Question

由于一些奇怪的原因，setContentView（）没有调用我的LoginActivity类。它显示布局但不读取上下文？我添加了一个按钮和onclicklistener，它没有被调用。仅显示布局。

这是非常奇怪的我已经看到完成了每一件事但是LoginActivity被调用了吗？是因为嵌套布局吗？

LoginActivity

    public class LoginActivity extends BaseActivity implements View.OnClickListener {


    @BindView(R.id.button_signin)
    Button button_signin;


    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_login);

        ButterKnife.bind(this);
        //button_login.setOnClickListener(this);
        button_signin.setOnClickListener(this);
    }

    @Override
    public void onClick(View view) {
        switch (view.getId()) {
            case R.id.button_signin:
                Toast.makeText(this, "test321", Toast.LENGTH_SHORT).show();
                break;
        }
    }
}

BaseActivity

public class BaseActivity extends AppCompatActivity {


    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_login);
    }
}

XML

    <?xml version="1.0" encoding="utf-8"?>
<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:background="@color/ghostWhiteColor"
    android:orientation="vertical"
    android:context="test.testing.core.BaseActivity"


    <TextView
        android:id="@+id/textView"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:fontFamily="@font/f_roboto_bold"
        android:textColor="@color/holo_blue_light"
        android:gravity="center"
        android:paddingTop="140dp"
        android:textSize="50sp"
        android:text="@string/brandingtext" />

    <LinearLayout
        android:layout_width="fill_parent"
        android:layout_height="match_parent"
        android:layout_marginTop="?attr/actionBarSize"
        android:orientation="vertical"
        android:paddingLeft="20dp"
        android:paddingRight="20dp"
        android:paddingTop="200dp">

        <android.support.design.widget.TextInputLayout
            android:id="@+id/input_login_username"
            android:layout_width="match_parent"
            android:layout_height="wrap_content">

            <EditText
                android:id="@+id/login_username"
                android:layout_width="285dp"
                android:layout_height="wrap_content"
                android:layout_gravity="center"
                android:inputType="text"
                android:backgroundTint="@color/ghostWhiteColor"
                android:hint="@string/hint_name"
                android:singleLine="true"
                android:textColor="@color/myBlack"
                android:textColorHighlight="@color/antiqueWhiteColor"
                />
        </android.support.design.widget.TextInputLayout>

        <android.support.design.widget.TextInputLayout
            android:id="@+id/input_login_password"
            android:layout_width="match_parent"
            android:layout_height="wrap_content">

            <EditText
                android:id="@+id/login_password"
                android:layout_width="285dp"
                android:layout_height="wrap_content"
                android:layout_gravity="center"
                android:inputType="textPassword"
                android:backgroundTint="@color/ghostWhiteColor"
                android:hint="@string/hint_name"
                android:singleLine="true"
                />
        </android.support.design.widget.TextInputLayout>

        <Button
            android:id="@+id/button_signin"
            android:layout_width="125dp"
            android:layout_height="60dp"
            android:layout_gravity="center"
            android:layout_marginTop="10dp"
            android:background="@drawable/blue_oval"
            android:text="@string/btn_login"
            android:textColor="@color/ghostWhiteColor" />

        <TextView
            android:id="@+id/label_register"
            android:layout_width="match_parent"
            android:layout_height="60dp"
            android:fontFamily="@font/f_roboto_lightitalic"
            android:gravity="center"
            android:text="hello321"
            android:textColor="@color/myBlack"
            android:textSize="@dimen/fui_heading_padding_bottom" />

    </LinearLayout>
</RelativeLayout>

清单

    <?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.luxx.market.propg.luxx">
    <uses-permission android:name="android.permission.INTERNET" />

    <application
        android:allowBackup="true"
        android:icon="@mipmap/ic_launcher"
        android:label="@string/app_name"
        android:roundIcon="@mipmap/ic_launcher_round"
        android:supportsRtl="true"
        android:theme="@style/AppTheme">

        <activity android:name=".BaseActivity">

            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>

        <activity android:name=".core.activities.LoginActivity">
        </activity>

        <activity android:name=".core.activities.RegisterActivity">
        </activity>

    </application>
</manifest>

Answer 1

您从BaseActivity开始，这是不正确的，baseactivity应该是一个抽象类。

将此内容放入loginactivity并将其从基本活动中删除

library(shiny)
ui <- fluidPage(
  mainPanel(
    tabsetPanel(
      tabPanel("Information required for the model",
               sliderInput("Reservoirs", label = h3("Total Number of Reservoirs"), 
                           min = 1, max = 50, 
                           value = 10),
               sliderInput("Municipalities", label = h3("Total Number of Municipalities Served by the Reservoirs"), 
                           min = 1, max = 150, 
                           value = 15)

      ),
      tabPanel("Uploading files and other information",
               fileInput("ResName", "What are the names of the reservoirs?",
                         accept = c(
                           "text/csv",
                           "text/comma-separated-values,text/plain",
                           ".csv")
               ),
               fileInput("MunicipName", "What are the names of the municipalities?",
                         accept = c(
                           "text/csv",
                           "text/comma-separated-values,text/plain",
                           ".csv")
               )
               ),
      tabPanel("Summary of Inputs", tableOutput("Summary_Page_1a"), tableOutput("Summary_Page_1b"), tableOutput("Summary_Page_1c")),
      tabPanel("Summary of csv files", tableOutput("Summary_Page_2"))

    )))

server <- function(input, output) {
  names_of_reservoirs<-reactive(nrow(input$ResName))
  names_of_municipalities<-reactive(nrow(input$MunicipName))
  output$Summary_Page_1a<-renderText({(paste0("There are ", 
                                              input$Reservoirs, 
                                              " reservoirs <br> Serving ", 
                                              input$Municipalities, 
                                              " municipalities."
  ))
  })

  output$Summary_Page_1b<- renderText({if ((names_of_reservoirs)==input$Reservoirs){
    " "
  }else{
    "ERROR! The number of reservoirs and the number of reservoir names do not match"}
  })
  output$Summary_Page_1c<- renderText({if ((names_of_municipalities)==input$Municipalities){
    " "
  }else{
    "ERROR! The number of Municipalities and the number of muncipality names do not match"}
  })                                  



}

shinyApp(ui = ui, server = server)

setContentView（）没有调用我的LoginActivity

1 个答案: