Fragment 基礎
package com.advanced_android.fragmenttransactionsample;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentManager;
import android.support.v7.app.AppCompatActivity;
import android.util.Log;
import android.view.View;
public class MainActivity extends AppCompatActivity {
private static final String FRAGMENT_TAG = "FRAGMENT_TAG";
private static final String KEY_NUMBER = "KEY_NUMBER";
private int mNumber = 0;
private FragmentManager.OnBackStackChangedListener mListener = new FragmentManager.OnBackStackChangedListener() {
@Override
public void onBackStackChanged() {
FragmentManager fragmentManager = getSupportFragmentManager();
int count = 0;
for (Fragment f : fragmentManager.getFragments()) {
if (f != null) {
count++;
}
}
mNumber = count;
Log.d("MainActivity", "onBackStackChanged mNumber=" + mNumber);
}
};
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
findViewById(R.id.add_button).setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
FragmentManager fragmentManager = getSupportFragmentManager();
fragmentManager.beginTransaction()
.add(R.id.fragment_container, MyFragment.getInstance(mNumber))
.addToBackStack(null)
.commit();
}
});
findViewById(R.id.remove_button).setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
if (mNumber == 0) {
return;
}
FragmentManager fragmentManager = getSupportFragmentManager();
fragmentManager.popBackStack();
}
});
FragmentManager fragmentManager = getSupportFragmentManager();
fragmentManager.addOnBackStackChangedListener(mListener);
Fragment fragment = fragmentManager.findFragmentByTag(FRAGMENT_TAG);
Log.d("MainActivity", "onCreate fragment=" + fragment + ", mNumber=" + mNumber);
if (savedInstanceState == null) {
fragmentManager.beginTransaction()
.add(R.id.fragment_container, MyFragment.getInstance(mNumber), FRAGMENT_TAG)
.addToBackStack(null)
.commit();
}
}
@Override
protected void onDestroy() {
super.onDestroy();
FragmentManager fragmentManager = getSupportFragmentManager();
fragmentManager.removeOnBackStackChangedListener(mListener);
}
@Override
public void onSaveInstanceState(Bundle outState) {
super.onSaveInstanceState(outState);
outState.putInt(KEY_NUMBER, mNumber);
}
@Override
protected void onRestoreInstanceState(Bundle savedInstanceState) {
super.onRestoreInstanceState(savedInstanceState);
mNumber = savedInstanceState.getInt(KEY_NUMBER);
}
}
package com.advanced_android.fragmenttransactionsample;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.TextView;
public class MyFragment extends Fragment {
private static final String ARG_NO = "ARG_NO";
public MyFragment() {
}
public static MyFragment getInstance(int no) {
MyFragment fragment = new MyFragment();
Bundle args = new Bundle();
args.putInt(ARG_NO, no);
fragment.setArguments(args);
return fragment;
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
return inflater.inflate(R.layout.fragment_my, container, false);
}
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
int no = getArguments().getInt(ARG_NO, 0);
String text = "" + no + "番目のFragment";
Log.d("MyFragment", "onCreate " + text);
}
@Override
public void onViewCreated(View view, Bundle savedInstanceState) {
super.onViewCreated(view, savedInstanceState);
TextView textView = (TextView) view.findViewById(R.id.text);
int no = getArguments().getInt(ARG_NO, 0);
String text = "" + no + "番目のFragment";
Log.d("MyFragment", "onViewCreated " + text);
textView.setText(text);
}
}
CircleIndicator を ViewPager の最下部に置く
<RelativeLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context="com.makaroni.circleviewpagertest.MainActivity"
>
<android.support.v4.view.ViewPager
android:id="@+id/viewpager"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
/>
<me.relex.circleindicator.CircleIndicator
android:id="@+id/indicator"
android:layout_width="match_parent"
android:layout_alignBottom="@+id/viewpager"
android:layout_height="50sp"
android:layout_marginBottom="50sp"
app:ci_drawable="@drawable/circle"
app:ci_height="10sp"
app:ci_width="10sp"
/>
</RelativeLayout>
Unity Button OnClick処理
例はボタンを押したら残機を増やす処理
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.UI;
public class IncrementZankiController : MonoBehaviour {
public Text text;
public Image heart1;
public Image heart2;
public Image heart3;
public void IncrementLife(){
Sprite image = Resources.Load<Sprite> ("heart_full");
int life = int.Parse (text.text);
if (life == 0) {
heart1.sprite = image;
life++;
} else if (life == 1) {
heart2.sprite = image;
life++;
} else if (life == 2) {
heart3.sprite = image;
life++;
}
text.text = life.ToString ();
}
}
ダイアログにEditView表示して、内容をクリップボードにコピー
@OnClick(R.id.btn)
void buttonOnClick(View v) {
//テキスト入力を受け付けるビューを作成します。
final EditText editView = new EditText(MainActivity.this);
editView.setText("hogehoge");
new AlertDialog.Builder(MainActivity.this)
.setIcon(android.R.drawable.ic_dialog_info)
.setTitle("タイトル")
.setView(editView)
.setPositiveButton("コピー", new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int whichButton) {
CopyClipBoard(editView.getText().toString());
}
})
.setNegativeButton("キャンセル", new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int whichButton) {
}
})
.show();
}
