发表于
Android

To enable Analytics Debug mode on an emulated Android device, execute the following command line:

adb shell setprop debug.firebase.analytics.app <package_name>

This behavior persists until you explicitly disable Debug mode by executing the following command line:

adb shell setprop debug.firebase.analytics.app .none.

iOS

To enable Analytics Debug mode on your development device, specify the following command line argument in Xcode :

-FIRDebugEnabled

This behavior persists until you explicitly disable Debug mode by specifying the following command line argument:

-FIRDebugDisabled

Link

发表于
调试的时候，都没有问题，但是在打包的时候，报出下面的错误
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Lint found fatal errors while assembling a release target.  
To proceed, either fix the issues identified by lint, or modify your build script as follows:  
... 
android { 
   lintOptions { 
       checkReleaseBuilds false 
       // Or, if you prefer, you can continue to check for errors in release builds, 
       // but continue the build even when errors are found: 
       abortOnError false 
    } 
}

解决方法：
这个错误报告会生成在
[app module]/build/reports/lint-results-yourBuildName-fatal.html
打开这个网页，可以看到详细的错误信息，修改起来就简单了。

发表于
理解

1.用户通过手机浏览器点击带有referrer的Url(如https://play.google.com/store/apps/details?id=com.xxx.xxx&referrer=test) （正常此网页下方在Play商店打开）
2.Google Play会记录附带的参数，(Finsky: [1] ifa.run(26): Capture referrer for com.xxx.xxx)
3.待用户下载安装之后,用户首次安装打开App时，Google Play将参数广播到App(Finsky: [1] ifb.run(12): Delivered referrer for com.xxx.xxx)。

代码实现（方式一，据说是Play Store 8.几之前才支持，未进行验证）

新建个类并继承BroadcastReceiver，用于接收referrer

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public class InstallReferrerReceiver extends BroadcastReceiver {
    @Override
    public void onReceive(Context context, Intent intent) {
        String referrer = intent.getStringExtra("referrer");
 
        Logger.e("install referrer:" + referrer);
        if (referrer != null && referrer.length() > 0) {

        }
    }
}

AndroidManifest.xml

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<receiver
            android:name=".InstallReferrerReceiver"
            android:exported="true"
            android:permission="android.permission.INSTALL_PACKAGES" >
            <intent-filter>
                <action android:name="com.android.vending.INSTALL_REFERRER" />
            </intent-filter>
</receiver>

代码实现（方式二）
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public class InstallReferrerUtil {

    private final static String INSTALL_REFERRER = "com.android.vending.INSTALL_REFERRER";

    public static void setup(Context context) {
        InstallReferrerClient client = InstallReferrerClient.newBuilder(context)
                .build();
        client.startConnection(new InstallReferrerStateListener() {
            @Override
            public void onInstallReferrerSetupFinished(int responseCode) {
                if (responseCode == InstallReferrerClient.InstallReferrerResponse.OK) {
                    try {
                        ReferrerDetails details = client.getInstallReferrer();
                        String referrer = details.getInstallReferrer();
                        if (!TextUtils.isEmpty(referrer)) {
                            SharedPrefUtils.getInstance().putJReferrer(referrer);
                            Intent referrerReceived = new Intent(INSTALL_REFERRER);
                            referrerReceived.putExtra("referrer", referrer);
                            //向App本身其他Receiver广播
                            Iterator var8 = context.getPackageManager().queryBroadcastReceivers(new Intent(INSTALL_REFERRER), 0).iterator();
                            while (var8.hasNext()) {
                                ResolveInfo var4 = (ResolveInfo) var8.next();
                                String var5 = referrerReceived.getAction();
                                if (var4.activityInfo.packageName.equals(context.getPackageName()) && INSTALL_REFERRER.equals(var5) && !this.getClass().getName().equals(var4.activityInfo.name)) {
                                    BuglyLog.e("onReceive:class:", (new StringBuilder("trigger onReceive: class: ")).append(var4.activityInfo.name).toString() + "");
                                    try {
                                        ((BroadcastReceiver) Class.forName(var4.activityInfo.name).newInstance()).onReceive(context, referrerReceived);
                                    } catch (Throwable var6) {
                                        BuglyLog.e("onReceive:class:", (new StringBuilder("error in BroadcastReceiver ")).append(var4.activityInfo.name).toString(), var6);
                                    }
                                }
                            }
                        }
                        AndroidSchedulers.mainThread().createWorker().schedule(() -> CrashReport.postCatchedException(new Throwable("referral:" + referrer)));
                    } catch (RemoteException e) {
                        // omit exception
                        AndroidSchedulers.mainThread().createWorker().schedule(() -> CrashReport.postCatchedException(new Throwable("RemoteException:" + e.getMessage())));
                    }
                }
            }
            @Override
            public void onInstallReferrerServiceDisconnected() {
                AndroidSchedulers.mainThread().createWorker().schedule(() -> CrashReport.postCatchedException(new Throwable("referral:onInstallReferrerServiceDisconnected")));
            }
        });
    }
}

关键神坑解决:
很多童鞋弄完可能收到

utm_source=(not%20set)&utm_medium=(not%20set)
很明显Google那边做了什么不见得人的处理，导致没把referrer传递过来
我们通过链接分析会发现：

  • 1.用户访问：https://play.google.com/store/apps/details?id=com.xxx.xxx&referrer=test
  • 2.点击该页面下面的按钮”在PLAY商店应用中打开”
  • 3.然后细心点就会发现Google做了短链中转处理啊(处理就处理嘛，Google直接把&referrer=test弄没了，弄没了，心塞塞~)
    https://play.app.goo.gl/?link=https://play.google.com/store/apps/details?id=com.xxx.xxx&ddl=1&pcampaignid=web_ddl_1

所以，想实现可以传referrer，要么对上述的链接进行处理，如：
https://play.app.goo.gl/?link=https://play.google.com/store/apps/details?id=com.xxx.xxx
将link后面的链接加上&referrer=test，然后UrlEncode一下
https://play.app.goo.gl/?link=https%3a%2f%2fplay.google.com%2fstore%2fapps%2fdetails%3fid%3dcom.xxx.xxx%26referrer%3dtest

不然或者用这种链接
market://details?id=com.xxx.xxx&referrer=test

最后，你终于就能看到String referrer = details.getInstallReferrer();获取到referrer了（当然你还得先找梯子上架到Google Play才能验证到）。

发表于

通常selector都是在drawable/color文件夹中定义好，但有时候一些特殊需求需要我们动态通过代码去更改，这个时候就要用到StateListDrawable 和 ColorStateList 了，分别是设置图片和颜色的类

今天先讲通过代码实现ColorStateList，代码呈现如下：

private static ColorStateList createColorStateList(Context context, int color) {
        int[] colors = new int[]{ContextCompat.getColor(context, color), ContextCompat.getColor(context, R.color.gray)};
        int[][] states = new int[2][];
        states[0] = new int[]{android.R.attr.state_checked};
        states[1] = new int[]{-android.R.attr.state_checked};
        ColorStateList colorList = new ColorStateList(states, colors);
        return colorList;
    }

其中:-android.R.attr.state_checked 和 android.R.attr.state_checked 的区别在于 “-” 号代表值里的true 和 false ,有“-”为false 没有则为true