Android自定义ProgressDialog

MainActivity如下:

package cn.testprogressdialog;  import android.app.Activity;  import android.app.Dialog;  import android.content.Context;  import android.content.DialogInterface;  import android.content.DialogInterface.OnCancelListener;  import android.os.Bundle;  import android.view.Window;  /**   * Demo描述:   * 自定义ProgressDialog   *    * 备注说明:   * 在此处progressDialog.setOnCancelListener(){}   * 并没有起到按下back键盘使风火轮消失的作用.   * 因为在initDialog(Context context)中设置了   * dialog.setCancelable(false);   * 若需要此功能,注释掉该句代码即可.   */  public class MainActivity extends Activity {   @Override   protected void onCreate(Bundle savedInstanceState) {    super.onCreate(savedInstanceState);    setContentView(R.layout.main);    Dialog progressDialog=initDialog(MainActivity.this);    progressDialog.setOnCancelListener(new OnCancelListener() {     @Override     public void onCancel(DialogInterface dialog) {      dialog.dismiss();      //其余业务逻辑     }    });    progressDialog.show();   }     public Dialog initDialog(Context context) {    Dialog dialog = new DialogSubClass(MainActivity.this, R.style.dialog);    dialog.requestWindowFeature(Window.FEATURE_NO_TITLE);    dialog.setCanceledOnTouchOutside(false);    dialog.setCancelable(false);    return dialog;   }    }

DialogSubClass如下:

package cn.testprogressdialog;  import android.app.Dialog;  import android.content.Context;  import android.os.Bundle;  import android.view.LayoutInflater;  import android.view.View;  public class DialogSubClass extends Dialog {   public DialogSubClass(Context context, int theme) {    super(context, theme);   }     protected DialogSubClass(Context context, boolean cancelable,OnCancelListener cancelListener) {    super(context, cancelable, cancelListener);   }     public DialogSubClass(Context context) {    super(context);   }      @Override   protected void onCreate(Bundle savedInstanceState) {    super.onCreate(savedInstanceState);    View view = LayoutInflater.from(getContext()).inflate(R.layout.dialoglayout, null);    setContentView(view);   }      @Override   public void show() {    super.show();   }      @Override   public void dismiss() {    super.dismiss();   }      public void setMsg(String txt) {       }    }

dialoglayout.xml如下:

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"      xmlns:tools="http://schemas.android.com/tools"      android:layout_width="wrap_content"      android:layout_height="wrap_content" >        <ProgressBar          android:id="@+id/progressBar"          android:layout_width="wrap_content"          android:layout_height="wrap_content"          android:layout_centerHorizontal="true"          />        <TextView          android:layout_width="wrap_content"          android:layout_height="wrap_content"          android:text="loading"          android:textSize="20sp"          android:layout_below="@id/progressBar"          android:layout_marginTop="-5dip"          android:layout_centerHorizontal="true"          android:textColor="@android:color/black"           />    </RelativeLayout>

styles.xml如下:

<resources>        <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>      </style>    </resources>

main.xml如下:

<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="测试自定义ProgressDialog"          android:layout_centerHorizontal="true"          android:textSize="24sp"      />    </RelativeLayout>