android - 单击 fragment 中的 ImageView 时如何打开新 Activity

Question

您好，我是 Android 的新手，有人可以帮助我实现点击我的 ImageView 以打开新 Activity 吗？我尝试了几种代码，但应用程序在启动时崩溃了。这是我的 fragment 代码

fragment 1.xml

<RelativeLayout
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_marginLeft="8dp"
    android:layout_marginRight="8dp"
    android:fontFamily="sans-serif-light"
    android:paddingBottom="15dp"
    android:paddingTop="8dp" >

    <ImageView
        android:id="@+id/selectone"
        android:layout_width="fill_parent"
        android:layout_height="150dp"
        android:background="@drawable/fashion"
        android:clickable="true"
        android:focusable="true"
        android:onClick="onClick"
        android:scaleType="centerCrop" />

    <ImageView
        android:id="@+id/selecttwo"
        android:layout_width="fill_parent"
        android:layout_height="150dp"
        android:layout_below="@+id/selectone"
        android:layout_marginTop="8dp"
        android:background="@drawable/lingerie"
        android:scaleType="centerCrop" />

    <TextView
        android:id="@+id/titlelabel1"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_alignBottom="@+id/selectone"
        android:background="#80000000"
        android:fontFamily="sans-serif-light"
        android:padding="10dp"
        android:text="Fashion"
        android:textColor="#fefefe"
        android:textSize="28sp"
        android:textStyle="italic" />

    <TextView
        android:id="@+id/titlelabel2"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_alignBottom="@+id/selecttwo"
        android:background="#80000000"
        android:fontFamily="sans-serif-light"
        android:padding="10dp"
        android:text="Lingerie"
        android:textColor="#fefefe"
        android:textSize="28sp"
        android:textStyle="italic" />
</RelativeLayout>

fragment 1.java

package com.androidbegin.sidemenututorial;

import android.content.Intent;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.View.OnClickListener;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ImageView;
import com.actionbarsherlock.app.SherlockFragment;

public class Fragment1 extends SherlockFragment {

ImageView fashionImg;

@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
        Bundle savedInstanceState) {
    View rootView = inflater.inflate(R.layout.fragment1, container, false);
    return rootView;

}

@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);

    //get the button view
    fashionImg = (ImageView) getView().findViewById(R.id.selectone);
    //set a onclick listener for when the button gets clicked
    fashionImg.setOnClickListener(new OnClickListener() {
        //Start new list activity
        public void onClick(View v) {
            Intent mainIntent = new Intent(getActivity(), CarouselActivity.class);
            startActivity(mainIntent);
        }
    });
}

Answer 1

如下所示将代码添加到 onActivityCreated() 而不是 onCreate()

 @Override
public void onActivityCreated(Bundle savedInstanceState) {
    // TODO Auto-generated method stub
    super.onActivityCreated(savedInstanceState);
    // get the button view
    fashionImg = (ImageView) getView().findViewById(R.id.selectone);
    // set a onclick listener for when the button gets clicked
    fashionImg.setOnClickListener(new OnClickListener() {
        // Start new list activity
        public void onClick(View v) {
            Intent mainIntent = new Intent(getActivity(),
                    CarouselActivity.class);
            startActivity(mainIntent);
        }
    });
}