当点击文本本身时，TextView(在ListView中)的onClickItem没有注册

Question

我做了一个InfoscreenActivity，它会在我的应用程序中显示一个"设置/关于"页面(包含应用程序版本信息，许可证，联系方式，设置和备份选项)。该页面上的项目是在ListView中使用名为InfoscreenAdapter的自定义ArrayAdapter生成的。

下面是相关的类和xml布局文件。

InfoscreenActivity:

public class InfoscreenActivity extends ActionBarActivity {
    private static final String TAG = "InfoscreenActivity";
    private InfoscreenItem appVersion;
    private InfoscreenItem iiLicenses;
    private InfoscreenItem contactUs = new InfoscreenItem("Contact us");
    private InfoscreenItem iiSetup = new InfoscreenItem("Launch Setup");
    private InfoscreenItem iiBackup = new InfoscreenItem("Perform Backup");
    ListView lv;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        if(AppConfig.DEBUG) Log.i(TAG, "launching onCreate() ...");
        String appVersionString;
        if(AppConfig.DEBUG) Log.i(TAG, "trying to fetch the version name ...");
        try {
            appVersionString = SetupActivity.getVersionName(this);
            appVersion = new InfoscreenItem("App version", appVersionString);
        } catch (Exception e) {
            if(AppConfig.DEBUG) Log.e(TAG, e.getMessage());
        }
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_infoscreen);
        iiLicenses = new InfoscreenItem(getResources().getString(R.string.title_activity_licenses));
        // Get ListView object from xml
        lv = (ListView) findViewById(R.id.infoscreenListViewID);
        // Defined Array values to show in ListView
        InfoscreenItem[] items = new InfoscreenItem[] {appVersion, contactUs, iiLicenses, iiSetup, iiBackup};
        // Define a new InfoscreenAdapter
        InfoscreenAdapter adapter = new InfoscreenAdapter(this, items);
        // Assign adapter to ListView
        if(AppConfig.DEBUG) Log.i(TAG, "setting adapter");
        lv.setAdapter(adapter);
        // React to user clicks on item
        lv.setOnItemClickListener(new AdapterView.OnItemClickListener() {
            public void onItemClick(AdapterView<?> parentAdapter, View view, int position,
                                    long id) {
                if(AppConfig.DEBUG) Log.i(TAG, "item " + Integer.toString(position) + " clicked.");
                // for the "Contact us" item
                if(position == 1) {
                    TextView clickedView = (TextView) view.findViewById(R.id.textView);
                    onContactClick(clickedView);
                }
                // for the "Licenses" item
                if(position == 2) {
                    TextView clickedView = (TextView) view.findViewById(R.id.textView);
                    onLicensesClick(clickedView);
                }
                // for the "Setup" item
                if (position == 3) {
                    if (AppConfig.DEBUG) Log.d(TAG, "launching Setup Activity...");
                    startActivity(new Intent(getApplication(), SetupActivity.class));
                }
                // for the "Backup" item
                if (position == 4) {
                    Intent iBackup = new Intent(getApplication(), BackupAndRestoreActivity.class);
                    iBackup.putExtra("MODE", 1);
                    startActivity(iBackup);
                }
            }
        });
        getSupportActionBar().setDisplayHomeAsUpEnabled(true);
        if(AppConfig.DEBUG) Log.i(TAG, "exiting onCreate() ...");
    }
    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        if(AppConfig.DEBUG) Log.i(TAG, "onCreateOptionsMenu() ...");
        // Inflate the menu; this adds items to the action bar if it is present.
        getMenuInflater().inflate(R.menu.menu_infoscreen, menu);
        if(AppConfig.DEBUG) Log.i(TAG, "exiting onCreateOptionsMenu() ...");
        return true;
    }
    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        // Handle action bar item clicks here. The action bar will
        // automatically handle clicks on the Home/Up button, so long
        // as you specify a parent activity in AndroidManifest.xml.
        int id = item.getItemId();
        //noinspection SimplifiableIfStatement
        if (id == R.id.action_settings) {
            return true;
        }
        else if (id == android.R.id.home) {
            finish();
            return true;
        }
        return super.onOptionsItemSelected(item);
    }
    public void onContactClick(View v) {
        Intent email = new Intent(Intent.ACTION_SEND);
        email.putExtra(Intent.EXTRA_EMAIL, new String[]{"[e-mail]"});
        email.putExtra(Intent.EXTRA_SUBJECT, "(subject)");
        email.putExtra(Intent.EXTRA_TEXT, "(message)");
        email.setType("message/rfc822");
        startActivity(Intent.createChooser(email, "Choose an Email client :"));
    }
    public void onLicensesClick(View v) {
        if(AppConfig.DEBUG) Log.i(TAG, "onLicensesClick() ...");
        startActivity(new Intent(InfoscreenActivity.this, LicensesActivity.class));
    }
}

