Android实现Zaker的加载对话框

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[img]http://dl.iteye.com/upload/attachment/0072/9432/90d3eba6-f951-3c2b-a5e9-b9119bb6f14d.png[/img]
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自定义的Dialog：

package com.amaker.dialog;

import android.app.Dialog;
import android.content.Context;
import android.view.LayoutInflater;
import android.view.View;
import android.view.animation.AnimationUtils;
import android.view.animation.RotateAnimation;
import android.widget.ImageView;
import android.widget.TextView;

public class MyProgressDialog extends Dialog {

	private Context context = null;

	private TextView tv_msg;

	public MyProgressDialog(Context context) {
		super(context);
		this.context = context;

	}

	public MyProgressDialog(Context context, boolean cancelable,
			OnCancelListener cancelListener) {

		super(context, cancelable, cancelListener);
		this.context = context;
		// TODO Auto-generated constructor stub
	}

	public MyProgressDialog(Context context, int theme) {

		super(context, theme);
		this.context = context;
		// 加载自己定义的布局
		View view = LayoutInflater.from(context)
				.inflate(R.layout.loading, null);

		ImageView img_loading = (ImageView) view.findViewById(R.id.img_loading);
		ImageView img_close = (ImageView) view.findViewById(R.id.img_close);
		tv_msg = (TextView) view.findViewById(R.id.tv_msg);
		// 加载XML文件中定义的动画
		RotateAnimation rotateAnimation = (RotateAnimation) AnimationUtils
				.loadAnimation(context, R.anim.rotate_refresh_drawable_default);
		// 开始动画
		img_loading.setAnimation(rotateAnimation);
		//为Dialoge设置自己定义的布局
		setContentView(view);
		//为close的那个文件添加事件
		img_close.setOnClickListener(new View.OnClickListener() {

			public void onClick(View v) {
				dismiss();

			}
		});

	}

	public void setMsg(String msg) {

		if (null != tv_msg) {
			tv_msg.setText(msg);
		}
	}

	public void setMsg(int resId) {

		if (null != tv_msg) {
			tv_msg.setText(context.getString(resId));
		}
	}

}

MainActivity:

package com.amaker.dialog;

import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;

public class MainActivity extends Activity {
	MyProgressDialog progressDialog;
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);

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

        btn.setOnClickListener(new OnClickListener() {

			@Override
			public void onClick(View v) {

				progressDialog = new MyProgressDialog(MainActivity.this,  
		                R.style.CustomProgressDialog);  
				progressDialog.show();

			}
		});
    }
}

loading.xml

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

<TextView  
	android:id="@+id/tv_msg" 
    android:layout_width="wrap_content" 
    android:layout_height="wrap_content" 
    android:text="正在加载。。。"
    />
<ImageView 
	android:id="@+id/img_loading" 
	android:layout_height="wrap_content" 
	android:layout_width="wrap_content" 
	android:src="@drawable/test"></ImageView>

<ImageView 
	android:id="@+id/img_close" 
	android:layout_height="wrap_content" 
	android:layout_width="wrap_content" 
	android:src="@drawable/icon"></ImageView>
</LinearLayout>

styles.xml:

<?xml version="1.0" encoding="UTF-8"?>
<resources>
	 <style name="CustomDialog" parent="@android:style/Theme.Dialog">
        <item name="android:windowFrame">@null</item>
        <item name="android:windowIsFloating">true</item>
        <item name="android:windowContentOverlay">@null</item>
        <item name="android:windowAnimationStyle">@android:style/Animation.Dialog</item>
        <item name="android:windowSoftInputMode">stateUnspecified|adjustPan</item>
    </style>

    <style name="CustomProgressDialog" parent="@style/CustomDialog">
        <item name="android:windowBackground">@android:color/transparent</item>
        <item name="android:windowNoTitle">true</item>
    </style>

</resources>

rotate_refresh_drawable_default.xml(动画)

<?xml version="1.0" encoding="utf-8"?>
<rotate xmlns:android="http://schemas.android.com/apk/res/android"
    android:duration="800"
    android:fromDegrees="0.0"
    android:interpolator="@android:anim/linear_interpolator"
    android:pivotX="50.0%"
    android:pivotY="50.0%"
    android:repeatCount="infinite"
    android:toDegrees="360.0" />