Saving Activity state int String Array Double on Android
private int[] mData = new int[2]; // fill some values into array!!
@Override
protected void onSaveInstanceState(Bundle outState) {
super.onSaveInstanceState(outState);
outState.putBoolean("myBoolean", true);
outState.putDouble("myDouble", 2.7);
outState.putInt("myInt", 5);
outState.putString("myString", "Heloo girls!");
int[] data = new int[mData.length];
for (int i = 0; i < data.length; i++) {
data[i] = mData[i];
}
outState.putIntArray("myArray", data);
}
@Override
public void onRestoreInstanceState(Bundle savedInstanceState) {
super.onRestoreInstanceState(savedInstanceState);
boolean myBoolean = savedInstanceState.getBoolean("myBoolean", false); // false basic value
double myDouble = savedInstanceState.getDouble("myDouble", 1.5); // 1.5 basic value
int myInt = savedInstanceState.getInt("myInt", 10);
String myString = savedInstanceState.getString("myString", "Hello boys!");
int[] data = savedInstanceState.getIntArray("myArray");
if (data != null && data.length == mData.length) {
for (int i = 0; i < data.length; i++) {
mData[i] = data[i];
}
}
}
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
boolean myBoolean = savedInstanceState != null ? savedInstanceState.getBoolean("myBoolean", false) : true;
// etc. .......
}
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AdMob in Android emulator not visible?
You have to using some from this libraries:
GoogleAdMobAdsSdk-4.3.1.jar
GoogleAdMobAdsSdk-6.0.1.jar
GoogleAdMobAdsSdk-6.2.1.jar
AndroidManifest.xml
onCreate in your Activity.java
main.xml (res/layout)
You have to using some from this libraries:
GoogleAdMobAdsSdk-4.3.1.jar
GoogleAdMobAdsSdk-6.0.1.jar
GoogleAdMobAdsSdk-6.2.1.jar
AndroidManifest.xml
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="//schemas.android.com/apk/res/android"
package="cz.okhelp.admob"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk android:minSdkVersion="13"
android:targetSdkVersion="16"/>
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
<application android:icon="@drawable/ic_launcher" android:label="@string/app_name">
<meta-data
android:value="a14d932xxxxxxxx"
android:name="ADMOB_PUBLISHER_ID" />
<activity android:name=".AdmobActivity"
android:label="@string/app_name">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity android:name="com.google.ads.AdActivity"
android:configChanges="keyboard|keyboardHidden|orientation|screenLayout|uiMode|screenSize|smallestScreenSize" />
</application>
</manifest>
onCreate in your Activity.java
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
AdViw adView = new AdView(this, AdSize.BANNER, "a14d932xxxxxxxxx");//MY_AD_UNIT_ID
LinearLayout layout = (LinearLayout)findViewById(R.id.idReklamaLayout);
// Add the adView to it
layout.addView(adView);
// Initiate a generic request to load it with an ad
AdRequest adRequest = new AdRequest();
//adRequest.setTesting(true);
adRequest.setGender(AdRequest.Gender.MALE);
adView.loadAd(adRequest);
}
main.xml (res/layout)
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="//schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical" >
<TextView
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="@string/hello" />
<LinearLayout xmlns:android="//schemas.android.com/apk/res/android"
android:id="@+id/idReklamaLayout"
android:orientation="vertical"
android:gravity="center"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
/>
<TextView
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="3" />
</LinearLayout>
Example source code for Android development. How set gray text to EditText when EditText is blank.
Hint text to display when the text is empty.
In layout/main.xml insert to EditText row Attribute Name android:hint="Some text"
Programatically you can use method setHint:
Hint text to display when the text is empty.
In layout/main.xml insert to EditText row Attribute Name android:hint="Some text"
<EditText
android:id="@+id/myEdit"
android:layout_height="wrap_content" android:layout_width="fill_parent"
android:hint="Some text"
android:singleLine="true"
</EditText>
Programatically you can use method setHint:
// setHint(CharSequence hint) example
(EditText)findViewById(R.id.myEdit).setHint("My text");
// or int resId as method setHint(int resId)
EditText myEdit = findViewById(R.id.myEdit);
myEdit.setHint(R.string.app_name);
Go to Eclipse menu:
Window -> Preferences -> Java -> Code Style -> Formatter
Press NEW profile or EDIT if have you some profile.
Setup your settings.
Save settings.
Window -> Preferences -> Java -> Code Style -> Formatter
Press NEW profile or EDIT if have you some profile.
Setup your settings.
Save settings.
Google Android button example source code for developers.
// get handle
Button myButton;
myButton = (Button)findViewById(R.id.idMyButton);
//set focus
myButton.requestFocus();
// set background image
myButton.setBackgroundResource(R.drawable.backImage);
// or
myButton.setBackgroundDrawable(getResources().getDrawable( R.drawable.someImage));
// set visibility
myButton.setVisibility(View.INVISIBLE); // VISIBLE
///////// SET LISTENER
Button myButton =(Button)findViewById(R.id.button1);
myButton.setOnClickListener(new Button.OnClickListener() {
public void onClick(View v) {
Toast.makeText(getApplicationContext(), "AHOJ",
Toast.LENGTH_LONG).show();
}
});
// or set onClickListener
myButton.setOnClickListener(myListener);
//end onCreate .....
private OnClickListener myListener = new OnClickListener() {
public void onClick(View v) {
}
}
// Context instead Activity as a parameter
@Override
public void onAttach(Context context) {
super.onAttach(context);
Activity a;
if (context instanceof Activity){
a=(Activity) context;
}
}
OnNoteClickedListener listener;
/* old emxample of usage
@Override
public void onAttach(Activity activity) {
super.onAttach(activity);
try {
listener = (OnNoteClickedListener) activity;
} catch (ClassCastException e) {
throw new ClassCastException(activity.toString()
+ " must implement OnNoteClickedListener");
}
}
*/
// new version of code
@Override
public void onAttach(Context context) {
super.onAttach(context);
Activity a;
if (context instanceof Activity){
a=(Activity) context;
try {
listener = (OnNoteClickedListener) a;
} catch (ClassCastException e) {
throw new ClassCastException(a.toString()
+ " must implement OnNoteClickedListener");
}
}
}
Editace: 2016-03-02 08:15:58
Počet článků v kategorii: 396
Url:saving-activity-state-int-string-array-double-on-android