public void CopyClipBoard(String text) {
SetClipData(text);
}
private void SetClipData(String allText) {
try {
ClipData.Item item = new ClipData.Item(allText);
String[] mimeType = new String[1];
mimeType[0] = ClipDescription.MIMETYPE_TEXT_URILIST;
ClipData cd = new ClipData(new ClipDescription("text_data", mimeType), item);
ClipboardManager cm = (ClipboardManager) getSystemService(CLIPBOARD_SERVICE);
cm.setPrimaryClip(cd);
}
catch(Exception e) {
e.printStackTrace();
}
}
Android リストビュー
public class MainActivity extends AppCompatActivity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
ListView myListView = (ListView) findViewById(R.id.myListView);
ArrayList<User> users = new ArrayList<>();
int[] icons = {
R.mipmap.ic_launcher,
R.mipmap.ic_launcher,
R.mipmap.ic_launcher,
};
String[] names = {
"maroni1",
"maroni2",
"maroni3",
};
String[] locs = {
"US",
"UK",
"JP",
};
for (int i = 0; i < icons.length; i++) {
User user = new User();
user.setIcon(BitmapFactory.decodeResource(
getResources(),
icons[i]
));
user.setName(names[i]);
user.setLocation(locs[i]);
users.add(user);
}
UserAdapter adapter = new UserAdapter(this, 0, users);
// for (int i = 0; i < 30; i++) {
// items.add("item-" + i);
// }
//
// ArrayAdapter<String> adapter = new ArrayAdapter<String>(
// this,
// R.layout.list_item,
// items
// );
//
myListView.setEmptyView(findViewById(R.id.emptyView));
myListView.setAdapter(adapter);
myListView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
@Override
public void onItemClick(
AdapterView<?> parent,
View view,
int position,
long id
) {
TextView name = (TextView)view.findViewById(R.id.name);
Toast.makeText(
MainActivity.this,
Integer.toString(position) + ":" + name.getText().toString(),
Toast.LENGTH_SHORT
).show();
}
});
}
public class UserAdapter extends ArrayAdapter<User> {
private LayoutInflater layoutInflater;
public UserAdapter(Context context, int resource, ArrayList<User> users) {
super(context, resource, users);
this.layoutInflater = (LayoutInflater) context.getSystemService(
Context.LAYOUT_INFLATER_SERVICE
);
}
@NonNull
@Override
public View getView(int position, View convertView, ViewGroup parent) {
ViewHolder holder;
if (convertView == null) {
convertView = layoutInflater.inflate(
R.layout.list_item,
parent,
false
);
holder = new ViewHolder();
holder.icon = (ImageView) convertView.findViewById(R.id.icon);
holder.name = (TextView) convertView.findViewById(R.id.name);
holder.location = (TextView) convertView.findViewById(R.id.loc);
convertView.setTag(holder);
} else {
holder = (ViewHolder) convertView.getTag();
}
User user = (User) getItem(position);
holder.icon.setImageBitmap(user.getIcon());
holder.name.setText(user.getName());
holder.location.setText(user.getLocation());
return convertView;
}
}
static class ViewHolder {
ImageView icon;
TextView name;
TextView location;
}
public class User {
private Bitmap icon;
private String name;
private String location;
public Bitmap getIcon() {
return icon;
}
public void setIcon(Bitmap icon) {
this.icon = icon;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getLocation() {
return location;
}
public void setLocation(String location) {
this.location = location;
}
}
}
Keras で ORの学習
import numpy as np
import keras
from keras.utils import np_utils
from keras.models import Sequential
from keras.layers import Dense
model = Sequential()
model.add(Dense(input_dim=2, activation='relu', units=1))
model.compile(loss='mean_squared_error', optimizer='sgd', metrics=['accuracy'])
# データセット
x_train = [
[0, 0],
[0, 1],
[1, 0],
[1, 1],
]
# 正解ラベル
y_train = [[0],[1],[1],[1]]
model.fit(x_train, y_train, nb_epoch=10, batch_size=1)
score = model.evaluate(x_train, y_train, verbose=0)
print("test-accuracy: {}".format(score[1]))
シンプルなmnist (python3.5 chainer)
import chainer
import chainer.functions as F
import chainer.links as L
from chainer import training
from chainer.training import extensions
class MnistModel(chainer.Chain):
def __init__(self, out_units):
super(MnistModel,self).__init__(
l1 = L.Linear(None, 100),
l2 = L.Linear(None, 100),
l3 = L.Linear(None, out_units))
def __call__(self,x):
h = F.relu(self.l1(x))
h = F.relu(self.l2(h))
return self.l3(h)
model = L.Classifier(MnistModel(out_units=10))
optimizer = chainer.optimizers.Adam()
optimizer.setup(model)
train, test = chainer.datasets.get_mnist()
train_iter = chainer.iterators.SerialIterator(train, 100)
test_iter = chainer.iterators.SerialIterator(test, 100,repeat=False, shuffle=False)
updater = training.StandardUpdater(train_iter, optimizer, device=-1)
trainer = training.Trainer(updater, (100, 'epoch'), out="result")
trainer.extend(extensions.Evaluator(test_iter, model, device=-1))
trainer.extend(extensions.LogReport())
trainer.extend(extensions.PrintReport(['epoch', 'main/loss', 'validation/main/loss', 'main/accuracy', 'validation/main/accuracy']))
trainer.extend(extensions.ProgressBar())
if extensions.PlotReport.available():
trainer.extend(
extensions.PlotReport(['main/loss', 'validation/main/loss'], 'epoch', file_name='loss.png'))
trainer.extend(
extensions.PlotReport(
['main/accuracy', 'validation/main/accuracy'], 'epoch', file_name='accuracy.png'))
trainer.run()
