資料結構
網路
關係資料庫管理系統
作業系統
Java
MS Excel
iOS
HTML
CSS
Android
Python
C程式設計
C++
C#
MongoDB
MySQL
Javascript
PHP
物理學
化學
生物學
數學
英語
經濟學
心理學
社會學
時尚研究
法律研究如何在Android活動中從通知點擊發送引數？
此示例演示瞭如何從通知點擊發送引數到Android活動。
步驟 1 - 在Android Studio中建立一個新專案，轉到檔案⇒新建專案，並填寫所有必需的詳細資訊以建立一個新專案。
步驟 2 - 將以下程式碼新增到res/layout/activity_main.xml。
<? xml version = "1.0" encoding = "utf-8" ?> <RelativeLayout xmlns: android = "http://schemas.android.com/apk/res/android" xmlns: tools = "http://schemas.android.com/tools" android :layout_width = "match_parent" android :layout_height = "match_parent" tools :context = ".MainActivity" > <TextView android :id = "@+id/tvNotify" android :layout_width = "match_parent" android :layout_height = "wrap_content" android :layout_above = "@+id/btnNotify" android :layout_margin = "16dp" /> <Button android :id = "@+id/btnNotify" android :layout_width = "match_parent" android :layout_height = "wrap_content" android :layout_centerInParent= "true" android :layout_margin= "16dp" android :onClick= "createNotification" android :text= "create notification" /> </RelativeLayout>
步驟 3 - 將以下程式碼新增到src/MainActivity.java
package app.tutorialspoint.com.notifyme ;
import android.app.NotificationChannel ;
import android.app.NotificationManager ;
import android.app.PendingIntent ;
import android.content.Context ;
import android.content.Intent ;
import android.os.Bundle ;
import android.support.v4.app.NotificationCompat ;
import android.support.v7.app.AppCompatActivity ;
import android.view.View ;
import android.widget.TextView ;
public class MainActivity extends AppCompatActivity {
public static final String NOTIFICATION_CHANNEL_ID = "10001" ;
private final static String default_notification_channel_id = "default" ;
@Override
protected void onCreate (Bundle savedInstanceState) {
super .onCreate(savedInstanceState) ;
setContentView(R.layout. activity_main ) ;
onNewIntent(getIntent()) ;
}
@Override
protected void onNewIntent (Intent intent) {
super .onNewIntent(intent) ;
Bundle extras = intent.getExtras() ;
if (extras != null ) {
if (extras.containsKey( "NotificationMessage" )) {
String msg = extras.getString( "NotificationMessage" ) ;
TextView tvNotify = findViewById(R.id. tvNotify ) ;
tvNotify.setText(msg) ;
}
}
}
public void createNotification (View view) {
Intent notificationIntent = new Intent(MainActivity. this, MainActivity. class ) ;
notificationIntent.putExtra( "NotificationMessage" , "I am from Notification" ) ;
notificationIntent.addCategory(Intent. CATEGORY_LAUNCHER ) ;
notificationIntent.setAction(Intent. ACTION_MAIN ) ;
notificationIntent.setFlags(Intent. FLAG_ACTIVITY_CLEAR_TOP | Intent. FLAG_ACTIVITY_SINGLE_TOP ) ;
PendingIntent resultIntent = PendingIntent. getActivity (MainActivity. this, 0 , notificationIntent , 0 ) ;
NotificationCompat.Builder mBuilder = new NotificationCompat.Builder
(MainActivity. this, default_notification_channel_id )
.setSmallIcon(R.drawable. ic_launcher_foreground )
.setContentTitle( "Test" )
.setContentText( "Hello! This is my first push notification" )
.setContentIntent(resultIntent) ;
NotificationManager mNotificationManager = (NotificationManager) getSystemService(Context. NOTIFICATION_SERVICE ) ;
if (android.os.Build.VERSION. SDK_INT >= android.os.Build.VERSION_CODES. O ) {
int importance = NotificationManager. IMPORTANCE_HIGH ;
NotificationChannel notificationChannel = new
NotificationChannel( NOTIFICATION_CHANNEL_ID , "NOTIFICATION_CHANNEL_NAME" , importance) ;
mBuilder.setChannelId( NOTIFICATION_CHANNEL_ID ) ;
assert mNotificationManager != null;
mNotificationManager.createNotificationChannel(notificationChannel) ;
}
assert mNotificationManager != null;
mNotificationManager.notify(( int ) System. currentTimeMillis () , mBuilder.build()) ;
}
}步驟 4 - 將以下程式碼新增到androidManifest.xml
<? xml version = "1.0" encoding = "utf-8" ?> <manifest xmlns: android = "http://schemas.android.com/apk/res/android" package = "app.tutorialspoint.com.notifyme" > <application android :allowBackup = "true" android :icon = "@mipmap/ic_launcher" android :label = "@string/app_name" android :roundIcon = "@mipmap/ic_launcher_round" android :supportsRtl = "true" android :theme = "@style/AppTheme" > <activity android :name = ".MainActivity" > <intent-filter> <action android :name = "android.intent.action.MAIN" /> <category android :name= "android.intent.category.LAUNCHER" /> </intent-filter> </activity> </application> </manifest>
讓我們嘗試執行您的應用程式。我假設您已將您的實際Android移動裝置連線到您的計算機。要從Android Studio執行應用程式，請開啟您的一個專案活動檔案，然後單擊工具欄中的執行
圖示。選擇您的移動裝置作為選項，然後檢查您的移動裝置，它將顯示您的預設螢幕 -
點選 這裡 下載專案程式碼
更新於: 2019年7月30日
2K+ 瀏覽量
廣告