Log.i is not showing in code

Question

i write a simple code in andorid

package com.hello.stringtest;

import android.os.Bundle;
import android.support.design.widget.FloatingActionButton;
import android.support.design.widget.Snackbar;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.Toolbar;
import android.util.Log;
import android.view.View;
import android.view.Menu;
import android.view.MenuItem;
import android.widget.Toast;

public class MainActivity extends AppCompatActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
        setSupportActionBar(toolbar);

        FloatingActionButton fab = (FloatingActionButton) findViewById(R.id.fab);
        fab.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                Snackbar.make(view, "Replace with your own action", Snackbar.LENGTH_LONG)
                        .setAction("Action", null).show();
            }
        });
        String x = "\r\nHello\r\nHello1\r\nHello2";
        Log.i("Hello", x);
        Toast.makeText(this,x,Toast.LENGTH_LONG).show();
    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        // Inflate the menu; this adds items to the action bar if it is present.
        getMenuInflater().inflate(R.menu.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);
    }
}

when i run this application i was expecting in Log line separated Hello Hello1 Hello2

but there is nothing in Logcat table .can anyone please explain why it's not showing in Logcat.

You might have activated any filter on the logcat windows. (Android Studio). — theapache64, Feb 04 '16 at 12:41

score 4 · Accepted Answer · edited May 23 '17 at 11:51

4

When I try following code

    Log.i("ACTIVITY1", "\rCreated");
    Log.i("ACTIVITY2", "\nCreated");

only ACTIVITY2 appears in Logcat. I guess you issue is related to \r. Remove \r from your String x. Try \n instead.

Also see this. \r seems to be for old Mac OS versions.

edited May 23 '17 at 11:51

Community

1
1

answered Feb 04 '16 at 12:43

AlbAtNf

3,859
3
25
29

This solved my problem, thx. I am re-directing the output of a command line tool to logcat, and I could not get it to display. Turns out "Log" was silently throwing away my data (which had \r line endings) a simple addition of .replace("\r", "") to the String fixed it. – kshepherd Aug 27 '16 at 10:26

score -1 · Answer 2 · answered Feb 04 '16 at 12:43

That's because by default the Log.i takes up less priority when compared to log.d. TO check it out change your logcat window to info from debug here you can get a complete reference of the priority

The priority is one of the following character values, ordered from lowest to highest priority:
V — Verbose (lowest priority)
D — Debug
I — Info
W — Warning
E — Error
F — Fatal
S — Silent (highest priority, on which nothing is ever printed)

also this link might be useful http://developer.android.com/tools/debugging/debugging-log.html#startingLogcat

Log.i is not showing in code

2 Answers2