Android Studio中使用setStyle方法实现在通知当中显示一段长文字问题

2018-09-19 04:25:05 654 阅读 AI 写同款 · GEO 优化AI 选题数据监测一键分发 ›

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Android Studio中使用setStyle方法实现在通知当中显示一段长文字问题，按照《第一行代码》中操作了，可是并没有实现显示长文字功能，而是空白，什么内容都没有显示，求大佬解答

import android.app.Notification;

import android.app.NotificationManager;

import android.app.PendingIntent;

import android.content.Intent;

import android.graphics.BitmapFactory;

import android.os.Bundle;

import android.support.v7.app.AppCompatActivity;

import android.support.v7.app.NotificationCompat;

import android.view.View;

import android.widget.Button;





public class MainActivity extends AppCompatActivity implements View.OnClickListener {



    @Override

    protected void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        setContentView(R.layout.activity_main);

        Button sendNotice = (Button) findViewById(R.id.send_notice);

        sendNotice.setOnClickListener(this);

    }



    @Override

    public void onClick(View v) {

        switch (v.getId()) {

            case R.id.send_notice:

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

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

                NotificationManager manager = (NotificationManager) getSystemService(NOTIFICATION_SERVICE);

                Notification notification = new NotificationCompat.Builder(this)

                        .setContentTitle("This is content title")

                        .setStyle(new NotificationCompat.BigTextStyle().bigText("Learn how to build notifications, send and sync data, and use voice actions. Get the official Android IDE and developer tools to build apps for Android."))

                        //.setContentText("Learn how to build notifications, send and sync data, and use voice actions. Get the official Android IDE and developer tools to build apps for Android.")

                        .setWhen(System.currentTimeMillis())

                        .setSmallIcon(R.mipmap.ic_launcher)

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

                        .setContentIntent(pi)

                        //.setAutoCancel(true)

                        //.setSound(Uri.fromFile(new File("/system/media/audio/ringtones/Luna.ogg")))

                        //.setVibrate(new long[] {0, 1000, 1000, 1000 })

                        //.setLights(Color.RED, 10000, 1000)

                        //.setDefaults(NotificationCompat.DEFAULT_ALL)

                        //.setStyle(new NotificationCompat.BigTextStyle().bigText("Learn how to build notifications, send and sync data, and use voice actions. Get the official Android IDE and developer tools to build apps for Android."))

                        .build();

                manager.notify(1, notification);

                break;

            default:

                break;

        }

    }

}