当我打开导航抽屉并滚动浏览不同的选项时(我们称之为A,B和C)。当我点击A,B或C时,Fragment
布局无法打开,我卡在我的Activity_main
版面上。
之前我将content_main
和Activity_main
作为两个单独的XML文件,我被告知我必须将content_main
代码放入Activity_main
(其中我做了,这删除了no view found for id
错误。
这是我的Activity_main
(现在):
<?xml version="1.0" encoding="utf-8"?>
<android.support.v4.widget.DrawerLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:id="@+id/drawer_layout"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="true"
tools:openDrawer="start">
<include
layout="@layout/app_bar_main"
android:layout_width="match_parent"
android:layout_height="match_parent" />
<android.support.design.widget.NavigationView
android:id="@+id/nav_view"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:layout_gravity="start"
android:fitsSystemWindows="true"
app:headerLayout="@layout/nav_header_main"
app:menu="@menu/activity_main_drawer" />
<LinearLayout
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="match_parent">
<ImageView
android:layout_width="match_parent"
android:layout_height="wrap_content"
app:srcCompat="@drawable/e"
android:id="@+id/imageView7"
android:layout_marginTop="96dp"
android:layout_alignParentTop="true"
android:layout_centerHorizontal="true"
android:contentDescription=""/>
<ImageView
android:layout_width="match_parent"
android:layout_height="wrap_content"
app:srcCompat="@drawable/welcome"
android:id="@+id/imageView2"
android:layout_alignParentTop="true"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true"/>
</LinearLayout>
非常感谢帮助! 如果还有其他我可以提供的,请告诉我!
这是java代码:
package mcshreker.pocketmath;
import android.app.FragmentTransaction;
import android.os.Build;
import android.os.Bundle;
import android.support.annotation.IdRes;
import android.support.annotation.Nullable;
import android.support.annotation.RequiresApi;
import android.support.v4.app.FragmentManager;
import android.support.design.widget.NavigationView;
import android.support.v4.view.GravityCompat;
import android.support.v4.widget.DrawerLayout;
import android.support.v7.app.ActionBarDrawerToggle;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.Toolbar;
import android.text.Layout;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.ViewGroup;
import android.widget.Button;
public class MainActivity extends AppCompatActivity
implements NavigationView.OnNavigationItemSelectedListener {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
ActionBarDrawerToggle toggle = new ActionBarDrawerToggle(
this, drawer, toolbar, R.string.navigation_drawer_open, R.string.navigation_drawer_close);
drawer.setDrawerListener(toggle);
toggle.syncState();
NavigationView navigationView = (NavigationView) findViewById(R.id.nav_view);
navigationView.setNavigationItemSelectedListener(this);
}
@Override
public void onBackPressed() {
DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
if (drawer.isDrawerOpen(GravityCompat.START)) {
drawer.closeDrawer(GravityCompat.START);
} else {
super.onBackPressed();
}
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.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();
return super.onOptionsItemSelected(item);
}
@RequiresApi(api = Build.VERSION_CODES.M)
@SuppressWarnings("StatementWithEmptyBody")
@Override
public boolean onNavigationItemSelected(MenuItem item) {
// Handle navigation view item clicks here.
int id = item.getItemId();
FragmentManager fragmentManager = getSupportFragmentManager();
if (id == R.id.nav_first_layout) {
fragmentManager.beginTransaction().replace
(R.id.drawer_layout, new firstFragment()).commit();
// Handle the camera action
/* } else if (id == R.id.nav_share) {
} else if (id == R.id.nav_send) {*/
} else if (id == R.id.nav_second_layout) {
fragmentManager.beginTransaction().replace
(R.id.drawer_layout, new secondFragment()).commit();
} else if (id == R.id.nav_third_layout) {
fragmentManager.beginTransaction().replace
(R.id.drawer_layout, new thirdFragment()).commit();
} else if (id == R.id.nav_fourth_layout) {
fragmentManager.beginTransaction().replace
(R.id.drawer_layout, new fourthFragment()).commit();
} else if (id == R.id.nav_fifth_layout) {
fragmentManager.beginTransaction().replace
(R.id.drawer_layout, new fifthFragment()).commit();
} else if (id == R.id.nav_sixth_layout) {
fragmentManager.beginTransaction().replace
(R.id.drawer_layout, new sixthFragment()).commit();
} else if (id == R.id.nav_seventh_layout) {
fragmentManager.beginTransaction().replace
(R.id.drawer_layout, new seventhFragment()).commit();
} else if (id == R.id.nav_eighth_layout) {
fragmentManager.beginTransaction().replace
(R.id.drawer_layout, new eighthFragment()).commit();
} else if (id == R.id.nav_ninth_layout) {
fragmentManager.beginTransaction().replace
(R.id.drawer_layout, new ninthFragment()).commit();
}
DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
drawer.closeDrawer(GravityCompat.START);
return true;
}
}
答案 0 :(得分:0)
我认为你不应该替换主要的活动布局。 如果您的主活动布局中的视图(如框架布局)与其父宽度和高度匹配,则会更好。