【发布时间】:2016-05-27 11:32:30
【问题描述】:
我正在尝试让 Branch.io 在 Android 上运行,但我遇到了:
myapplication.MainActivity cannot be cast to android.app.Application
然后我改变了:
Branch.getAutoInstance(this);
收件人:
Branch.getInstance();
在onCreate的Activity中。
然后我得到:
java.lang.NullPointerException: Attempt to invoke virtual method 'boolean io.branch.referral.Branch.initSession(io.branch.referral.Branch$BranchReferralInitListener, android.net.Uri, android.app.Activity)' on a null object reference
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2416)
你能帮我搞定基本的并开始运行吗?
以下是我的 AndroidManifest.xml:(注意:我的应用代码中添加了 branch_key)
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.x.myapplication">
<uses-permission android:name="android.permission.INTERNET" />
<application
android:allowBackup="true"
android:icon="@mipmap/ic_launcher"
android:label="@string/app_name"
android:supportsRtl="true"
android:theme="@style/AppTheme">
<meta-data android:name="io.branch.sdk.BranchKey" android:value="key_live_xxxxxxxxxxxxxxx" />
<activity android:name=".MainActivity">
<intent-filter>
<data android:scheme="yourapp" android:host="open" />
<action android:name="android.intent.action.VIEW" />
<category android:name="android.intent.category.DEFAULT" />
<category android:name="android.intent.category.BROWSABLE" />
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<receiver android:name="io.branch.referral.InstallListener" android:exported="true">
<intent-filter>
<action android:name="com.android.vending.INSTALL_REFERRER" />
</intent-filter>
</receiver>
</application>
</manifest>
我的主要活动:
package com.example.chg.myapplication;
import android.app.Activity;
import android.os.Bundle;
import android.content.Intent;
import android.util.Log;
import org.json.JSONObject;
import io.branch.referral.Branch;
import io.branch.referral.BranchError;
public class MainActivity extends Activity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
// Branch.getAutoInstance(this);
Branch.getInstance();
setContentView(R.layout.activity_main);
}
@Override
public void onStart() {
super.onStart();
Branch branch = Branch.getInstance();
branch.initSession(new Branch.BranchReferralInitListener(){
@Override
public void onInitFinished(JSONObject referringParams, BranchError error) {
if (error == null) {
// params are the deep linked params associated with the link that the user clicked -> was re-directed to this app
// params will be empty if no data found
// ... insert custom logic here ...
} else {
Log.i("MyApp", error.getMessage());
}
}
}, this.getIntent().getData(), this);
}
@Override
public void onNewIntent(Intent intent) {
this.setIntent(intent);
}
}
【问题讨论】:
标签: branch.io