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   源码介绍

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package com.codemany.chinesecard;

import java.util.GregorianCalendar;

import android.app.Activity;
import android.app.AlertDialog;
import android.content.Intent;
import android.content.pm.PackageManager.NameNotFoundException;
import android.inputmethodservice.Keyboard;
import android.inputmethodservice.KeyboardView;
import android.inputmethodservice.KeyboardView.OnKeyboardActionListener;
import android.net.Uri;
import android.os.Bundle;
import android.text.Editable;
import android.text.InputType;
import android.util.Log;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TextView;
import android.widget.Toast;

public class QueryActivity extends Activity {
    private static final String TAG = QueryActivity.class.getName();

    // wi = 2(n-1)(mod 11)
    private final int[] wi = {7, 9, 10, 5, 8, 4, 2, 1, 6, 3, 7, 9, 10, 5, 8, 4, 2, 1};
    // check code
    private final int[] vi = {1, 0, 'X', 9, 8, 7, 6, 5, 4, 3, 2};

    private KeyboardView kbdView;

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.tab_query);

        kbdView = (KeyboardView)findViewById(R.id.kbd_view);
        kbdView.setKeyboard(new Keyboard(this, R.xml.qwerty));
        kbdView.setEnabled(true);
        kbdView.setPreviewEnabled(true);
        kbdView.setOnKeyboardActionListener(new OnKeyboardActionListener() {
            @Override
            public void onKey(int primaryCode, int[] keyCodes) {
                Log.d(TAG, "onKey? primaryCode="   primaryCode);
                int n1 = 0; // -1 count
                for (int keyCode : keyCodes) {
                    if (keyCode == -1) {
                        n1  ;
                        continue;
                    }
                    Log.d(TAG, "keyCode="   keyCode);
                }
                Log.d(TAG, "keyCode=-1 *"   n1);
                EditText edit = (EditText)findViewById(R.id.edt_id_number);
                Editable editable = edit.getText();
                int start = edit.getSelectionStart();
                if (primaryCode == Keyboard.KEYCODE_CANCEL) {
                    hideKeyboard();
                } else if (primaryCode == Keyboard.KEYCODE_DELETE) {
                    if (editable != null && editable.length() > 0) {
                        editable.delete(start - 1, start);
                    }
                } else if (primaryCode == 57419) { // go left
                    if (start > 0) {
                        edit.setSelection(start - 1);
                    }
                } else if (primaryCode == 57421) { // go right
                    if (start < edit.length()) {
                        edit.setSelection(start   1);
                    }
                } else {
                    editable.insert(start, Character.toString((char)primaryCode));
                }
            }

            @Override
            public void onPress(int primaryCode) {
                Log.d(TAG, "onPress? primaryCode="   primaryCode);
            }

            @Override
            public void onRelease(int primaryCode) {
                Log.d(TAG, "onRelease? primaryCode="   primaryCode);
            }

            @Override
            public void onText(CharSequence text) {
                Log.d(TAG, "onText? \""   text   "\"");
            }

            @Override
            public void swipeDown() {
                Log.d(TAG, "swipeDown");
            }

            @Override
            public void swipeLeft() {
                Log.d(TAG, "swipeLeft");
            }

            @Override
            public void swipeRight() {
                Log.d(TAG, "swipeRight");
            }

            @Override
            public void swipeUp() {
                Log.d(TAG, "swipeUp");
            }
        });

        EditText edtIdNumber = (EditText)findViewById(R.id.edt_id_number);
        edtIdNumber.setInputType(InputType.TYPE_NULL);
        edtIdNumber.setOnClickListener(new OnClickListener() {
            @Override
            public void onClick(View v) {
                showKeyboard();
            }
        });

        Button btnQuery = (Button)findViewById(R.id.btn_query);
        btnQuery.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                clearResultText();
                String number = getIdNumber();
                if (number.length() != 15 && number.length() != 18) {
                    showErrorMessage(R.string.error_must_be_fifteen_or_eighteen);
                    return;
                }

                if (number.length() == 15) {
                    number = upgradeIdNumber(number);
                }

                StringBuilder sb = new StringBuilder();
                sb.append(getString(R.string.result_query_prompt));
                sb.append("\n").append(getString(R.string.result_identity_number)).append(number);
                sb.append("\n").append(getString(R.string.address)).append(getAddress(number));
                sb.append("\n").append(getString(R.string.birth)).append(getBirth(number));
                sb.append("\n").append(getString(R.string.age)).append(getAge(number));
                sb.append("\n").append(getString(R.string.gender)).append(getGender(number));
                showResult(sb.toString());
            }
        });

        Button btnVerify = (Button)findViewById(R.id.btn_verify);
        btnVerify.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                clearResultText();
                String number = getIdNumber();
                if (number.length() != 18) {
                    showErrorMessage(R.string.error_must_be_eighteen);
                    return;
                }

                String checkCode = getCheckCode(number.substring(0, 17));
                if (checkCode.equalsIgnoreCase(number.substring(17, 18))) {
                    showResult(getString(R.string.result_verify_success));
                } else {
                    showResult(getString(R.string.result_verify_failure)   checkCode);
                }
            }
        });

