Android Open Source - Android-DoubleProgressBar Double Progress Dialog

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License

The source code is released under:

Apache License

Java Source Code

package com.simaomata.common;
/*from w ww  .j av  a 2s  .c o m*/
/*
 * 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.
 */

import android.app.AlertDialog;
import android.content.Context;
import android.graphics.drawable.Drawable;
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.text.Spannable;
import android.text.SpannableString;
import android.text.style.StyleSpan;
import android.view.LayoutInflater;
import android.view.View;
import android.widget.ProgressBar;
import android.widget.TextView;
import com.simaomata.R;

import java.text.NumberFormat;

/**
 * <p>A dialog showing a progress indicator and an optional text message or view.
 * Only a text message or a view can be used at the same time.</p>
 * <p>The dialog can be made cancelable on back key press.</p>
 * <p>The progress range is 0..10000.</p>
 */
public class DoubleProgressDialog extends AlertDialog {

    private ProgressBar mProgress;
    private ProgressBar mSecondaryProgress;

    private TextView mProgressNumber;
    private String mProgressNumberFormat;
    private TextView mProgressPercent;
    private NumberFormat mProgressPercentFormat;

    private TextView mSecondaryProgressNumber;
    private TextView mSecondaryProgressPercent;

    private int mMax;
    private int mProgressVal;
    private int mSecondaryProgressVal;
    private int mIncrementBy;
    private int mIncrementSecondaryBy;
    private Drawable mProgressDrawable;
    private Drawable mIndeterminateDrawable;
    private CharSequence mMessage;
    private boolean mIndeterminate;

    private boolean mHasStarted;
    private Handler mViewUpdateHandler;

    private Context mContext;

    public DoubleProgressDialog(Context context) {
        super(context);

        this.mContext = context;
    }

    public DoubleProgressDialog(Context context, int theme) {
        super(context, theme);
        this.mContext = context;
        
    }

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        LayoutInflater inflater = LayoutInflater.from(mContext);

        /* Use a separate handler to update the text views as they
         * must be updated on the same thread that created them.
         */
        mViewUpdateHandler = new Handler() {
            @Override
            public void handleMessage(Message msg) {
                super.handleMessage(msg);

                /* Update the number and percent */
                int progress = mProgress.getProgress();
                int max = mProgress.getMax();
                double percent = (double) progress / (double) max;
                String format = mProgressNumberFormat;
                mProgressNumber.setText(String.format(format, progress, max));
                SpannableString tmp = new SpannableString(mProgressPercentFormat.format(percent));
                tmp.setSpan(new StyleSpan(android.graphics.Typeface.BOLD),
                        0, tmp.length(), Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
                mProgressPercent.setText(tmp);

                /* Update the number and percent of the second bar */
                progress = mSecondaryProgress.getSecondaryProgress();
                max = mProgress.getMax(); // Use the same max a the top bar
                percent = (double) progress / (double) max;
                mSecondaryProgressNumber.setText(String.format(format, progress, max));
                tmp = new SpannableString(mProgressPercentFormat.format(percent));
                tmp.setSpan(new StyleSpan(android.graphics.Typeface.BOLD),
                        0, tmp.length(), Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
                mSecondaryProgressPercent.setText(tmp);
            }
        };
        View view = inflater.inflate(R.layout.alert_dialog_double_progress, null);
        mProgress = (ProgressBar) view.findViewById(R.id.progress);
        mSecondaryProgress = (ProgressBar) view.findViewById(R.id.secondaryProgress);

        mProgressNumber = (TextView) view.findViewById(R.id.progress_number);
        mProgressNumberFormat = "%d/%d";
        mProgressPercent = (TextView) view.findViewById(R.id.progress_percent);
        mProgressPercentFormat = NumberFormat.getPercentInstance();
        mProgressPercentFormat.setMaximumFractionDigits(0);

        mSecondaryProgressNumber = (TextView) view.findViewById(R.id.secondary_progress_number);
        mSecondaryProgressPercent = (TextView) view.findViewById(R.id.secondary_progress_percent);

        setView(view);

