Android仿微信进度弹出框的实现方法

package com.ruru.dialogproject;
import android.app.Activity;
import android.os.Bundle;
import android.view.View;
public class MainActivity extends Activity implements Runnable {
LoadingDialog dialog;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
findViewById(R.id.btn_name).setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
dialog = new LoadingDialog(MainActivity.this);
dialog.setCanceledOnTouchOutside(false);
dialog.show();
new Thread(MainActivity.this).start();
}
});
}
public void run() {
try {
Thread.sleep(5000);
dialog.dismiss();
} catch (InterruptedException e) {
e.printStackTrace();
}
}
}

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:id="@+id/activity_main"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context="com.ruru.dialogproject.MainActivity">
<Button
android:id="@+id/btn_name"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="Hello World!" />
</RelativeLayout>

package com.ruru.dialogproject;
import android.app.Dialog;
import android.content.Context;
import android.os.Bundle;
import android.widget.LinearLayout;
import android.widget.TextView;
/**
* Created by 27c1 on 2017/1/4.
*/
public class LoadingDialog extends Dialog {
private TextView tv;
/**
* style很关键
*/
public LoadingDialog(Context context) {
super(context, R.style.loadingDialogStyle);
}
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.dialog_loading);
tv = (TextView) findViewById(R.id.tv);
tv.setText("正在上传.....");
LinearLayout linearLayout = (LinearLayout) this.findViewById(R.id.LinearLayout);
linearLayout.getBackground().setAlpha(210);
}
}

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<?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:background="@android:color/transparent"
android:orientation="vertical">
<LinearLayout
android:id="@+id/LinearLayout"
android:layout_width="160dp"
android:layout_height="160dp"
android:background="@drawable/yuanjiao"
android:gravity="center"
android:orientation="vertical">
<ProgressBar
android:id="@+id/progressBar1"
style="?android:attr/progressBarStyleInverse"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:background="@android:color/transparent" />
<TextView
android:id="@+id/tv"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:paddingTop="10dp"
android:textColor="#fff" />
</LinearLayout>
</LinearLayout>

<style name="loadingDialogStyle" parent="android:Theme.Dialog">
<item name="android:windowBackground">@android:color/transparent</item><!--设置dialog的背景-->
<item name="android:windowFrame">@null</item><!--Dialog的windowFrame框为无-->
<item name="android:windowNoTitle">true</item><!--是否显示title-->
<item name="android:windowIsFloating">true</item><!--是否浮现在activity之上-->
<item name="android:windowIsTranslucent">true</item><!--是否半透明-->
<item name="android:windowContentOverlay">@null</item><!--是否半透明-->
<item name="android:windowAnimationStyle">@android:style/Animation.Dialog</item><!-- 对话框是否有遮盖 -->
<item name="android:backgroundDimEnabled">false</item><!--背景是否模糊显示-->
<item name="android:backgroundDimAmount">0.6</item><!--背景的灰度-->
</style>

<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android">
<solid android:color="#86222222" />
<corners
android:bottomLeftRadius="10dp"
android:bottomRightRadius="10dp"
android:topLeftRadius="10dp"
android:topRightRadius="10dp" />
</shape>

<item name="android:windowFrame">@null</item> ：Dialog的windowFrame框为无
<item name="android:windowIsFloating">true</item>：是否浮现在activity之上
<item name="android:windowIsTranslucent">false</item>:是否半透明
<item name="android:windowNoTitle">true</item>:是否显示title
<item name="android:windowBackground">@drawable/dia_bg</item>:设置dialog的背景
<item name="android:backgroundDimEnabled">true</item>背景是否模糊显示
<item name="android:backgroundDimAmount">0.6</item>背景的灰度