Question

在尝试通过两个EditText保存（来自用户）数据输入并将其传输到另一个应在其中显示为ViewText的活动时遇到了问题。

活动/数据输入中的代码

public class DatosBasicos extends AppCompatActivity {

EditText presion;
EditText ritmo;
Button atriaje;
String valorritmo;
String valorpresion;

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_datos_basicos);

    atriaje = (Button) findViewById(R.id.triaj);
    presion = (EditText) findViewById(R.id.presion);
    ritmo = (EditText) findViewById(R.id.ritmo);
    atriaje.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View view) {

            valorritmo = ritmo.getText().toString();
            valorpresion = presion.getText().toString();
            Intent i = new Intent(DatosBasicos.this, Triaje.class);
            i.putExtra("PRESION",valorpresion);
            i.putExtra("RITMO",valorritmo);
            startActivity(i);
            finish();
        }
    });

}
}

活动/数据输出中的代码

public class Triaje extends AppCompatActivity {

TextView rit, pres;
String ritS, presS;

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_triaje);

    rit = (TextView) findViewById(R.id.ritmoval);
    pres = (TextView) findViewById(R.id.presionval);

    ritS = getIntent().getExtras().getString("PRESION");
    presS = getIntent().getExtras().getString("RITMO");

    rit.setText(ritS);
    pres.setText(presS);
}
}

错误日志

E/AndroidRuntime: FATAL EXCEPTION: main
    Process: com.example.aplicaciontriaje, PID: 2569
    java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.aplicaciontriaje/com.example.aplicaciontriaje.Triaje}: java.lang.ClassCastException: androidx.constraintlayout.widget.ConstraintLayout cannot be cast to android.widget.TextView
        at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2913)
        at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:3048)
        at android.app.servertransaction.LaunchActivityItem.execute(LaunchActivityItem.java:78)
        at android.app.servertransaction.TransactionExecutor.executeCallbacks(TransactionExecutor.java:108)
        at android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:68)
        at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1808)
        at android.os.Handler.dispatchMessage(Handler.java:106)
        at android.os.Looper.loop(Looper.java:193)
        at android.app.ActivityThread.main(ActivityThread.java:6669)
        at java.lang.reflect.Method.invoke(Native Method)
        at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:493)
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:858)
     Caused by: java.lang.ClassCastException: androidx.constraintlayout.widget.ConstraintLayout cannot be cast to android.widget.TextView
        at com.example.aplicaciontriaje.Triaje.onCreate(Triaje.java:19)
        at android.app.Activity.performCreate(Activity.java:7136)
        at android.app.Activity.performCreate(Activity.java:7127)
        at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1271)
        at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2893)
        at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:3048) 
        at android.app.servertransaction.LaunchActivityItem.execute(LaunchActivityItem.java:78) 
        at android.app.servertransaction.TransactionExecutor.executeCallbacks(TransactionExecutor.java:108) 
        at android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:68) 
        at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1808) 
        at android.os.Handler.dispatchMessage(Handler.java:106) 
        at android.os.Looper.loop(Looper.java:193) 
        at android.app.ActivityThread.main(ActivityThread.java:6669) 
        at java.lang.reflect.Method.invoke(Native Method) 
        at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:493) 
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:858) 
Disconnected from the target VM, address: 'localhost:8619', transport: 'socket'

该应用程序应该做什么我希望将数据输入到Triaje活动中，并显示在两个对应的ViewText中。我收到以下错误：“应用程序不断停止”

Answer 1

是否可以调试系统？这样您就可以清楚地了解错误的出处！然后准确说出哪一行会给出错误！

保存数据并传输到另一个活动时出现问题（使用FireBase）

1 个答案: