问题
In Android I want to display a toast message at the bottom of the screen, I tried this:
Toast.makeText(test.this,"bbb", Toast.LENGTH_LONG).show();
It doesn't work, how do I do it correctly?
回答1:
To display the Toast in center of the screen.
Toast toast = Toast.makeText(test.this,"bbb", Toast.LENGTH_LONG);
toast.setGravity(Gravity.CENTER, 0, 0);
toast.show();
回答2:
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.
回答3:
Layout file for custom toast
<ImageView
android:id="@+id/image"
android:layout_width="wrap_content"
android:layout_height="fill_parent"
android:layout_marginRight="5dp" />
<TextView
android:id="@+id/text"
android:layout_width="wrap_content"
android:layout_height="fill_parent"
android:textColor="#000" />
.java file for custom toast on button's click event
public class MainActivity extends Activity {
private Button button;
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
button = (Button) findViewById(R.id.buttonToast);
button.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View arg0) {
// get your custom_toast.xml ayout
LayoutInflater inflater = getLayoutInflater();
View layout = inflater.inflate(R.layout.custom_toast,
(ViewGroup) findViewById(R.id.custom_toast_layout_id));
// set a dummy image
ImageView image = (ImageView) layout.findViewById(R.id.image);
image.setImageResource(R.drawable.ic_launcher);
// set a message
TextView text = (TextView) layout.findViewById(R.id.text);
text.setText("Button is clicked!");
// Toast...
Toast toast = new Toast(getApplicationContext());
toast.setGravity(Gravity.CENTER_VERTICAL, 0, 0);
toast.setDuration(Toast.LENGTH_LONG);
toast.setView(layout);
toast.show();
}
});
}
}
回答4:
Toast toast = new Toast(context);
toast.setGravity(Gravity.FILL_HORIZONTAL | Gravity.BOTTOM, 0, 0);
toast.show();
回答5:
In Xamarin.Android, this displays toast at center of screen:
Toast toast = Toast.MakeText(ApplicationContext, "bbb", ToastLength.Long);
toast.SetGravity(GravityFlags.Center, 0, 0);
toast.Show();
回答6:
Showing/ Setting text gravity at center (Horizontally) in koltin
fun Context.longToast(msg: String) {
Toast.makeText(this, msg, Toast.LENGTH_LONG)
.apply {
view.findViewById<TextView>(android.R.id.message)?.gravity = Gravity.CENTER
}
.show()
}
回答7:
The following code can be used to display Toast message
Toast tt = Toast.makeText(MainActivity.this,"Your text displayed here", Toast.LENGTH_LONG);
tt.setGravity(Gravity.CENTER, 0, 0);
tt.show();
回答8:
The below code worked for me.
Toast.makeText(this, "Toast in center", Toast.LENGTH_SHORT).setGravity(Gravity.CENTER,0,0).show();
来源:https://stackoverflow.com/questions/15321186/how-to-display-toast-at-center-of-screen