Question

我想在点击Listview中的项目时开始新的活动。但是当点击一个项目时，没有任何反应。 Logcat消息中没有任何内容。这两个活动都在AndroidManifest中声明。

ListView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
    public void onItemClick(AdapterView<?> parent, View view, int position, long id) {   
        Intent myIntent = new Intent(view.getContext(), SecondActivity.class);
        myIntent.putExtra("test", "hello"); 
        startActivity(myIntent);
    }
});

Answer 1

首先，您需要在listView对象中设置ItemClick listener。

~~ListView~~ yourListView.setOnItemClickListener

然后您需要在Intent

中传递活动的上下文

Intent myIntent = new Intent （ ~~view.getContext（）~~ ThisActivityName.this，SecondActivity.class）;

代码段：

ListView yourListView = (ListView) findViewById(R.id.listviewid);
yourListView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
    public void onItemClick(AdapterView<?> parent, View view, int position, long id) {   
        Intent myIntent = new Intent(ThisActivityName.this, SecondActivity.class);
        myIntent.putExtra("test", "hello"); 
        startActivity(myIntent);
    }
});

希望它有助于ツ

Answer 2

尝试使用ListView

final ListView list = (ListView) findViewById(R.id.list);
list.setItemsCanFocus(false);

另外，请确保CheckBox内的列表项设置为focusable false

android:focusable="false"
android:focusableInTouchMode="false"

来源：setOnItemClickListener() not working on custom ListView @ Android

Answer 3

尝试使用此代码，

ListView listView=(ListView) findViewById(R.id.list);

listView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {   
    Intent myIntent = new Intent(ActivityName.this, SecondActivity.class);
    myIntent.putExtra("test", "hello"); 
    startActivity(myIntent);
}
});

Answer 4

对于ListView中的多个选项您可以使用以下代码。

 lv_1.setOnItemClickListener(new AdapterView.OnItemClickListener() {
        @Override
        public void onItemClick(AdapterView<?> adapterView, View view, int position, long id) {

            String s = lv_1.getItemAtPosition(position).toString();

            Toast.makeText(getApplicationContext(), s, Toast.LENGTH_LONG).show();


            switch (position) {
                case 0:
                    Intent newActivity = new Intent(MainActivity.this, Android.class);
                    startActivity(newActivity);
                    break;
                case 1:
                    Intent newActivity1 = new Intent(MainActivity.this, Iphone.class);
                    startActivity(newActivity1);
                    break;
                case 2:
                    Intent newActivity2 = new Intent(MainActivity.this, Window.class);
                    startActivity(newActivity2);
                    break;



            }
        }

        ;

    });

如何在ListView.setOnItemClickListener中使用Intent启动Activity？

4 个答案: