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Android的官方文档是32313133353236313431303231363533e58685e5aeb931333337626230没有提供相应的Api的，因为标准的Andoird是没有双卡的，好像也只有国内才会搞双卡双待的神器吧。以下记录一下做这个功能所学习到的东西。直接上代码：

import java.lang.reflect.InvocationTargetException;

import java.lang.reflect.Method;

import java.util.List;

import android.app.Activity;

import android.content.Context;

import android.content.SharedPreferences;

import android.content.SharedPreferences.Editor;

import android.os.Bundle;

import android.preference.PreferenceManager;

import android.telephony.CellInfo;

import android.telephony.TelephonyManager;

import android.view.Menu;

import android.widget.TextView;

public class MainActivity extends Activity

{

private TextView tv;

private TextView tv2;

// ///

static String ISDOUBLE;

static String SIMCARD;

static String SIMCARD_1;

static String SIMCARD_2;

static boolean isDouble;

// //

@Override

protected void onCreate(Bundle savedInstanceState)

{

super.onCreate(savedInstanceState);

setContentView(R.layout.activity_main);

tv = (TextView) findViewById(R.id.text);

tv2 = (TextView) findViewById(R.id.text2);

tv2.setText("不知道哪个卡可用！");

getNumber();

}

private void getNumber()

{

TelephonyManager tm = (TelephonyManager) this.getSystemService(this.TELEPHONY_SERVICE);

String phoneNumber1 = tm.getLine1Number();

// String phoneNumber2 = tm.getGroupIdLevel1();

initIsDoubleTelephone(this);

if (isDouble)

{

// tv.setText("这是双卡手机！");

tv.setText("本机号码是：" + " " + phoneNumber1 + " " + "这是双卡手机！");

} else

{

// tv.setText("这是单卡手机");

tv.setText("本机号码是：" + " " + phoneNumber1 + " " + "这是单卡手机");

}

}

public void initIsDoubleTelephone(Context context)

{

isDouble = true;

Method method = null;

Object result_0 = null;

Object result_1 = null;

TelephonyManager tm = (TelephonyManager) context.getSystemService(Context.TELEPHONY_SERVICE);

try

{

// 只要在反射getSimStateGemini 这个函数时报了错就是单卡手机(这是我自己的经验，不一定全正确)

method = TelephonyManager.class.getMethod("getSimStateGemini", new Class[]

{ int.class });

// 获取SIM卡1

result_0 = method.invoke(tm, new Object[]

{ new Integer(0) });

// 获取SIM卡2

result_1 = method.invoke(tm, new Object[]

{ new Integer(1) });

} catch (SecurityException e)

{

isDouble = false;

e.printStackTrace();

// System.out.println("1_ISSINGLETELEPHONE:"+e.toString());

} catch (NoSuchMethodException e)

{

isDouble = false;

e.printStackTrace();

// System.out.println("2_ISSINGLETELEPHONE:"+e.toString());

} catch (IllegalArgumentException e)

{

isDouble = false;

e.printStackTrace();

} catch (IllegalAccessException e)

{

isDouble = false;

e.printStackTrace();

} catch (InvocationTargetException e)

{

isDouble = false;

e.printStackTrace();

} catch (Exception e)

{

isDouble = false;

e.printStackTrace();

// System.out.println("3_ISSINGLETELEPHONE:"+e.toString());

}

SharedPreferences sp = PreferenceManager.getDefaultSharedPreferences(context);

Editor editor = sp.edit();

if (isDouble)

{

// 保存为双卡手机

editor.putBoolean(ISDOUBLE, true);

// 保存双卡是否可用

// 如下判断哪个卡可用.双卡都可以用

if (result_0.toString().equals("5") && result_1.toString().equals("5"))

{

if (!sp.getString(SIMCARD, "2").equals("0") && !sp.getString(SIMCARD, "2").equals("1"))

{

editor.putString(SIMCARD, "0");

}

editor.putBoolean(SIMCARD_1, true);

editor.putBoolean(SIMCARD_2, true);

tv2.setText("双卡可用");

} else if (!result_0.toString().equals("5") && result_1.toString().equals("5"))

{// 卡二可用

if (!sp.getString(SIMCARD, "2").equals("0") && !sp.getString(SIMCARD, "2").equals("1"))

{

editor.putString(SIMCARD, "1");

}

editor.putBoolean(SIMCARD_1, false);

editor.putBoolean(SIMCARD_2, true);

tv2.setText("卡二可用");

} else if (result_0.toString().equals("5") && !result_1.toString().equals("5"))

{// 卡一可用

if (!sp.getString(SIMCARD, "2").equals("0") && !sp.getString(SIMCARD, "2").equals("1"))

{

editor.putString(SIMCARD, "0");

}

editor.putBoolean(SIMCARD_1, true);

editor.putBoolean(SIMCARD_2, false);

tv2.setText("卡一可用");

} else

{// 两个卡都不可用(飞行模式会出现这种种情况)

editor.putBoolean(SIMCARD_1, false);

editor.putBoolean(SIMCARD_2, false);

tv2.setText("飞行模式");

}

} else

{

// 保存为单卡手机

editor.putString(SIMCARD, "0");

editor.putBoolean(ISDOUBLE, false);

}

editor.commit();

}

@Override

public boolean onCreateOptionsMenu(Menu menu)

{

// Inflate the menu; this adds items to the action bar if it is present.

getMenuInflater().inflate(R.menu.main, menu);

return true;

}

}

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