alvinalexander.com | career | drupal | java | mac | mysql | perl | scala | uml | unix  

Android example source code file (ToastTest.java)

This example Android source code file (ToastTest.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Android by Example" TM.

Java - Android tags/keywords

android, error, filereader, fill_horizontal, gravity, handler, io, left, make, os, override, show, string, tag, test, toast, toasttest, ui, view, widget

The ToastTest.java Android example source code

/*
 * Copyright (C) 2008 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.android.statusbartest;

import android.app.ListActivity;
import android.app.PendingIntent;
import android.widget.ArrayAdapter;
import android.view.View;
import android.widget.ListView;
import android.content.Intent;
import android.os.Bundle;
import android.os.Handler;
import android.util.Log;
import android.net.Uri;
import android.os.SystemClock;
import android.view.Gravity;
import android.widget.RemoteViews;
import android.widget.Toast;
import android.widget.TextView;
import android.os.PowerManager;

import java.io.FileReader;
import java.io.IOException;

public class ToastTest extends TestActivity
{
    private final static String TAG = "ToastTest";

    Handler mHandler = new Handler();
    Toast mToast1;
    Toast mToast2;

    @Override
    protected String tag() {
        return TAG;
    }

    @Override
    protected Test[] tests() {
        return mTests;
    }

    private static String readFile(String fn) {
        FileReader f;
        int len;

        f = null;
        try {
            f = new FileReader(fn);
            String s = "";
            char[] cbuf = new char[200];
            while ((len = f.read(cbuf, 0, cbuf.length)) >= 0) {
                s += String.valueOf(cbuf, 0, len);
            }
            return s;
        } catch (IOException ex) {
            return "ERROR";
        } finally {
            if (f != null) {
                try {
                    f.close();
                } catch (IOException ex) {
                    return "ERROR!";
                }
            }
        }
    }

    private Test[] mTests = new Test[] {
        new Test("Read lights") {
            public void run()
            {
                String text = "freq=" + readFile("/sys/class/leds/red/device/grpfreq")
                        + "\npwm=" + readFile("/sys/class/leds/red/device/grppwm");
                mToast1 = Toast.makeText(ToastTest.this, text, Toast.LENGTH_SHORT);
                mToast1.show();
            }
        },

        new Test("Make Toast #1") {
            public void run()
            {
                mToast1 = Toast.makeText(ToastTest.this, "hi 1", Toast.LENGTH_SHORT);
            }
        },

        new Test("Show Toast #1") {
            public void run()
            {
                mToast1.show();
            }
        },

        new Test("Update Toast #1") {
            public void run()
            {
                TextView view = new TextView(ToastTest.this);
                view.setText("replaced!");
                mToast1.setView(view);
                mToast1.show();
            }
        },

        new Test("Make Toast #2") {
            public void run()
            {
                mToast2 = Toast.makeText(ToastTest.this, "hi 2", Toast.LENGTH_SHORT);
            }
        },

        new Test("Show Toast #2") {
            public void run()
            {
                mToast2.show();
            }
        },

        new Test("Gravity Toast LEFT") {
            public void run()
            {
                Toast toast = Toast.makeText(ToastTest.this, "LEFT", Toast.LENGTH_SHORT);
                toast.setGravity(Gravity.LEFT, 0, 0);
                toast.show();
            }
        },

        new Test("Gravity Toast FILL_HORIZONTAL") {
            public void run()
            {
                Toast toast = Toast.makeText(ToastTest.this, "FILL_HORIZONTAL",
                        Toast.LENGTH_SHORT);
                toast.setGravity(Gravity.FILL_HORIZONTAL, 0, 0);
                toast.show();
            }
        },

    };
}

Other Android examples (source code examples)

Here is a short list of links related to this Android ToastTest.java source code file:

... this post is sponsored by my books ...

#1 New Release!

FP Best Seller

 

new blog posts

 

Copyright 1998-2021 Alvin Alexander, alvinalexander.com
All Rights Reserved.

A percentage of advertising revenue from
pages under the /java/jwarehouse URI on this website is
paid back to open source projects.