packages/DocumentsUI/src/com/android/documentsui/TestActivity.java

/*
 * Copyright (C) 2013 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.android.documentsui;

import android.app.Activity;
import android.content.Context;
import android.content.Intent;
import android.net.Uri;
import android.os.Bundle;
import android.provider.DocumentsContract;
import android.util.Log;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.CheckBox;
import android.widget.LinearLayout;
import android.widget.ScrollView;
import android.widget.TextView;

import libcore.io.IoUtils;
import libcore.io.Streams;

import java.io.InputStream;
import java.io.OutputStream;

public class TestActivity extends Activity {
    private static final String TAG = "TestActivity";

    private static final int CODE_READ = 42;
    private static final int CODE_WRITE = 43;

    private TextView mResult;

    @Override
    public void onCreate(Bundle icicle) {
        super.onCreate(icicle);

        final Context context = this;

        final LinearLayout view = new LinearLayout(context);
        view.setOrientation(LinearLayout.VERTICAL);

        mResult = new TextView(context);
        view.addView(mResult);

        final CheckBox multiple = new CheckBox(context);
        multiple.setText("ALLOW_MULTIPLE");
        view.addView(multiple);
        final CheckBox localOnly = new CheckBox(context);
        localOnly.setText("LOCAL_ONLY");
        view.addView(localOnly);

        Button button;
        button = new Button(context);
        button.setText("OPEN_DOC */*");
        button.setOnClickListener(new OnClickListener() {
            @Override
            public void onClick(View v) {
                Intent intent = new Intent(Intent.ACTION_OPEN_DOCUMENT);
                intent.addCategory(Intent.CATEGORY_OPENABLE);
                intent.setType("*/*");
                if (multiple.isChecked()) {
                    intent.putExtra(Intent.EXTRA_ALLOW_MULTIPLE, true);
                }
                if (localOnly.isChecked()) {
                    intent.putExtra(Intent.EXTRA_LOCAL_ONLY, true);
                }
                startActivityForResult(intent, CODE_READ);
            }
        });
        view.addView(button);

        button = new Button(context);
        button.setText("OPEN_DOC image/*");
        button.setOnClickListener(new OnClickListener() {
            @Override
            public void onClick(View v) {
                Intent intent = new Intent(Intent.ACTION_OPEN_DOCUMENT);
                intent.addCategory(Intent.CATEGORY_OPENABLE);
                intent.setType("image/*");
                if (multiple.isChecked()) {
                    intent.putExtra(Intent.EXTRA_ALLOW_MULTIPLE, true);
                }
                if (localOnly.isChecked()) {
                    intent.putExtra(Intent.EXTRA_LOCAL_ONLY, true);
                }
                startActivityForResult(intent, CODE_READ);
            }
        });
        view.addView(button);

        button = new Button(context);
        button.setText("OPEN_DOC audio/ogg");
        button.setOnClickListener(new OnClickListener() {
            @Override
            public void onClick(View v) {
                Intent intent = new Intent(Intent.ACTION_OPEN_DOCUMENT);
                intent.addCategory(Intent.CATEGORY_OPENABLE);
                intent.setType("audio/ogg");
                if (multiple.isChecked()) {
                    intent.putExtra(Intent.EXTRA_ALLOW_MULTIPLE, true);
                }
                if (localOnly.isChecked()) {
                    intent.putExtra(Intent.EXTRA_LOCAL_ONLY, true);
                }
                startActivityForResult(intent, CODE_READ);
            }
        });
        view.addView(button);

        button = new Button(context);
        button.setText("OPEN_DOC text/plain, application/msword");
        button.setOnClickListener(new OnClickListener() {
            @Override
            public void onClick(View v) {
                Intent intent = new Intent(Intent.ACTION_OPEN_DOCUMENT);
                intent.addCategory(Intent.CATEGORY_OPENABLE);
                intent.setType("*/*");
                intent.putExtra(Intent.EXTRA_MIME_TYPES, new String[] {
                        "text/plain", "application/msword" });
                if (multiple.isChecked()) {
                    intent.putExtra(Intent.EXTRA_ALLOW_MULTIPLE, true);
                }
                if (localOnly.isChecked()) {
                    intent.putExtra(Intent.EXTRA_LOCAL_ONLY, true);
                }
                startActivityForResult(intent, CODE_READ);
            }
        });
        view.addView(button);

