Two solutions to Android crash

In fact, I have been using Android for almost 3 months so far, and I still encounter the situation of flashback, but these are trivial and easy to solve.

1. Check whether your Activity is registered in AndroidManifest.xml .

If my Register.xml crashes (can't enter this page), see if there is any in AndroidManifest.xml

        <activity
            android:name=".RegisterActivity"
            android:label="RegisterActivity" >
        </activity>

 

 

 

2. If you have already registered, try the following method

Add in activity_register.xml: tools:context="com.xiaoxiaoyu.test.RegisterActivity

which is:

<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="com.xiaoxiaoyu.test.RegisterActivity" >





</RelativeLayout>

 

 

 

At present, as for these two situations, I will come back and add them when I encounter them later.