Witam!
Uczę się pisania w androidzie i podpieram się tym oto kursem aby zrozumieć obsługę zdarzeń (
oraz
). Napisałem taki oto kod:
Problem w tym że gdy odpalam APKę i klikam na przycisk to program się wywala. Oto kod:
import android.app.*;
import android.os.*;
import android.view.View;
import android.widget.Button;
import android.widget.TextView;
import android.util.Log;
public class MainActivity extends Activity
{
@Override
protected void onCreate(Bundle savedInstanceState)
{
Log.v("UWAGA", "Jestem przed onCreate");
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
//referencja do przycisku
Button zmiennaPrzycisk = (Button) findViewById(R.id.Button1);
//utworzenie listenera onClick
zmiennaPrzycisk.setOnClickListener(
new Button.OnClickListener() //forma interfejsu (takie są zasady Javy)
{
public void onClick(View v)
{
Log.v("UWAGA", "Jestem przed referencją do TextView");
TextView zmiennaLabel = (TextView) findViewById(R.id.Label1);
zmiennaLabel.setText("Kliknięto przycisk!");
Log.v("UWAGA", "Jestem ZA referencją TextView");
}
}
);
}
}
A oto co wypluł LogCat:
08-22 18:25:02.421 10204 10204 I zygote64 Late-enabling -Xcheck:jni
08-22 18:25:02.444 10204 10204 I zygote64 Reinit property: dalvik.vm.checkjni= false
08-22 18:25:02.459 10204 10204 D ActivityThread ActivityThread,attachApplication
08-22 18:25:02.508 10204 10204 D HwFLClassLoader get used feature list :/feature/used-list failed!
08-22 18:25:02.508 10204 10204 D HwFLClassLoader USE_FEATURE_LIST had not init!
08-22 18:25:02.524 10204 10204 E MemoryLeakMonitorManager MemoryLeakMonitor.jar is not exist!
08-22 18:25:02.525 10204 10204 E Minikin Could not get cmap table size!
08-22 18:25:02.534 10204 10204 I HwCust Constructor found for class android.app.HwCustActivityImpl
08-22 18:25:02.534 10204 10204 D HwCust Create obj success use class android.app.HwCustActivityImpl
08-22 18:25:02.537 10204 10204 V HwPolicyFactory : success to get AllImpl object and return....
08-22 18:25:02.538 10204 10204 I HwCust Constructor found for class android.app.HwCustHwWallpaperManagerImpl
08-22 18:25:02.539 10204 10204 D HwCust Create obj success use class android.app.HwCustHwWallpaperManagerImpl
08-22 18:25:02.543 10204 10204 V HwWidgetFactory : successes to get AllImpl object and return....
08-22 18:25:02.546 10204 10204 V ActivityThread ActivityThread,callActivityOnCreate
08-22 18:25:02.547 10204 10204 V UWAGA Jestem przed onCreate
08-22 18:25:02.562 10204 10204 D CubicBezierInterpolator CubicBezierInterpolator mControlPoint1x = 0.23, mControlPoint1y = 0.06, mControlPoint2x = 0.09, mControlPoint2y = 0.97
08-22 18:25:02.562 10204 10204 D CubicBezierInterpolator CubicBezierInterpolator mControlPoint1x = 0.6, mControlPoint1y = 0.9, mControlPoint2x = 0.8, mControlPoint2y = 1.0
08-22 18:25:02.563 10204 10204 D CubicBezierInterpolator CubicBezierInterpolator mControlPoint1x = 0.23, mControlPoint1y = 0.06, mControlPoint2x = 0.09, mControlPoint2y = 0.97
08-22 18:25:02.563 10204 10204 D CubicBezierInterpolator CubicBezierInterpolator mControlPoint1x = 0.6, mControlPoint1y = 0.9, mControlPoint2x = 0.8, mControlPoint2y = 1.0
08-22 18:25:02.572 10204 10204 W Utils Utils_isSuperResolutionSupport [load libai_client.so failed]
08-22 18:25:02.576 10204 10204 D HwGalleryCacheManagerImpl mIsEffect:false
08-22 18:25:02.612 10204 10204 D HwRTBlurUtils check blur style for HwPhoneWindow, themeResId : 0x7f050000, context : com.mycompany.myapp.MainActivity@d7fe4ad, Nhwext : 0, get Blur : disable with , null
08-22 18:25:02.615 10204 10204 W WindowDecorActionBar should not do the transition or the transition anim is null or it is running or the mContainer view is null or mContainer view hasn't been drawn to screen
08-22 18:25:02.617 10204 10204 E HwResourcesImpl readDefaultConfig : FileNotFoundException
08-22 18:25:02.649 10204 10204 D ActivityThread add activity client record, r= ActivityRecord{4b99dec token=android.os.BinderProxy@c13f856 {com.mycompany.myapp/com.mycompany.myapp.MainActivity}} token= android.os.BinderProxy@c13f856
08-22 18:25:02.653 10204 10204 I HwSecImmHelper mSecurityInputMethodService is null
08-22 18:25:02.661 10204 10204 D OpenGLRenderer HWUI Binary is enabled
08-22 18:25:02.662 10204 10231 D OpenGLRenderer HWUI GL Pipeline
08-22 18:25:02.671 10204 10204 I PressGestureDetector HiTouch restricted: AboardArea.
08-22 18:25:02.700 10204 10231 I OpenGLRenderer Initialized EGL, version 1.4
08-22 18:25:02.700 10204 10231 D OpenGLRenderer Swap behavior 2
08-22 18:25:02.711 10204 10231 D mali_winsys EGLint new_window_surface(egl_winsys_display *, void *, EGLSurface, EGLConfig, egl_winsys_surface **, egl_color_buffer_format *, EGLBoolean) returns 0x3000
08-22 18:25:02.711 10204 10231 E vndksupport Could not load vendor/lib64/egl/libGLES_mali_v2.so from sphal namespace: dlopen failed: library "vendor/lib64/egl/libGLES_mali_v2.so" not found.
08-22 18:25:02.731 10204 10204 W InputMethodManager startInputReason = 1
08-22 18:25:02.747 10204 10204 W InputMethodManager startInputReason = 5
08-22 18:25:03.753 10204 10204 I hwaps JNI_OnLoad
08-22 18:25:03.756 10204 10204 W Settings mValues not put! needsGenerationTracker: true currentGeneration: -1 name: enable_navbar value: 1
08-22 18:25:03.828 10204 10204 V AudioManager playSoundEffect effectType: 0
08-22 18:25:03.829 10204 10204 V UWAGA Jestem przed referencją do TextView
08-22 18:25:03.829 10204 10204 D AndroidRuntime Shutting down VM
Android