这是我的主要活动文件
`
// DRAW
for(var i = 0; i < pieces.length; i++){
// HTML
var el = "<div class=\"image piece"+(pieces[i])+"\"><p class=\"helpNum\"></p></div>";
$(".grid").append(el);
$(".piece"+(h*v)).addClass("voidBlock");
}
// CSS div positioning
var j = 0;
for(var pY = 0; pY > -600; pY -= finalHeight){
for(var pX = 0; pX > -800; pX -= finalWidth){
$(".piece"+pieces[j]).css({left: pX, top: pY});
j++;
}
}
`
main activity.java
`package piestudio.zine;
<android.support.v4.widget.
android:id="@+id/drawer_layout"
android:layout_width="match_parent"
android:layout_height="match_parent">
<FrameLayout android:layout_width="wrap_content"
android:layout_height="match_parent">
android:layout_width="match_parent"
android:layout_height="match_parent"
android:paddingBottom="@dimen/activity_vertical_margin"
android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin
<android.support.v7.widget.Toolbar
android:id="@+id/toolbar"
android:layout_width="match_parent"
android:layout_height="wrap_content"
app:popupTheme="@style/ThemeOverlay.AppCompat.Light"
app:theme="@style/Theme.AppCompat.Light.DarkActionBar"/>
</FrameLayout>
<fragment
android:id="@+id/fragment.navigation.drawer"
android:name="piestudio.zine.NavigationDrawerFragment"
android:layout_width="280dp"
android:layout_height="match_parent"
android:layout_gravity="start"
app:layout="@layout/fragment_navigation_drawer"
tools:layout="@layout/fragment_navigation_drawer"/>
</android.support.v4.widget.>
</LinearLayout>
`
导航抽屉活动
`package piestudio.zine;
import android.os.Bundle;
import android.support.v4.widget.DrawerLayout;
import android.support.v7.app.AppCompatActivity;
import android.view.Menu;
public class MainActivity extends AppCompatActivity{
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.drawer,menu);
return true;
}
public android.support.v7.widget.Toolbar toolbar;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main_appbar);
toolbar = (android.support.v7.widget.Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
getSupportActionBar().setDisplayShowHomeEnabled(true);
NavigationDrawerFragment drawerFragment = (NavigationDrawerFragment)
getSupportFragmentManager().findFragmentById(R.id.fragment_navigation_drawer);
drawerFragment.setUP(R.id.fragment_navigation_drawer,(DrawerLayout) findViewById(R.id.drawer_layout),toolbar);}
}
`
错误的logcat
import android.content.Context;
import android.content.SharedPreferences;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.support.v4.widget.DrawerLayout;
import android.support.v7.app.ActionBarDrawerToggle;
import android.support.v7.widget.Toolbar;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
/**
* A simple {@link Fragment} subclass.
*/
public class NavigationDrawerFragment extends Fragment {
public static final String PREF_FILE_NAME = "testpref";
public static final String KEY_USER_LEARNED_DRAWER="user_learned_drawer";
private ActionBarDrawerToggle mDrawerToggle;
private DrawerLayout mDrawerLayout;
private View containerView;
private boolean mUserLearnedDrawer;
private boolean mFromSavedInstanceState;
public NavigationDrawerFragment() {
// Required empty public constructor
}
@Override
public void onCreate( Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
mUserLearnedDrawer=Boolean.valueOf(readFromPreferences(getActivity(),KEY_USER_LEARNED_DRAWER,"false"));
if(savedInstanceState!=null){
mFromSavedInstanceState=true;
}
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
// Inflate the layout for this fragment
return inflater.inflate(R.layout.fragment_navigation_drawer, container, false);
}
public void setUP(int fragmentId, DrawerLayout drawerLayout, final Toolbar toolbar) {
containerView=getActivity().findViewById(fragmentId);
mDrawerLayout = drawerLayout;
mDrawerToggle = new ActionBarDrawerToggle(getActivity(), drawerLayout, toolbar, R.string.drawer_open, R.string.drawer_close) {
@Override
public void onDrawerOpened(View drawerView) {
super.onDrawerOpened(drawerView);
if (mUserLearnedDrawer){
mUserLearnedDrawer=true;
saveToPreferences(getActivity(),KEY_USER_LEARNED_DRAWER,mUserLearnedDrawer+"");
}
getActivity().invalidateOptionsMenu();
}
@Override
public void onDrawerClosed(View drawerView) {
super.onDrawerClosed(drawerView);
getActivity().invalidateOptionsMenu();
}
@Override
public void onDrawerSlide(View drawerView, float slideOffset) {
if (slideOffset<0.8){
toolbar.setAlpha(1-slideOffset);}
}
};
if (!mUserLearnedDrawer&&!mFromSavedInstanceState){
mDrawerLayout.openDrawer(containerView);
}
mDrawerLayout.setDrawerListener(mDrawerToggle);
mDrawerLayout.post(new Runnable() {
@Override
public void run() {
mDrawerToggle.syncState();
}
});
}
public static void saveToPreferences(Context context, String preferenceName, String preferenceValue) {
SharedPreferences sharedPreferences = context.getSharedPreferences(PREF_FILE_NAME, Context.MODE_PRIVATE);
SharedPreferences.Editor editor = sharedPreferences.edit();
editor.putString(preferenceName, preferenceValue);
editor.apply();
}
public static String readFromPreferences(Context context, String preferenceName, String defaultValue) {
SharedPreferences sharedPreferences = context.getSharedPreferences(PREF_FILE_NAME, Context.MODE_PRIVATE);
return sharedPreferences.getString(preferenceName,defaultValue);
}
}
我的应用程序没有启动，每次我在模拟器中运行时都会强制关闭。请帮帮我。我正在做这一切以获取导航抽屉上的项目（列表），你也可以指出代码中的任何错误:)。虽然logcat显示错误## -Didn找不到类＆＃34; android.support.v4.widget。 ##我无法解决此错误
答案 0 :(得分：1)
添加compile＆＃39; com.android.support：support-v4：23.2.0＆＃39; build.gradle（Module：app）文件中依赖于block的行。
答案 1 :(得分：0)
正如我在您的代码中看到的那样，您正在实施NavigationDrawer并且您会错过以下内容。
此处显示错误<android.support.v4.widget.
将此<android.support.v4.widget.更改为此<android.support.v4.widget.NavigationDrawer
并将</android.support.v4.widget.>更改为此</android.support.v4.widget.NavigationDrawer>