2019-07-09

1.写布局的时候遇到 Attempt to invoke virtual method 'boolean java.lang.String.equals(java.lang.Object)' on a null object reference

把<view>换成<View>

2.修改无标题栏，不想继承Activity,修改styles.xml

<resources> <!-- Base application theme. --> 

<style name="AppTheme" parent="Theme.AppCompat.Light.NoActionBar"> 

  <!-- Customize your theme here. --> </style></resources>

3.阻止EditText弹出输入法

setInputType(InputType.TYPE_NULL);