Question

下面是FieldActivity.java代码。我正在学习制作简单的骰子应用。
问题是当我设置＆＃34; Highorlow＆＃34; EditText为100或0和
交替按高或低按钮，延迟更新。它是这样的：

High 0.1 - High - 0.2 - High 0.3 - Low 0.4 - Low 0.3 - High - 0.2 - High 0.3.

原因是什么？如何解决这个问题？感谢。

import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.Toolbar;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TextView;
import android.content.SharedPreferences;
import android.preference.PreferenceManager;
import java.text.DecimalFormat;
import android.widget.Toast;

public class FieldActivity extends AppCompatActivity {
    SharedPreferences mySharedPreferences;
    Button Highbtn, Lowbtn;
    EditText BetAmount, Highorlow;
    TextView Balance;
    private static DecimalFormat df1 = new DecimalFormat("0.##");
    private static DecimalFormat df2 = new DecimalFormat("0.#");
    public double betamount1 = 0;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        mySharedPreferences = PreferenceManager.getDefaultSharedPreferences(this);
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_field);
        Highbtn = (Button) findViewById(R.id.Highbtn);
        Lowbtn = (Button) findViewById(R.id.LowBtn);
        BetAmount = (EditText) findViewById(R.id.BetAmount);
        Highorlow = (EditText) findViewById(R.id.Highorlow);
        Balance = (TextView) findViewById(R.id.Balance);
        Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
        setSupportActionBar(toolbar);

        Highbtn.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                double multiplier = Double.valueOf(Highorlow.getText().toString());
                try {
                    multiplier = Double.valueOf(Highorlow.getText().toString());
                } catch (NumberFormatException e) {
                    e.printStackTrace();
                }
                String userData = Balance.getText().toString();
                float balance1 = mySharedPreferences.getFloat("FLOAT_KEY1", Float.parseFloat(userData));
                if (balance1 >= betamount1) {
                    SharedPreferences.Editor editor = mySharedPreferences.edit();
                    double number = Math.random() * 100;
                    TextView Number = (TextView) findViewById(R.id.Number);
                    String Number1 = df1.format(number);
                    String Balance1 = df2.format(balance1);
                    if (multiplier < number) {
                        balance1 += 0.1;
                        editor.putFloat("FLOAT_KEY1", balance1);
                        editor.apply();
                        Balance.setText(Balance1);
                        Balance.setText(String.format("%f", balance1));
                        Number.setText(Number1);
                    } if(multiplier > number) {
                        balance1 -= 0.1;
                        editor.putFloat("FLOAT_KEY1", balance1);
                        editor.apply();
                        Balance.setText(String.format("%f", balance1));
                        Balance.setText(Balance1);
                        Number.setText(Number1);
                    }
                }
                if (balance1 <= 0.00000000) {
                    balance1 += 1;
                    SharedPreferences.Editor editor = mySharedPreferences.edit();
                    editor.putFloat("FLOAT_KEY1", balance1);
                    editor.apply();
                    Balance.setText(String.format("%f", balance1));
                    String Balance1 = df2.format(balance1);
                    Balance.setText(Balance1);
                }
                if (balance1 < betamount1) {
                    SharedPreferences.Editor editor = mySharedPreferences.edit();
                    editor.putFloat("FLOAT_KEY1", balance1);
                    editor.apply();
                    Toast.makeText(getApplicationContext(), "Insufficient Funds", Toast.LENGTH_LONG).show();
                }
            }
        });

        Lowbtn.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                float betamount1 = 0;
                float multiplier = Float.valueOf(Highorlow.getText().toString());;
                try{
                    multiplier = Float.valueOf(Highorlow.getText().toString());
                } catch (NumberFormatException e) {
                    e.printStackTrace();
                }
                String userData = Balance.getText().toString();
                float balance1 = mySharedPreferences.getFloat("FLOAT_KEY1", Float.parseFloat(userData));
                if (balance1 >= betamount1) {
                    SharedPreferences.Editor editor = mySharedPreferences.edit();
                    double number = Math.random() * 100;
                    TextView Number = (TextView) findViewById(R.id.Number);
                    String Number1 = df1.format(number);
                    String Balance1  = df2.format(balance1);
                    if(multiplier > number){
                        balance1 += 0.1;
                        editor.putFloat("FLOAT_KEY1", balance1);
                        editor.apply();
                        Balance.setText(String.format("%f", balance1));
                        Balance.setText(Balance1);
                        Number.setText(Number1);
                    }
                    if(multiplier < number){
                        balance1 -= 0.1;
                        editor.putFloat("FLOAT_KEY1", balance1);
                        editor.apply();
                        Balance.setText(String.format("%f", balance1));
                        Balance.setText(Balance1);
                        Number.setText(Number1);
                    }
                }
                if (balance1 <= 0.00000000) {
                    balance1 += 1.00000000;
                    SharedPreferences.Editor editor = mySharedPreferences.edit();
                    editor.putFloat("FLOAT_KEY1", balance1);
                    editor.apply();
                    Balance.setText(String.format("%f", balance1));
                    String Balance1  = df2.format(balance1);
                    Balance.setText(Balance1);
                }
                if (balance1 < betamount1) {
                    SharedPreferences.Editor editor = mySharedPreferences.edit();
                    editor.putFloat("FLOAT_KEY1", balance1);
                    editor.apply();
                    Toast.makeText(getApplicationContext(), "Insufficient Fund", Toast.LENGTH_LONG).show();
                }
            }
        });
    }
}

Answer 1

而不是使用：

if (balance1 >= betamount1) {
    ....
}
if (balance1 <= 0.00000000) {
    ....
}
if (balance1 < betamount1) {
    ....
}

试

if (balance1 >= betamount1) {
    ....
} else if (balance1 <= 0.00000000) {
    ....
} else {
    ....
}

数量增加和减少延迟

1 个答案: