half or quarter black screen in android
- by Mike McKeown
I have an android activity that when I launch sometimes (about 1 in 4 times) it only draws quarter or half the screen before showing it. When I change the orientation or press a button the screen draws properly.
I'm just using TextViews, Buttons, Fonts - no drawing or anything like that.
All of my code for initialising is in the onCreate(). In this method I'm loading a text file, of about 40 lines long, and also getting a shared preference. Could this cause a delay so that it can't draw the intent?
Thanks in advance if anyone has seen anything similar.
EDIT - I tried commenting out the loading of the word list, but it didn't fix the problem.
Here is the activity
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/mainRelativeLayout"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:background="@drawable/blue_abstract_background" >
<RelativeLayout
android:id="@+id/relativeScore"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:gravity="center_horizontal" >
<TextView
android:id="@+id/ScoreLabel"
style="@style/yellowShadowText"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_centerVertical="true"
android:padding="10dip"
android:text="SCORE:"
android:textSize="18dp" />
/>
<TextView
android:id="@+id/ScoreText"
style="@style/yellowShadowText"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerVertical="true"
android:layout_toRightOf="@id/ScoreLabel"
android:padding="5dip"
android:text="0"
android:textSize="18dp" />
<TextView
android:id="@+id/GameTimerText"
style="@style/yellowShadowText"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentRight="true"
android:layout_centerVertical="true"
android:layout_marginLeft="5dp"
android:layout_marginRight="5dp"
android:minWidth="25dp"
android:text="0"
android:textSize="18dp" />
<TextView
android:id="@+id/GameTimerLabel"
style="@style/yellowShadowText"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerVertical="true"
android:layout_toLeftOf="@id/GameTimerText"
android:padding="10dip"
android:text="TIMER:"
android:textSize="18dp" />
/>
</RelativeLayout>
<RelativeLayout
android:id="@+id/relativeHighScore"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_below="@id/relativeScore" >
<TextView
android:id="@+id/HighScoreLabel"
style="@style/yellowShadowText"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:padding="10dip"
android:text="HIGH SCORE:"
android:textSize="16dp" />
<TextView
android:id="@+id/HighScoreText"
style="@style/yellowShadowText"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_toRightOf="@id/HighScoreLabel"
android:padding="10dip"
android:text="0"
android:textSize="16dp" />
</RelativeLayout>
<LinearLayout
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_alignParentLeft="true"
android:layout_below="@+id/relativeHighScore"
android:orientation="vertical" >
<LinearLayout
android:id="@+id/linearMissing"
android:layout_width="fill_parent"
android:layout_height="80dp"
android:layout_gravity="center"
android:orientation="vertical" >
<View
android:layout_width="match_parent"
android:layout_height="2dp"
android:background="@color/yellow_text" />
<TextView
android:id="@+id/MissingWordText"
style="@style/yellowShadowText"
android:layout_width="wrap_content"
android:layout_height="fill_parent"
android:layout_gravity="center_horizontal"
android:layout_marginTop="25dp"
android:text="MSSNG WRD"
android:textSize="22dp"
android:typeface="normal" />
</LinearLayout>
<View
android:layout_width="match_parent"
android:layout_height="2dp"
android:background="@color/yellow_text" />
<TableLayout
android:id="@+id/buttonsTableLayout"
android:layout_width="fill_parent"
android:layout_height="wrap_content" >
<TableRow
android:id="@+id/tableRow3"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:gravity="center_horizontal"
android:paddingTop="5dp" >
<Button
android:id="@+id/aVowelButton"
android:layout_width="66dp"
android:layout_height="66dp"
android:layout_gravity="center_horizontal"
android:layout_marginBottom="10dp"
android:layout_marginRight="5dp"
android:background="@drawable/blue_vowel_button"
android:text="@string/a"
android:textColor="@color/yellow_text"
android:textSize="30dp" />
<Button
