Demonstrates the use of progress dialogs. : Dialog « UI « Android

1. Android
2. UI
3. Dialog

Demonstrates the use of progress dialogs.

  

/*
 * Copyright (C) 2007 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.example.android.apis.view;

import com.example.android.apis.R;

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

/**
 * Demonstrates the use of progress dialogs.  Uses {@link Activity#onCreateDialog}
 * and {@link Activity#showDialog} to ensure the dialogs will be properly saved
 * and restored.
 */
public class ProgressBar3 extends Activity {

    ProgressDialog mDialog1;
    ProgressDialog mDialog2;

    private static final int DIALOG1_KEY = 0;
    private static final int DIALOG2_KEY = 1;


    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);

        setContentView(R.layout.progressbar_3);

        Button button = (Button) findViewById(R.id.showIndeterminate);
        button.setOnClickListener(new View.OnClickListener() {
            public void onClick(View v) {
                showDialog(DIALOG1_KEY);
            }
        });

        button = (Button) findViewById(R.id.showIndeterminateNoTitle);
        button.setOnClickListener(new View.OnClickListener() {
            public void onClick(View v) {
                showDialog(DIALOG2_KEY);
            }
        });
    }

    @Override
    protected Dialog onCreateDialog(int id) {
        switch (id) {
            case DIALOG1_KEY: {
                ProgressDialog dialog = new ProgressDialog(this);
                dialog.setTitle("Indeterminate");
                dialog.setMessage("Please wait while loading...");
                dialog.setIndeterminate(true);
                dialog.setCancelable(true);
                return dialog;
            }
            case DIALOG2_KEY: {
                ProgressDialog dialog = new ProgressDialog(this);
                dialog.setMessage("Please wait while loading...");
                dialog.setIndeterminate(true);
                dialog.setCancelable(true);
                return dialog;
            }
        }
        return null;
    }
}


//layout/progressbar_3.xml

<?xml version="1.0" encoding="utf-8"?>
<!-- Copyright (C) 2007 The Android Open Source Project

     Licensed under the Apache License, Version 2.0 (the "License");
     you may not use this file except in compliance with the License.
     You may obtain a copy of the License at
  
          http://www.apache.org/licenses/LICENSE-2.0
  
     Unless required by applicable law or agreed to in writing, software
     distributed under the License is distributed on an "AS IS" BASIS,
     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     See the License for the specific language governing permissions and
     limitations under the License.
-->

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical"
    android:layout_width="match_parent"
    android:layout_height="wrap_content">

    <Button android:id="@+id/showIndeterminate"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="progressbar_3_indeterminate" />

    <Button android:id="@+id/showIndeterminateNoTitle"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="progressbar_3_indeterminate_no_title" />

</LinearLayout>

   
    
  

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