【Java 转 Android】34

import okhttp3.OkHttpClient;

import okhttp3.Request;

import okhttp3.Response;

public class MainActivity extends AppCompatActivity implements View.OnClickListener{

Button button;

private static final String TAG = "MainActivity";

@Override

protected void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.activity_main);

button = findViewById(R.id.btn_get);

button.setOnClickListener(this);

}

@Override

public void onClick(View v) {

switch (v.getId()) {

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se R.id.btn_get:

Intent intent = new Intent(this,NotificationActivity.class);

PendingIntent pi = PendingIntent.getActivity(this,0,intent,0);

NotificationManager notificationManager = (NotificationManager) getSystemService(NOTIFICATION_SERVICE);

Notification notification = new Notification.Builder(this)

.setContentTitle("通知标题")

.setContentText("通知内容")

.setWhen(System.currentTimeMillis())

.setSmallIcon(R.mipmap.ic_launcher_round)

.setLargeIcon(BitmapFactory.decodeResource(getResources(),R.mipmap.ic_launcher))

.setContentIntent(pi)

.setAutoCancel(true)

.build();

notificationManager.notify(1,notification);

break;

default:

break;

}

}

}

<?xml version="1.0" encoding="utf-8"?>

<LinearLayout 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:orientation="vertical"

android:layout_width="match_parent"

android:layout_height="match_parent"

tools:context=".MainActivity">

<Button

android:id="@+id/btn_get"

android:layout_width="match_parent"

android:layout_height="wrap_content"

android:text="开启通知"/>

</LinearLayout>

<?xml version="1.0" encoding="utf-8"?>

<LinearLayout 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">

<TextView

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:text="Notification 页面"

android:textSize="35sp"/>

</LinearLayout>

取消通知的方法

长文本和图片

弹出通知