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Put buttons at bottom of screen with LinearLayout?

Solution : You can use a RelativeLayout and align it to the bottom with android:layout_alignParentBottom="true"

Replace Text with star (***) while typing in java android studio

 EditText edittxtpassword = findViewById(R.id.edittxtpassword);  edittxtpassword.setTransformationMethod(new  MyPasswordTransformationMethod()); public class MyPasswordTransformationMethod extends PasswordTransformationMethod { @Override public CharSequence getTransformation(CharSequence source, View view) { return new PasswordCharSequence(source); } private class PasswordCharSequence implements CharSequence { private CharSequence mSource; public PasswordCharSequence(CharSequence source) { mSource = source; } public char charAt(int index) { return '*'; } public int length() { return mSource.length(); } public CharSequence subSequence(int start, int end) { return mSource.subSequence(start, end); // Return default } } };     source : https://wordpress.com/post/qforce519945958.wordpress.com/236