Demo for an Android app that interacts with the browser and its bookmarks (API < 22)

activity_main.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout

    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:orientation="vertical"
    tools:context="com.github.ppartisan.bookmarklet.MainActivity">

    <TextView
        android:layout_width="match_parent"
        android:layout_height="0dp"
        android:layout_weight="1"
        android:gravity="center"
        android:id="@+id/text" />

    <Button
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:id="@+id/button"
        android:text="@string/launch_browser"/>

    <ListView
        android:layout_width="match_parent"
        android:layout_height="0dp"
        android:layout_weight="3"
        android:id="@+id/list" />

</LinearLayout>

AndroidManifest.xml

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.github.ppartisan.bookmarklet">

    <uses-permission android:name="com.android.browser.permission.READ_HISTORY_BOOKMARKS"/>

    <application
        android:allowBackup="true"
        android:icon="@mipmap/ic_launcher"
        android:label="@string/app_name"
        android:supportsRtl="true"
        android:theme="@style/AppTheme">
        <activity android:name=".MainActivity">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />
                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
            <intent-filter>
                <action android:name="android.intent.action.SEND" />
                <category android:name="android.intent.category.DEFAULT" />
                <data android:mimeType="text/*" />
            </intent-filter>
        </activity>

    </application>

</manifest>

MainActivity.java

import android.content.Intent;
import android.database.Cursor;
import android.net.Uri;
import android.provider.Browser;
import android.support.v4.app.LoaderManager;
import android.support.v4.content.CursorLoader;
import android.support.v4.content.Loader;
import android.support.v4.widget.CursorAdapter;
import android.support.v4.widget.SimpleCursorAdapter;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.ListView;
import android.widget.TextView;

public class MainActivity extends AppCompatActivity implements View.OnClickListener, LoaderManager.LoaderCallbacks<Cursor> {

    private static final String MIME_TYPE = "text/";
    private static final Uri DATA = Uri.parse("http://www.quora.com");

    private CursorAdapter mAdapter;

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

        setContentView(R.layout.activity_main);

        TextView mTextView = (TextView) findViewById(R.id.text);
        Button mButton = (Button) findViewById(R.id.button);
        ListView mListView = (ListView) findViewById(R.id.list);

        mAdapter = new SimpleCursorAdapter(
                this,
                android.R.layout.two_line_list_item,
                null,
                new String[] { Browser.BookmarkColumns.TITLE, Browser.BookmarkColumns.URL },
                new int[] { android.R.id.text1, android.R.id.text2 },
                0
        );

        mListView.setAdapter(mAdapter);

        mButton.setOnClickListener(this);
        mTextView.setText(R.string.empty_text_message);

        final String action = getIntent().getAction();
        final String type = getIntent().getType();

        if (Intent.ACTION_SEND.equals(action) && type != null) {
            if (type.startsWith(MIME_TYPE)) {
                mTextView.setText(getIntent().getStringExtra(Intent.EXTRA_TEXT));
            }
        }

        getSupportLoaderManager().initLoader(0, null, this);

    }

    @Override
    public void onClick(View view) {
        Intent launchBrowser = new Intent(Intent.ACTION_VIEW);
        launchBrowser.setData(DATA);
        startActivity(launchBrowser);
    }

    @Override
    public Loader<Cursor> onCreateLoader(int id, Bundle args) {

        final String[] projection = {
                Browser.BookmarkColumns._ID,
                Browser.BookmarkColumns.TITLE,
                Browser.BookmarkColumns.URL,
                Browser.BookmarkColumns.BOOKMARK
        };

        return new CursorLoader(this, Browser.BOOKMARKS_URI, projection, null, null, null);

    }

    @Override
    public void onLoadFinished(Loader<Cursor> loader, Cursor data) {
        mAdapter.swapCursor(data);
    }

    @Override
    public void onLoaderReset(Loader<Cursor> loader) {
        mAdapter.swapCursor(null);
    }
}