如何在Android应用程序中运行其他活动？

那是我的日志 当我启动我的应用程序时，点击按钮，它必须转到另一个活动，但会出现初始（主）活动（布局） 请帮帮我

11-21 17:51:04.458 1194-1194/com.example.admin.upgrade_your_life D/libEGL: loaded /system/lib/egl/libGLESv2_genymotion.so
11-21 17:51:04.778 1194-1194/com.example.admin.upgrade_your_life W/EGL_genymotion: eglSurfaceAttrib not implemented
11-21 17:51:04.790 1194-1194/com.example.admin.upgrade_your_life D/OpenGLRenderer: Enabling debug mode 0
11-21 17:51:20.714 1194-1194/com.example.admin.upgrade_your_life I/Choreographer: Skipped 35 frames!  The application may be doing too much work on its main thread.
11-21 17:51:21.254 1194-1194/com.example.admin.upgrade_your_life W/EGL_genymotion: eglSurfaceAttrib not implemented
11-21 17:51:27.414 1194-1194/com.example.admin.upgrade_your_life W/EGL_genymotion: eglSurfaceAttrib not implemented
11-21 17:51:28.626 1194-1194/com.example.admin.upgrade_your_life W/EGL_genymotion: eglSurfaceAttrib not implemented
11-21 17:51:40.166 1194-1194/com.example.admin.upgrade_your_life W/EGL_genymotion: eglSurfaceAttrib not implemented
11-21 17:51:42.674 1194-1194/com.example.admin.upgrade_your_life W/EGL_genymotion: eglSurfaceAttrib not implemented
11-21 17:51:43.370 1194-1194/com.example.admin.upgrade_your_life W/EGL_genymotion: eglSurfaceAttrib not implemented

这是我的第一个活动

public class MainActivity extends AppCompatActivity {


Button upgrade_button;

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

    upgrade_button = (Button) findViewById(R.id.upgrade);
    upgrade_button.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            startActivity (new Intent(getApplicationContext(),UprgadeActivity.class));
        }
    });


    Bundle bundle1 = getIntent().getExtras();
    if (bundle1 != null) {
        boolean check = bundle1.getBoolean("checkbox");
    }


    }

第二项活动

public class BrainUpgrade extends AppCompatActivity  {


CheckBox checkbox;
boolean checkbox1;
@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.brain_upgrade);

    checkbox = (CheckBox) findViewById(R.id.checkBox);
    checkbox1 = checkbox.isChecked();

    Intent intent = new Intent (getApplicationContext(),MainActivity.class);
    Bundle bundle1 = new Bundle();
    bundle1.putBoolean("checkbox",checkbox1);
    intent.putExtras(bundle1);
    startActivity(intent);


}

在这个活动中是我的按钮

public class UprgadeActivity extends AppCompatActivity {

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

    Button body_upgrade;
    body_upgrade = (Button) findViewById(R.id.button3);
    body_upgrade.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            startActivity(new Intent(getApplicationContext(), BodyUpgrade.class));
        }
    });

    Button brain_upgrade;
    brain_upgrade = (Button) findViewById(R.id.brain_upgrade);
    brain_upgrade.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            startActivity(new Intent(getApplicationContext(),BrainUpgrade.class));
        }
    });

}

我的Manifest.file文件`

`

但这将显示初始（主要）活动（布局）

在

brain\u upgrade

按钮上，单击您的

upgrade活动

您正在开始

brain upgrade

活动

但在BrainUpgrade的创建过程中，您开始了main活动

---

这就是您看到主布局的原因。

为什么不提供触发导航到其他活动的代码？粘贴java代码首先，您给出的日志上没有显示错误，其次，为帮助您的人，您必须提供一些代码，以便我们能够指出您的错误所在粘贴您的AndroidManifest.xml。为什么要在BrainActivity#onCreate中启动Main活动？请在BrainUpgrade Activity中设置启动MainActivity的必要条件。否则，您将从UpgradeActivity重定向到MainActivity您看到了吗？当您真的想从BrainUpgradeActivity启动MainActivity时？我从不想这样做我从UpgradeActivity启动BrainActivity

<application
    android:allowBackup="true"
    android:icon="@mipmap/ic_launcher"
    android:label="@string/app_name"
    android:theme="@style/AppTheme" >
    <activity
        android:name=".MainActivity"
        android:label="@string/app_name" >
        <intent-filter>
            <action android:name="android.intent.action.MAIN" />

            <category android:name="android.intent.category.LAUNCHER" />
        </intent-filter>
    </activity>
    <activity
        android:name=".UprgadeActivity"
        android:label="@string/title_activity_uprgade" >
    </activity>
    <activity
        android:name=".BodyUpgrade"
        android:label="@string/title_activity_body_upgrade" >
    </activity>
    <activity
        android:name=".BrainUpgrade"
        android:label="@string/title_activity_brain_upgrade" >
    </activity>
    <activity
        android:name=".ListActivity"
        android:label="@string/title_activity_list" >
    </activity>
    <activity
        android:name=".Main2Activity"
        android:label="@string/title_activity_main2"
        android:theme="@style/AppTheme.NoActionBar" >
    </activity>
</application>