android 自定义dialog,窗口动画，

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

<?xml version="1.0" encoding="utf-8"?>


<resources>
<style name="dialogWindowAnim" parent="android:Animation" mce_bogus="1">
<item name="android:windowEnterAnimation">@anim/dialog_enter_anim</item>
<item name="android:windowExitAnimation">@anim/dialog_exit_anim</item>
</style>

</resources>

在res/anim下创建，设置dialog窗口弹出动画

<?xml version="1.0" encoding="utf-8"?>


<set xmlns:android="http://schemas.android.com/apk/res/android">
<scale
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"/>
</set>

在res/anim下创建，设置dialog窗口退出动画

<?xml version="1.0" encoding="utf-8"?>

<set xmlns:android="http://schemas.android.com/apk/res/android">
<scale
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"/>
</set>

在res/values下创建color

<?xml version="1.0" encoding="utf-8"?>
<resources>
<color name="vifrification">#00000000</color> 
</resources>

设置dialog窗口layout

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="vertical"
android:gravity="center"
android:background="@drawable/dialog_background" >

<TextView
android:id="@+id/textView1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textSize="50sp"
android:text="Hello" />

</LinearLayout>

main布局

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical" >

<Button
android:id="@+id/button1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="点击弹出myDialog" />
</LinearLayout>

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