(adView, relativeParamsTOP);
adView.startAnimation( animation );
adView.setVisibility(View.VISIBLE);
} catch (Exception e) { e.printStackTrace(); }
}
break;
case 3:
getWindow().addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);
break;
case 4:
getWindow().clearFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);
break;
case 5:
if (interstitial.isLoaded()) {
interstitial.show();
}
break;
default:
break;
}
}
};
/**
* Initiate the OpenGL View and set our own
*/
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
mContext = this;
requestWindowFeature(Window.FEATURE_NO_TITLE);
getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN, WindowManager.LayoutParams.FLAG_FULLSCREEN);
rl = new RelativeLayout(this);
relativeParamsTOP = new RelativeLayout.LayoutParams(RelativeLayout.LayoutParams.MATCH_PARENT, RelativeLayout.LayoutParams.WRAP_CONTENT);
relativeParamsBOTTOM = new RelativeLayout.LayoutParams(RelativeLayout.LayoutParams.WRAP_CONTENT, RelativeLayout.LayoutParams.WRAP_CONTENT);
relativeParamsTOP.addRule(RelativeLayout.ALIGN_PARENT_TOP);
relativeParamsBOTTOM.addRule(RelativeLayout.ALIGN_PARENT_BOTTOM);
this.setVolumeControlStream(AudioManager.STREAM_MUSIC);
SoundManager.getInstance();
SoundManager.initSounds(this);
SoundManager.loadSounds();
SharedPreferences pref = mContext.getSharedPreferences("Settings", Context.MODE_PRIVATE);
fullgame = pref.getBoolean("Ads", false);
// Create the adView
if (!fullgame) {
adView = new AdView(this);
adView.setAdUnitId(getString(R.string.admob_banner_id));
adView.setAdSize(AdSize.SMART_BANNER);
// Create the interstitial.
interstitial = new InterstitialAd(this);
interstitial.setAdUnitId(getString(R.string.admob_interstitial_id));
}
// TAPJOY
try {
TapjoyConnect.requestTapjoyConnect(this, "3a62180b-8dd2-487c-9af3-30e6455f562b", "X0J1DTeFNZ95yMAdcx8w");
Log.i("Tapjoy", "Tapjoy connected");
tapjoy = true;
} catch (Exception e)
{
e.printStackTrace();
}
try {
openGLRenderer = new OpenGLRenderer(this, handler);
} catch (Exception e)
{
e.printStackTrace();
}
// Add the adView to it
rl.addView(openGLRenderer);
if (!fullgame) {
try {
adView.setVisibility(View.GONE);
adView.loadAd(new AdRequest.Builder().build());
adRequest = new AdRequest.Builder().build();
interstitial.loadAd(adRequest);
Log.i("Ads", "----- request loaded");
}
catch (Exception e)
{
e.printStackTrace();
}
}
setContentView(rl);
}
/**
* Remember to resume the glSurface
*/
@Override
protected void onResume() {
super.onResume();
openGLRenderer.onResume();
adView.resume();
Log.i("OpenGL", "onResume called");
if (interstitial != null && adRequest != null) {
interstitial.loadAd(adRequest);
} else {
interstitial = new InterstitialAd(this);
interstitial.setAdUnitId(getString(R.string.admob_interstitial_id));
adRequest = new AdRequest.Builder().build();
interstitial.loadAd(adRequest);
}
}
/**
* Also pause the glSurface
*/
@Override
public void onStart() {
super.onStart();
final SharedPreferences settings =
getSharedPreferences("localPreferences", MODE_PRIVATE);
if (settings.getBoolean("isFirstRun", true)) {
new AlertDialog.Builder(this)
.setMessage("We use device identifiers and share it with our partners to improve your user experience. See details in Privacy Policy.")
.setNeutralButton ("Privacy Policy", new DialogInterface.OnClickListener () {
@Override
public void onClick (DialogInterface dialog, int which) {
openBrowserLink (Main.this, "http://test.com");
}
})
.setPositiveButton ("Ok", new DialogInterface.OnClickListener () {
@Override
public void onClick(DialogInterface dialog, int which) {
settings.edit().putBoolean("isFirstRun", false).commit();
}
}).show();
}
}
public static void openBrowserLink (Context c, String str) {
Intent i = new Intent (Intent.ACTION_VIEW);
i.setData (Uri.parse (str));
c.startActivity (i);
}
@Override
protected void onPause() {
adView.pause();
openGLRenderer.onPause();
Log.i("OpenGL", "onPause called");
super.onPause();
}
@Override
protected void onDestroy() {
try { adView.destroy(); } catch (Exception e) { e.printStackTrace(); }
try { openGLRenderer.onDestroy(); } catch (Exception e) { e.printStackTrace(); }
try { SoundManager.cleanup(); } catch (Exception e) { e.printStackTrace(); }
if (tapjoy) try { TapjoyConnect.getTapjoyConnectInstance().sendShutDownEvent(); } catch (Exception e) { e.printStackTrace(); }
super.onDestroy();
}
@Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {
if (!openGLRenderer.mHelper.handleActivityResult(requestCode, resultCode, data)) {
super.onActivityResult(requestCode, resultCode, data);
}
}
}
答案 0 :(得分：1)
我不确定，但我认为这是adView未定义的时候。 在OnCreate中，如果fullgame = true - ＆gt; adView未定义 - ＆GT;在onResume：adView.resume（）和adView为空