Android 自定义Toast,不使用系统Toast

package com.example.messageboxtest;

import android.app.Activity;
import android.content.Context;
import android.os.Handler;
import android.view.Gravity;
import android.view.View;
import android.view.ViewGroup;
import android.view.animation.AlphaAnimation;
import android.view.animation.Animation;
import android.widget.LinearLayout;
import android.widget.TextView;
/**
*
* @author chaowen
*
*/
public class MyMsgBox {

private static final int ANIMATION_DURATION = 600;

private int HIDE_DELAY = 5000;

private View mContainer;

private int gravity = Gravity.CENTER;

private TextView mTextView;

private Handler mHandler;

private AlphaAnimation mFadeInAnimation;

private AlphaAnimation mFadeOutAnimation;

public MyMsgBox(Context context, int HIDE_DELAY, int gravity) {
ViewGroup container = (ViewGroup) ((Activity) context)
.findViewById(android.R.id.content);
View v = ((Activity) context).getLayoutInflater().inflate(
R.layout.newmb__messagebar, container);
this.HIDE_DELAY = HIDE_DELAY;
this.gravity = gravity;
init(v);
}

private void init(View v) {
mContainer = v.findViewById(R.id.mbContainer);
mContainer.setVisibility(View.GONE);
mTextView = (TextView) v.findViewById(R.id.mbMessage);
mFadeInAnimation = new AlphaAnimation(0.0f, 1.0f);
mFadeOutAnimation = new AlphaAnimation(1.0f, 0.0f);
mFadeOutAnimation.setDuration(ANIMATION_DURATION);
mFadeOutAnimation
.setAnimationListener(new Animation.AnimationListener() {
@Override
public void onAnimationStart(Animation animation) {
}

@Override
public void onAnimationEnd(Animation animation) {
mContainer.setVisibility(View.GONE);
}

@Override
public void onAnimationRepeat(Animation animation) {
}
});

mHandler = new Handler();

}

public void show(String message) {
mContainer.setVisibility(View.VISIBLE);

((LinearLayout) mContainer).setGravity(gravity
| Gravity.CENTER_VERTICAL);

mTextView.setText(message);

mFadeInAnimation.setDuration(ANIMATION_DURATION);

mContainer.startAnimation(mFadeInAnimation);
mHandler.postDelayed(mHideRunnable, HIDE_DELAY);
}

private final Runnable mHideRunnable = new Runnable() {
@Override
public void run() {
mContainer.startAnimation(mFadeOutAnimation);
}
};

}

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/mbContainer"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_margin="10dp"
android:gravity="bottom"
android:orientation="vertical" >

<LinearLayout
style="@style/bgTheme"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_margin="10dp"
android:gravity="bottom"
android:orientation="vertical" >

<TextView
android:id="@+id/mbMessage"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="Test"
android:textColor="@drawable/white" />
</LinearLayout>

</LinearLayout>

MyMsgBox m = new MyMsgBox(arg0.getContext(), 5000,
Gravity.BOTTOM);
m.show("这是一个性化Toast");