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Laufzeitfehler für mein Android Studio-Projekt

2017-03-05 1 views
0

Ich wurde mein MainActivity-Code geändert, um Navigation-Schublade zu öffnen, wenn app startet.Aber dieser Versuch hat nicht funktioniert und ich mache alle Änderungen rückgängig.Noch bekomme ich Fehler beim Ausführen app.Wie kann ich diesen Fehler beheben? hilf mir auch, Navigations-Schublade beim App-Start zu öffnen.Laufzeitfehler für mein Android Studio-Projekt

Dies ist der Code, den ich für diesen Zweck verwendet

static final int DRAWER_DELAY = 200; 

@Override 
protected void onCreate(Bundle savedInstanceState) { 
    ... 
    // Building NavDrawer logic here. Just a method call would be best. 
    ... 
    new Handler().postDelayed(openDrawerRunnable(), DRAWER_DELAY); 
} 

private Runnable openDrawerRunnable() { 
    return new Runnable() { 

     @Override 
     public void run() { 
      drawerLayout.openDrawer(Gravity.LEFT); 
     } 
    } 
}

Dieser Code

meine MainActivity ist 
package com.example.mohammedalukkal.ktucses4; 

import android.content.Context; 
import android.content.Intent; 
import android.os.Bundle; 
import android.support.design.widget.CoordinatorLayout; 
import android.support.design.widget.FloatingActionButton; 
import android.support.v7.widget.CardView; 
import android.text.Layout; 
import android.text.style.BackgroundColorSpan; 
import android.view.View; 
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.view.Menu; 
import android.view.MenuItem; 
import android.view.WindowManager; 
import android.view.animation.Animation; 
import android.view.animation.AnimationUtils; 
import android.widget.FrameLayout; 
import android.widget.ImageView; 
import android.widget.RelativeLayout; 
import android.widget.TextView; 
import android.widget.Toast; 
import android.app.FragmentTransaction; 

public class MainActivity extends AppCompatActivity 
      implements NavigationView.OnNavigationItemSelectedListener { 
     private static long time; 
     FloatingActionButton fab,fab_univer,fab_drive,fab_web; 
     TextView university,ktuweb,drive; 
     Animation Fabopen,Fabclose,Fabclockwise,Fabanticlockwise,dimon,dimoff; 
     FragmentTransaction fragmentTransaction; 
     boolean isopen = false; 
     ImageView dim; 


     @Override 
     protected void onCreate(Bundle savedInstanceState) { 
      super.onCreate(savedInstanceState); 
      setContentView(R.layout.activity_main); 
      Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar); 
      setSupportActionBar(toolbar); 

      fab = (FloatingActionButton) findViewById(R.id.fab); 
      university = (TextView) findViewById(R.id.university); 
      ktuweb = (TextView) findViewById(R.id.ktuweb); 
      drive = (TextView) findViewById(R.id.drive); 
      fab_drive = (FloatingActionButton) findViewById(R.id.fab_drive); 
      fab_web = (FloatingActionButton) findViewById(R.id.fab_web); 
      fab_univer = (FloatingActionButton) findViewById(R.id.fab_univer); 
      Fabopen = AnimationUtils.loadAnimation(getApplicationContext(), R.anim.fab_open); 
      Fabclose = AnimationUtils.loadAnimation(getApplicationContext(), R.anim.fab_close); 
      Fabclockwise = AnimationUtils.loadAnimation(getApplicationContext(), R.anim.rotate_clockwise); 
      Fabanticlockwise = AnimationUtils.loadAnimation(getApplicationContext(), R.anim.rotate_anticlockwise); 
      dim = (ImageView) findViewById(R.id.dim); 
      dimon = AnimationUtils.loadAnimation(getApplicationContext(),R.anim.dim_on); 
      dimoff = AnimationUtils.loadAnimation(getApplicationContext(),R.anim.dim_off); 

