你好，我最近启动了android应用程序开发人员。所以你可以说我是一个初级开发人员。我正在尝试开发一个基本的通知应用程序。此应用程序现在能够显示通知，但点击虚拟设备顶部的通知图标没有任何反应。问题是它应该启动一个名为NotificationView的新活动，但它无法启动它。
MainActivity.java
package com.example.notification1;
import android.app.Notification;
import android.app.NotificationManager;
import android.app.PendingIntent;
import android.content.Intent;
import android.support.v7.app.ActionBarActivity;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.Button;
public class MainActivity extends ActionBarActivity {
Button b1;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
b1=(Button)findViewById(R.id.button);
b1.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Notify("You've received new message","");
}
});
}
private void Notify(String notificationTitle, String notificationMessage){
NotificationManager notificationManager = (NotificationManager) getSystemService(NOTIFICATION_SERVICE);
@SuppressWarnings("deprecation")
Notification notification = new Notification(R.drawable.ic_launcher,"New Message", System.currentTimeMillis());
Intent notificationIntent = new Intent(this,NotificationView.class);
PendingIntent pendingIntent = PendingIntent.getActivity(this, 0,notificationIntent, 0);
notification.setLatestEventInfo(MainActivity.this, notificationTitle,notificationMessage, pendingIntent);
notificationManager.notify(9999, notification);
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.main, menu);
return true;
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
// Handle action bar item clicks here. The action bar will
// automatically handle clicks on the Home/Up button, so long
// as you specify a parent activity in AndroidManifest.xml.
int id = item.getItemId();
//noinspection SimplifiableIfStatement
if (id == R.id.action_settings) {
return true;
}
return super.onOptionsItemSelected(item);
}
}
NotificationView.java
package com.example.notification1;
import android.os.Bundle;
import android.app.Activity;
public class NotificationView extends Activity{
@Override
public void onCreate(Bundle savedInstanceState){
super.onCreate(savedInstanceState);
setContentView(R.layout.notification);
}
}
的AndroidManifest.xml
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.notification1"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk
android:minSdkVersion="8"
android:targetSdkVersion="18" />
<application
android:allowBackup="true"
android:icon="@drawable/ic_launcher"
android:label="@string/app_name"
android:theme="@style/AppTheme" >
<activity
android:name=".MainActivity"
android:label="@string/app_name" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity
android:name=".NotificationView"
android:label="@string/app_name" >
</activity>
</application>
</manifest>
activity_main.xml中
<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"
android:paddingBottom="@dimen/activity_vertical_margin"
android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin"
tools:context="MainActivity">
<TextView
android:id="@+id/textView1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Notification Example"
android:layout_alignParentTop="true"
android:layout_centerHorizontal="true"
android:textSize="30dp" />
<TextView
android:id="@+id/textView2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Tutorials point "
android:textColor="#ff87ff09"
android:textSize="30dp"
android:layout_below="@+id/textView1"
android:layout_centerHorizontal="true"
android:layout_marginTop="48dp" />
<ImageButton
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="@+id/imageButton"
android:src="@drawable/ic_launcher"
android:layout_below="@+id/textView2"
android:layout_centerHorizontal="true"
android:layout_marginTop="42dp" />
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Notification"
android:id="@+id/button"
android:layout_marginTop="62dp"
android:layout_below="@+id/imageButton"
android:layout_centerHorizontal="true" />
</RelativeLayout>
notification.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent" >
<TextView
android:layout_width="fill_parent"
android:layout_height="400dp"
android:text="Hi, Your Detailed notification view goes here...." />
</LinearLayout>
这是点击通知图标
期间的logcat数据11-19 06:05:44.924: I/Choreographer(1214): Skipped 32 frames! The application may be doing too much work on its main thread.
11-19 06:05:44.955: V/PanelView(1271): animationTick called with dtms=0; nothing to do (h=0.19166172 v=0.0)
11-19 06:05:44.955: I/Choreographer(1271): Skipped 152 frames! The application may be doing too much work on its main thread.
11-19 06:05:45.004: V/PanelView(1271): animationTick called with dtms=0; nothing to do (h=0.04166171 v=-1500.0)
11-19 06:05:45.014: V/PanelBar(1271): onTouch: no panel for touch at (14,11)
11-19 06:05:45.024: I/Choreographer(1271): Skipped 69 frames! The application may be doing too much work on its main thread.
11-19 06:05:45.054: I/Choreographer(1214): Skipped 39 frames! The application may be doing too much work on its main thread.
11-19 06:05:45.084: I/Choreographer(1271): Skipped 66 frames! The application may be doing too much work on its main thread.
11-19 06:05:45.154: W/InputMethodManagerService(1214): Window already focused, ignoring focus gain of: com.android.internal.view.IInputMethodClient$Stub$Proxy@b4e4dbd8 attribute=null, token = android.os.BinderProxy@b4a95d50
11-19 06:05:45.164: I/Choreographer(1271): Skipped 59 frames! The application may be doing too much work on its main thread.
11-19 06:05:45.174: I/Choreographer(1214): Skipped 53 frames! The application may be doing too much work on its main thread.
11-19 06:06:00.170: I/Choreographer(1271): Skipped 36 frames! The application may be doing too much work on its main thread.
答案 0 :(得分：0)
不要制作静态通知ID。这是个坏主意。
notificationManager.notify(9999, notification);
创建类似的东西，例如：
int notificationId = System.currentTimeMillis()/1000;
notificationManager.notify(notificationId, notification);
它一直对我有用。有关pendingIntent example
的通知的更多信息让我知道它是否适合你;）
答案 1 :(得分：0)
尝试使用NotificationCompat，你会在不同设备上得到更好的支持，我写了这篇文章：http://alexzh.com/tutorials/notification-for-android/
答案 2 :(得分：0)
这是一个例子。并确保您已在应用模块的com.android.support:appcompat-v7中编译了build.gradle。
NotificationManager mNotificationManager = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
Intent intentNotif = new Intent(this, NotificationView.class);
intentNotif.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP | Intent.FLAG_ACTIVITY_SINGLE_TOP);
PendingIntent pendIntent = PendingIntent.getActivity(this, 0, intentNotif, PendingIntent.FLAG_UPDATE_CURRENT);
NotificationCompat.Builder mBuilder = new NotificationCompat.Builder(this)
.setSmallIcon(R.drawable.ic_launcher)
.setAutoCancel(true)
.setOngoing(false)
.setContentIntent(pendIntent)
.setContentTitle("Title here")
.setContentText("Notification content!")
.setTicker("This is ticker!");
int id = 1234;
mNotificationManager.notify(id, mBuilder.build());
答案 3 :(得分：0)
我运行了您的代码，我可以启动NotificationView而无需更改代码中的任何内容。
我想您可能错过了NotificationView文件中的AndroidManifest.xml声明。必须在AndroidManifest.xml中声明所有活动。您的AndroidManifest.xml必须如下所示：
<application
android:allowBackup="true"
android:icon="@drawable/ic_launcher"
android:label="@string/app_name"
android:theme="@style/AppTheme" >
<activity
android:name=".MainActivity"
android:label="@string/app_name" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity
android:name=".NotificationView"
android:label="@string/app_name" />
</application>
MainActivity已经宣布，您只需声明NotificationView即可。希望这能解决<activity>标记中的问题。