ProgressDialog(四)——改变系统自带ProgressDialog的文字大小

package com.example.ttt;

import android.app.Activity;
import android.app.ProgressDialog;
import android.os.Bundle;
import android.view.Window;
/**
* Demo描述:
* 改变系统自带ProgressDialog的文字大小
*
* 改变方式:
* 为ProgressDialog设置一个style即可
* 参见styles.xml
*
*/
public class MainActivity extends Activity {

@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);

//为此ProgressDialog指定style
ProgressDialog dialog = new ProgressDialog(this,R.style.dialog);
dialog.requestWindowFeature(Window.FEATURE_NO_TITLE);
dialog.setCanceledOnTouchOutside(false);
dialog.setMessage("loading");
dialog.setCancelable(false);
dialog.show();

}

}

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
>

<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/hello_world"
android:layout_centerHorizontal="true"
/>

</RelativeLayout>

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

<style name="AppBaseTheme" parent="android:Theme.Light">

</style>

<style name="AppTheme" parent="AppBaseTheme">
</style>

<style name="dialog" parent="@android:style/Theme.Dialog">
<item name="android:windowFrame">@null</item>
<item name="android:windowIsFloating">true</item>
<item name="android:windowIsTranslucent">true</item>
<item name="android:windowNoTitle">true</item>
<item name="android:windowBackground">@android:color/transparent</item>
<item name="android:backgroundDimEnabled">true</item>
<item name="android:windowContentOverlay">@null</item>
<item name="android:textSize">25sp</item>
</style>

</resources>