        Button btnUpgrade = (Button)findViewById(R.id.btn_upgrade);
        btnUpgrade.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                clearResultText();
                String number = getIdNumber();
                if (number.length() != 15) {
                    showErrorMessage(R.string.error_must_be_fifteen);
                    return;
                }

                number = upgradeIdNumber(number);
                showResult(getString(R.string.result_upgrade_prefix)   number);
            }
        });

        Button btnClear = (Button)findViewById(R.id.btn_clear);
        btnClear.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                clearResultText();
                EditText edit = (EditText)findViewById(R.id.edt_id_number);
                edit.setText("");
            }
        });
    }

    private void hideKeyboard() {
        int visibility = kbdView.getVisibility();
        if (visibility == View.VISIBLE) {
            kbdView.setVisibility(View.INVISIBLE);
        }
    }

    private void showKeyboard() {
        int visibility = kbdView.getVisibility();
        if (visibility == View.GONE || visibility == View.INVISIBLE) {
            kbdView.setVisibility(View.VISIBLE);
        }
    }

    private void clearResultText() {
        TextView resultEdit = (TextView)findViewById(R.id.tv_result);
        resultEdit.setText("");
    }

    private String upgradeIdNumber(String number) {
        StringBuilder sb = new StringBuilder();
        sb.append(number.substring(0, 6));
        sb.append("19");
        sb.append(number.substring(6, 15));
        sb.append(getCheckCode(sb.toString()));
        return sb.toString();
    }

    private String getCheckCode(String number) {
        int remaining = 0;
        if (number.length() == 18) {
          return number.substring(17, 18);
        }

        int sum = 0;
        int ai = 0;
        for (int i = 0; i < 17; i  ) {
            String k = number.substring(i, i   1);
            ai = Integer.parseInt(k);
            sum  = wi[i] * ai;
        }
        remaining = sum % 11;
        return remaining == 2 ? "X" : String.valueOf(vi[remaining]);
    }

    private String getIdNumber() {
        EditText edit = (EditText)findViewById(R.id.edt_id_number);
        return edit.getText().toString().trim();
    }

    private void showResult(String message) {
        TextView tv = (TextView)findViewById(R.id.tv_result);
        tv.setText(message);
    }

    private void showErrorMessage(int resId) {
        Toast.makeText(this, resId, Toast.LENGTH_LONG).show();
    }

    private String getGender(String number) {
        String gender = number.substring(14, 17);
        return Integer.parseInt(gender) % 2 == 0
            ? getString(R.string.female) : getString(R.string.male);
    }

    private int getAge(String number) {
        String birth = number.substring(6, 10);
        int start = Integer.parseInt(birth);
        GregorianCalendar calendar = new GregorianCalendar();
        int end = calendar.get(java.util.Calendar.YEAR);
        return end - start;
    }

    private String getBirth(String number) {
        String birth = number.substring(6, 14);
        String year = birth.substring(0, 4);
        String month = birth.substring(4, 6);
        String day = birth.substring(6, 8);
        return year   getString(R.string.year)
              month   getString(R.string.month)
              day   getString(R.string.day);
    }

    private String getAddress(String number) {
        StringBuilder sb = new StringBuilder();
    	DBHelper helper = DBHelper.getInstance(this);
    	sb.append(helper.getAddress(this, number.substring(0, 6)));
    	helper.close();
        return sb.toString();
    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        // Inflate the currently selected menu XML resource.
        getMenuInflater().inflate(R.menu.options, menu);
        return true;
    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        switch (item.getItemId()) {
            case R.id.feedback:
                sendFeedback("dohkoos@gmail.com", getString(R.string.feedback_title));
                break;

            case R.id.share:
                shareApp(getString(R.string.share_send_title),
                        getString(R.string.share_send_message),
                        getPackageName());
                break;

            case R.id.about:
                showAbout();
                break;

            default:
                return super.onOptionsItemSelected(item);
        }
        return true;
    }

    private void shareApp(CharSequence subject, CharSequence content, String packageName) {
        Intent intent = new Intent("android.intent.action.SEND");
        intent.putExtra("android.intent.extra.SUBJECT", subject);
        intent.putExtra("android.intent.extra.TEXT",
                content   "http://market.android.com/search?q=pname:"   packageName);
        intent.setType("text/plain");
        startActivity(intent);
    }

    private void sendFeedback(String email, String subject) {
        Uri uri = Uri.parse("mailto:"   email);
        Intent intent = new Intent("android.intent.action.SENDTO", uri);
        intent.putExtra("android.intent.extra.SUBJECT", subject);
        startActivity(intent);
    }

    private void showAbout() {
        AlertDialog.Builder aboutBuilder = new AlertDialog.Builder(this);
        aboutBuilder.setTitle(getResources().getText(R.string.about_title));
        aboutBuilder.setMessage(getResources().getString(R.string.about_message, getVersionName()));
        aboutBuilder.show();
    }

    private String getVersionName() {
        String versionName;
        try {
            versionName = getPackageManager().getPackageInfo(getPackageName(), 0).versionName;
        } catch (NameNotFoundException e) {
            versionName = "";
        }
        return versionName;
    }
}