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* MainActivity.java
public class MainActivity extends AppCompatActivity {
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protected void onCreate(Bundle savedInstanceState) {
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ίϯετϥΫλͰ Activity ؔ࿈ͷॳظԽΛ͠Α͏ͱ͢Δͱ·ͩॳظԽ͕ࡁΜͰͳ͍͜ͱ͕͋Δ
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* MainActivity.java
public class MainActivity extends AppCompatActivity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
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} ϨΠΞτΛදࣔ
R.layout.activity_main ʹؔͯ͠ޙड़
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໌ࣔత*OUFOU
* MainActivity.java
Intent intent = new Intent(this, Main2Activity.class);
intent.putExtra("name", “nonylene");
startActivity(intent);
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this Context Ͱɺ͜͜Ͱ MainActivity ࣗΛೖΕ͍ͯΔ.
(Activity Context ͷࢠΫϥε)
Context ΞϓϦͷڥใͳͲΛऔಘ͢ΔͷʹΘΕ͍ͯΔ.
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* MainActivity.java
Intent intent = new Intent(this, Main2Activity.class);
intent.putExtra("name", “nonylene");
startActivity(intent);
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lOPOZMFOFzͱ͍͏σʔλΛ֨ೲ
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* MainActivity.java
Intent intent = new Intent(this, Main2Activity.class);
intent.putExtra("name", “nonylene");
startActivity(intent);
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Uri uri = Uri.parse(“https://www.kmc.gr.jp/");
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startActivity(intent);
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Uri uri = Uri.parse(“https://www.kmc.gr.jp/");
Intent intent = new Intent(Intent.ACTION_VIEW, uri);
startActivity(intent);
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* MainActivity.java
Uri uri = Uri.parse(“https://www.kmc.gr.jp/");
Intent intent = new Intent(Intent.ACTION_VIEW, uri);
startActivity(intent);
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* activity_main.xml
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3Ϋϥε
• ϨΠΞτ layout/activity_main.xml
→ R.layout.activity_main
• 7JFX@id/text_view
→ R.id.text_view
• ͦͷଞɺR.string.hoge R.dimen.hoge ͳͲ
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* MainActivity.java
public class MainActivity extends AppCompatActivity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
}
} MBZPVUBDUJWJUZ@NBJOYNMΛදࣔ
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BQQ@OBNFͱఆٛͨ͠จࣈྻΛऔಘ
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String appName = context.getString(R.string.app_name);
ɾ values/strings.xml ʹఆٛ͞Ε͍ͯΔ
ɾ Ϧιʔε͔Βऔಘ͢Δʹ context ͕ඞཁʹͳΔ
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EQ
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TQ
w จࣈͷେ͖͞ͷ୯Ґ
w ͷϑΥϯτઃఆʹΑͬͯαΠζ͕มΘΔ
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جຊతͳଐੑ
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w 7JFXͷ෯ɾߴ͞ଐੑͰࢦఆ͢Δ
w ෯ android:width
ɾߴ͞ android:height
w ඞਢཁૉ
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w ͷ7JFXҰഋ·Ͱ͕Δ
• wrap_content
w ඞཁͳ͚͕ͩΔ
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XJEUIIFJHIU
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w ༨നΛઃఆ͢ΔͨΊͷଐੑ
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QBEEJOHNBSHJO
• android:padding (Top, Bottom…)
w ཁૉͷଆͷ༨ന
w എܠͳͲ༨നʹద༻͞ΕΔ
w ΫϦοΫ͢ΔΤϦΞ͕Δ
w layout_widthͳͲpaddingΛؚΉ
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QBEEJOHNBSHJO
• android:layout_margin (Top…)
w ཁૉͷ֎ଆͷ༨ന
w എܠͳͲ༨നʹద༻͞Εͳ͍
w ΫϦοΫ͢ΔΤϦΞͳͲʹؚ·Εͳ͍
w layout_widthͳͲpaddingΛؚ·ͳ͍
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QBEEJOHNBSHJO
Cite: https://www.washington.edu/accesscomputing/webd2/student/unit3/module4/lesson1.html
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7JTJCJMJUZ
• android:visibility
• ཁૉͷදࣔɾඇදࣔઃఆ
• VISIBLE: ݟ͑ΔʢσϑΥϧτʣ
• INVISIBLE: ݟ͑ͳ͍͕εϖʔεऔΔʢಁ໌ʣ
• GONE: ݟ͑ͳ͍͠εϖʔεऔΒͳ͍ʢফڈʣ
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MBZPVU@HSBWJUZ
• android:layout_gravity
w ͷ7JFXʹରͯ͠Ͳͷॴʹஔ͔͘
• hoge|piyo ͷΑ͏ʹॎԣͷҐஔΛࢦఆ
• top / bottom / start / end /
center_horizontal / center_vertical
• LinearLayout / FrameLayout ޙड़
Ͱ͏
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7JFX(SPVQ
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7JFX(SPVQ
w ෳͷ7JFXΛแͰ͖Δ7JFX
w .*Layoutͱ͍͏໊લ͕ଟ͍
w ·ͣ7JFX(SPVQΛઃஔ͠ɺͦͷதʹ7JFX
ΛೖΕ͍ͯ͘
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w ҰͭҰͭઃఆ͢Δඞཁ͕͋Δ
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3FMBUJWF-BZPVU
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w هड़͞Εͨॱ൪ʹࢠͷ7JFXΛฒΔ
w “android:orientation”Ͱ͖Λࢦఆ
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w ΧελϜੑԼ͕Δ͕ศར
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w ॏͶΔ͜ͱʹಛԽͨ͠ϨΠΞτ
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• android:layout_gravity Λ༻͍Δ
w ୯७ʹॏͶΔ͚ͩͳΒRelativeΑΓγϯϓϧ
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FrameLayout
LinearLayout
(vertical)
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͍Ζ͍Ζͳ7JFX
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༷ʑͳ7JFX
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w 7JFXʹΑ͍ͬͯΖ͍Ζͳଐੑ͕͋Δ
w දతͳͷΛհ͠·͢
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͍Ζ͍Ζͳଐੑ
• android:text / textColor / textSize
w จࣈྻɾจࣈ৭ɾจࣈαΠζΛࢦఆ
• android:background
w എܠͷ৭ը૾Λࢦఆ
• android:hint
w &EJU5FYUʹจࣈΛೖΕΔલͷώϯτΛઃఆ
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͍Ζ͍Ζͳଐੑ
• android:enabled
w ϘλϯͰΫϦοΫͰ͖Δ͔Ͳ͏͔ͳͲ
• ଞʹ͍Ζ͍Ζ͋Δ
• ࣮ࣗͰ࡞ΕΔ
• ͍͍ͨ࣌ʹௐ͍͖ͯ·͠ΐ͏