小编Kie*_*ron的帖子

我一直在尝试使用RecyclerView实现一个CollapsingToolbar,使用少量的指导:http://android-developers.blogspot.co.uk/2015/05/android-design-support-library.html和项目这里:https://github.com/chrisbanes/cheesesquare,我目前有以下布局:

<android.support.design.widget.CoordinatorLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:id="@+id/main_content"
android:layout_width="match_parent"
android:layout_height="match_parent">

<android.support.design.widget.AppBarLayout
    android:id="@+id/appbar"
    android:layout_width="match_parent"
    android:layout_height="@dimen/detail_backdrop_height"
    android:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar"
    android:fitsSystemWindows="true">

    <android.support.design.widget.CollapsingToolbarLayout
        android:id="@+id/collapsing_toolbar"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        app:layout_scrollFlags="scroll|exitUntilCollapsed"
        android:fitsSystemWindows="true"
        app:theme="@style/Toolbar"
        app:contentScrim="@color/primary"
        app:expandedTitleMarginStart="48dp"
        app:expandedTitleMarginEnd="64dp">

        <ImageView
            android:id="@+id/backdrop"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:scaleType="centerCrop"
            android:fitsSystemWindows="true"
            app:layout_collapseMode="parallax" />

        <android.support.v7.widget.Toolbar
            android:id="@+id/toolbar"
            app:theme="@style/Toolbar"
            android:layout_width="match_parent"
            android:layout_height="?attr/actionBarSize"
            app:popupTheme="@style/ThemeOverlay.AppCompat.Light"
            app:layout_collapseMode="pin" />

    </android.support.design.widget.CollapsingToolbarLayout>

</android.support.design.widget.AppBarLayout>

<android.support.v7.widget.RecyclerView
    android:id="@+id/recyclerView"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    app:layout_behavior="@string/appbar_scrolling_view_behavior" />

<android.support.design.widget.FloatingActionButton
    android:layout_height="wrap_content"
    android:layout_width="wrap_content"
    app:layout_anchor="@id/appbar"
    app:layout_anchorGravity="bottom|right|end"
    android:src="@drawable/ic_directions"
    android:layout_margin="@dimen/fab_margin"
    android:clickable="true"/>

 </android.support.design.widget.CoordinatorLayout>

来源如下:

    setContentView(R.layout.activity_details_image);
    final Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
    setSupportActionBar(toolbar);
    getSupportActionBar().setDisplayHomeAsUpEnabled(true);
    loadImage();
    CollapsingToolbarLayout collapsingToolbar =
            (CollapsingToolbarLayout) findViewById(R.id.collapsing_toolbar); …

我正在尝试创建一个对话框,类似于Nova Launcher中的对话框(对话框的右上角):

显示应用程序的设置.我无法显示,我当前的对话框只显示一个正常的标题栏:当前代码:

自定义对话框文件:(add_dialog_custom_title)

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="horizontal"
    android:paddingLeft="15.0dip"
    android:paddingRight="15.0dip"
    android:layout_width="fill_parent"
    android:layout_height="wrap_content">

    <TextView
        android:textAppearance="?android:textAppearanceLarge"
        android:gravity="center_vertical"
        android:layout_width="0.0dip"
        android:layout_height="wrap_content"
        android:minHeight="?android:listPreferredItemHeight"
        android:text="@string/menu_item_add_item"
        android:drawablePadding="14.0dip"
        android:layout_weight="1.0" />
    <ImageView
        android:layout_gravity="center"
        android:id="@id/settings_button"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:src="@android:drawable/ic_menu_preferences"
        android:layout_weight="0.0" />
</LinearLayout>

NfcUnlockActivity:

package com.quinny898.gcse.doorcontrol;
import android.app.*;
import android.widget.*;
import android.content.*;
import android.text.*;
import android.os.*;
import android.view.*;

public class NfcUnlockActivity extends Activity 
{
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        AlertDialog.Builder builder;
        AlertDialog alertDialog;
    Context mContext = getApplicationContext();
    Dialog dialog = new Dialog (mContext);
    LayoutInflater inflater = (LayoutInflater) mContext.getSystemService(LAYOUT_INFLATER_SERVICE); …

我的Android游戏GeoGuess（https://play.google.com/store/apps/details?id=uk.co.quinny898.game.geoguess）的设备崩溃导致设备崩溃

全部都是Java，所以我不明白为什么会发生这种崩溃。该崩溃发生在34个唯一的设备上（并且还在不断增加），并且确实给用户带来了问题（它似乎正在启动中）

堆栈跟踪如下：

*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
Build fingerprint: 'samsung/serranoltexx/serranolte:4.4.2/KOT49H/I9195XXUCNH5:user/release-keys'
Revision: '5'
pid: 23657, tid: 23704, name: AsyncTask #1 >>> uk.co.quinny898.game.geoguess <<<
signal 16 (SIGSTKFLT), code -6 (SI_TKILL), fault addr --------
r0 42049ee8 r1 00000000 r2 663c69c3 r3 00000000
r4 622a880e r5 64489e8c r6 6447ca98 r7 000020f4
r8 417bbf80 r9 622a8806 sl 00000000 fp 42b5f278
ip 65c49fec sp 64861c40 lr 00000000 pc 663c69d8 cpsr 600d0030
d0 …