How to display or print fixed number of decimal points of float data in textView of Android App?
In this video it shows how to limit the number of decimal points of a float or decimal while printing it on a textView widget of Android App. It basically uses below line of code to limit the decimal places.
String stringFormatted = String.format("%.03f", floatData);
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Complete source code and other details/ steps of this video are posted in the below link:
https://programmerworld.co/android/ho...
However, the main Java code is copied below also for reference:
package com.programmerworld.fixeddecimalpointsinfloat;
import android.os.Bundle;
import android.view.View;
import android.widget.TextView;
import androidx.activity.EdgeToEdge;
import androidx.appcompat.app.AppCompatActivity;
import androidx.core.graphics.Insets;
import androidx.core.view.ViewCompat;
import androidx.core.view.WindowInsetsCompat;
public class MainActivity extends AppCompatActivity {
private Float aFloatNumber = .621478f;
private TextView textView;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
EdgeToEdge.enable(this);
setContentView(R.layout.activity_main);
ViewCompat.setOnApplyWindowInsetsListener(findViewById(R.id.main), (v, insets) - {
Insets systemBars = insets.getInsets(WindowInsetsCompat.Type.systemBars());
v.setPadding(systemBars.left, systemBars.top, systemBars.right, systemBars.bottom);
textView = findViewById(R.id.textView);
textView.setText(String.valueOf(aFloatNumber));
return insets;
});
}
public void buttonFixDecimalPoints(View view){
textView.setText(String.format("%.03f", aFloatNumber));
}
}
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