Android Open Source - android-token-sharing Upload File

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License

The source code is released under:

Copyright 2011 SoundCloud Ltd., Jan Berkel. All rights reserved. Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions ...

Java Source Code

package com.soundcloud.android.examples.token;
//ww  w  .ja va 2  s . c  o  m
import android.app.Activity;
import android.content.ContentResolver;
import android.content.Intent;
import android.database.Cursor;
import android.net.Uri;
import android.os.AsyncTask;
import android.os.Bundle;
import android.provider.MediaStore;
import android.util.Log;
import android.view.View;
import android.widget.Button;
import android.widget.TextView;

import java.io.File;


/**
 * This activity demonstrates how to pick and upload a piece of audio. The main work is done in
 * {@link UploadTask}.
 */
public class UploadFile extends Activity {
    private TextView mFile;
    private UploadTask mUploadTask;
    private Button mUpload;

    public void onCreate(Bundle bundle) {
        super.onCreate(bundle);
        setContentView(R.layout.upload_file);

        mFile = (TextView) findViewById(R.id.file);
        mUpload = (Button) findViewById(R.id.upload);

        UploadFile last = getLastNonConfigurationInstance();
        if (last != null) {
            mFile.setText(last.mFile.getText());
            mUpload.setEnabled(last.mUpload.isEnabled());
            mUploadTask = last.mUploadTask;
            if (mUploadTask != null) mUploadTask.attachContext(this);
        }

        findViewById(R.id.pick).setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                startActivityForResult(new Intent(Intent.ACTION_GET_CONTENT).setType("audio/*"), 0);
            }
        });

        mUpload.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                if (mUploadTask == null || mUploadTask.getStatus() == AsyncTask.Status.FINISHED) {
                    mUploadTask = new UploadTask(UploadFile.this);
                    mUploadTask.execute(new File(mFile.getText().toString()));
                }
            }
        });
    }

    @Override
    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
        if (resultCode == RESULT_OK) {
            File file = getFromMediaUri(getContentResolver(), data.getData());

            if (file != null) {
                mFile.setText(file.getAbsolutePath());
                mUpload.setEnabled(true);
            }
        }
    }

    @Override
    public UploadFile getLastNonConfigurationInstance() {
        return (UploadFile) super.getLastNonConfigurationInstance();
    }

    @Override
    public UploadFile onRetainNonConfigurationInstance() {
        return this;
    }

    // Helper method to get file from a content uri
    protected static File getFromMediaUri(ContentResolver resolver, Uri uri) {
        if ("file".equals(uri.getScheme())) {
            return new File(uri.getPath());
        } else if ("content".equals(uri.getScheme())) {
            String[] filePathColumn = {MediaStore.MediaColumns.DATA};
            Cursor cursor = resolver.query(uri, filePathColumn, null, null, null);
            if (cursor != null) {
                try {
                    if (cursor.moveToFirst()) {
                        int columnIndex = cursor.getColumnIndex(filePathColumn[0]);
                        String filePath = cursor.getString(columnIndex);
                        return new File(filePath);
                    }
                } finally {
                    cursor.close();
                }
            }
        }
        return null;
    }
}

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