actionbar.setsubtitle 추가 한 후 나는 (bignerdranch에서) 내 응용 프로그램을 실행하려고 다음과 같은 코드를 추가 한 후 그것을 실행할 수 없습니다 :안드로이드 응용 프로그램 충돌
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB) { ActionBar actionBar = getActionBar(); actionBar.setSubtitle("Bodies of Water"); }
내가 런타임 예외를 얻을. 이 줄을 제거하면 응용 프로그램이 정상적으로 실행됩니다. 물론 나는 @ TargetApi (11)
나는 내 대상 SDK를 변경하려고했는데, 나는 다른 사람들의 코드를 복사 해봤는데 줄을 추가했습니다. 아무것도 작동하지 않는다 !!
private void updateQuestion() {
int question = mQuestionBank[mCurrentIndex].getQuestion();
mQuestionTextView.setText(question);
}
private void checkAnswer(boolean userPressedTrue) {
boolean answerIsTrue = mQuestionBank[mCurrentIndex].isTrueQuestion();
int messageResId = 0;
if (mIsCheater[mCurrentIndex]) {
messageResId = R.string.judgment_toast;
} else {
if (userPressedTrue == answerIsTrue) {
messageResId = R.string.correct_toast;
} else {
messageResId = R.string.incorrect_toast;
}
}
Toast.makeText(this, messageResId, Toast.LENGTH_SHORT).show();
}
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
if (data == null) {
return;
}
mIsCheater[mCurrentIndex] = data.getBooleanExtra(
CheatActivity.EXTRA_ANSWER_SHOWN, false);
}
@TargetApi(11)
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
Log.d(TAG, "onCreate(Bundle) called");
setContentView(R.layout.activity_quiz);
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB) {
ActionBar actionBar = getActionBar();
actionBar.setSubtitle("Bodies of Water");
}
mQuestionTextView = (TextView) findViewById(R.id.question_text_view);
mTrueButton = (Button) findViewById(R.id.true_button);
mTrueButton.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
checkAnswer(true);
}
});
mFalseButton = (Button) findViewById(R.id.false_button);
mFalseButton.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
checkAnswer(false);
}
}
);
mNextButton = (Button) findViewById(R.id.next_button);
mNextButton.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
mCurrentIndex = (mCurrentIndex + 1) % mQuestionBank.length;
// mIsCheater=false;
updateQuestion();
}
});
if (savedInstanceState != null) {
mCurrentIndex = savedInstanceState.getInt(KEY_INDEX, 0);
mIsCheater[mCurrentIndex] = savedInstanceState.getBoolean(CHEATED);
}
mCheatButton = (Button) findViewById(R.id.cheat_button);
mCheatButton.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Intent i = new Intent(QuizActivity.this, CheatActivity.class);
boolean answerIsTrue = mQuestionBank[mCurrentIndex]
.isTrueQuestion();
i.putExtra(CheatActivity.EXTRA_ANSWER_IS_TRUE, answerIsTrue);
startActivityForResult(i, 0);
}
});
updateQuestion();
}
@Override
public void onSaveInstanceState(Bundle savedInstanceState) {
super.onSaveInstanceState(savedInstanceState);
Log.i(TAG, "onSaveInstanceState");
savedInstanceState.putInt(KEY_INDEX, mCurrentIndex);
savedInstanceState.putBoolean(CHEATED, mIsCheater[mCurrentIndex]);
}
@Override
public void onStart() {
super.onStart();
Log.d(TAG, "onStart() called");
}
@Override
public void onPause() {
super.onPause();
Log.d(TAG, "onPause() called");
}
@Override
public void onResume() {
super.onResume();
Log.d(TAG, "onResume() called");
}
@Override
public void onStop() {
super.onStop();
Log.d(TAG, "onStop() called");
}
@Override
public void onDestroy() {
super.onDestroy();
Log.d(TAG, "onDestroy() called");
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.quiz, 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();
if (id == R.id.action_settings) {
return true;
}
return super.onOptionsItemSelected(item);
}
} `
어떤 문제가 될 수 :
이 내 코드?
도와주세요 ..
가 지원 libraryh 것 같다? –
LogCat을 사용하여 충돌과 관련된 Java 스택 추적을 검사하십시오. https://stackoverflow.com/questions/23353173/unfortunately-myapp-has-stopped-how-can-i-solve-this – CommonsWare