android中的横幅通知

￡神魔★判官ぃ 2023-05-30 14:55 14阅读 0赞

# 1.这个是点击按钮notice，然后按钮发送一个横幅通知 ，如果不想实现的话，可以剪切Onclick里面的内容 #

notice = findViewById(R.id.notice);
    notice.setOnClickListener(new View.OnClickListener() {
                @Override
                public void onClick(View v) {
    
                    String id = "my_channel_01";
                    String name = "我是渠道名字";
                    NotificationManager notificationManager = (NotificationManager) getSystemService(NOTIFICATION_SERVICE);
                    Notification notification = null;
    //                设置要跳转的页面
                    Intent intent = new Intent(MainActivity.this, NotificationActivity.class);
    //        要传递到下一个页面的数据
                    intent.putExtra("result", "Main函数要传递的参数");
                    
                    PendingIntent pendingIntent = PendingIntent.getActivity(MainActivity.this, 0, intent, 0);//延迟跳转
                    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
                        NotificationChannel mChannel = new NotificationChannel(id, name, NotificationManager.IMPORTANCE_LOW);
                        notificationManager.createNotificationChannel(mChannel);
                        notification = new Notification.Builder(MainActivity.this, "default")
                                .setChannelId(id)
    //                            设置标题
                                .setContentTitle("中奖五百万！！消息的标题")
                                .setContentText("消息的内容")
                                .setSmallIcon(R.mipmap.ic_launcher)
    //                            点击横幅自动跳转
                                .setContentIntent(pendingIntent)
    //                            点击横幅自动消失
                                .setAutoCancel(true)
                                .setLargeIcon(BitmapFactory.decodeResource(getResources(), R.mipmap.ic_launcher))
                                .build();
                    } else {
                        NotificationCompat.Builder notificationBuilder = new NotificationCompat.Builder(MainActivity.this, "default")
                                .setContentTitle("中奖五百万！！消息的标题")
                                .setContentText("消息的内容")
                                .setSmallIcon(R.mipmap.ic_launcher)
                                .setOngoing(true)
                                .setAutoCancel(true)
                                .setContentIntent(pendingIntent)
                                .setLargeIcon(BitmapFactory.decodeResource(getResources(), R.mipmap.ic_launcher))
                                .setChannelId(id);
                        notification = notificationBuilder.build();
                    }
                    notificationManager.notify(111123, notification);
                }
            });

# 2.接受的页面 #

# activity\_notification.xml #

<?xml version="1.0" encoding="utf-8"?>
    <androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
        xmlns:app="http://schemas.android.com/apk/res-auto"
        xmlns:tools="http://schemas.android.com/tools"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        tools:context=".NotificationActivity">
    
        <ImageView
            android:id="@+id/imageView2"
            android:layout_width="378dp"
            android:layout_height="379dp"
            android:scaleType="fitXY"
            app:layout_constraintEnd_toEndOf="parent"
            app:layout_constraintStart_toStartOf="parent"
            app:layout_constraintTop_toTopOf="parent"
            app:srcCompat="@mipmap/be" />
    
        <TextView
            android:id="@+id/t1"
            android:layout_width="224dp"
            android:layout_height="69dp"
            android:layout_marginStart="28dp"
            android:layout_marginLeft="28dp"
            android:layout_marginTop="36dp"
            android:gravity="center"
            android:text="TextView"
            android:textSize="30dp"
            android:textStyle="bold"
            app:layout_constraintStart_toStartOf="parent"
            app:layout_constraintTop_toBottomOf="@+id/imageView2" />
    </androidx.constraintlayout.widget.ConstraintLayout>

# NotificationActivity.java #

package com.example.myapplication;
    
    import androidx.appcompat.app.AppCompatActivity;
    
    import android.content.Intent;
    import android.os.Bundle;
    import android.util.Log;
    import android.widget.Button;
    import android.widget.TextView;
    
    public class NotificationActivity extends AppCompatActivity {
    
        private TextView t1;
        @Override
        protected void onCreate(Bundle savedInstanceState) {
            super.onCreate(savedInstanceState);
            setContentView(R.layout.activity_notification);
            Intent intent = getIntent();
            String str = intent.getStringExtra("result");
            Log.d("Notification",str);
            t1=findViewById(R.id.t1);
            t1.setText(str);
    
    
        }
    }

# 效果图 #

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3d1amluZzFfMQ_size_16_color_FFFFFF_t_70][]

安卓更新太快了，希望你们不要像我一样遇到烦恼

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