      fab.setOnClickListener(new View.OnClickListener() { 
       @Override 
       public void onClick(View v) { 
        if (isopen) { 
         university.startAnimation(Fabclose); 
         ktuweb.startAnimation(Fabclose); 
         drive.startAnimation(Fabclose); 
         fab.startAnimation(Fabanticlockwise); 
         fab_univer.startAnimation(Fabclose); 
         fab_web.startAnimation(Fabclose); 
         fab_drive.startAnimation(Fabclose); 
         dim.startAnimation(dimoff); 
         dim.setClickable(false); 
         fab_web.setClickable(false); 
         fab_univer.setClickable(false); 
         fab_drive.setClickable(false); 
         isopen = false; 


        } else { 
         university.startAnimation(Fabopen); 
         ktuweb.startAnimation(Fabopen); 
         drive.startAnimation(Fabopen); 
         fab.startAnimation(Fabclockwise); 
         fab_univer.startAnimation(Fabopen); 
         fab_web.startAnimation(Fabopen); 
         fab_drive.startAnimation(Fabopen); 
         dim.startAnimation(dimon); 
         dim.setClickable(true); 
         fab_web.setClickable(true); 
         fab_univer.setClickable(true); 
         fab_drive.setClickable(true); 
         isopen = true; 


        } 

       } 
      }); 

      fab_univer.setOnClickListener(new View.OnClickListener() { 
       @Override 
       public void onClick(View view) { 

        startActivity(new Intent(getApplicationContext(),University.class)); 

        if (isopen) 
        { 
         university.startAnimation(Fabclose); 
         ktuweb.startAnimation(Fabclose); 
         drive.startAnimation(Fabclose); 
         fab.startAnimation(Fabanticlockwise); 
         fab_univer.startAnimation(Fabclose); 
         fab_web.startAnimation(Fabclose); 
         fab_drive.startAnimation(Fabclose); 
         dim.startAnimation(dimoff); 
         dim.setClickable(false); 
         fab_web.setClickable(false); 
         fab_univer.setClickable(false); 
         fab_drive.setClickable(false); 
         isopen = false; 
        } 

       } 
      }); 
      fab_web.setOnClickListener(new View.OnClickListener() { 
       @Override 
       public void onClick(View view) { 
        startActivity(new Intent(getApplicationContext(),Ktuweb.class)); 

        if (isopen) 
        { 
         university.startAnimation(Fabclose); 
         ktuweb.startAnimation(Fabclose); 
         drive.startAnimation(Fabclose); 
         fab.startAnimation(Fabanticlockwise); 
         fab_univer.startAnimation(Fabclose); 
         fab_web.startAnimation(Fabclose); 
         fab_drive.startAnimation(Fabclose); 
         dim.startAnimation(dimoff); 
         dim.setClickable(false); 
         fab_web.setClickable(false); 
         fab_univer.setClickable(false); 
         fab_drive.setClickable(false); 
         isopen = false; 
        } 
       } 
      }); 
      fab_drive.setOnClickListener(new View.OnClickListener() { 
       @Override 
       public void onClick(View view) { 
        startActivity(new Intent(getApplicationContext(),Drive.class)); 

        if (isopen) 
        { 
         university.startAnimation(Fabclose); 
         ktuweb.startAnimation(Fabclose); 
         drive.startAnimation(Fabclose); 
         fab.startAnimation(Fabanticlockwise); 
         fab_univer.startAnimation(Fabclose); 
         fab_web.startAnimation(Fabclose); 
         fab_drive.startAnimation(Fabclose); 
         dim.startAnimation(dimoff); 
         dim.setClickable(false); 
         fab_web.setClickable(false); 
         fab_univer.setClickable(false); 
         fab_drive.setClickable(false); 
         isopen = false; 
        } 
       } 
      }); 



      final 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.addDrawerListener(toggle); 
      toggle.syncState(); 

