package com.example.mypreworktest;
import androidx.annotation.NonNull;
import androidx.appcompat.app.AppCompatActivity;
import android.os.Bundle;
import android.os.CountDownTimer;
import android.util.Log;
import android.view.View;
import android.widget.Button;
import android.widget.TextView;
import android.widget.Toast;
import com.google.android.gms.ads.AdError;
import com.google.android.gms.ads.AdRequest;
import com.google.android.gms.ads.AdView;
import com.google.android.gms.ads.FullScreenContentCallback;
import com.google.android.gms.ads.LoadAdError;
import com.google.android.gms.ads.MobileAds;
import com.google.android.gms.ads.initialization.InitializationStatus;
import com.google.android.gms.ads.initialization.OnInitializationCompleteListener;
import com.google.android.gms.ads.interstitial.InterstitialAd;
import com.google.android.gms.ads.interstitial.InterstitialAdLoadCallback;
public class MainActivity extends AppCompatActivity {
private static final String TAG = "MyActivity";
private static final String AD_UNIT_ID = "ca-app-pub-3940256099942544/1033173712";
private static final long GAME_LENGTH_MILLISECONDS = 3000;//总时长
private InterstitialAd interstitialAd;
private CountDownTimer countDownTimer;
private Button retryButton;
private boolean gameIsInProgress;
private long timerMilliseconds;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Log.i(TAG, "onCreate");
// Initialize the Mobile Ads SDK.
MobileAds.initialize(this, new OnInitializationCompleteListener() {
@Override
public void onInitializationComplete(InitializationStatus initializationStatus) {}
});
loadAd();
// Create the "retry" button, which tries to show an interstitial between game plays.
retryButton = findViewById(R.id.retry_button);
retryButton.setVisibility(View.INVISIBLE);
retryButton.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
showInterstitial();
}
});
startGame();
}
public void loadAd() {
AdRequest adRequest = new AdRequest.Builder().build();
//插页广告 加载
InterstitialAd.load(
this,
AD_UNIT_ID,
adRequest,
new InterstitialAdLoadCallback() {
@Override
public void onAdLoaded(@NonNull InterstitialAd interstitialAd) {
// The mInterstitialAd reference will be null until
// an ad is loaded.
// 翻译： 在此之前，interstitialAd都为null，此时才被加载
MainActivity.this.interstitialAd = interstitialAd;
Log.i(TAG, "onAdLoaded");
Toast.makeText(MainActivity.this, "onAdLoaded()", Toast.LENGTH_SHORT).show();
//FullScreenContentCallback 处理与展示 InterstitialAd 相关的事件
interstitialAd.setFullScreenContentCallback(
new FullScreenContentCallback() {
@Override
public void onAdDismissedFullScreenContent() {
// Called when fullscreen content is dismissed.
// Make sure to set your reference to null so you don't show it a second time.
// 翻译： 确保将引用设置为null，这样就不会再次显示它
MainActivity.this.interstitialAd = null;
Log.d("TAG", "The ad was dismissed.");
}
@Override
public void onAdFailedToShowFullScreenContent(AdError adError) {
// Called when fullscreen content failed to show.
// Make sure to set your reference to null so you don't
// show it a second time.
//翻译： 同上
MainActivity.this.interstitialAd = null;
Log.d("TAG", "The ad failed to show.");
}
@Override
public void onAdShowedFullScreenContent() {
// Called when fullscreen content is shown.
Log.d("TAG", "The ad was shown.");
}
});
}
@Override
public void onAdFailedToLoad(@NonNull LoadAdError loadAdError) {
// Handle the error
Log.i(TAG, loadAdError.getMessage());
interstitialAd = null;
String error =
String.format(
"domain: %s, code: %d, message: %s",
loadAdError.getDomain(), loadAdError.getCode(), loadAdError.getMessage());
Toast.makeText(
MainActivity.this, "onAdFailedToLoad() with error: " + error, Toast.LENGTH_SHORT)
.show();
}
});
}
private void createTimer(final long milliseconds) {
// Create the game timer, which counts down to the end of the level
// and shows the "retry" button.
//翻译： 它倒计时到级别的末尾，并显示“重试”按钮。
if (countDownTimer != null) {
countDownTimer.cancel();
}
final TextView textView = findViewById(R.id.timer);
countDownTimer = new CountDownTimer(milliseconds, 1000) {
@Override
public void onTick(long millisUnitFinished) {
timerMilliseconds = millisUnitFinished;
Log.i(TAG, millisUnitFinished + "ms");
textView.setText("seconds remaining: " + ((millisUnitFinished / 1000) + 1));
}
@Override
public void onFinish() {
gameIsInProgress = false;
textView.setText("done!");
retryButton.setVisibility(View.VISIBLE);
}
};
}
@Override
protected void onStart() {
Log.i(TAG, "onStart");
super.onStart();
}
@Override
protected void onRestart() {
Log.i(TAG, "onRestart");
super.onRestart();
}
@Override
public void onResume() {
// Start or resume the game.
super.onResume();
Log.i(TAG, "onResume，此时广告为: "+ interstitialAd);
if (gameIsInProgress) {
resumeGame(timerMilliseconds);
}
}
@Override
public void onPause() {
// Cancel the timer if the game is paused.
Log.i(TAG, "onPause");
countDownTimer.cancel();
super.onPause();
}
private void showInterstitial() {
// Show the ad if it's ready. Otherwise toast and restart the game.
if (interstitialAd != null) {
interstitialAd.show(this);
} else {
Toast.makeText(this, "Ad did not load", Toast.LENGTH_SHORT).show();
startGame();
}
}
private void startGame() {
// Request a new ad if one isn't already loaded, hide the button, and kick off the timer.
if (interstitialAd == null) {
loadAd();
}
retryButton.setVisibility(View.INVISIBLE);
resumeGame(GAME_LENGTH_MILLISECONDS);
}
private void resumeGame(long milliseconds) {
Log.i(TAG, "resumeGame");
// Create a new timer for the correct length and start it.
gameIsInProgress = true;
timerMilliseconds = milliseconds;
createTimer(milliseconds);
countDownTimer.start();
}
}
