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Почему мое приложение падает во время запуска? Im сделаноAndroid - авария при запуске
Main_Activity
import android.app.Activity;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentManager;
import android.support.v4.widget.DrawerLayout;
import android.support.v7.app.ActionBar;
import android.support.v7.app.AppCompatActivity;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.ViewGroup;
import android.widget.TextView;
import java.io.IOException;
import java.net.InetAddress;
import java.net.UnknownHostException;
public class MainActivity extends AppCompatActivity
implements NavigationDrawerFragment.NavigationDrawerCallbacks {
/**
* Fragment managing the behaviors, interactions and presentation of the navigation drawer.
*/
private NavigationDrawerFragment mNavigationDrawerFragment;
/**
* Used to store the last screen title. For use in {@link #restoreActionBar()}.
*/
private CharSequence mTitle;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
mNavigationDrawerFragment = (NavigationDrawerFragment)
getSupportFragmentManager().findFragmentById(R.id.navigation_drawer);
mTitle = getTitle();
// Set up the drawer.
mNavigationDrawerFragment.setUp(
R.id.navigation_drawer,
(DrawerLayout) findViewById(R.id.drawer_layout));
//SERVER1
boolean reachable = false;
try {
reachable = InetAddress.getByName("www.google.com").isReachable(2000);
} catch (UnknownHostException e) {
// TODO Auto-generated catch block
e.printStackTrace();
TextView view = (TextView) findViewById(R.id.textView2);
view.setText("server down");
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
TextView view = (TextView) findViewById(R.id.textView2);
view.setText("server down");
}
if(reachable == true){
TextView view = (TextView) findViewById(R.id.textView2);
view.setText("server works");
} else{
}
//SERVER2
boolean reachable2 = false;
try {
reachable2 = InetAddress.getByName("www.wikipedia.com").isReachable(2000);
} catch (UnknownHostException e) {
// TODO Auto-generated catch block
e.printStackTrace();
TextView view = (TextView) findViewById(R.id.textView3);
view.setText("server down");
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
TextView view = (TextView) findViewById(R.id.textView3);
view.setText("server down");
}
if(reachable2 == true){
TextView view = (TextView) findViewById(R.id.textView3);
view.setText("server works");
} else{
}
}
@Override
public void onNavigationDrawerItemSelected(int position) {
Fragment myFragment = null;
switch (position) {
case 0:
myFragment = new First_Fragment();
break;
case 1:
myFragment = new Second_Fragment();
break;
case 2:
myFragment = new Third_Fragment();
break;
}
// update the main content by replacing fragments
FragmentManager fragmentManager = getSupportFragmentManager();
fragmentManager.beginTransaction()
.replace(R.id.container, myFragment)
.commit();
}
public void onSectionAttached(int number) {
switch (number) {
case 1:
mTitle = getString(R.string.title_section1);
break;
case 2:
mTitle = getString(R.string.title_section2);
break;
case 3:
mTitle = getString(R.string.title_section3);
break;
}
}
public void restoreActionBar() {
ActionBar actionBar = getSupportActionBar();
actionBar.setDisplayShowTitleEnabled(true);
actionBar.setTitle(mTitle);
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
if (!mNavigationDrawerFragment.isDrawerOpen()) {
// Only show items in the action bar relevant to this screen
// if the drawer is not showing. Otherwise, let the drawer
// decide what to show in the action bar.
getMenuInflater().inflate(R.menu.main, menu);
restoreActionBar();
return true;
}
return super.onCreateOptionsMenu(menu);
}
@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);
}
/**
* A placeholder fragment containing a simple view.
*/
public static class PlaceholderFragment extends Fragment {
/**
* The fragment argument representing the section number for this
* fragment.
*/
private static final String ARG_SECTION_NUMBER = "section_number";
/**
* Returns a new instance of this fragment for the given section
* number.
*/
public static PlaceholderFragment newInstance(int sectionNumber) {
PlaceholderFragment fragment = new PlaceholderFragment();
Bundle args = new Bundle();
args.putInt(ARG_SECTION_NUMBER, sectionNumber);
fragment.setArguments(args);
return fragment;
}
public PlaceholderFragment() {
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.fragment_main, container, false);
return rootView;
}
@Override
public void onAttach(Activity activity) {
super.onAttach(activity);
((MainActivity) activity).onSectionAttached(
getArguments().getInt(ARG_SECTION_NUMBER));
}
}
}
first_layout
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textAppearance="?android:attr/textAppearanceLarge"
android:text="Large Text"
android:id="@+id/textView2"
android:layout_alignParentTop="true"
android:layout_centerHorizontal="true"
android:layout_marginTop="107dp" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textAppearance="?android:attr/textAppearanceLarge"
android:text="Large Text"
android:id="@+id/textView3"
android:layout_centerVertical="true"
android:layout_alignLeft="@+id/textView2"
android:layout_alignStart="@+id/textView2" />
</RelativeLayout>
First_Fragment и Second_Fragment и Third_Fragment
import android.os.Bundle;
import android.support.annotation.Nullable;
import android.support.v4.app.Fragment;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
public class First_Fragment extends Fragment {
View myView;
@Nullable
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
myView = inflater.inflate(R.layout.first_layout, container, false);
return myView;
}
}
Он падает каждый раз при запуске. Я потерял 2 часа игры в Google и chcying мой код. Любое решение? Мне жаль, если его ошибка noob, я новичок. Спасибо!
Manifest
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="test.testapp">
<application
android:allowBackup="true"
android:icon="@mipmap/ic_launcher"
android:label="@string/app_name"
android:theme="@style/AppTheme">
<activity
android:name=".MainActivity"
android:label="@string/app_name">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
</manifest>
LogCat
http://pastebin.com/f1vwCTST - LogCat здесь
Пожалуйста, разместите свой стек. –
Вы обнаружите какое-либо исключение в своем логарифме? – Jens
Вам не нужно искать код - если вы посмотрите на [logcat] (http://developer.android.com/tools/help/logcat.html), он скажет вам, где ваш код не работает. Если вы не понимаете выход, отправьте его здесь, и кто-то поможет вам. – adelphus