I've written the following code with no compilation errors but my app crashes at run time. If he has entered a positive value greater than 10, a toast should appear green in color. I'm making an app in which if the user enters a positive value less than 10, a toast should appear Red in color. Step 3) Now we want to use this button to show whatever we have entered in the password field so what we have to go to main activity here so in the project we are going to go to MainActivity.java file and in here in the main activity itself we are going to declare two variables.I'm new to Android Development. Step 2) So now when we run this app on an emulator, you can see that whenever you want to run some text in this password text field you will see every character is replaced by this dot. And now this password whenever I run the activity, here always comes the, it hides the characters and it only shows the specific character, which you want to display.

Step 1) First, go to the text field category and drag and drop the password category in the activity screen,give the width as fill_parent so it fills the parent.

Please follow the steps given below in order to use password field in Android activity: So these are some of the properties to resize and adjust the layout width, layout height of your widget. Now change the layout height of this button to fill_parent and now whenever you do this for layout height it fills all the height all the space which is available at the height of the parent.Īnd when you do fill_parent for both height and width, it’ll fill all the space of your parent. So whenever you change the layout width to fill_parent it fills all the space in the parent. And the parent is activity here, right and fills the remaining space. So the fill parent method the component or in the fill_parent method want to display as big as its parent. So the height is also enough to show the button content.īut when we change the layout width, for example, changing it to fill_parent it fills all the width of our activity.

In the same way, the layout height is also wrap_content here. So its button content is the only button and the button size or width is enough to show the button text on this button. And wrap content just means that the component just wants to display big enough to enclose its content. When you go to the property called layout width it’s property is set to wrap_content. First time when we drag and drop a button in the activity screen, it’s layout property.

How to make toast android studio