progressbar1.java

Google s android SDK

/* 
 * Copyright (C) 2007 Google Inc.
 *
 * 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.google.android.samples.view;

import com.google.android.samples.R;

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


/**
 * Demonstrates how to use progress bars as widgets and in the title bar.
 * Demonstrates the use of the two different sizes for progress bars.
 */
public class ProgressBar1 extends Activity {
    @Override
    protected void onCreate(Bundle icicle) {
        super.onCreate(icicle);

        requestWindowFeature(Window.FEATURE_PROGRESS);
        setContentView(R.layout.progressbar_1);
        getWindow().setFeatureInt(Window.FEATURE_PROGRESS,
                Window.PROGRESS_VISIBILITY_ON);
        getWindow().setFeatureInt(Window.FEATURE_PROGRESS, 5000);

        final ProgressBar progress = (ProgressBar) findViewById(R.id.progress_big);
        final ProgressBar progressSmall = (ProgressBar) findViewById(R.id.progress_small);

        Button button = (Button) findViewById(R.id.increase);
        button.setOnClickListener(new Button.OnClickListener() {
            public void onClick(View v) {
                progress.incrementProgressBy(1);
                progressSmall.incrementProgressBy(1);
                // window's progress is in range 0..10000
                getWindow().setFeatureInt(Window.FEATURE_PROGRESS,
                        10000 * progressSmall.getProgress() / 100);
            }
        });

        button = (Button) findViewById(R.id.decrease);
        button.setOnClickListener(new Button.OnClickListener() {
            public void onClick(View v) {
                progress.incrementProgressBy(-1);
                progressSmall.incrementProgressBy(-1);
                // window's progress is in range 0..10000
                getWindow().setFeatureInt(Window.FEATURE_PROGRESS,
                        10000 * progressSmall.getProgress() / 100);
            }
        });
    }
}