Change font size for an AlertDialog message
android, android-alertdialog, fonts
Solution
Use this :
AlertDialog alert = builder.create();
alert.show();
TextView msgTxt = (TextView) alert.findViewById(android.R.id.message);
msgTxt.setTextSize(16.0);
in your case :
Button submit = (Button) findViewById(R.id.submitButton);
submit.setOnClickListener(new View.OnClickListener() {
public void onClick(View view) {
AlertDialog.Builder builder = new AlertDialog.Builder(Application1GoodExample.this);
builder.setMessage("Your form has been successfully submitted");
builder.setNegativeButton("Exit", new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
dialog.cancel();
}
});
// this will solve your error
AlertDialog alert = builder.create();
alert.show();
alert.getWindow().getAttributes();
TextView textView = (TextView) alert.findViewById(android.R.id.message);
textView.setTextSize(40);
Button btn1 = alert.getButton(DialogInterface.BUTTON_NEGATIVE);
btn1.setTextSize(16);
}
});
If this didn't help you, post your LogCat Error in your question.
Problem
I'm trying to change the font size of the `AlertDialog` message. ``` Button submit = (Button) findViewById(R.id.submitButton); submit.setOnClickListener(new View.OnClickListener() { public void onClick(View view) { AlertDialog.Builder builder = new AlertDialog.Builder( Application1GoodExample.this); builder.setMessage("Your form has been successfully submitted"); TextView textView = (TextView) findViewById(android.R.id.message); textView.setTextSize(40); builder.setNegativeButton("Exit", new DialogInterface.OnClickListener() { public void onClick(DialogInterface dialog, int which) { dialog.cancel(); } }); builder.show(); } }); ``` I get an error message saying that "`findViewById()`" is undefined for the type `AlertDialog.Builder`.