Android应用中对于微信分享的实例及问题

源码地址

如何分享

分享无相应

分享结果如何接收响应

微信 分享回调

(提示几点关键问题： debug_key 一定要获得对应的签名码 然后和weixin官网的appid对应 )

几点注意事项
1)必须新建一个包位置是
<you package>.wxapi
2)并在此包下简历class
WXEntryActivity.class
3)AndroidManifest.xml 需要添加对应Activity的声明
<activity
android:name="com.yinhang.pos.wxapi.WXEntryActivity"
android:exported="true"
android:theme="@android:style/Theme.Translucent" >
4) WXEntryActivity.class 的基本要求
public class WXEntryActivity extends BaseActivity implements IWXAPIEventHandler{

RelativeLayout

<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=".StartActivity" >

<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/hello_world" />

<Button
android:id="@+id/btn_share"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
style="@style/MMLineActionButton"
android:layout_centerHorizontal="true"
android:text="share"
/>

</RelativeLayout>

manifest

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.weishare"
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.weishare.activity.StartActivity"
android:exported="true"
android:launchMode="singleTop"
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.weishare.wxapi.WXEntryActivity"
android:exported="true"
android:theme="@android:style/Theme.Translucent" >
</activity>
</application>

</manifest>

WXEntryActivity 响应 发送返回的关键

public class WXEntryActivity extends Activity implements IWXAPIEventHandler {
private IWXAPI api;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
api = WXAPIFactory.createWXAPI(this,
"your app id", false);
api.handleIntent(getIntent(), this);

}
@Override
public void onReq(BaseReq arg0) {

}

@Override
public void onResp(BaseResp resp) {
int result = 0;

switch (resp.errCode) {
case BaseResp.ErrCode.ERR_OK:
result = R.string.errcode_success;
break;
case BaseResp.ErrCode.ERR_USER_CANCEL:
result = R.string.errcode_cancel;
break;
case BaseResp.ErrCode.ERR_AUTH_DENIED:
result = R.string.errcode_deny;
break;
default:
result = R.string.errcode_unknown;
break;
}

Toast.makeText(this, result, Toast.LENGTH_LONG).show();

// TODO 微信分享 成功之后调用接口
this.finish();
}

}

StartActivity

public class StartActivity extends Activity {

private static final String APP_ID = "your app id";
private IWXAPI api;
private static final String text = "sdafljsalfdkj";
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_start);

findViewById(R.id.btn_share).setOnClickListener(new OnClickListener() {

@Override
public void onClick(View v) {
// TODO Auto-generated method stub
final EditText editor = new EditText(StartActivity.this);
editor.setLayoutParams(new LinearLayout.LayoutParams(LinearLayout.LayoutParams.FILL_PARENT, LinearLayout.LayoutParams.WRAP_CONTENT));
editor.setText("默认发送信息");
//				MMAlert.showAlert(StartActivity.class, "title", editor, "ok", "cancel", new DialogInterface.OnClickListener())

regToWx();
// 初始化一个WXTextObject对象
WXTextObject textObj = new WXTextObject();
textObj.text = text;

// 用WXTextObject对象初始化一个WXMediaMessage对象
WXMediaMessage msg = new WXMediaMessage();
msg.mediaObject = textObj;
// 发送文本类型的消息时，title字段不起作用
// msg.title = "Will be ignored";
msg.description = text;

// 构造一个Req
SendMessageToWX.Req req = new SendMessageToWX.Req();
req.transaction = String.valueOf(System.currentTimeMillis());//buildTransaction("text"); // transaction字段用于唯一标识一个请求
req.message = msg;
//				req.scene = isTimelineCb.isChecked() ? SendMessageToWX.Req.WXSceneTimeline : SendMessageToWX.Req.WXSceneSession;
Log.e("",api.sendReq(req) + "----------------");
// 调用api接口发送数据到微信
api.sendReq(req);

}
});
}

private void regToWx(){
api = WXAPIFactory.createWXAPI(this, APP_ID, true);
api.registerApp(APP_ID);
}

@Override
protected void onRestart() {
// TODO Auto-generated method stub
super.onRestart();
//		Toast.makeText(this, "onRestart   sdkjflsaj", Toast.LENGTH_LONG).show();
Log.e(this.getApplication().toString(), "---------onRestart-----------------------");
}
@Override
protected void onResume() {
// TODO Auto-generated method stub
super.onResume();
//		Toast.makeText(this, "onResume  lasdkjflsaj", Toast.LENGTH_LONG).show();
Log.e(this.getApplication().toString(), "---------onResume-----------------------");
}

@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.start, menu);
return true;
}

//	@Override
//	public void onReq(BaseReq arg0) {
//		// TODO Auto-generated method stub
////		Toast.makeText(this, "onReqonReqonReqlasdkjflsaj", Toast.LENGTH_LONG).show();
//		Log.e(this.getApplication().toString(), "---------onReq-----------------------");
//	}
//
//	@Override
//	public void onResp(BaseResp arg0) {
//		// TODO Auto-generated method stub
////		Toast.makeText(this, "onResponResponRespasdkjflsaj", Toast.LENGTH_LONG).show();;
//		Log.e(this.getApplication().toString(), "---------onResp-----------------------");
//
//
//	}

}