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通过应用程序兼容性preferenceActivity添加工具栏preferenceActivity导致重叠

本文介绍了通过应用程序兼容性preferenceActivity添加工具栏preferenceActivity导致重叠的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！

问题描述

我已通过不见了

我用应用程序兼容性-V7：23.0.1 和支持-V4：23.0.1

使用前 AppCompay preferenceActivity ，我的 preferenceActivity 看起来没有工具栏下面。

无工具栏

 公共类JStock preferenceActivity扩展$ P $ {pferenceActivity    公共无效的onCreate（捆绑savedInstanceState）{
        super.onCreate（savedInstanceState）;        如果（savedInstanceState == NULL）{
            //显示片断为主要内容。
            JStock preferenceFragment jStock preferenceFragment = JStock preferenceFragment.newInstance（）;
            jStock preferenceFragment.setArguments（this.getIntent（）getExtras（））;
            。this.getFragmentManager（）调用BeginTransaction（）取代（android.R.id.content，jStock preferenceFragment）.commit（）。
    }
}

使用后 AppCompay preferenceActivity ，有些工具栏初始化code，结果看起来以下

未如预期的结果： -


  1. 的工具栏与 preferenceFragment 重叠

  2. 当触及工具栏，该事件将被 preferenceFragment 消耗。这意味着，当你触摸工具栏上的表头preference将被替代的感动。

使用工具栏

 公共类JStock preferenceActivity扩展应用程序兼容性$ P $ {pferenceActivity
    公共无效的onCreate（捆绑savedInstanceState）{
        super.onCreate（savedInstanceState）;        如果（savedInstanceState == NULL）{
            //显示片断为主要内容。
            JStock preferenceFragment jStock preferenceFragment = JStock preferenceFragment.newInstance（）;
            jStock preferenceFragment.setArguments（this.getIntent（）getExtras（））;
            。this.getFragmentManager（）调用BeginTransaction（）取代（android.R.id.content，jStock preferenceFragment）.commit（）。
        }
        initToolbar（）;
    }    私人无效initToolbar（）{
        工具栏工具栏;        如果（android.os.Build.VERSION.SDK_INT＆GT; = android.os.Build.VERSION_ codeS.ICE_CREAM_SANDWICH）{
            ViewGroup中的root =（ViewGroup中）findViewById（android.R.id.list）.getParent（）的getParent（）的getParent（）。
            工具栏=（栏）LayoutInflater.from（本）.inflate（R.layout.toolbar，根，假）;
            root.addView（工具栏，0）;
        }其他{
            工具栏= NULL;
        }        setSupportActionBar（工具栏）;
        getSupportActionBar（）setDisplayHomeAsUpEnabled（真）。
    }
}

我的工具栏

toolbar.xml 

 ＆LT; android.support.v7.widget.Toolbar的xmlns：机器人=htt​​p://schemas.android.com/apk/res/android
    的xmlns：程序=htt​​p://schemas.android.com/apk/res-auto
    机器人：ID =@ + ID /工具栏
    机器人：layout_height =WRAP_CONTENT
    机器人：layout_width =match_parent
    安卓了minHeight =？ATTR / actionBarSize
    机器人：ATTR / colorPrimary背景=
    机器人：海拔=4DP
    应用：主题=@风格/ ThemeOverlay.AppCompat.Dark.ActionBar
    应用：popupTheme =@风格/ ThemeOverlay.AppCompat.Light＆GT;    ＆LT;  - 机器人：海拔=4DP用于因http://www.google.com/design/spec/what-is-material/elevation-shadows.html#elevation-shadows-elevation-android- - ＆GT;＆LT; /android.support.v7.widget.Toolbar>

我想知道，我有什么做错了，这会导致工具栏重叠 preferenceFragment


解决方案

经过一番研究，并从的，我设法让它通过。


  1. 从应用程序兼容性preferenceActivity 更改，以 AppCompatActivity + preferenceFragmentCompat

下面的解决方案是可行的API 10以上。

JStock preferenceActivity.java 

 公共类JStock preferenceActivity延伸AppCompatActivity {    @燮pressWarnings（德precation）
    @燮pressLint（NewApi）
    @覆盖
    公共无效的onCreate（捆绑savedInstanceState）{
        super.onCreate（savedInstanceState）;        的setContentView（R.layout.jstock_ preference_activity）;        initToolbar（）;        如果（savedInstanceState == NULL）{
            //显示片断为主要内容。
            JStock preferenceFragment jStock preferenceFragment = JStock preferenceFragment.newInstance（）;
            jStock preferenceFragment.setArguments（this.getIntent（）getExtras（））;
            。this.getSupportFragmentManager（）调用BeginTransaction（）取代（R.id.content，jStock preferenceFragment）.commit（）。
        }
    }

