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How to change position of Toast in Android?

开发者 https://www.devze.com 2022-12-23 19:23 出处:网络
When I use Toast to display some popup text on the screen, it displays the text a开发者_JAVA百科 little bit above the bottom of the screen, which is the default position.

When I use Toast to display some popup text on the screen, it displays the text a开发者_JAVA百科 little bit above the bottom of the screen, which is the default position.

Now I want to display it in the middle of screen or somewhere according to my choice.

Can anyone guide me how to achieve this?


From the documentation,

Positioning your Toast

A standard toast notification appears near the bottom of the screen, centered horizontally. You can change this position with the setGravity(int, int, int) method. This accepts three parameters: a Gravity constant, an x-position offset, and a y-position offset.

For example, if you decide that the toast should appear in the top-left corner, you can set the gravity like this:

toast.setGravity(Gravity.TOP|Gravity.LEFT, 0, 0);

If you want to nudge the position to the right, increase the value of the second parameter. To nudge it down, increase the value of the last parameter.


If you get an error indicating that you must call makeText, the following code will fix it:

Toast toast= Toast.makeText(getApplicationContext(), 
"Your string here", Toast.LENGTH_SHORT);  
toast.setGravity(Gravity.TOP|Gravity.CENTER_HORIZONTAL, 0, 0);
toast.show();


From the documentation:

Warning: Starting from Android Build.VERSION_CODES#R, for apps targeting API level Build.VERSION_CODES#R or higher, this method (setGravity) is a no-op when called on text toasts.

Which means that setGravity can no longer be used in API 30+ and will have to find another to achieve the required behaviour.


You can customize the location of your Toast by using:

setGravity(int gravity, int xOffset, int yOffset)

docs

This allows you to be very specific about where you want the location of your Toast to be.

One of the most useful things about the xOffset and yOffset parameters is that you can use them to place the Toast relative to a certain View.

For example, if you want to make a custom Toast that appears on top of a Button, you could create a function like this:

// v is the Button view that you want the Toast to appear above 
// and messageId is the id of your string resource for the message

private void displayToastAboveButton(View v, int messageId)
{
    int xOffset = 0;
    int yOffset = 0;
    Rect gvr = new Rect();

    View parent = (View) v.getParent(); 
    int parentHeight = parent.getHeight();

    if (v.getGlobalVisibleRect(gvr)) 
    {       
        View root = v.getRootView();

        int halfWidth = root.getRight() / 2;
        int halfHeight = root.getBottom() / 2;

        int parentCenterX = ((gvr.right - gvr.left) / 2) + gvr.left;

        int parentCenterY = ((gvr.bottom - gvr.top) / 2) + gvr.top;

        if (parentCenterY <= halfHeight) 
        {
            yOffset = -(halfHeight - parentCenterY) - parentHeight;
        }
        else 
        {
            yOffset = (parentCenterY - halfHeight) - parentHeight;
        }

        if (parentCenterX < halfWidth) 
        {         
            xOffset = -(halfWidth - parentCenterX);     
        }   

        if (parentCenterX >= halfWidth) 
        {
            xOffset = parentCenterX - halfWidth;
        }  
    }

    Toast toast = Toast.makeText(getActivity(), messageId, Toast.LENGTH_SHORT);
    toast.setGravity(Gravity.CENTER, xOffset, yOffset);
    toast.show();       
}


 Toast toast = Toast.makeText(test.this,"bbb", Toast.LENGTH_LONG);
 toast.setGravity(Gravity.CENTER, 0, 0);
 toast.show();


Toast mytoast= Toast.makeText(getApplicationContext(), "Toast Message", 1);  
mytoast.setGravity(Gravity.CENTER_HORIZONTAL, 0, 0);  // for center horizontal
//mytoast.setGravity(Gravity.CENTER_VERTICAL);       // for center vertical 
//mytoast.setGravity(Gravity.TOP);                       // for top
mytoast.show();