        button = new Button(context);
        button.setText("CREATE_DOC text/plain");
        button.setOnClickListener(new OnClickListener() {
            @Override
            public void onClick(View v) {
                Intent intent = new Intent(Intent.ACTION_CREATE_DOCUMENT);
                intent.addCategory(Intent.CATEGORY_OPENABLE);
                intent.setType("text/plain");
                intent.putExtra(Intent.EXTRA_TITLE, "foobar.txt");
                if (localOnly.isChecked()) {
                    intent.putExtra(Intent.EXTRA_LOCAL_ONLY, true);
                }
                startActivityForResult(intent, CODE_WRITE);
            }
        });
        view.addView(button);

        button = new Button(context);
        button.setText("CREATE_DOC image/png");
        button.setOnClickListener(new OnClickListener() {
            @Override
            public void onClick(View v) {
                Intent intent = new Intent(Intent.ACTION_CREATE_DOCUMENT);
                intent.addCategory(Intent.CATEGORY_OPENABLE);
                intent.setType("image/png");
                intent.putExtra(Intent.EXTRA_TITLE, "mypicture.png");
                if (localOnly.isChecked()) {
                    intent.putExtra(Intent.EXTRA_LOCAL_ONLY, true);
                }
                startActivityForResult(intent, CODE_WRITE);
            }
        });
        view.addView(button);

        button = new Button(context);
        button.setText("GET_CONTENT */*");
        button.setOnClickListener(new OnClickListener() {
            @Override
            public void onClick(View v) {
                Intent intent = new Intent(Intent.ACTION_GET_CONTENT);
                intent.addCategory(Intent.CATEGORY_OPENABLE);
                intent.setType("*/*");
                if (multiple.isChecked()) {
                    intent.putExtra(Intent.EXTRA_ALLOW_MULTIPLE, true);
                }
                if (localOnly.isChecked()) {
                    intent.putExtra(Intent.EXTRA_LOCAL_ONLY, true);
                }
                startActivityForResult(Intent.createChooser(intent, "Kittens!"), CODE_READ);
            }
        });
        view.addView(button);

        final ScrollView scroll = new ScrollView(context);
        scroll.addView(view);

        setContentView(scroll);
    }

    @Override
    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
        mResult.setText(null);
        String result = "resultCode=" + resultCode + ", data=" + String.valueOf(data);

        if (requestCode == CODE_READ) {
            final Uri uri = data != null ? data.getData() : null;
            if (uri != null) {
                if (DocumentsContract.isDocumentUri(this, uri)) {
                    result += "; DOC_ID";
                }
                try {
                    getContentResolver().takePersistableUriPermission(
                            uri, Intent.FLAG_GRANT_READ_URI_PERMISSION);
                } catch (SecurityException e) {
                    result += "; FAILED TO TAKE";
                    Log.e(TAG, "Failed to take", e);
                }
                InputStream is = null;
                try {
                    is = getContentResolver().openInputStream(uri);
                    final int length = Streams.readFullyNoClose(is).length;
                    result += "; read length=" + length;
                } catch (Exception e) {
                    result += "; ERROR";
                    Log.e(TAG, "Failed to read " + uri, e);
                } finally {
                    IoUtils.closeQuietly(is);
                }
            } else {
                result += "no uri?";
            }
        } else if (requestCode == CODE_WRITE) {
            final Uri uri = data != null ? data.getData() : null;
            if (uri != null) {
                if (DocumentsContract.isDocumentUri(this, uri)) {
                    result += "; DOC_ID";
                }
                try {
                    getContentResolver().takePersistableUriPermission(
                            uri, Intent.FLAG_GRANT_WRITE_URI_PERMISSION);
                } catch (SecurityException e) {
                    result += "; FAILED TO TAKE";
                    Log.e(TAG, "Failed to take", e);
                }
                OutputStream os = null;
                try {
                    os = getContentResolver().openOutputStream(uri);
                    os.write("THE COMPLETE WORKS OF SHAKESPEARE".getBytes());
                } catch (Exception e) {
                    result += "; ERROR";
                    Log.e(TAG, "Failed to write " + uri, e);
                } finally {
                    IoUtils.closeQuietly(os);
                }
            } else {
                result += "no uri?";
            }
        }

        Log.d(TAG, result);
        mResult.setText(result);
    }
}