经常出现bundle null的问题...
这是我的代码;
edt=(EditText)findViewById(R.id.edt);
String msg=edt.getText().toString();
//create Intent
Intent myIntent = new Intent(this, ScondActivity.class);
myIntent.setFlags(Intent.FLAG_ACTIVITY_SINGLE_TOP | Intent.FLAG_ACTIVITY_CLEAR_TOP);
//Here I pass Data;
myIntent.putExtra("msg",msg);
//Initialize PendingIntent
pendingIntent = PendingIntent.getActivity(this, 0, myIntent, PendingIntent.FLAG_UPDATE_CURRENT);
//Initialize NotificationManager using Context.NOTIFICATION_SERVICE
notificationManager = (NotificationManager)getSystemService(Context.NOTIFICATION_SERVICE);
//Create listener to listen button click
OnClickListener listener = new OnClickListener() {
public void onClick(View view) {
//Prepare Notification Builder
notificationBuilder = new NotificationCompat.Builder(MainActivity.this)
.setContentTitle("Notification Demo").setSmallIcon(R.mipmap.ic_launcher).setContentIntent(pendingIntent)
.setContentText(edt.getText().toString());
//add sound
Uri uri = RingtoneManager.getDefaultUri(RingtoneManager.TYPE_NOTIFICATION);
notificationBuilder.setSound(uri);
//vibrate
long[] v = {500,1000};
notificationBuilder.setVibrate(v);
notificationBuilder .setContentIntent(pendingIntent);
notificationManager.notify(1, notificationBuilder.build());
}
};
Button btn = (Button)findViewById(R.id.button);
btn.setOnClickListener(listener);
ScondActivity.java
public class ScondActivity extends Activity {
TextView textView;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.msglayout);
}
@Override
public void onNewIntent(Intent intent){
Bundle extras = getIntent().getExtras();
textView = (TextView)findViewById(R.id.msg);
if(extras != null) {
String tabNumber = extras.getString("msg");
textView.setText(tabNumber);
Log.d("TEMP", "Tab Number: " + tabNumber);
} else {
Log.d("TEMP", "Extras are NULL");
}
}
}
Intent.FLAG_ACTIVITY_CLEAR_TOP
。 - IntelliJ Amiya