JStock preferenceFragment.java 

 公共类JStock preferenceFragment扩展preferenceFragmentCompat实现共享preferences.OnShared preferenceChangeListener，preferenceFragmentCompat.On $ P $ {pferenceDisplayDialogCallback    公共静态JStock preferenceFragment的newInstance（）{
        返回新JStock preferenceFragment（）;
    }

然而，通过这样做，有一个缺点。您的previous定制对话preference 不再起作用。为了解决这个问题，需要


  1. 替换对话preference 与 preferenceDialogFragmentCompat 。

  2. 替换对话preference 在XML与目录preference 。 （我不能完全确定是否目录preference 作为替代是一个正确的做法。它的工作原理是这样）

  3. 手动显示 preferenceDialogFragmentCompat 在 preferenceFragmentCompat 的上preferenceDisplayDialog 。

JStock preferenceFragment.java 

 公共类JStock preferenceFragment扩展preferenceFragmentCompat实现共享preferences.OnShared preferenceChangeListener，preferenceFragmentCompat.On $ P $ {pferenceDisplayDialogCallback    公共静态JStock preferenceFragment的newInstance（）{
        返回新JStock preferenceFragment（）;
    }    ////////////////////////////////////////////////// //////////////////////////////////////////////
    //显示定制对话框preference。
    私人无效秀preferenceDialogFragmentCompat（preferenceDialogFragmentCompat preferenceDialogFragmentCompat）{
        preferenceDialogFragmentCompat.setTargetFragment（此，0）;
        preferenceDialogFragmentCompat.show（this.getFragmentManager（），android.support.v7 preference preferenceFragment.DIALOG。）;
    }    私人无效showCurrencySymbol preferenceDialogFragmentCompat（preference preference）{
        CURRENCYSYMBOL preferenceDialogFragmentCompat CURRENCYSYMBOL preferenceDialogFragmentCompat = CURRENCYSYMBOL preferenceDialogFragmentCompat.newInstance（preference.getKey（））;
        展会preferenceDialogFragmentCompat（CURRENCYSYMBOL preferenceDialogFragmentCompat）;
    }    //显示定制对话框preference。
    ////////////////////////////////////////////////// //////////////////////////////////////////////    ////////////////////////////////////////////////// //////////////////////////////////////////////
    //当我们使用自定义对话框preference回调。
    @覆盖
    公共片段getCallbackFragment（）{
        返回此;
    }    @覆盖
    在preferenceDisplayDialog公共布尔（preferenceFragmentCompat preferenceFragmentCompat，preference preference）{
        最终字符串键= preference.getKey（）;        如果（_CURRENCY_SYMBOL_OPTIONS.equals（键））{
            showCurrencySymbol preferenceDialogFragmentCompat（preference）;
            返回true;
        }        返回false;
    }
    //当我们使用自定义对话框preference回调。
    ////////////////////////////////////////////////// //////////////////////////////////////////////

CURRENCYSYMBOL preferenceDialogFragmentCompat.java 

 公共类CURRENCYSYMBOL preferenceDialogFragmentCompat扩展$ P $ {pferenceDialogFragmentCompat    公共CURRENCYSYMBOL preferenceDialogFragmentCompat（）{
    }    公共静态CURRENCYSYMBOL preferenceDialogFragmentCompat的newInstance（字符串键）{
        CURRENCYSYMBOL preferenceDialogFragmentCompat片段=新CURRENCYSYMBOL preferenceDialogFragmentCompat（）;
        束B =新包（1）;
        b.putString（密钥，密钥）;
        fragment.setArguments（二）;
        返回片段;
    }    @覆盖
    公共无效onDialogClosed（布尔positiveResult）{
        如果（positiveResult）{
            ...
            this.get preference（）setSummary（getSummary（））;
            ...
        }
    }
}

preferences.xml 

 ＆LT; android.support.v7 preference.List preference
    机器人：标题=@字符串/ preference_currency_symbol_title
    机器人：键=_ CURRENCY_SYMBOL_OPTIONS/＆GT;

请注意，你需要在你的主题添加以下的项目。

 ＆LT;项目名称=preferenceTheme＆GT; @风格/ preferenceThemeOverlay＆LT; /项目＆GT;

有关主题一些错误

然而，主题ING还不完善 - <一个href=\"http://stackoverflow.com/questions/32070670/$p$pferencefragmentcompat-requires-$p$pferencetheme-to-be-set\">$p$pferenceFragmentCompat需要设置 preferenceTheme

这是一个已知的问题：

有提出解决办法但是，解决办法只能将就对于V14及以上，不V7及以上的工作。

I had gone through How to use AppCompatPreferenceActivity?

I'm using appcompat-v7:23.0.1 and support-v4:23.0.1

Before using AppCompayPreferenceActivity, my PreferenceActivity looks the following without toolbar.

Without Toolbar

public class JStockPreferenceActivity extends PreferenceActivity {

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

        if (savedInstanceState == null) {
            // Display the fragment as the main content.
            JStockPreferenceFragment jStockPreferenceFragment = JStockPreferenceFragment.newInstance();
            jStockPreferenceFragment.setArguments(this.getIntent().getExtras());
            this.getFragmentManager().beginTransaction().replace(android.R.id.content, jStockPreferenceFragment).commit();
    }
}

After using AppCompayPreferenceActivity, with some Toolbar initialization code, the outcome looks as the following

The outcome isn't as expected :-

  1. The Toolbar overlaps with PreferenceFragment
  2. When touching on Toolbar, the event will be consumed by PreferenceFragment. This means, when you touch on toolbar, "Table header" preference will be touched instead.

With Toolbar

public class JStockPreferenceActivity extends AppCompatPreferenceActivity {
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);

        if (savedInstanceState == null) {
            // Display the fragment as the main content.
            JStockPreferenceFragment jStockPreferenceFragment = JStockPreferenceFragment.newInstance();
            jStockPreferenceFragment.setArguments(this.getIntent().getExtras());
            this.getFragmentManager().beginTransaction().replace(android.R.id.content, jStockPreferenceFragment).commit();
        }
        initToolbar();
    }

    private void initToolbar() {
        Toolbar toolbar;

        if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.ICE_CREAM_SANDWICH) {
            ViewGroup root = (ViewGroup) findViewById(android.R.id.list).getParent().getParent().getParent();
            toolbar = (Toolbar) LayoutInflater.from(this).inflate(R.layout.toolbar, root, false);
            root.addView(toolbar, 0);
        } else {
            toolbar = null;
        }

        setSupportActionBar(toolbar);
        getSupportActionBar().setDisplayHomeAsUpEnabled(true);
    }
}

My toolbar is

toolbar.xml

<android.support.v7.widget.Toolbar xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:id="@+id/toolbar"
    android:layout_height="wrap_content"
    android:layout_width="match_parent"
    android:minHeight="?attr/actionBarSize"
    android:background="?attr/colorPrimary"
    android:elevation="4dp"
    app:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar"
    app:popupTheme="@style/ThemeOverlay.AppCompat.Light" >

    <!-- android:elevation="4dp" is used due to http://www.google.com/design/spec/what-is-material/elevation-shadows.html#elevation-shadows-elevation-android- -->

</android.support.v7.widget.Toolbar>

I was wondering, what I had did wrong, which causes Toolbar overlapped with PreferenceFragment

解决方案

After some research and getting advice from Ian Lake, I manage to make it work by

  1. Change from AppCompatPreferenceActivity, to AppCompatActivity+PreferenceFragmentCompat

The following solution is workable for API 10 and above.

JStockPreferenceActivity.java

public class JStockPreferenceActivity extends AppCompatActivity {

    @SuppressWarnings("deprecation")
    @SuppressLint("NewApi")
    @Override
    public void onCreate(Bundle savedInstanceState) {            
        super.onCreate(savedInstanceState);

        setContentView(R.layout.jstock_preference_activity);

        initToolbar();

        if (savedInstanceState == null) {
            // Display the fragment as the main content.
            JStockPreferenceFragment jStockPreferenceFragment = JStockPreferenceFragment.newInstance();
            jStockPreferenceFragment.setArguments(this.getIntent().getExtras());
            this.getSupportFragmentManager().beginTransaction().replace(R.id.content, jStockPreferenceFragment).commit();
        }
    }

JStockPreferenceFragment.java

public class JStockPreferenceFragment extends PreferenceFragmentCompat implements SharedPreferences.OnSharedPreferenceChangeListener, PreferenceFragmentCompat.OnPreferenceDisplayDialogCallback {

    public static JStockPreferenceFragment newInstance() {
        return new JStockPreferenceFragment();
    }

However, by doing so, there is a shortcoming. Your previous custom DialogPreference no longer work. To solve this, you need to

  1. Replace DialogPreference with PreferenceDialogFragmentCompat.
  2. Replace DialogPreference in XML with ListPreference. (I'm not exactly sure whether ListPreference as replacement is a right way. It works anyway)
  3. Manually show PreferenceDialogFragmentCompat, in PreferenceFragmentCompat's onPreferenceDisplayDialog.

JStockPreferenceFragment.java

public class JStockPreferenceFragment extends PreferenceFragmentCompat implements SharedPreferences.OnSharedPreferenceChangeListener, PreferenceFragmentCompat.OnPreferenceDisplayDialogCallback {

    public static JStockPreferenceFragment newInstance() {
        return new JStockPreferenceFragment();
    }

    ////////////////////////////////////////////////////////////////////////////////////////////////
    // Showing custom dialog preference.
    private void showPreferenceDialogFragmentCompat(PreferenceDialogFragmentCompat preferenceDialogFragmentCompat) {
        preferenceDialogFragmentCompat.setTargetFragment(this, 0);
        preferenceDialogFragmentCompat.show(this.getFragmentManager(), "android.support.v7.preference.PreferenceFragment.DIALOG");
    }

    private void showCurrencySymbolPreferenceDialogFragmentCompat(Preference preference) {
        CurrencySymbolPreferenceDialogFragmentCompat currencySymbolPreferenceDialogFragmentCompat = CurrencySymbolPreferenceDialogFragmentCompat.newInstance(preference.getKey());
        showPreferenceDialogFragmentCompat(currencySymbolPreferenceDialogFragmentCompat);
    }

    // Showing custom dialog preference.
    ////////////////////////////////////////////////////////////////////////////////////////////////

    ////////////////////////////////////////////////////////////////////////////////////////////////
    // Callback when we are using custom dialog preference.
    @Override
    public Fragment getCallbackFragment() {
        return this;
    }

    @Override
    public boolean onPreferenceDisplayDialog(PreferenceFragmentCompat preferenceFragmentCompat, Preference preference) {
        final String key = preference.getKey();

        if (_CURRENCY_SYMBOL_OPTIONS.equals(key)) {
            showCurrencySymbolPreferenceDialogFragmentCompat(preference);
            return true;
        }

        return false;
    }
    // Callback when we are using custom dialog preference.
    ////////////////////////////////////////////////////////////////////////////////////////////////

CurrencySymbolPreferenceDialogFragmentCompat.java

public class CurrencySymbolPreferenceDialogFragmentCompat extends PreferenceDialogFragmentCompat {

    public CurrencySymbolPreferenceDialogFragmentCompat() {
    }

    public static CurrencySymbolPreferenceDialogFragmentCompat newInstance(String key) {
        CurrencySymbolPreferenceDialogFragmentCompat fragment = new CurrencySymbolPreferenceDialogFragmentCompat();
        Bundle b = new Bundle(1);
        b.putString("key", key);
        fragment.setArguments(b);
        return fragment;
    }

    @Override
    public void onDialogClosed(boolean positiveResult) {
        if (positiveResult) {
            ...
            this.getPreference().setSummary(getSummary());
            ...
        }
    } 
}

preferences.xml

<android.support.v7.preference.ListPreference
    android:title="@string/preference_currency_symbol_title"
    android:key="_CURRENCY_SYMBOL_OPTIONS" />

Please note that, you need to add the following item in your theme.

<item name="preferenceTheme">@style/PreferenceThemeOverlay</item>

Some bugs regarding theme

However, the theme-ing isn't perfect yet - PreferenceFragmentCompat requires preferenceTheme to be set

This is a known issues : https://code.google.com/p/android/issues/detail?id=183376

There is proposed workaround http://stackoverflow.com/a/32108439/72437 But, the workaround will only work for v14 and above, not v7 and above.

这篇关于通过应用程序兼容性preferenceActivity添加工具栏preferenceActivity导致重叠的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！

09-16 04:57
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