先建立Library工程，即普通工程然后在Android的属性勾选Library选项。
这里建立的工程为 mySdk ，Activity名为LoginActivity。
LoginActivity代码：
package com.example.mysdk;import android.os.Bundle;import android.os.Debug;import android.R.integer;import android.app.Activity;import android.content.Context;import android.content.Intent;import android.util.Log;import android.view.Menu;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 LoginActivity extends Activity implements OnClickListener { EditText usernameEditText,passwdEditText; Button loginButton,calcelbButton; TextView appidTextView; public Context mContext; public String m_appId; public Intent m_intent; public void Init(Context context,String appId) { mContext=context; m_appId=appId; } @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.loginlayout); appidTextView=(TextView)findViewById(R.id.appidTextView); usernameEditText=(EditText)findViewById(R.id.usernameTextEdit); passwdEditText=(EditText)findViewById(R.id.passwdTextEidt); loginButton=(Button)findViewById(R.id.buttonLogin); calcelbButton=(Button)findViewById(R.id.buttonCalcel); loginButton.setOnClickListener(this); calcelbButton.setOnClickListener(this); m_intent=this.getIntent(); Bundle bundle=m_intent.getBundleExtra("bundle"); String appidString=bundle.getString("AppID"); judgeAppId(appidString); } @Override public void onClick(View v) { int resId=v.getId(); if(resId==R.id.buttonLogin) { Log.d("mysdk", "buttonLogin Click"); StringBuffer stringBuffer=new StringBuffer(); stringBuffer.append("name:"+usernameEditText.getText()); stringBuffer.append("passwd:"+usernameEditText.getText()); Toast toast=Toast.makeText(this, stringBuffer.toString(), Toast.LENGTH_LONG); toast.show(); Bundle resultBundle=new Bundle(); //判断帐号密码是否正确，正确就返回正确到前一个Activity if("Misstea".equals(usernameEditText.getText().toString().trim()) && "Misstea".equals(passwdEditText.getText().toString().trim())) { Log.d("mysdk", "密码正确"); resultBundle.putInt("resultInt", 1); //密码正确,返回获取到的userId resultBundle.putString("userId", "012312334234"); m_intent.putExtra("resultBundle", resultBundle); } else { Log.d("mysdk", "密码错误"); resultBundle.putInt("resultInt", -1); //密码错误 m_intent.putExtra("resultBundle", resultBundle); } this.setResult(RESULT_OK,m_intent); this.finish(); } else if(resId==R.id.buttonCalcel) { Log.d("mysdk", "buttonCalcel Click"); this.finish(); } } @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; } public void judgeAppId(String appId) { if(appId.equals("123456")) { Log.d("mysdk", "AppId is ok"+appId); appidTextView.setText(appId); } else { Log.d("mysdk", "AppId is false"+appId); appidTextView.setText("appid错误"); } } }mySDK Manifest文件：
<?xml version="1.0" encoding="utf-8"?><manifest xmlns:android="http://schemas.android.com/apk/res/android" package="com.example.mysdk" android:versionCode="1" android:versionName="1.0" > <uses-sdk android:minSdkVersion="8" android:targetSdkVersion="17" /> <application android:allowBackup="true" android:icon="@drawable/ic_launcher" android:label="@string/app_name" android:theme="@style/AppTheme" > <activity android:name="com.example.mysdk.LoginActivity" 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></manifest>
loginlayout.xml
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent" android:layout_height="match_parent" android:paddingBottom="@dimen/activity_vertical_margin" android:paddingLeft="@dimen/activity_horizontal_margin" android:paddingRight="@dimen/activity_horizontal_margin" android:paddingTop="@dimen/activity_vertical_margin" tools:context=".LoginActivity" > <EditText android:id="@+id/usernameTextEdit" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_alignParentRight="true" android:layout_alignParentTop="true" android:layout_marginTop="68dp" android:ems="10" /> <EditText android:id="@+id/passwdTextEidt" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_alignLeft="@+id/usernameTextEdit" android:layout_below="@+id/usernameTextEdit" android:layout_marginTop="34dp" android:ems="10" > <requestFocus /> </EditText> <Button android:id="@+id/buttonLogin" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_below="@+id/passwdTextEidt" android:layout_marginTop="38dp" android:layout_toRightOf="@+id/textView2" android:text="登录" /> <Button