Java EditText.getText（）.toString（）与其他字符串的比较失败

祝酒词一直说访问被拒绝，即使我填写了正确的pin

我需要将用户锁定到kiosk模式的应用程序中，只有使用正确的pin，他们才能访问设置和退出选项

            public void onClick(View v) {

            AlertDialog.Builder alert = new AlertDialog.Builder(FullscreenActivity.this);
            alert.setTitle("PIN:");
            //alert.setMessage("Message");

            final EditText pinEntry = new EditText(FullscreenActivity.this);
            alert.setView(pinEntry);
            alert.setPositiveButton("Ok", new DialogInterface.OnClickListener() {
                public void onClick(DialogInterface dialog, int whichButton) {
                    String pin = pinEntry.getText().toString().trim();
                    String secret = "0000";
                    if (pin == secret){
                        Toast.makeText(getApplicationContext(),"Access Approved", Toast.LENGTH_SHORT).show();
                    }
                    else {
                        Toast.makeText(getApplicationContext(),"Access Denied", Toast.LENGTH_SHORT).show();
                    }
                    Toast.makeText(getApplicationContext(),pin, Toast.LENGTH_SHORT).show();
                }
            });

            alert.setNegativeButton("Cancel", new DialogInterface.OnClickListener() {
                public void onClick(DialogInterface dialog, int whichButton) {
                }
            });
            alert.show();
        }
    });

==参考等式测试

---

.equals测试值相等。

字符串与equals或equalsIgnoreCase进行比较，而不是与您正在使用的双equals==进行比较。如果if语句对cap敏感，请将其从ifpin==secret更改为ifpin.equalsecret；如果大小写不重要，请将ifpin.equalsIgnoreCasesecret更改为ifpin.equalsecret。

请尝试pin.equalsecret，而不是“pin==secret”

public void onClick(DialogInterface dialog, int whichButton) {
                    String pin = pinEntry.getText().toString().trim();
                    String secret = "0000";
                    if (pin.equalsIgnoreCase( secret)){
                        Toast.makeText(getApplicationContext(),"Access Approved", Toast.LENGTH_SHORT).show();
                    }
                    else {
                        Toast.makeText(getApplicationContext(),"Access Denied", Toast.LENGTH_SHORT).show();
                    }
                    Toast.makeText(getApplicationContext(),pin, Toast.LENGTH_SHORT).show();
                }
            });