android中判斷sim卡狀態和讀取聯系人資料的方法

在寫程序中，有時候可能需要獲取sim卡中的一些聯系人資料。在獲取sim卡聯系人前，我們一般會先判斷sim卡狀態，找到sim卡后再獲取它的資料，如下代碼我們可以讀取sim卡中的聯系人的一些信息。

import android.app.Activity;

import android.content.Context;

import android.content.Intent;

import android.database.Cursor;

import android.net.Uri;

import android.os.Bundle;

import android.telephony.TelephonyManager;

import android.widget.TextView;

public class PhoneTest extends Activity {

    private TextView mTextView;

    protected Cursor mCursor = null;

    private TelephonyManager mTelephonyManager;

    private String mString = "";

/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {  
    super.onCreate(savedInstanceState);  
    setContentView(R.layout.main);  
    mTextView = (TextView)findViewById(R.id.text);  
    mTextView.setTextSize(20.3f);  
    isSimExist();  
    if(getSimState() == TelephonyManager.SIM_STATE_READY){  
        mString += "    卡存在\n";  
        getSimContacts("content://icc/adn"); //一般用這一條，如果這條不行的話可以試試下面的一條。  
        getSimContacts("content://sim/adn");//此種讀法在我們手機里不能讀取，所以，還是用上個uri比較好。  
    }  
    mTextView.setText(mString);  
}  

private void getSimContacts(String str){  
    Intent intent = new Intent();  
    intent.setData(Uri.parse(str));  
    Uri uri = intent.getData();  
    mCursor = getContentResolver().query(uri, null, null, null, null);  
    if(mCursor == null){  
        mString += "不能從" + str + "讀數據\n";  
        return ;  
    }  
    mString += "第一列：" + mCursor.getColumnName(0) + "\n";  
    mString += "第二列：" + mCursor.getColumnName(1) + "\n";  
    mString += "第三列：" + mCursor.getColumnName(2) + "\n";  
    mString += "第四列：" + mCursor.getColumnName(3) + "\n";  
    mString += "列數：" + mCursor.getColumnCount() + "\n";  
    mString += "行數：" + mCursor.getCount() + "\n";  
    if (mCursor != null) {  
        while (mCursor.moveToNext()) {  
            // 取得聯系人名字  
            int nameFieldColumnIndex = mCursor.getColumnIndex("name");  
            mString += mCursor.getString(nameFieldColumnIndex)+"    ";  
            // 取得電話號碼  
            int numberFieldColumnIndex = mCursor  
                    .getColumnIndex("number");  
            mString += mCursor.getString(numberFieldColumnIndex)+"    ";  
            // 取得郵箱  
            int emailsFieldColumnIndex = mCursor  
                    .getColumnIndex("emails");  
            mString += mCursor.getString(emailsFieldColumnIndex)+"    ";  
            // 取得id  
            int idFieldColumnIndex = mCursor  
                    .getColumnIndex("_id");  
            mString += mCursor.getString(idFieldColumnIndex)+"\n";  
        }  
    }  
    mString += mCursor + "\n";  
    mCursor.close();  
}  

private int getSimState(){  
    return mTelephonyManager.getSimState();  
}  

private void isSimExist(){  
    mTelephonyManager = (TelephonyManager) getSystemService(Context.TELEPHONY_SERVICE);  
     int simState = mTelephonyManager.getSimState();  

     switch (simState) {  

         case TelephonyManager.SIM_STATE_ABSENT:  
             mString = "無卡";  
             // do something  
             break;  

         case TelephonyManager.SIM_STATE_NETWORK_LOCKED:  
             mString = "需要NetworkPIN解鎖";  
             // do something  

             break;  

         case TelephonyManager.SIM_STATE_PIN_REQUIRED:  
             mString = "需要PIN解鎖";  
             // do something  
             break;  

         case TelephonyManager.SIM_STATE_PUK_REQUIRED:  
             mString = "需要PUN解鎖";  
             // do something  
             break;  

         case TelephonyManager.SIM_STATE_READY:  
             mString = "良好";  
             // do something  
             break;  

         case TelephonyManager.SIM_STATE_UNKNOWN:  
             mString = "未知狀態";  
             // do something  
             break;  
     }  
     mTextView.setText(mString);  
}  


}</pre>