PendingIntent 说明
PendingIntent 是一种特殊的 Intent ，字面意思可以解释为延迟的 Intent ，用于在某个事件结束后执行特定的 Action 。从上面带 Action 的通知也能验证这一点，当用户点击通知时，才会执行。
PendingIntent 是 Android 系统管理并持有的用于描述和获取原始数据的对象的标志(引用)。也就是说，即便创建该PendingIntent对象的进程被杀死了，这个PendingItent对象在其他进程中还是可用的。
日常使用中的短信、闹钟等都用到了 PendingIntent
可点击通知+跳转
button2.setOnClickListener(new View.OnClickListener() {
@RequiresApi(api = Build.VERSION_CODES.JELLY_BEAN)
@Override
public void onClick(View view) {
NotificationManager Manager = (NotificationManager) getSystemService(NOTIFICATION_SERVICE);
Notification.Builder builder = new Notification.Builder(MainActivity.this);
builder.setSmallIcon(R.mipmap.ic_launcher);
builder.setContentText("内容");
builder.setContentTitle("标题");
Intent intent = new Intent(MainActivity.this,Main2Activity.class);
PendingIntent pendingIntent = PendingIntent.getActivity(MainActivity.this, 1, intent, PendingIntent.FLAG_ONE_SHOT);
builder.setContentIntent(pendingIntent);
Notification build = builder.build();
Manager.notify(1,build);
}
});
普通通知
//普通
button.setOnClickListener(new View.OnClickListener() {
@RequiresApi(api = Build.VERSION_CODES.JELLY_BEAN)
@Override
public void onClick(View view) {
NotificationManager manager = (NotificationManager) getSystemService(NOTIFICATION_SERVICE);
Notification.Builder builder = new Notification.Builder(MainActivity.this);
builder.setSmallIcon(R.mipmap.ic_launcher);
builder.setContentTitle("标题啊");
builder.setContentText("内容");
builder.setTicker("提示信息");
builder.setContentInfo("附加信息");
//发送相同id就是更新
Notification notification = builder.build();
manager.notify(1,notification);
}
});
可弹出通知
//可弹出
button4.setOnClickListener(new View.OnClickListener() {
@RequiresApi(api = Build.VERSION_CODES.JELLY_BEAN)
@Override
public void onClick(View view) {
NotificationManager manager = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
Notification.Builder builder = new Notification.Builder(MainActivity.this);
builder.setSmallIcon(R.mipmap.ic_launcher);
builder.setContentTitle("我是标题");
builder.setContentText("我是内容");
builder.setAutoCancel(true);
builder.setPriority(Notification.PRIORITY_MAX);
builder.setDefaults(Notification.DEFAULT_ALL);
builder.setTicker("我是提示信息");
builder.setContentInfo("我是符加信息");
Notification build = builder.build();
manager.notify(6,build);
}
});
双击退出(1)
重写onKeyDown方法
public boolean onKeyDown(int keyCode, KeyEvent event) {
if(keyCode==KeyEvent.KEYCODE_BACK && event.getAction()==KeyEvent.ACTION_DOWN){
long millis = System.currentTimeMillis();
if(millis-firstTime>2000){
Toast.makeText(this, "再按一次退出", Toast.LENGTH_SHORT).show();
firstTime=millis;
return true;
}
else {
finish();
}
}
return super.onKeyDown(keyCode, event);
}
双击退出(2)
重写onBackPressed方法
public void onBackPressed() {
long timeMillis = System.currentTimeMillis();
if(timeMillis-firstTime>2000){
Toast.makeText(this, "再按一次退出啊", Toast.LENGTH_SHORT).show();
firstTime=timeMillis;
}
else{
finish();
}
}
自定义通知
//自定义
button3.setOnClickListener(new View.OnClickListener() {
@TargetApi(Build.VERSION_CODES.N)
@RequiresApi(api = Build.VERSION_CODES.JELLY_BEAN)
@Override
public void onClick(View view) {
//获得通知管理者：发送通知 取消通知
NotificationManager manager= (NotificationManager) getSystemService(NOTIFICATION_SERVICE);
//创建构造者
Notification.Builder builder = new Notification.Builder(MainActivity.this);
//3:设置属性 setSamllIcon该属性必须设置
builder.setSmallIcon(R.mipmap.ic_launcher);//设置小图标
builder.setContentTitle("标题");
builder.setContentText("内容");
//设置自定义布局：
RemoteViews remoteViews=new RemoteViews(getPackageName(),R.layout.mydiy);
remoteViews.setTextViewText(R.id.diyTextView,"你不真正的快乐");//给文本设置文字
remoteViews.setImageViewResource(R.id.diyImageView,R.mipmap.a);
builder.setContent(remoteViews);
//发送通知
//参数一 id 通知的id 参数二 通知对象=
manager.notify(9,builder.build());
}
});
进度条通知
//进度条通知
button5.setOnClickListener(new View.OnClickListener() {
@RequiresApi(api = Build.VERSION_CODES.JELLY_BEAN)
@Override
public void onClick(View view) {
final NotificationManager manager = (NotificationManager) getSystemService(NOTIFICATION_SERVICE);
final Notification.Builder builder = new Notification.Builder(MainActivity.this);
//设置属性 setSamllIcon该属性必须设置
builder.setSmallIcon(R.mipmap.a);
builder.setContentTitle("标题");
//参数一 最大值 参数二：当前进度 参数三 是否模糊
// builder.setProgress(100,0,false);
final Timer timer = new Timer();
timer.schedule(new TimerTask() {
int progress;
@RequiresApi(api = Build.VERSION_CODES.JELLY_BEAN)
@Override
public void run() {
builder.setContentText("正在下载"+progress);
builder.setProgress(100,progress,false);
progress+=10;
manager.notify(8,builder.build());
if(progress==100){
builder.setContentText("安装中..."+progress);
builder.setProgress(0,0,true);
manager.notify(8,builder.build());
try {
Thread.sleep(5000);
} catch (InterruptedException e) {
e.printStackTrace();
}
timer.cancel();
manager.cancel(8);
}
}
},0,500);
manager.notify(8,builder.build());
}
});