适配器InfoscreenAdapter:

public class InfoscreenAdapter extends ArrayAdapter<InfoscreenItem> {
    private static final String TAG = "InfoscreenAdapter";
    private Context context;
    private InfoscreenItem[] infoscreenItems;
    // constructor
    public InfoscreenAdapter(Context context, InfoscreenItem[] infoscreenItems) {
        super(context, -1, infoscreenItems);
        if(AppConfig.DEBUG) Log.i(TAG, "entering InfoscreenAdapter constructor");
        this.context = context;
        this.infoscreenItems = infoscreenItems;
    }
    @Override
    public View getView(int position, View convertView, ViewGroup parent) {
        if(AppConfig.DEBUG) Log.i(TAG, "fetching View " + Integer.toString(position) +
                ". Title: " + infoscreenItems[position].getItemTitle() + ", name: " +  infoscreenItems[position].getItemName());
        // the infoscreenItem has only 1 line (title)
        if(infoscreenItems[position].getItemName().equals("")) {
            // inflate the Layout from the infoscreen_single_line.xml
            LayoutInflater inflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
            convertView = inflater.inflate(R.layout.item_infoscreen_single_line, parent, false);
            // get the TextView from the layout
            TextView tv = (TextView) convertView.findViewById(R.id.textView);
            //set its text
            tv.setText(infoscreenItems[position].getItemTitle());
            return convertView;
        }
        // the infoscreenItem has 2 lines (title & name)
        else {
            // inflate the Layout from the infoscreen_dual_line xml
            LayoutInflater inflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
            convertView = inflater.inflate(R.layout.item_infoscreen_dual_line, parent, false);
            // get the TextView for the title
            TextView appVersionTextView = (TextView) convertView.findViewById(R.id.textView_title);
            //set its text
            appVersionTextView.setText(infoscreenItems[position].getItemTitle());
            // get the TextView for the version name
            TextView appVersionNameTextView = (TextView) convertView.findViewById(R.id.textView_versionName);
            //set its text
            appVersionNameTextView.setText(infoscreenItems[position].getItemName());
            return convertView;
        }
    }
}

InfoscreenItem类:

public class InfoscreenItem {
    private String itemTitle;
    private String itemName;
    // constructors
    public InfoscreenItem () {
        itemTitle = "";
        itemName = "";
    }
    public InfoscreenItem (String iTitle){
        itemTitle = iTitle;
        itemName = "";
    }
    public InfoscreenItem (String iTitle, String iName){
        itemTitle = iTitle;
        itemName = iName;
    }
    public String getItemTitle() {
        return itemTitle;
    }
    public String getItemName() {
        return itemName;
    }
}

用于格式化的xml文件。

activity_infoscreen.xml:

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:id="@+id/container"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context="at.dimi3.crew2go.InfoscreenActivity"
    tools:ignore="MergeRootFrame"
    android:orientation="vertical">
    <ListView
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:id="@+id/infoscreenListViewID"
        android:clickable="true" />
</LinearLayout>

item_infoscreen_single_line.xml:

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical" android:layout_width="match_parent"
    android:layout_height="match_parent">
    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:textAppearance="?android:attr/textAppearanceMedium"
        android:text="Medium Text"
        android:id="@+id/textView"
        android:paddingLeft="20dp"
        android:paddingTop="10dp"
        android:paddingRight="20dp"
        android:paddingBottom="10dp"
        android:clickable="true" />
</LinearLayout>

item_infoscreen_dual_line.xml:

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical" android:layout_width="match_parent"
    android:layout_height="match_parent">
    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:textAppearance="?android:attr/textAppearanceMedium"
        android:text="Medium Text"
        android:id="@+id/textView_title"
        android:paddingLeft="20dp"
        android:paddingTop="10dp"
        android:paddingRight="20dp"
        android:paddingBottom="5dp"
        android:clickable="true" />
    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:textAppearance="?android:attr/textAppearanceSmall"
        android:text="Small Text"
        android:id="@+id/textView_versionName"
        android:paddingLeft="20dp"
        android:paddingRight="20dp"
        android:paddingBottom="10dp"
        android:clickable="true" />
</LinearLayout>

现在一切都如预期的那样工作，除了在"Infoscreen"的ListView中，项目只能在文本旁边点击。有没有办法让整个ListView项目对点击做出反应，不管你在哪里点击项目?我错过了什么在xml布局模板?我试过设置android:clickable="true"，删除它，周围改变android:layout_width="wrap_content"到match_parent或fill_parent(如建议在其他类似的线程-那些是不可点击的虽然，所以不完全相同的问题，因为我有)。

Answer 1

在你的item_infoscreen_dual_line.xml或item_infoscreen_single_line.xml(我不知道哪一个导致你的麻烦)给你的linearLayout一个id。现在找到该布局并在该布局上设置OnClickListener

Answer 2

很简单。你已经给你的textview填充。但是你想要点击整个LinearLayout项目。这样就不用给TextView写padding了，给LinearLayout写

Answer 3

好的，非常感谢您的输入。做了更多的谷歌搜索，我偶然发现了下面的例子，并在我的Android Studio中创建了这个确切的项目。点击在这个例子中无处不在，所以我开始逐个删除xml属性，以匹配示例中的xml，事实证明，删除android:clickable="true"解决了这个问题。我有点困惑(这听起来自相矛盾)，但它是有效的。