Question

我正在尝试在单击列表视图中的项目时启动新活动，但它似乎不起作用。具体来说，正在调用onClick方法，如果我注释掉startActivity，一切正常，但这不会改变活动。所以，我认为它与Intent上下文有关这是代码：

public class ListViewRemovalAnimation extends Activity {

StableArrayAdapter mAdapter;
ListView mListView;
BackgroundContainer mBackgroundContainer;
boolean mSwiping = false;
boolean mItemPressed = false;
HashMap<Long, Integer> mItemIdTopMap = new HashMap<Long, Integer>();

public List<Recipe> recipes = new ArrayList<Recipe>();

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

    mBackgroundContainer = (BackgroundContainer) findViewById(R.id.listViewBackground);
    mListView = (ListView) findViewById(R.id.listview);

    mAdapter = new StableArrayAdapter(this,R.layout.opaque_text_view, cheeseList,
            mTouchListener);
    mListView.setAdapter(mAdapter);

    mListView.setOnItemClickListener(new OnItemClickListener() {
        @Override
        public void onItemClick(AdapterView<?> adapterView, View view, int position, long l) {
            Intent intent = new Intent(ListViewRemovalAnimation.this, NewRecipe.class);
            intent.putExtra("title", recipes.get(position).toString());

            Gson gs = new Gson();
            String bookmarks;
            for (int i = 0; i < recipes.size(); i++) {
                bookmarks = gs.toJson(recipes.get(i));
                intent.putExtra("bookmarked" + i, bookmarks);
            }
            ListViewRemovalAnimation.this.startActivity(intent);
        }
    });
}

是的，我已在android清单中声明了这两项活动。

<application
    android:allowBackup="true"
    android:icon="@drawable/home_icon"
    android:label="@string/app_name"
    android:theme="@style/Theme.AppCompat" >
    <activity
        android:name="com.example.feastbeast.MainActivity"
        android:label="Home" >
        <intent-filter>
            <action android:name="android.intent.action.MAIN" />
            <category android:name="android.intent.category.LAUNCHER" />
        </intent-filter>
    </activity>
    <activity
        android:name="com.example.feastbeast.NewRecipe"
        android:label="Recipe" >
    </activity>
    <activity
        android:name="com.example.feastbeast.ListViewRemovalAnimation"
        android:label="Bookmarked" >
    </activity>
</application>

如果需要，您可以在此处查看完整代码：https://github.com/david-hong/feastBeast

我检查了以下内容，但似乎都不起作用（How do i use the OnItemClickListener to start a new intent based on which item is clicked?和onItemClick, Intent, startActivity errors）。我假设第二个不起作用，因为活动扩展了ListActivity，我正在扩展Activity。

非常感谢任何帮助：）

Android startActivity OnItemClickListener（）不起作用

0 个答案: