Tag: android

I Have a Dialog with a Custom layout in my layouts Folder, which Wraps its Content. If I pu tin a large Text into one of the TextFields, the Buttons on the Bottom dissapear. The Text itself is scrollable and everything else works just fine. I want the Buttons to stick to the Bottom of the Dialog and not disappear if the text is Too Large.
Dialog without TextInput, Dialog with large Text. Icannot post Pictures directly, therefore i just included Links.

I have already tried to change the Layout so the Buttons stick to the Bottom of the Layout instead of the TextView above them. Setting a fixed size isnt really an Option.

Layout of the Dialog Layout:

<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.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="@drawable/bg_layout_rounded_16">

    <EditText
        android:id="@+id/dialog_resource_title"
        style="@style/myEditTextStyle"
        android:layout_width="0dp"
        android:layout_height="wrap_content"
        android:layout_marginStart="16dp"
        android:layout_marginTop="8dp"
        android:layout_marginEnd="8dp"
        android:hint="@string/general_title_hint"
        android:inputType="textMultiLine"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintHorizontal_bias="0.498"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="parent" />

    <EditText
        android:id="@+id/dialog_resource_description"
        style="@style/myEditTextStyle"
        android:layout_width="0dp"
        android:layout_height="wrap_content"
        android:layout_marginStart="16dp"
        android:layout_marginTop="8dp"
        android:layout_marginEnd="16dp"
        android:layout_marginBottom="8dp"
        android:hint="@string/general_description_hint"
        android:inputType="textMultiLine"
        app:layout_constraintBottom_toTopOf="@+id/dialog_resource_cancel"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toBottomOf="@+id/dialog_resource_title" />

    <Button
        android:id="@+id/dialog_resource_cancel"
        android:layout_width="0dp"
        android:layout_height="wrap_content"
        android:layout_marginStart="8dp"
        android:layout_marginEnd="4dp"
        android:layout_marginBottom="8dp"
        android:paddingBottom="8dp"
        android:text="@string/general_cancel"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintEnd_toStartOf="@+id/dialog_resource_middle_line"
        app:layout_constraintHorizontal_bias="0.0"
        app:layout_constraintStart_toStartOf="parent" />

    <Button
        android:id="@+id/dialog_resource_save"
        android:layout_width="0dp"
        android:layout_height="wrap_content"
        android:layout_marginStart="4dp"
        android:layout_marginEnd="8dp"
        android:layout_marginBottom="8dp"
        android:text="@string/general_save"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintHorizontal_bias="0.0"
        app:layout_constraintStart_toStartOf="@+id/dialog_resource_middle_line" />

    <android.support.constraint.Guideline
        android:id="@+id/dialog_resource_middle_line"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:orientation="vertical"
        app:layout_constraintGuide_percent="0.5" />

</android.support.constraint.ConstraintLayout>


Initialisation of the Dialog:



        resourceDialog = new Dialog(context);

        View v = LayoutInflater.from(context).inflate(R.layout.dialog_resource, null);

        this.resourceDialogTitle = v.findViewById(R.id.dialog_resource_title);
        this.resourceDialogDescription = v.findViewById(R.id.dialog_resource_description);
        this.resourceDialogCancel = v.findViewById(R.id.dialog_resource_cancel);
        this.resourceDialogSave = v.findViewById(R.id.dialog_resource_save);

        resourceDialog.setContentView(v);
        // Set Color of Root View (Otherwise white Background in the Corners)
        resourceDialog.getWindow().setBackgroundDrawableResource(android.R.color.transparent);

        // Getting the Display Metrics to set Size of Dialog
        DisplayMetrics displayMetrics = getResources().getDisplayMetrics();
        int width = displayMetrics.widthPixels;

        // Setting the Size
        resourceDialog.getWindow().setLayout((width - 128), ViewGroup.LayoutParams.WRAP_CONTENT);

        resourceDialog.setCanceledOnTouchOutside(false);

Solution:

Put the buttons incide a linear layout and use a constraint option to constrain it to the bottom of the screen. For example

<LinearLayout
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:layout_alignParentBottom="true"
    android:layout_centerInParent="true"
    android:orientation="horizontal"
    app:layout_constraintBottom_toBottomOf="parent">

