android中判断sim卡状态和读取联系人资料的方法

 在写程序中，有时候可能需要获取sim卡中的一些联系人资料。在获取sim卡联系人前，我们一般会先判断sim卡状态，找到sim卡后再获取它的资料，如下代码我们可以读取sim卡中的联系人的一些信息。

      读取的代码如下：

package com.android.test;

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"); //一般用这一条，如果这条不行的话可以试试下面的一条。

            getSimContacts("content://sim/adn");//此种读法在我们手机里不能读取，所以，还是用上个uri比较好。

        }

        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 += "不能从" + str + "读数据\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 += "列数：" + mCursor.getColumnCount() + "\n";

        mString += "行数：" + mCursor.getCount() + "\n";

        if (mCursor != null) {

            while (mCursor.moveToNext()) {

                // 取得联系人名字

                int nameFieldColumnIndex = mCursor.getColumnIndex("name");

                mString += mCursor.getString(nameFieldColumnIndex)+"    ";

                // 取得电话号码

                int numberFieldColumnIndex = mCursor

                        .getColumnIndex("number");

                mString += mCursor.getString(numberFieldColumnIndex)+"    ";

                // 取得邮箱

                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 = "无卡";

                 // do something

                 break;

             case TelephonyManager.SIM_STATE_NETWORK_LOCKED:

                 mString = "需要NetworkPIN解锁";

                 // do something

                 break;

             case TelephonyManager.SIM_STATE_PIN_REQUIRED:

                 mString = "需要PIN解锁";

                 // do something

                 break;

             case TelephonyManager.SIM_STATE_PUK_REQUIRED:

                 mString = "需要PUN解锁";

                 // do something

                 break;

             case TelephonyManager.SIM_STATE_READY:

                 mString = "良好";

                 // do something

                 break;

             case TelephonyManager.SIM_STATE_UNKNOWN:

                 mString = "未知状态";

                 // do something

                 break;

         }

         mTextView.setText(mString);

    }

}

main.xml布局文件如下：

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

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"

    android:orientation="vertical"

    android:layout_width="fill_parent"

    android:layout_height="fill_parent"

    >

    <ScrollView android:layout_width="fill_parent"

    android:layout_height="fill_parent">

    <LinearLayout android:orientation="vertical"

    android:layout_width="fill_parent"

    android:layout_height="fill_parent">

    <TextView  android:id="@+id/text"

    android:layout_width="fill_parent"

    android:layout_height="wrap_content"

    android:text="@string/hello"

    />

    </LinearLayout>

    </ScrollView>

</LinearLayout>

同时还要在AndroidManefist.xml中添加读sim卡的权限，如下：

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

<manifest xmlns:android="http://schemas.android.com/apk/res/android"

      package="com.android.test"

      android:versionCode="1"

      android:versionName="1.0">

    <application android:icon="@drawable/icon" android:label="@string/app_name">

        <activity android:name=".PhoneTest"

                  android:label="@string/app_name">

            <intent-filter>

                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />

            </intent-filter>

        </activity>

    </application>

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

</manifest>

以后一定会用到。。