android:id="@+id/buttonCalcel" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_alignBaseline="@+id/buttonLogin" android:layout_alignBottom="@+id/buttonLogin" android:layout_alignRight="@+id/passwdTextEidt" android:layout_marginRight="20dp" android:text="取消" /> <TextView android:id="@+id/textView1" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_above="@+id/passwdTextEidt" android:layout_alignParentLeft="true" android:layout_alignTop="@+id/usernameTextEdit" android:text="帐号：" /> <TextView android:id="@+id/textView2" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_alignBottom="@+id/passwdTextEidt" android:layout_alignLeft="@+id/textView1" android:layout_alignTop="@+id/passwdTextEidt" android:text="密码：" /> <TextView android:id="@+id/appidTextView" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_alignParentTop="true" android:layout_centerHorizontal="true" android:text="" /></RelativeLayout>
mySDK 登录界面的预览
好了，mySDK就写完了。
然后新建一个Android工程来调用mySDK这个Library。这里新建工程为 UseMySdk。
在UseMySdk 工程属性Android里面加入mySDK Library。
下面是代码已经界面文件。
MainActivity
package com.example.usemysdk;import android.os.Bundle;import android.os.Debug;import android.app.Activity;import android.content.Context;import android.content.Intent;import android.util.Log;import android.view.Menu;import android.view.View;import android.view.View.OnClickListener;import android.widget.Button;import android.widget.TextView;import com.example.mysdk.*;public class MainActivity extends Activity { Button LoginButton; TextView textView; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); textView=(TextView)findViewById(R.id.textView1); LoginButton=(Button)findViewById(R.id.button1); LoginButton.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { // TODO Auto-generated method stub Log.d("UseMySdk", "LoginButton Click"); String AppId="123456"; Bundle bundle=new Bundle(); bundle.putString("AppID", AppId); Intent intent=new Intent(); intent.putExtra("bundle", bundle); intent.setClassName(getApplication(), "com.example.mysdk.LoginActivity"); startActivityForResult(intent, 0); } }); } @Override protected void onActivityResult(int requestCode,int resultCode,Intent intent) { switch (resultCode) { case RESULT_OK: Bundle bundle=intent.getBundleExtra("resultBundle"); int resultInt=bundle.getInt("resultInt"); if(resultInt==1)//登录成功 { Log.d("UseMySdk", "登录成功！"); //获取userId String userIdString=bundle.getString("userId"); textView.setText(userIdString); } else { Log.d("UseMySdk", "登录失败！"); } break; default: break; } } @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; }}activity_main.xml
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent" android:layout_height="match_parent" android:paddingBottom="@dimen/activity_vertical_margin" android:paddingLeft="@dimen/activity_horizontal_margin" android:paddingRight="@dimen/activity_horizontal_margin" android:paddingTop="@dimen/activity_vertical_margin" tools:context=".MainActivity" > <TextView android:id="@+id/textView1" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="@string/hello_world" /> <Button android:id="@+id/button1" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_alignLeft="@+id/textView1" android:layout_below="@+id/textView1" android:layout_marginTop="64dp" android:text="Button" /></RelativeLayout>
UseMySdk Manifest.xml
<?xml version="1.0" encoding="utf-8"?><manifest xmlns:android="http://schemas.android.com/apk/res/android" package="com.example.usemysdk" android:versionCode="1" android:versionName="1.0" > <uses-sdk android:minSdkVersion="8" android:targetSdkVersion="17" /> <application android:allowBackup="true" android:icon="@drawable/ic_launcher" android:label="@string/app_name" android:theme="@style/AppTheme" > <activity android:name="com.example.usemysdk.MainActivity" android:label="@string/app_name" > <intent-filter> <action android:name="android.intent.action.MAIN" /> <category android:name="android.intent.category.LAUNCHER" /> </intent-filter> </activity> <activity android:name="com.example.mysdk.LoginActivity"></activity> </application></manifest>
在UseMySdk Manifest中有个很重要的：
一定要注册mysdk的Activity，不然程序会崩溃找不到需要start的Activity
<activity android:name="com.example.mysdk.LoginActivity"></activity>
界面预览图
三方平台登录流程：
1.打开程序，点击登录按钮，跳到三方平台SDK的登录界面
2.在三方平台界面登录后，返回登录结果，如果登录成功，还会返回三方平台的userID。
3.程序获取到了登录成功标志，以三方平台userID作为用户名登录程序。