      NavigationView navigationView = (NavigationView) findViewById(R.id.nav_view); 
      navigationView.setNavigationItemSelectedListener(this); 

      dim.setOnClickListener(new View.OnClickListener() { 
       @Override 
       public void onClick(View view) { 
        if (isopen) 
        { 
         university.startAnimation(Fabclose); 
         ktuweb.startAnimation(Fabclose); 
         drive.startAnimation(Fabclose); 
         fab.startAnimation(Fabanticlockwise); 
         fab_univer.startAnimation(Fabclose); 
         fab_web.startAnimation(Fabclose); 
         fab_drive.startAnimation(Fabclose); 
         dim.startAnimation(dimoff); 
         dim.setClickable(false); 
         fab_web.setClickable(false); 
         fab_univer.setClickable(false); 
         fab_drive.setClickable(false); 
         isopen = false; 
        } 
       } 

      }); 

     } 

     @Override 
     public void onBackPressed() { 
      DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout); 
      if (drawer.isDrawerOpen(GravityCompat.START)) { 
       drawer.closeDrawer(GravityCompat.START); 
      } 
      else if (isopen) { 
       university.startAnimation(Fabclose); 
       ktuweb.startAnimation(Fabclose); 
       drive.startAnimation(Fabclose); 
       fab.startAnimation(Fabanticlockwise); 
       fab_univer.startAnimation(Fabclose); 
       fab_web.startAnimation(Fabclose); 
       fab_drive.startAnimation(Fabclose); 
       dim.startAnimation(dimoff); 
       dim.setClickable(false); 
       fab_web.setClickable(false); 
       fab_univer.setClickable(false); 
       fab_drive.setClickable(false); 
       isopen = false; 
      } 
      else { 
       if (time + 2000 > System.currentTimeMillis()) { 
        super.onBackPressed(); 
       } else { 
        Toast.makeText(MainActivity.this, "Press back again to exit", Toast.LENGTH_SHORT).show(); 
       } 
       time = System.currentTimeMillis(); 
      } 
     } 

     @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; 
     } 





     @SuppressWarnings("StatementWithEmptyBody") 
     @Override 
     public boolean onNavigationItemSelected(MenuItem item) { 
      // Handle navigation view model clicks here. 
      int id = item.getItemId(); 

      if (id == R.id.sub_1) { 

       fragmentTransaction = getFragmentManager().beginTransaction(); 
       fragmentTransaction.replace(R.id.frame,new ma202Fragment()); 
       fragmentTransaction.commit(); 
       getSupportActionBar().setTitle("MA202"); 
       getSupportActionBar().setSubtitle("Probability distributions,Transforms and Numerical Methods"); 


      } else if (id == R.id.sub_2) { 

       fragmentTransaction = getFragmentManager().beginTransaction(); 
       fragmentTransaction.replace(R.id.frame,new cs202Fragment()); 
       fragmentTransaction.commit(); 
       getSupportActionBar().setTitle("CS202"); 
       getSupportActionBar().setSubtitle("Computer Organization and Architecture"); 

      } else if (id == R.id.sub_3) { 

       fragmentTransaction = getFragmentManager().beginTransaction(); 
       fragmentTransaction.replace(R.id.frame,new cs204Fragment()); 
       fragmentTransaction.commit(); 
       getSupportActionBar().setTitle("CS204"); 
       getSupportActionBar().setSubtitle("Operating Systems"); 

      } else if (id == R.id.sub_4) { 

       fragmentTransaction = getFragmentManager().beginTransaction(); 
       fragmentTransaction.replace(R.id.frame,new cs206Fragment()); 
       fragmentTransaction.commit(); 
       getSupportActionBar().setTitle("CS206"); 
       getSupportActionBar().setSubtitle("Object Oriented Design and Programming"); 

      } else if (id == R.id.sub_5) { 

       fragmentTransaction = getFragmentManager().beginTransaction(); 
       fragmentTransaction.replace(R.id.frame,new cs208Fragment()); 
       fragmentTransaction.commit(); 
       getSupportActionBar().setTitle("CS208"); 
       getSupportActionBar().setSubtitle("Principles of data base design"); 

