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Save udacityandroid/0d6a67d340cdf28bbf6e to your computer and use it in GitHub Desktop.
<LinearLayout 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:orientation="vertical" | |
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=".MainActivity"> | |
<TextView | |
android:id="@+id/menu_item_1" | |
android:layout_width="wrap_content" | |
android:layout_height="wrap_content" | |
android:text="Mango sorbet" | |
android:textAppearance="?android:textAppearanceMedium" /> | |
<TextView | |
android:id="@+id/menu_item_2" | |
android:layout_width="wrap_content" | |
android:layout_height="wrap_content" | |
android:layout_marginTop="8dp" | |
android:text="Blueberry pie" | |
android:textAppearance="?android:textAppearanceMedium" | |
android:textSize="18sp" /> | |
<TextView | |
android:id="@+id/menu_item_3" | |
android:layout_width="wrap_content" | |
android:layout_height="wrap_content" | |
android:layout_marginTop="8dp" | |
android:text="Chocolate lava cake" | |
android:textAppearance="?android:textAppearanceMedium" | |
android:textSize="18sp" /> | |
<Button | |
android:layout_width="wrap_content" | |
android:layout_height="wrap_content" | |
android:layout_marginTop="8dp" | |
android:onClick="printToLogs" | |
android:text="Print menu to logs" /> | |
</LinearLayout> |
package com.example.android.menu; | |
import android.os.Bundle; | |
import android.support.v7.app.AppCompatActivity; | |
import android.util.Log; | |
import android.view.View; | |
import android.widget.TextView; | |
public class MainActivity extends AppCompatActivity { | |
@Override | |
protected void onCreate(Bundle savedInstanceState) { | |
super.onCreate(savedInstanceState); | |
setContentView(R.layout.activity_main); | |
} | |
public void printToLogs(View view) { | |
// Find first menu item TextView and print the text to the logs | |
TextView textViewItem1 = (TextView) findViewById(R.id.menu_item_1); | |
String menuItem1 = textViewItem1.getText().toString(); | |
Log.v("MainActivity", menuItem1); | |
// Find second menu item TextView and print the text to the logs | |
TextView textViewItem2 = (TextView) findViewById(R.id.menu_item_2); | |
String menuItem2 = textViewItem2.getText().toString(); | |
Log.v("MainActivity", menuItem2); | |
// Find third menu item TextView and print the text to the logs | |
TextView textViewItem3 = (TextView) findViewById(R.id.menu_item_3); | |
String menuItem3 = textViewItem3.getText().toString(); | |
Log.v("MainActivity", menuItem3); | |
} | |
} |
The final answer given at the top didn't work with my Android version.I guess it is because the code comes from 2015?
So I made some minor adjustment and now it works perfectly and it looks like this:
For the XML file it is:
<LinearLayout 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:orientation="vertical"
tools:context=".MainActivity">
<TextView
android:id="@+id/menu_item_1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Mango sorbet"
android:textAppearance="?android:textAppearanceMedium" />
<TextView
android:id="@+id/menu_item_2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="8dp"
android:text="Anna Sun"
android:textAppearance="?android:textAppearanceMedium"
android:textSize="18sp" />
<TextView
android:id="@+id/menu_item_3"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="8dp"
android:text="Chocolate lava cake"
android:textAppearance="?android:textAppearanceMedium"
android:textSize="18sp" />
For the Java file:
package com.example.android.menu;
import androidx.appcompat.app.AppCompatActivity;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.widget.TextView;
public class MainActivity extends AppCompatActivity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
}
public void printToLogs(View view) {
// Find first menu item TextView and print the text to the logs
TextView textViewItem1 = (TextView) findViewById(R.id.menu_item_1);
String menuItem1 = textViewItem1.getText().toString();
Log.v("MainActivity", menuItem1);
// Find second menu item TextView and print the text to the logs
TextView textViewItem2 = (TextView) findViewById(R.id.menu_item_2);
String menuItem2 = textViewItem2.getText().toString();
Log.v("MainActivity", menuItem2);
// Find third menu item TextView and print the text to the logs
TextView textViewItem3 = (TextView) findViewById(R.id.menu_item_3);
String menuItem3 = textViewItem3.getText().toString();
Log.v("MainActivity", menuItem3);
}
}
java code
package com.example.android.newproject;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.widget.TextView;
import androidx.appcompat.app.AppCompatActivity;
public class MainActivity extends AppCompatActivity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
}
public void printToLogs(View view) {
// Find first menu item TextView and print the text to the logs
TextView textViewItem1 = (TextView) findViewById(R.id.lee);
String menuItem1 = textViewItem1.getText().toString();
Log.v("MainActivity", menuItem1);
// Find second menu item TextView and print the text to the logs
TextView textViewItem2 = (TextView) findViewById(R.id.Jax);
String menuItem2 = textViewItem2.getText().toString();
Log.v("MainActivity", menuItem2);
// Find third menu item TextView and print the text to the logs
TextView textViewItem3 = (TextView) findViewById(R.id.yi);
String menuItem3 = textViewItem3.getText().toString();
Log.v("MainActivity", menuItem3);
}
}
xml
<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="@color/cardview_light_background"
tools:context=".MainActivity">
<TextView
android:id="@+id/lee"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="@color/white"
android:text="LeeSin"
android:textColor="@color/black"
android:textSize="50sp"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.061"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintVertical_bias="0.024" />
<TextView
android:id="@+id/Jax"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="@color/cardview_light_background"
android:text="Jax"
android:textColor="@color/black"
android:textSize="50sp"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.048"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintVertical_bias="0.319" />
<TextView
android:id="@+id/yi"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="@color/cardview_light_background"
android:text="master yi"
android:textColor="@color/black"
android:textSize="50sp"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.077"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintVertical_bias="0.17" />
<Button
android:id="@+id/button"
android:layout_width="136dp"
android:layout_height="66dp"
android:text="Print MTL"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.941"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintVertical_bias="0.451" />
</androidx.constraintlayout.widget.ConstraintLayout>
it give nothing
i was here
guys it doesn not poo up anything
CharSequence is not a class. It is something called an interface. And it is implemented by the String class. You can search for interfaces for more Info.