Try this.
Use below code for pass value from first activity to second activity.
Intent mInSecond = new Intent(FirstActivity.this, SecondActivity.class);
mInSecond.putExtra("Value", mEdttxtpassword.getText().toString());
startActivity(mInSecond);
Use below code for get value
Bundle bdl = getIntent().getExtras();
String mValue = bdl.getString("Value");
solved how to get value in edittext in an actvity from second activity?