      } else if (id == R.id.sub_6) { 

       fragmentTransaction = getFragmentManager().beginTransaction(); 
       fragmentTransaction.replace(R.id.frame,new hs200Fragment()); 
       fragmentTransaction.commit(); 
       getSupportActionBar().setTitle("HS200"); 
       getSupportActionBar().setSubtitle("Buisness Economics"); 

      } else if (id == R.id.sub_7) { 

       fragmentTransaction = getFragmentManager().beginTransaction(); 
       fragmentTransaction.replace(R.id.frame,new hs210Fragment()); 
       fragmentTransaction.commit(); 
       getSupportActionBar().setTitle("HS210"); 
       getSupportActionBar().setSubtitle("Life Skills"); 

      } else if (id == R.id.lab_1) { 

       fragmentTransaction = getFragmentManager().beginTransaction(); 
       fragmentTransaction.replace(R.id.frame,new cs232Fragment()); 
       fragmentTransaction.commit(); 
       getSupportActionBar().setTitle("CS232"); 
       getSupportActionBar().setSubtitle("Free and open system software lab"); 

      } else if (id == R.id.lab_2) { 

       fragmentTransaction = getFragmentManager().beginTransaction(); 
       fragmentTransaction.replace(R.id.frame,new cs234Fragment()); 
       fragmentTransaction.commit(); 
       getSupportActionBar().setTitle("CS234"); 
       getSupportActionBar().setSubtitle("Digital systems lab"); 

      } else if (id == R.id.nav_about) { 

       startActivity(new Intent(getApplicationContext(),About.class)); 

      } else if (id == R.id.nav_share) { 

       Intent myIntent = new Intent(Intent.ACTION_SEND); 
       myIntent.setType("text/plain"); 
       String shareBody = "KTU CSE S4 app download from the given link : link (use chrome browser)"; 
       String shareSub = "Download KTU CSE S4 app"; 
       myIntent.putExtra(Intent.EXTRA_SUBJECT,shareSub); 
       myIntent.putExtra(Intent.EXTRA_TEXT,shareBody); 
       startActivity(Intent.createChooser(myIntent, "Share KTU CSE S4 app via")); 

      } 

      DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout); 
      drawer.closeDrawer(GravityCompat.START); 

      if (isopen) 
      { 
       university.startAnimation(Fabclose); 
       ktuweb.startAnimation(Fabclose); 
       drive.startAnimation(Fabclose); 
       fab.startAnimation(Fabanticlockwise); 
       fab_univer.startAnimation(Fabclose); 
       fab_web.startAnimation(Fabclose); 
       fab_drive.startAnimation(Fabclose); 
       dim.startAnimation(dimoff); 
       dim.setClickable(false); 
       fab_web.setClickable(false); 
       fab_univer.setClickable(false); 
       fab_drive.setClickable(false); 
       isopen = false; 
      } 
      return true; 
     } 
    }

Quelle

2017-03-05 Mohammed Alukkal

+1

überprüfen Sie bitte hier beantworten. link http://stackoverflow.com/questions/18475419/how-to-open-navigationdrawer-on-first-app-start –

Antwort

0 
@Override 
protected void onCreate(Bundle savedInstanceState) { 
    // your other code... 
    // setContentView(...) initialize drawer and stuff like that... 

    // use thread for performance 
    Thread t = new Thread(new Runnable() { 

     @Override 
     public void run() { 

      SharedPreferences sp = Context.getSharedPreferences("yoursharedprefs", 0); 
      boolean isFirstStart = sp.getBoolean("key", true); 
      // we will not get a value at first start, so true will be returned 

      // if it was the first app start 
      if(isFirstStart) { 
       mDrawerLayout.openDrawer(mDrawerList); 
       Editor e = sp.edit(); 
       // we save the value "false", indicating that it is no longer the first appstart 
       e.putBoolean("key", false); 
       e.commit(); 
      } 
     }   
    }); 

    t.start(); 
}

Quelle

2017-03-05 05:24:42

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