Question

当我点击按钮时我无法进入下一个活动..但是如果删除比较字符串...意图工作正常..有人可以帮我弄清楚什么是错的吗？

public class MainActivity extends AppCompatActivity {
    private Button b1;
    private EditText et;
    String s;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        et = (EditText)findViewById(R.id.pass);
        s = et.getText().toString();
        b1 = (Button)findViewById(R.id.clickhere);
        b1.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                if(et.getText().toString().equals(R.string.Ronnie))
                {
                    Intent myIntent = new Intent(MainActivity.this, Thought.class);
                    startActivity(myIntent);
                }
                else
                {
                    Toast.makeText(getApplicationContext(),"Not for you",Toast.LENGTH_SHORT);
                }
            }
        });
    }
}

Answer 1

 if(et.getText().toString().trim().equals(getString(R.string.Ronnie).trim()))
    {
        Intent myIntent = new Intent(MainActivity.this, Thought.class);
        startActivity(myIntent);
    }
    else
    {
        Toast.makeText(getApplicationContext(),"Not for you",Toast.LENGTH_SHORT);
    }

Answer 2

您正在将int id与String进行比较。

 if(et.getText().toString().equals(R.string.Ronnie))
        {
            Intent myIntent = new Intent(MainActivity.this, Thought.class);
            startActivity(myIntent);
        }
        else
        {
            Toast.makeText(getApplicationContext(),"Not for you",Toast.LENGTH_SHORT);
        }

将此更改为。

 if(et.getText().toString().equals(getString(R.string.Ronnie)))
    {
        Intent myIntent = new Intent(MainActivity.this, Thought.class);
        startActivity(myIntent);
    }
    else
    {
        Toast.makeText(getApplicationContext(),"Not for you",Toast.LENGTH_SHORT);
    }

按钮单击事件在登录屏幕上不起作用

2 个答案: