Java OnDrawerItemClickListener不工作。
我一直在用工具栏制作这个导航抽屉。现在我被点击监听器卡住了。当我点击抽屉里的物品时,它什么也不做。我的班级是碎片。这是代码。 包com.vivek.ssJava OnDrawerItemClickListener不工作。,java,android,fragment,navigation-drawer,Java,Android,Fragment,Navigation Drawer,我一直在用工具栏制作这个导航抽屉。现在我被点击监听器卡住了。当我点击抽屉里的物品时,它什么也不做。我的班级是碎片。这是代码。 包com.vivek.ss import android.app.FragmentManager; import android.app.FragmentTransaction; import android.support.v7.app.ActionBarActivity; import android.os.Bundle; import android.support
import android.app.FragmentManager;
import android.app.FragmentTransaction;
import android.support.v7.app.ActionBarActivity;
import android.os.Bundle;
import android.support.v7.widget.Toolbar;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.AdapterView;
import com.mikepenz.materialdrawer.Drawer;
import com.mikepenz.materialdrawer.model.PrimaryDrawerItem;
import com.mikepenz.materialdrawer.model.SecondaryDrawerItem;
import com.mikepenz.materialdrawer.model.interfaces.IDrawerItem;
public class MainActivity extends ActionBarActivity {
private BaseFragment mBaseFragment;
private int mSelectedFragment;
private static String BUNDLE_SELECTEDFRAGMENT = "Selected";
private static final int CASE_START = 0;
private static final int CASE_VIEW = 1;
private Drawer.Result result = null;
@Override
protected void onSaveInstanceState(Bundle outState) {
super.onSaveInstanceState(outState);
outState.putInt(BUNDLE_SELECTEDFRAGMENT , mSelectedFragment);
}
@Override
protected void onCreate(final Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
final Toolbar toolbar;
toolbar = (Toolbar)findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
getSupportActionBar().setDisplayHomeAsUpEnabled(true);
if (savedInstanceState != null) {
mSelectedFragment = savedInstanceState.getInt(BUNDLE_SELECTEDFRAGMENT);
FragmentManager fragmentManager = getFragmentManager();
FragmentTransaction fragmentTransaction = fragmentManager.beginTransaction();
if (fragmentManager.findFragmentById(R.id.frame_container) == null)
mBaseFragment = selectFragment(mSelectedFragment);
}
result = new Drawer().withActivity(this).withToolbar(toolbar).withActionBarDrawerToggle(true).withHeader(R.layout.header)
.addDrawerItems(new PrimaryDrawerItem().withName(R.string.primaryfirst)
, new PrimaryDrawerItem().withName(R.string.primarysecond),
new SecondaryDrawerItem().withName(R.string.secondaryfirst)
).withOnDrawerItemClickListener(new Drawer.OnDrawerItemClickListener() {
@Override
public void onItemClick(AdapterView<?> adapterView, View view, int position, long id, IDrawerItem iDrawerItem) {
if (iDrawerItem != null) {
if (iDrawerItem instanceof PrimaryDrawerItem) {
toolbar.setTitle(((PrimaryDrawerItem) iDrawerItem).getNameRes());
mBaseFragment = selectFragment(position);
mSelectedFragment = position;
}
}
}
}).build();
}
private BaseFragment selectFragment(int position) {
BaseFragment baseFragment = null;
switch (position) {
case CASE_START:
baseFragment = new TestFragment();
break;
case CASE_VIEW:
baseFragment = new TestFragment();
break;
}
return baseFragment;
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.menu_main, menu);
return true;
}
@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) {
return true;
}
return super.onOptionsItemSelected(item);
}
}
导入android.app.FragmentManager;
导入android.app.FragmentTransaction;
导入android.support.v7.app.ActionBarActivity;
导入android.os.Bundle;
导入android.support.v7.widget.Toolbar;
导入android.view.Menu;
导入android.view.MenuItem;
导入android.view.view;
导入android.widget.AdapterView;
进口com.mikepenz.materialdrawer.Drawer;
导入com.mikepenz.materialdrawer.model.PrimaryDrawerItem;
导入com.mikepenz.materialdrawer.model.SecondaryDrawerItem;
导入com.mikepenz.materialdrawer.model.interfaces.idrawritem;
公共类MainActivity扩展了ActionBarActivity{
私有BaseFragment和sefragment;
私有int mSelectedFragment;
私有静态字符串束\u SELECTEDFRAGMENT=“Selected”;
私有静态最终int CASE_START=0;
私有静态final int CASE_VIEW=1;
私有抽屉。结果=null;
@凌驾
SaveInstanceState上受保护的无效(束超出状态){
super.onSaveInstanceState(超出状态);
outState.putInt(BUNDLE\u SELECTEDFRAGMENT,mSelectedFragment);
}
@凌驾
创建时受保护的void(最终捆绑包savedInstanceState){
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
最终工具栏;
toolbar=(toolbar)findviewbyd(R.id.toolbar);
设置支持操作栏(工具栏);
getSupportActionBar().setDisplayHomeAsUpEnabled(true);
如果(savedInstanceState!=null){
mSelectedFragment=savedInstanceState.getInt(BUNDLE\u SELECTEDFRAGMENT);
FragmentManager FragmentManager=getFragmentManager();
FragmentTransaction FragmentTransaction=fragmentManager.beginTransaction();
if(fragmentManager.findFragmentById(R.id.frame_容器)==null)
mBaseFragment=selectFragment(mSelectedFragment);
}
结果=新建抽屉().withActivity(this).withToolbar(toolbar).withActionBarDrawerToggle(true).withHeader(R.layout.header)
.addDrawerItems(新的PrimaryDrawerItem().withName(R.string.primaryfirst)
,新的PrimaryDrawerItem().withName(R.string.primarysecond),
新的SecondaryDrawerItem().withName(R.string.secondaryfirst)
).withOnDrawerItemClickListener(新抽屉.OnDrawerItemClickListener(){
@凌驾
公共无效onItemClick(AdapterView AdapterView、视图视图、整型位置、长id、IDrawritem IDrawritem){
if(idrawritem!=null){
if(主抽屉的IDraWrite实例){
setTitle(((primarydrawritem)idrawritem.getNameRes());
mBaseFragment=selectFragment(位置);
mSelectedFragment=位置;
}
}
}
}).build();
}
专用BaseFragment selectFragment(int位置){
BaseFragment BaseFragment=null;
开关(位置){
案例开始:
baseFragment=新的TestFragment();
打破
案例视图:
baseFragment=新的TestFragment();
打破
}
返回碱基片段;
}
@凌驾
公共布尔onCreateOptions菜单(菜单){
//为菜单充气;这会将项目添加到操作栏(如果存在)。
getMenuInflater().充气(右菜单菜单菜单主菜单);
返回true;
}
@凌驾
公共布尔值onOptionsItemSelected(菜单项项){
//处理操作栏项目单击此处。操作栏将
//自动处理Home/Up按钮上的点击,只要
//在AndroidManifest.xml中指定父活动时。
int id=item.getItemId();
//noinspection SimplifiableIf语句
if(id==R.id.action\u设置){
返回true;
}
返回super.onOptionsItemSelected(项目);
}
}
单击它相应地更改操作栏标题的项目。
但我的碎片不会开始
要在onItemClick上显示碎片,需要使用碎片事务的replace
或add
方法。从onItemClick
方法开始片段:
FragmentManager fragmentManager = getFragmentManager();
FragmentTransaction fragmentTransaction = fragmentManager.beginTransaction();
fragmentTransaction.replace(R.id.frame_container, mBaseFragment);
fragmentTransaction.addToBackStack(null);
// Commit the transaction
fragmentTransaction.commit();
onItemClick
方法正在执行吗?是。单击它相应地更改操作栏标题的项目。但是我的片段不会开始:(它工作得很好。现在当我单击开始捕获时,我有了cardview列表。)您好,我是这个伟大网站的新手。但是我经常在这个网站上查看它。我唯一没有发布的东西。谢谢你提醒我。我现在已经做了。