        if (mMax > 0) {
            setMax(mMax);
        }
        if (mProgressVal > 0) {
            setProgress(mProgressVal);
        }
        if (mSecondaryProgressVal > 0) {
            setSecondaryProgress(mSecondaryProgressVal);
        }
        if (mIncrementBy > 0) {
            incrementProgressBy(mIncrementBy);
        }
        if (mIncrementSecondaryBy > 0) {
            incrementSecondaryProgressBy(mIncrementSecondaryBy);
        }
        if (mProgressDrawable != null) {
            setProgressDrawable(mProgressDrawable);
        }
        if (mIndeterminateDrawable != null) {
            setIndeterminateDrawable(mIndeterminateDrawable);
        }
        if (mMessage != null) {
            setMessage(mMessage);
        }
        setIndeterminate(mIndeterminate);
        onProgressChanged();
        super.onCreate(savedInstanceState);
    }

    @Override
    public void onStart() {
        super.onStart();
        mHasStarted = true;
    }

    @Override
    protected void onStop() {
        super.onStop();
        mHasStarted = false;
    }

    public void setProgress(int value) {
        if (mHasStarted) {
            mProgress.setProgress(value);
            onProgressChanged();
        } else {
            mProgressVal = value;
        }
    }

    public void setSecondaryProgress(int secondaryProgress) {
        if (mSecondaryProgress != null) {
            mSecondaryProgress.setSecondaryProgress(secondaryProgress);
            onProgressChanged();
        } else {
            mSecondaryProgressVal = secondaryProgress;
        }
    }

    public int getProgress() {
        if (mProgress != null) {
            return mProgress.getProgress();
        }
        return mProgressVal;
    }

    public int getSecondaryProgress() {
        if (mSecondaryProgress != null) {
            // We only use the secondary progress on the second bar
            // Seems to be more usable that way..
            return mSecondaryProgress.getSecondaryProgress();
        }
        return mSecondaryProgressVal;
    }

    public int getMax() {
        if (mProgress != null) {
            return mProgress.getMax();
        }
        return mMax;
    }

    public void setMax(int max) {
        if (mProgress != null) {
            mProgress.setMax(max);
            onProgressChanged();
        } else {
            mMax = max;
        }
    }

    public void incrementProgressBy(int diff) {
        if (mProgress != null) {
            mProgress.incrementProgressBy(diff);
            onProgressChanged();
        } else {
            mIncrementBy += diff;
        }
    }

    public void incrementSecondaryProgressBy(int diff) {
        if (mSecondaryProgress != null) {
            mSecondaryProgress.incrementSecondaryProgressBy(diff);
            onProgressChanged();
        } else {
            mIncrementSecondaryBy += diff;
        }
    }

    public void setProgressDrawable(Drawable d) {
        if (mProgress != null) {
            mProgress.setProgressDrawable(d);
        } else {
            mProgressDrawable = d;
        }
    }

    public void setIndeterminateDrawable(Drawable d) {
        if (mProgress != null) {
            mProgress.setIndeterminateDrawable(d);
        } else {
            mIndeterminateDrawable = d;
        }
    }

    public void setIndeterminate(boolean indeterminate) {
        if (mProgress != null) {
            mProgress.setIndeterminate(indeterminate);
        } else {
            mIndeterminate = indeterminate;
        }
    }

    public boolean isIndeterminate() {
        if (mProgress != null) {
            return mProgress.isIndeterminate();
        }
        return mIndeterminate;
    }

    @Override
    public void setMessage(CharSequence message) {
        if (mProgress != null) {
                super.setMessage(message);
        } else {
            mMessage = message;
        }
    }

    /**
     * Change the format of Progress Number. The default is "current/max".
     * Should not be called during the number is progressing.
     * @param format Should contain two "%d". The first is used for current number
     * and the second is used for the maximum.
     * @hide
     */
    public void setProgressNumberFormat(String format) {
        mProgressNumberFormat = format;
    }

    private void onProgressChanged() {
        mViewUpdateHandler.sendEmptyMessage(0);
    }
}

Java Source Code List

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