自定义dialog窗口，根据坐标可随意设置dialog显示位置，实现了窗口弹出动画

Java代码：

package com.sunxu.org.IndividualityDialog;

import android.app.Activity;

import android.app.Dialog;

import android.content.Context;

import android.os.Bundle;

import android.view.Gravity;

import android.view.View;

import android.view.View.OnClickListener;

import android.view.Window;

import android.view.WindowManager;

import android.widget.Button;

public class IndividualityDialogActivity extends Activity {

/** Called when the activity is first created. */

@Override

public void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.main);

Button btn = (Button)findViewById(R.id.button1);

btn.setOnClickListener(new OnClickListener()

{

public void onClick(View v)

{

//多个Activity嵌套时用this.parent否则异常

new myDialog(IndividualityDialogActivity.this)

.showDialog(R.layout.dialog, 80, 50);

}

});

}

//自定义Dialog

class myDialog extends Dialog{

private Window window = null;

public myDialog(Context context)

{

super(context);

}

public void showDialog(int layoutResID, int x, int y){

setContentView(layoutResID);

windowDeploy(x, y);

//设置触摸对话框意外的地方取消对话框

setCanceledOnTouchOutside(true);

show();

}

//设置窗口显示

public void windowDeploy(int x, int y){

window = getWindow(); //得到对话框

window.setWindowAnimations(R.style.dialogWindowAnim); //设置窗口弹出动画

window.setBackgroundDrawableResource(R.color.vifrification); //设置对话框背景为透明

WindowManager.LayoutParams wl = window.getAttributes();

//根据x，y坐标设置窗口需要显示的位置

wl.x = x; //x小于0左移，大于0右移

wl.y = y; //y小于0上移，大于0下移

//            wl.alpha = 0.6f; //设置透明度

//            wl.gravity = Gravity.BOTTOM; //设置重力

window.setAttributes(wl);

}

}

}

设置窗口弹出，退出动画在res/values下创建style

@anim/dialog_enter_anim

@anim/dialog_exit_anim

在res/anim下创建，设置dialog窗口弹出动画

android:interpolator="@android:anim/accelerate_interpolator"

android:fromXScale="1.0"

android:toXScale="1.0"

android:fromYScale="0.0"

android:toYScale="1.0"

android:pivotX="0%"

android:pivotY="100%"

android:fillAfter="false"

android:duration="400"/>

在res/anim下创建，设置dialog窗口退出动画

android:interpolator="@android:anim/accelerate_interpolator"

android:fromXScale="1.0"

android:toXScale="1.0"

android:fromYScale="1.0"

android:toYScale="0.0"

android:pivotX="0%"

android:pivotY="100%"

android:fillAfter="false"

android:duration="400"/>

在res/values下创建color

#00000000

设置dialog窗口layout

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:orientation="vertical"

android:gravity="center"

android:background="@drawable/dialog_background" >

android:id="@+id/textView1"

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:textSize="50sp"

android:text="Hello" />

main布局

android:layout_width="fill_parent"

android:layout_height="fill_parent"

android:orientation="vertical" >

android:id="@+id/button1"

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:text="点击弹出myDialog" />