android:id="@+id/eVowelButton"
android:layout_width="66dp"
android:layout_height="66dp"
android:layout_gravity="center_horizontal"
android:layout_marginBottom="10dp"
android:layout_marginRight="5dp"
android:background="@drawable/blue_vowel_button"
android:text="@string/e"
android:textColor="@color/yellow_text"
android:textSize="30dp" />
</TableRow>
<TableRow
android:id="@+id/tableRow4"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:gravity="center_horizontal" >
<Button
android:id="@+id/iVowelButton"
android:layout_width="66dp"
android:layout_height="66dp"
android:layout_gravity="center_horizontal"
android:layout_margin="5dp"
android:background="@drawable/blue_vowel_buttoni"
android:text="@string/i"
android:textColor="@color/yellow_text"
android:textSize="30dp" />
<Button
android:id="@+id/oVowelButton"
android:layout_width="66dp"
android:layout_height="66dp"
android:layout_gravity="center_horizontal"
android:layout_margin="5dp"
android:background="@drawable/blue_vowel_button"
android:text="@string/o"
android:textColor="@color/yellow_text"
android:textSize="30dp" />
<Button
android:id="@+id/uVowelButton"
android:layout_width="66dp"
android:layout_height="66dp"
android:layout_gravity="center_horizontal"
android:layout_margin="5dp"
android:background="@drawable/blue_vowel_button"
android:text="@string/u"
android:textColor="@color/yellow_text"
android:textSize="30dp" />
</TableRow>
</TableLayout>
<TextView
android:id="@+id/TimeToStartText"
style="@style/yellowShadowText"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:textSize="24dp" />
<Button
android:id="@+id/startButton"
style="@style/yellowShadowText"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center_horizontal"
android:layout_marginTop="10dp"
android:background="@drawable/blue_button_menu"
android:gravity="center"
android:padding="10dip"
android:text="START!"
android:textSize="28dp" />
</LinearLayout>
</RelativeLayout>
And the OnCreate() and a few methods:
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_game);
isNewWord = true;
m_gameScore = 0;
m_category = getCategoryFromExtras();
// loadWordList(m_category);
initialiseTextViewField();
loadHighScoreAndDifficulty();
setFonts();
setButtons();
setStartButton();
enableDisableButtons(false);
}
private void loadHighScoreAndDifficulty() {
//setting preferences
SharedPreferences prefs = this.getSharedPreferences(m_category, Context.MODE_PRIVATE);
int score = prefs.getInt(m_category, 0); //0 is the default value
m_highScore = score;
m_highScoreText.setText(String.valueOf(m_highScore));
prefs = this.getSharedPreferences(DIFFICULTY, Context.MODE_PRIVATE);
m_difficulty = prefs.getString(DIFFICULTY, NRML_DIFFICULTY);
}
private void initialiseTextViewField() {
m_startButton = (Button) findViewById(R.id.startButton);
m_missingWordText = (TextView) findViewById(R.id.MissingWordText);
m_gameScoreText = (TextView) findViewById(R.id.ScoreText);
m_gameScoreLabel = (TextView) findViewById(R.id.ScoreLabel);
m_gameTimerText = (TextView) findViewById(R.id.GameTimerText);
m_gameTimerLabel = (TextView) findViewById(R.id.GameTimerLabel);
m_timeToStartText = (TextView) findViewById(R.id.TimeToStartText);
m_highScoreLabel = (TextView) findViewById(R.id.HighScoreLabel);
m_highScoreText = (TextView) findViewById(R.id.HighScoreText);
}
private String getCategoryFromExtras() {
String category = "";
Bundle extras = getIntent().getExtras();
if (extras != null) {
category = extras.getString("category");
}
return category;
}
private void enableDisableButtons(boolean enable) {
Button button = (Button) findViewById(R.id.aVowelButton);
button.setEnabled(enable);
button = (Button) findViewById(R.id.eVowelButton);
button.setEnabled(enable);
button = (Button) findViewById(R.id.iVowelButton);
button.setEnabled(enable);
button = (Button) findViewById(R.id.oVowelButton);
button.setEnabled(enable);
button = (Button) findViewById(R.id.uVowelButton);
button.setEnabled(enable);
}
private void setStartButton() {
m_startButton.setOnClickListener(new View.OnClickListener() {
public void onClick(View view) {
m_gameScore = 0;
updateScore();
m_startButton.setVisibility(View.GONE);
m_timeToStartText.setVisibility(View.VISIBLE);
startPreTimer();
}
});
}
