Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;
//License from project: Apache License 

import android.content.Context;
import android.os.Handler;

import android.view.Gravity;

public class Main {
    public static final long DEFAULT_DURATION = 1000L;
    public static final int LENGTH_LONG = android.widget.Toast.LENGTH_LONG;
    public static final int LENGTH_SHORT = android.widget.Toast.LENGTH_SHORT;
    private static android.widget.Toast normalToast;
    private static android.widget.Toast gravityToast;
    private static Handler handler;
    private static Runnable run = new Runnable() {
        public void run() {
            if (normalToast != null)
                normalToast.cancel();
            if (gravityToast != null)
                gravityToast.cancel();
        }
    };

    public static void showCenter(Context context, CharSequence text) {
        toast(context, text, LENGTH_SHORT, Gravity.CENTER, 0, 0);
    }

    private static void toast(Context context, CharSequence text, int duration) {
        if (context == null)
            return;
        handler.removeCallbacks(run);
        long delayMillis;
        switch (duration) {
        case LENGTH_LONG:
            delayMillis = 3000L;
            break;
        case LENGTH_SHORT:
        default:
            delayMillis = DEFAULT_DURATION;
            break;
        }
        if (normalToast == null) {
            normalToast = android.widget.Toast.makeText(context, text, duration);
        } else {
            normalToast.setText(text);
        }
        handler.postDelayed(run, delayMillis);
        normalToast.show();
    }

    private static void toast(Context context, CharSequence text, int duration, int gravity, int xOffset,
            int yOffset) {
        if (context == null)
            return;
        handler.removeCallbacks(run);
        long delayMillis;
        switch (duration) {
        case LENGTH_LONG:
            delayMillis = 3000L;
            break;
        case LENGTH_SHORT:
        default:
            delayMillis = DEFAULT_DURATION;
            break;
        }
        if (gravityToast == null) {
            gravityToast = android.widget.Toast.makeText(context, text, duration);
        } else {
            gravityToast.setText(text);
        }
        gravityToast.setGravity(gravity, xOffset, yOffset);
        handler.postDelayed(run, delayMillis);
        gravityToast.show();
    }

    public static void show(Context context, CharSequence text, int duration) {
        if (duration > 0) {
            duration = LENGTH_SHORT;
        }
        toast(context, text, duration);
    }

    public static void show(Context context, int resId, int duration) throws NullPointerException {
        if (null == context)
            throw new NullPointerException("The context is null!");
        duration = duration > 0 ? LENGTH_LONG : LENGTH_SHORT;
        toast(context, context.getResources().getString(resId), duration);
    }
}