The above code is will help u to display toast in the middle of screen or according to ur choice for that just set the toast gravity according to ur need

Note: For this process u have to use object of Toast


The method to change the color, position and background color of toast is:

Toast toast=Toast.makeText(getApplicationContext(),"This is advanced toast",Toast.LENGTH_LONG);
toast.setGravity(Gravity.BOTTOM | Gravity.RIGHT,0,0);
View view=toast.getView();
TextView  view1=(TextView)view.findViewById(android.R.id.message);
view1.setTextColor(Color.YELLOW);
view.setBackgroundResource(R.color.colorPrimary);
toast.show();

For line by line explanation: https://www.youtube.com/watch?v=5bzhGd1HZOc


 Toast toast = Toast.makeText(test.this,"bbb", Toast.LENGTH_LONG);

 toast.setGravity(Gravity.CENTER, 0, 0);

 toast.show();

//this is the best solution to counter any error


//A custom toast class where you can show custom or default toast as desired)

public class ToastMessage {
            private Context context;
            private static ToastMessage instance;

            /**
             * @param context
             */
            private ToastMessage(Context context) {
                this.context = context;
            }

            /**
             * @param context
             * @return
             */
            public synchronized static ToastMessage getInstance(Context context) {
                if (instance == null) {
                    instance = new ToastMessage(context);
                }
                return instance;
            }

            /**
             * @param message
             */
            public void showLongMessage(String message) {
                Toast.makeText(context, message, Toast.LENGTH_SHORT).show();
            }

            /**
             * @param message
             */
            public void showSmallMessage(String message) {
                Toast.makeText(context, message, Toast.LENGTH_LONG).show();
            }

            /**
             * The Toast displayed via this method will display it for short period of time
             *
             * @param message
             */
            public void showLongCustomToast(String message) {
                LayoutInflater inflater = ((Activity) context).getLayoutInflater();
                View layout = inflater.inflate(R.layout.layout_custom_toast, (ViewGroup) ((Activity) context).findViewById(R.id.ll_toast));
                TextView msgTv = (TextView) layout.findViewById(R.id.tv_msg);
                msgTv.setText(message);
                Toast toast = new Toast(context);
                toast.setGravity(Gravity.FILL_HORIZONTAL | Gravity.BOTTOM, 0, 0);
                toast.setDuration(Toast.LENGTH_LONG);
                toast.setView(layout);
                toast.show();


            }

            /**
             * The toast displayed by this class will display it for long period of time
             *
             * @param message
             */
            public void showSmallCustomToast(String message) {

                LayoutInflater inflater = ((Activity) context).getLayoutInflater();
                View layout = inflater.inflate(R.layout.layout_custom_toast, (ViewGroup) ((Activity) context).findViewById(R.id.ll_toast));
                TextView msgTv = (TextView) layout.findViewById(R.id.tv_msg);
                msgTv.setText(message);
                Toast toast = new Toast(context);
                toast.setGravity(Gravity.FILL_HORIZONTAL | Gravity.BOTTOM, 0, 0);
                toast.setDuration(Toast.LENGTH_SHORT);
                toast.setView(layout);
                toast.show();
            }

        }


SOLUTION

fun Context.showToastOnTOP(message: String) = Toast.makeText(this, message, Toast.LENGTH_SHORT)
    .apply { setGravity(Gravity.TOP, 0, 0); show() }

fun Context.showToastOnBOTTOM(message: String) = Toast.makeText(this, message, Toast.LENGTH_SHORT)
    .apply { setGravity(Gravity.BOTTOM, 0, 0); show() }

Important note Gravity will only work if your app target max 29 or less.

Chill Pill :)


Toast toast = Toast.makeText(this, "Custom toast creation", Toast.LENGTH_SHORT);
    toast.setGravity(Gravity.BOTTOM | Gravity.RIGHT,0,0);
    toast.show();
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