当我运行我的应用程序时，只是出现此错误：
错误：（123,45）java：不兼容的类型： com.special.ResideMenuDemo.NoBoringFeragment无法转换为 android.app.Activity
，错误行为：
CustomList adapter = new CustomList(this, name, family, metrics);
我只是不明白，你知道我只是将我的类从活动更改为片段并从片段扩展，如果这可以帮助你。 并且当我想在我的应用程序的这一行中获取actionBarSize时，我的IDE向我显示此错误：
错误：（223,9）java：找不到符号 符号：方法getTheme（） location：class com.special.ResideMenuDemo.NoBoringFeragment 你可以帮我搞清楚吗？
编辑： 我只是补充一下，你的来源，也许是明确的事情：
我的java代码：
package com.special.ResideMenuDemo;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.app.ActionBar;
import android.app.Activity;
import android.content.Context;
import android.content.res.Resources;
import android.content.res.TypedArray;
import android.graphics.Color;
import android.graphics.RectF;
import android.os.Bundle;
import android.text.Spannable;
import android.text.SpannableString;
import android.text.style.ForegroundColorSpan;
import android.text.style.TypefaceSpan;
import android.util.DisplayMetrics;
import android.util.TypedValue;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.view.animation.AccelerateDecelerateInterpolator;
import android.view.animation.Animation;
import android.view.animation.AnimationUtils;
import android.widget.AbsListView;
import android.widget.ArrayAdapter;
import android.widget.ImageView;
import android.widget.ListView;
import android.widget.TextView;
import com.flavienlaurent.notboringactionbar.*;
import com.flavienlaurent.notboringactionbar.NoBoringActionBarActivity;
import com.flavienlaurent.notboringactionbar.AlphaForegroundColorSpan;
import com.flavienlaurent.notboringactionbar.KenBurnsView;
import com.flavienlaurent.notboringactionbar.ParallaxImageView;
/**
* Created by milad_000 on 31/01/2015.
*/
public class NoBoringFeragment extends Fragment {
////////////////////////////////-----------------------------------------------------------------------------------------------------------------------------------
private DisplayMetrics metrics;
String[] name = {
" کرمی فرماندار شهرستان سرخه با اشاره به تهاجم فرهنگی دشمنان اسلام و تلاش برای جداسازی جوانان از آرمانهای انقلاب افزود: بایدسازو کاری دیده شود تا اجلاسیه شهدای امسال به سمت جوان محوری هدایت شود ،چراکه بهترین کار برای پاسداشت ارزشهای انقلاب و دفاع مقدس در زمان",
" حمیدرضا",
" عباسعلی"
};
String[] family = {
" ",
" اسفنجاني",
" الله دادی"
};
private static final String TAG = "NoBoringActionBarActivity";
private int mActionBarTitleColor;
private int mActionBarHeight;
private int mHeaderHeight;
private int mMinHeaderTranslation;
private ListView mListView;
private KenBurnsView mHeaderPicture;
private ImageView mHeaderLogo;
private View mHeader;
private View mPlaceHolderView;
private AccelerateDecelerateInterpolator mSmoothInterpolator;
private RectF mRect1 = new RectF();
private RectF mRect2 = new RectF();
private AlphaForegroundColorSpan mAlphaForegroundColorSpan;
private SpannableString mSpannableString;
private TypedValue mTypedValue = new TypedValue();
////////////////////////////////*********************************************************************************
private View parentView;
////////////////////////////////*********************************************************************************
////////////////////////////////-----------------------------------------------------------------------------------------------------------------------------------
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
parentView= inflater.inflate(com.flavienlaurent.notboringactionbar.R.layout.activity_noboringactionbar, container, false);
mSmoothInterpolator = new AccelerateDecelerateInterpolator();
mHeaderHeight = getResources().getDimensionPixelSize(com.flavienlaurent.notboringactionbar.R.dimen.header_height);
mMinHeaderTranslation = -mHeaderHeight + getActionBarHeight();
// setContentView(com.flavienlaurent.notboringactionbar.R.layout.activity_noboringactionbar);
mListView = (ListView) parentView.findViewById(com.flavienlaurent.notboringactionbar.R.id.listview);
mHeader = parentView.findViewById(com.flavienlaurent.notboringactionbar.R.id.header);
mHeaderPicture = (KenBurnsView) getView().findViewById(com.flavienlaurent.notboringactionbar.R.id.header_picture);
mHeaderPicture.setResourceIds(com.flavienlaurent.notboringactionbar.R.drawable.picture0, com.flavienlaurent.notboringactionbar.R.drawable.picture1);
mHeaderLogo = (ImageView) parentView.findViewById(com.flavienlaurent.notboringactionbar.R.id.header_logo);
mActionBarTitleColor = getResources().getColor(com.flavienlaurent.notboringactionbar.R.color.actionbar_title_color);
mSpannableString = new SpannableString(getString(com.flavienlaurent.notboringactionbar.R.string.noboringactionbar_title));
mAlphaForegroundColorSpan = new AlphaForegroundColorSpan(mActionBarTitleColor);
setupActionBar();
// setupListView();
return parentView;
}
private void setupListView() {
metrics = new DisplayMetrics();
getActivity().getWindowManager().getDefaultDisplay().getMetrics(metrics);
CustomList adapter = new CustomList(this, name, family, metrics);
mListView.setDivider(null);
mListView.setDividerHeight(0);
mPlaceHolderView = getActivity().getLayoutInflater().inflate(com.flavienlaurent.notboringactionbar.R.layout.view_header_placeholder, mListView, false);
mListView.addHeaderView(mPlaceHolderView);
mListView.setAdapter(adapter);
mListView.setOnScrollListener(new AbsListView.OnScrollListener() {
@Override
public void onScrollStateChanged(AbsListView view, int scrollState) {
}
@Override
public void onScroll(AbsListView view, int firstVisibleItem, int visibleItemCount, int totalItemCount) {
int scrollY = getScrollY();
//sticky actionbar
mHeader.setTranslationY(Math.max(-scrollY, mMinHeaderTranslation));
//header_logo --> actionbar icon
float ratio = clamp(mHeader.getTranslationY() / mMinHeaderTranslation, 0.0f, 1.0f);
interpolate(mHeaderLogo, getActionBarIconView(), mSmoothInterpolator.getInterpolation(ratio));
//actionbar title alpha
//getActionBarTitleView().setAlpha(clamp(5.0F * ratio - 4.0F, 0.0F, 1.0F));
//---------------------------------
//better way thanks to @cyrilmottier
setTitleAlpha(clamp(5.0F * ratio - 4.0F, 0.0F, 1.0F));
}
});
}
private void setTitleAlpha(float alpha) {
mAlphaForegroundColorSpan.setAlpha(alpha);
mSpannableString.setSpan(mAlphaForegroundColorSpan, 0, mSpannableString.length(), Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
getActivity().getActionBar().setTitle(mSpannableString);
}
public static float clamp(float value, float min, float max) {
return Math.max(min,Math.min(value, max));
}
private void interpolate(View view1, View view2, float interpolation) {
getOnScreenRect(mRect1, view1);
getOnScreenRect(mRect2, view2);
float scaleX = 1.0F + interpolation * (mRect2.width() / mRect1.width() - 1.0F);
float scaleY = 1.0F + interpolation * (mRect2.height() / mRect1.height() - 1.0F);
float translationX = 0.5F * (interpolation * (mRect2.left + mRect2.right - mRect1.left - mRect1.right));
float translationY = 0.5F * (interpolation * (mRect2.top + mRect2.bottom - mRect1.top - mRect1.bottom));
view1.setTranslationX(translationX);
view1.setTranslationY(translationY - mHeader.getTranslationY());
view1.setScaleX(scaleX);
view1.setScaleY(scaleY);
}
private RectF getOnScreenRect(RectF rect, View view) {
rect.set(view.getLeft(), view.getTop(), view.getRight(), view.getBottom());
return rect;
}
public int getScrollY() {
View c = mListView.getChildAt(0);
if (c == null) {
return 0;
}
int firstVisiblePosition = mListView.getFirstVisiblePosition();
int top = c.getTop();
int headerHeight = 0;
if (firstVisiblePosition >= 1) {
headerHeight = mPlaceHolderView.getHeight();
}
return -top + firstVisiblePosition * c.getHeight() + headerHeight;
}
private void setupActionBar() {
ActionBar actionBar = getActivity().getActionBar();
actionBar.setIcon(com.flavienlaurent.notboringactionbar.R.drawable.ic_transparent);
//getActionBarTitleView().setAlpha(0f);
}
private ImageView getActionBarIconView() {
return (ImageView) parentView.findViewById(android.R.id.home);
}
/*private TextView getActionBarTitleView() {
int id = Resources.getSystem().getIdentifier("action_bar_title", "id", "android");
return (TextView) findViewById(id);
}*/
public int getActionBarHeight() {
if (mActionBarHeight != 0) {
return mActionBarHeight;
}
getTheme().resolveAttribute(android.R.attr.actionBarSize, mTypedValue, true);
mActionBarHeight = TypedValue.complexToDimensionPixelSize(mTypedValue.data, getResources().getDisplayMetrics());
return mActionBarHeight;
}
public class CustomList extends ArrayAdapter<String> {
private DisplayMetrics metrics_;
private final Activity context;
private final String[] name;
private final String[] family;
public CustomList(Activity context,String[] name,String[] family , DisplayMetrics metrics ) {
super(context, com.flavienlaurent.notboringactionbar.R.layout.viewlisting, name);
this.context = context;
this.name = name;
this.family = family;
this.metrics_ = metrics;
}
@Override
public View getView(int position, View view, ViewGroup parent) {
LayoutInflater inflater = context.getLayoutInflater();
View rowView= inflater.inflate(com.flavienlaurent.notboringactionbar.R.layout.viewlisting, null, true);
TextView nameTxt = (TextView) rowView.findViewById(com.flavienlaurent.notboringactionbar.R.id.name);
TextView familyTxt = (TextView) rowView.findViewById(com.flavienlaurent.notboringactionbar.R.id.family);
nameTxt.setText(name[position]);
familyTxt.setText(family[position]);
Animation animation = null;
animation = AnimationUtils.loadAnimation(context, com.flavienlaurent.notboringactionbar.R.anim.push_left_in);
rowView.startAnimation(animation);
return rowView;
}
}
}
我的xml：
<?xml version="1.0" encoding="utf-8"?>
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".NoBoringActionBarActivity">
<ListView
android:id="@+id/listview"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="@android:color/white" />
<FrameLayout
android:id="@+id/header"
android:layout_width="match_parent"
android:layout_height="@dimen/header_height">
<com.flavienlaurent.notboringactionbar.KenBurnsView
android:id="@+id/header_picture"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:src="@drawable/picture0" />
<ImageView
android:id="@+id/header_logo"
android:layout_width="@dimen/header_logo_size"
android:layout_height="@dimen/header_logo_size"
android:layout_gravity="center"
android:src="@drawable/ic_header_logo" />
</FrameLayout>
</FrameLayout>
答案 0 :(得分：0)
因为适配器的构造函数是
public CustomList(Activity context,String[] name,String[] family , DisplayMetrics metrics)
你应该替换
CustomList adapter = new CustomList(this, name, family, metrics);
用这个
CustomList adapter = new CustomList(getActivity().getApplicationContext(), name, family, metrics);
原因是因为this中的CustomList adapter = new CustomList(this, name, family, metrics);引用了Fragment，但正确的是Activity。
对于第二个错误，您应该尝试替换
getTheme().resolveAttribute(android.R.attr.actionBarSize, mTypedValue, true);
带
getActivity().getTheme().resolveAttribute(android.R.attr.actionBarSize, mTypedValue, true);。
<强>更新
您的自定义适配器扩展了ArrayAdapter类，因此我建议您更改
public CustomList(Activity context,String[] name,String[] family , DisplayMetrics metrics)
到
public CustomList(Context context,String[] name,String[] family , DisplayMetrics metrics)