    <Button />

    <Button />
</LinearLayout>

–Edit–
I tried this and worked for me

<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.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.support.v4.widget.NestedScrollView
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:fillViewport="true"
    android:fitsSystemWindows="true"
    android:paddingBottom="120dp"
    android:scrollbars="horizontal"
    app:layout_constraintTop_toBottomOf="@+id/appBarLayout">

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_below="@id/appBarLayout"
        android:layout_marginLeft="10dp"
        android:layout_marginTop="14dp"
        android:layout_marginRight="10dp"
        android:orientation="vertical">
        <TextView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="@string/address"
            android:textColor="@color/black_1"
            android:textSize="20sp"
            android:textStyle="bold" />


    </LinearLayout>

</android.support.v4.widget.NestedScrollView>

<LinearLayout
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:layout_alignParentBottom="true"
    android:layout_centerInParent="true"
    android:orientation="horizontal"
    app:layout_constraintBottom_toBottomOf="parent">

    <Button
        android:layout_width="0dp"
        android:layout_height="wrap_content"
        android:layout_weight="1"
        android:layout_marginRight="4dp"
        android:textColor="@android:color/white" />

    <Button
        android:layout_width="0dp"
        android:layout_height="wrap_content"
        android:layout_weight="1"
        android:layout_marginLeft="4dp"
        android:textColor="@android:color/white" />
</LinearLayout>

</android.support.constraint.ConstraintLayout>

I’m new to android development. I have 10 different buttons and I want to display a toast for each one of them. The message is something like:

“This is the button: ” + numButton

Where numButton is a prop passed to the function. This is the function code:

public void displayMensaje(View v) {
        Toast.makeText(ActividadUno.this, "Test", Toast.LENGTH_SHORT).show();
    }

And this is the xml:

<Button
        android:id="@+id/button11"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginStart="30dp"
        android:layout_marginLeft="30dp"
        android:layout_marginTop="400dp"
        android:text="churro"
        android:onClick="displayMensaje"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="parent" />

Solution:

You can cast the View in Button and get the text of button.

Something like this:

public void displayMensaje(View v) {
    Button button = (Button) v;
    String title = button.getText();
    String message = "Test " + title;
    Toast.makeText(ActividadUno.this, message, Toast.LENGTH_SHORT).show();
}  

Edit:
According to my understanding from your comment below, you have multiple buttons in your activity, and you want to display different values on clicking different buttons.

You can have a Map with keys as button titles and values as nutrition values.

Below is a general example of how you can achieve this:

public class MyActivity extends Activity {
    // Your Message Format
    private static final String MSG_FORMAT = "Item Name: %s\n"
            + "Fat: %s\n"
            + "Protein: %s\n"
            + "Calories: %s";

    // A Map to hold info of all items
    // Key = button title
    // Value = Array containing item info
    private Map<String, String[]> info = new HashMap();

    // Assuming you have 3 buttons in your activity
    private Button btnMilk;
    private Button btnEggs;
    private Button btnChicken;

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

        btnMilk = (Button) findViewById(R.id.btn_milk);
        btnEggs = (Button) findViewById(R.id.btn_eggs);
        btnChicken = (Button) findViewById(R.id.btn_chicken);

        // 0 = Fat, 1 = Protein, 2 = Calories
        String[] milkInfo = new String[]{"12", "20", "125"};
        String[] eggsInfo = new String[]{"10", "50", "205"};
        String[] chickenInfo = new String[]{"50", "5", "500"};

        // load your Map with the data
        info.put(btnMilk.getText(), milkInfo);
        info.put(btnEggs.getText(), eggsInfo);
        info.put(btnChicken.getText(), chickenInfo);

    }

    public void displayMessage(View v) {
        Button button = (Button) v;

        String title = button.getText();

        // Get item info from your Map
        String[] itemInfo = info.get(title);

        // Create message using the format and values from the array
        String message = String.format(MSG_FORMAT, title, itemInfo[0], itemInfo[1], itemInfo[2]);

        Toast.makeText(MyActivity.this, message, Toast.LENGTH_SHORT).show();
    }
}

Hope this helps