平板电脑上无法打开设置活动

Gui*_*osa 17 android android-settings

我已经正确设置了pref_general,它的值以及运行intent的代码:

@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) {
        Intent intecao = new Intent(characterList.this, SettingsActivity.class);
        startActivity(intecao);
        return true;
    }

    return super.onOptionsItemSelected(item);
}
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因此,如果我点击选项弹出窗口中的设置,它将在我的手机/ 7"平板电脑中正确打开,但对于更大的平板电脑,如9"或更多,它会给我一个空白的屏幕弹出窗口,而不会写任何内容,例如如下:

在此输入图像描述

我该如何解决这个问题?导致这种情况发生的问题是什么?

---编辑---

这是我的pref_general:

<PreferenceScreen xmlns:android="http://schemas.android.com/apk/res/android">
    <PreferenceCategory
        android:title="Made by Megafuji and Kintups"/>

    <ListPreference
        android:key="console1"
        android:title="Console"
        android:summary="Select your console"
        android:defaultValue="1"
        android:entries="@array/pref_example_list_titles"
        android:entryValues="@array/pref_example_list_values"
        android:negativeButtonText="@null"
        android:positiveButtonText="@null" />

    <ListPreference
        android:key="viewMode"
        android:title="View Mode"
        android:summary="Select your View Mode"
        android:defaultValue="1"
        android:entries="@array/pref_viewMode_list_titles"
        android:entryValues="@array/pref_viewMode_list_values"
        android:negativeButtonText="@null"
        android:positiveButtonText="@null" />

    <ListPreference
        android:key="charsize"
        android:title="Icons Size"
        android:summary="Select character screen size for text and icons."
        android:defaultValue="1"
        android:entries="@array/pref_character_size"
        android:entryValues="@array/pref_character_size_value"
        android:negativeButtonText="@null"
        android:positiveButtonText="@null" />

    <ListPreference
        android:key="tamanhoLetra"
        android:title="Font Size"
        android:summary="Select font size you want for move list."
        android:defaultValue="1"
        android:entries="@array/pref_font_size"
        android:entryValues="@array/pref_font_size_value"
        android:negativeButtonText="@null"
        android:positiveButtonText="@null" />

    <CheckBoxPreference
        android:key="screenDimming"
        android:title="Disable screen dimming in this app"
        android:summary="Disable screen locking/turning off."
        android:defaultValue="false"
        />

    <CheckBoxPreference
        android:key="frame"
        android:title="Show Frame Date"
        android:summary="Show Frame Data for All Moves "
        android:defaultValue="false"
        />

    <CheckBoxPreference
        android:key="damage"
        android:title="Show Damage"
        android:summary="Show Damage for All Moves "
        android:defaultValue="false" />

    <PreferenceCategory
        android:title="Contact us: mkxmoves@gmail.com"/>
</PreferenceScreen>
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Gui*_*osa 4

找到答案了!

按照Android 开发人员设置,我需要做的就是,如果我正在为 Android 3.0(API 级别 11)及更高版本进行开发,我需要使用 Preference Fragments,它是扩展 PreferenceFragment 的另一个类。

所以代码将使用这些参数:

public static class SettingsFragment extends PreferenceFragment {
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);

        // Load the preferences from an XML resource
        addPreferencesFromResource(R.xml.preferences);
    }
    ...
}
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旧的 SettingsActivity 现在必须扩展 Activity 而不是 PreferenceActivity,如下所示:

public class SettingsActivity extends Activity {
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);

        // Display the fragment as the main content.
        getFragmentManager().beginTransaction()
                .replace(android.R.id.content, new SettingsFragment())
                .commit();
    }
}
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