目標：點擊按鈕跳出通知，用戶可以從通知跳轉到另一個頁面
顯示通知，但點擊通知無法跳轉頁面
我認為 PendingIntent 是錯誤的
如何解決？
public class MainActivity extends AppCompatActivity {
private String CHANNEL_ID = "Coder";
NotificationManager manager;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O){
NotificationChannel channel = new NotificationChannel(
CHANNEL_ID, "DemoCode", NotificationManager.IMPORTANCE_DEFAULT);
manager = getSystemService(NotificationManager.class);
assert manager != null;
manager.createNotificationChannel(channel);
}
Button btDefault,btCustom;
btDefault = findViewById(R.id.button_DefaultNotification);
btCustom = findViewById(R.id.button_CustomNotification);
btDefault.setOnClickListener(onDefaultClick);
}
private final View.OnClickListener onDefaultClick = new View.OnClickListener() {
@Override
public void onClick(View v) {
Intent nextIntent = new Intent(MainActivity.this, secondActivity.class);
PendingIntent pendingIntent = PendingIntent.getActivity(MainActivity.this, 0, nextIntent,PendingIntent.FLAG_IMMUTABLE);
NotificationCompat.Builder builder = new NotificationCompat.Builder(MainActivity.this, CHANNEL_ID);
builder.setContentTitle("Notification");
builder.setContentText("You have a new message");
builder.setSmallIcon(R.drawable.ic_baseline_accessible_forward_24);
builder.setContentIntent(pendingIntent);
builder.setAutoCancel(true);
manager.notify(1, builder.build());}
uj5u.com熱心網友回復：
檢查這是否適合您。如android api中所述
您應該考慮用戶的預期導航體驗。pendingIntent因此，為了使用with進行最佳導航Notification，您應該執行以下操作：
1.首先在里面定義你的應用的層次結構AndroidManifest.xml：
<activity
android:name=".MainActivity"
... >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<!-- MainActivity is the parent for SecondActivity -->
<activity
android:name=".SecondActivity"
android:parentActivityName=".MainActivity" />
...
</activity>
現在您告訴 android，當點擊通知時，SecondActivity將是MainActivity用戶向上導航時的子級。
2.創建PendingIntent使用TaskStackBuilder：
Intent intent = new Intent(MainActivity.this, SecondActivity.class);
PendingIntent pendingIntent = TaskStackBuilder.create(MainActivity.this)
.addNextIntentWithParentStack(intent)
.getPendingIntent(0, PendingIntent.FLAG_IMMUTABLE)
然后您可以將PendingIntent我們創建的通知設定為。現在，如果用戶觸摸通知，android 系統將SecondActivity在按住MainActivity后退堆疊的同時將他導航到。
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標籤：爪哇安卓通知android-pendingintent