Question

我想在当前视图中启动一个新的活动意图！我怎么能这样做？

Answer 1

经过一次精彩的搜索，我得到了它。我以这种方式放置了我的第一个布局！

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent">

    <LinearLayout android:id="@+id/contentViewLayout" 
        android:orientation="vertical"
        android:layout_width="fill_parent" 
        android:layout_height="fill_parent" 
        android:background="@color/white" 
        android:layout_marginBottom="56dip"/>

        <HorizontalScrollView
            android:scrollbarSize="2dip"
            android:layout_alignParentBottom="true" 
            android:layout_width="fill_parent"
            android:background="@drawable/background" android:layout_height="56dip">

    </HorizontalScrollView>
</RelativeLayout>

当我必须在其中开始新活动时，我使用以下代码......

public class MainActivityWithTabbar extends ActivityGroup implements OnClickListener{

    public LocalActivityManager activityManager;
    public LinearLayout contentViewLayout;
    public LinearLayout.LayoutParams contentViewLayoutParams;
    private Context context;
    public Intent nextActivit;

    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        context = this;
        activityManager = getLocalActivityManager();
        setContentView(R.layout.mainActivityLayout);
        contentViewLayout = (LinearLayout)findViewById(R.id.contentViewLayout);
        contentViewLayoutParams = new LinearLayout.LayoutParams(LayoutParams.FILL_PARENT, LayoutParams.FILL_PARENT); 

        nextActivit = new Intent(this, NextActivity.class);
        startGroupActivity("activity1", nextActivit);

    }

    public void startGroupActivity(String id, Intent intent)
    {
        contentViewLayout.removeAllViews();

        View view = activityManager.startActivity(id, intent).getDecorView();
        contentViewLayout.addView(view, contentViewLayoutParams);
    }
}

所以在这种情况下它的工作......

Answer 2

您的意思是视图中包含的活动吗？你不能这样做。视图包含可见元素，活动用于运行程序代码。

但是，如果您的意思是通过与视图交互来启动新活动，就像在用户单击按钮时一样，您需要实现onClick（）方法，并从那里开始活动。

layout.xml
...
android:onClick="onButton"

MyActivity.java
...
public void onButton(View v) {
  Intent i = new Intent(mCtx, OtherActivity.class);
  startActivityForResult(i, OPTION);
}

如何在同一视图中启动子活动？

2 个答案: