Android学习之——操作SIM卡联系人

<uses-permission android:name="android.permission.READ_CONTACTS"/> 
<uses-permission android:name="android.permission.WRITE_CONTACTS"/>

<?xml version="1.0" encoding="utf-8"?>
<ScrollView xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent" android:layout_height="match_parent">
    <LinearLayout android:id="@+id/menu_frame"
        android:layout_width="match_parent" android:layout_height="match_parent"
        android:orientation="vertical">
        <Button android:id="@+id/btnSelect" android:layout_width="match_parent"
            android:layout_height="wrap_content" android:text="查看SIM卡联系人" />
        <Button 
            android:id="@+id/btnDelect" android:layout_width="match_parent"
            android:layout_height="wrap_content" android:text="删除SIM卡联系人"
            />
        <TextView android:id="@+id/textView" android:layout_width="wrap_content"
            android:layout_height="match_parent" android:text="Demo"
            android:textSize="12sp" android:layout_centerInParent="true" />
    </LinearLayout>
</ScrollView>

 @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
            Bundle savedInstanceState) {
        // inflate the layout
        View view = inflater.inflate(R.layout.fragment_text, null);
        textView = (TextView) view.findViewById(R.id.textView);
        btnSelect = (Button) view.findViewById(R.id.btnSelect);
        btnDelete = (Button) view.findViewById(R.id.btnDelect);
        btnSelect.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
//我发现开了线程还是会阻塞UI线程，不晓得是什么原因，难道？我需要用AsyncTask？或者是Handler来处理。
//因为忙着玩新手机，所以我暂时也不深究了，哈哈，慢慢来，四儿子想了它一年多了。
                new Thread(new Runnable() {
                    @Override
                    public void run() {
                        SimQuery();//执行查询操作
                    }
                }).start();
                textView.setText(messageString);
            }
        });
        btnDelete.setOnClickListener(new View.OnClickListener() {
 
            @Override
            public void onClick(View v) {
                new Thread(new Runnable() {
                    @Override
                    public void run() {
                        SimDelete();//执行删除操作
                    }
 
                }).start();
                textView.setText("删除成功！");
            }
        });
        return view;
    }

private void SimQuery() {
        //SIM的provider是IccProvider，IccProvider的Uri是content://icc/adn
    Uri uri = Uri.parse("content://icc/adn");
    Cursor cursor = getActivity().getContentResolver().query(uri, null,
            null, null, null);
    Log.v("MAIN", "-----------" + cursor.getCount());
    while (cursor.moveToNext()) {
        String id = cursor.getString(cursor.getColumnIndex(People._ID));
        String name = cursor.getString(cursor.getColumnIndex(People.NAME));
        String phoneNumber = cursor.getString(cursor
                .getColumnIndex(People.NUMBER));
        messageString += "id:" + id + "  name:" + name + "  phoneNumber:"
                + phoneNumber + "\n\r";
        Log.v("MAIN", "--->>>_id: " + id + "--->>>name:" + name
                + "--->>>phone number:" + phoneNumber + "\n\r");
    }
    cursor.close();//注意一定要close
}
 
private void SimDelete() {
    Uri uri = Uri.parse("content://icc/adn");
    Cursor cursor = getActivity().getContentResolver().query(uri, null,
            null, null, null);
    Log.v("MAIN", "------------->>>>>" + cursor.getCount());
    while (cursor.moveToNext()) {
        String name = cursor.getString(cursor.getColumnIndex(People.NAME));
        String phoneNumber = cursor.getString(cursor
                .getColumnIndex(People.NUMBER));
        String where = "tag=‘" + name + "‘";
        where += " AND number=‘" + phoneNumber + "‘";
        getActivity().getContentResolver().delete(uri, where, null);
    }
    cursor.close();//注意一定要close
}