{"id":300,"date":"2018-12-23T21:29:09","date_gmt":"2018-12-23T12:29:09","guid":{"rendered":"https:\/\/dalomo.net\/blog\/?p=300"},"modified":"2018-12-23T21:30:23","modified_gmt":"2018-12-23T12:30:23","slug":"androidstudio%e3%81%a7%e3%83%87%e3%83%bc%e3%82%bf%e3%83%99%e3%83%bc%e3%82%b9%e3%82%92%e4%bd%bf%e3%81%a3%e3%81%a6%e3%81%bf%e3%81%9f%e3%81%84bmi%e8%a8%88%e7%ae%97","status":"publish","type":"post","link":"https:\/\/dalomo.net\/blog\/2018\/12\/23\/300\/","title":{"rendered":"AndroidStudio\u3067\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u3092\u4f7f\u3063\u3066\u307f\u305f\u3044&BMI\u8a08\u7b97"},"content":{"rendered":"

SQLite<\/h2>\n

Plugin\u3092\u63a2\u3057\u3066\u3044\u305f\u3089\u3001SQL Android\u3068\u3044\u3046Plugin\u3092\u898b\u3064\u3051\u305f\u3002\u306a\u3093\u304b\u3059\u3054\u3044\u4fbf\u5229\u305d\u3046!\u3068\u601d\u3063\u305f\u306e\u3067\u4f7f\u3063\u3066\u307f\u305f\u304f\u306a\u3063\u305f\u3002\u306e\u3067\u3001RDB\u3092\u4f7f\u3063\u305f\u30a2\u30d7\u30ea\u3092\u4f5c\u3063\u3066\u307f\u305f\u3044\u3002RDB\u306b\u95a2\u3057\u3066\u306f\u3001\u307b\u3068\u3093\u3069\u77e5\u8b58\u304c\u306a\u3044\u3002\u4ed5\u4e8b\u3067\u3061\u3087\u308d\u3063\u3068Access\u3092\u4f7f\u3063\u305f\u3053\u3068\u304c\u3042\u308b\u3051\u3069\u3001\u3059\u3063\u3054\u3044\u7c21\u5358\u306aSQL\u6587\u66f8\u304f\u3050\u3089\u3044\u3067\u3001\u30ea\u30ec\u30fc\u30b7\u30e7\u30f3\u5f35\u3063\u305f\u3053\u3068\u3082\u306a\u3044\u3050\u3089\u3044\u3002\u3067\u304d\u308b\u304b\u306a\u3002\u3067\u304d\u308b\u3060\u308d\u3002\u3064\u3044\u3067\u306b\u3061\u3087\u3053\u3061\u3087\u3053\u4f5c\u3063\u3066\u304f\u3084\u3064\u3082\u4f5c\u308d\u3046\u3002\u751f\u6d3b\u96fb\u5353\u3063\u3066\u540d\u524d\u306b\u3057\u3088\u3046\u3002<\/p>\n

\u3068\u308a\u3042\u3048\u305aBMI\u8a08\u7b97\u6a5f\u3092\u4f5c\u308d\u3046<\/h3>\n

\u305d\u3093\u3067\u305d\u306e\u8a18\u9332\u3092\u4fdd\u5b58\u3059\u308b\u305f\u3081\u306bSQLite\u4f7f\u3048\u3070\u3044\u3044\u3093\u3060\u3002\u305d\u3046\u3057\u3088\u3046\u3002<\/p>\n

\u753b\u9762\u4f5c\u308b<\/h4>\n

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\"\"<\/a><\/p>\n

string.xml<\/h5>\n
<resources>\r\n    <string name=\"app_name\">My Application<\/string>\r\n    <string-array name=\"calc_menu\">\r\n        <item>BMI\u8a08\u7b97<\/item>\r\n        <item>\u65e5\u6570\u8a08\u7b97<\/item>\r\n        <item>\u73fe\u5e74\u9f62<\/item>\r\n        <item>\u6642\u7d66\u7d66\u4e0e\u8a08\u7b97<\/item>\r\n        <item>\u5b50\u4f9b\u306e\u80a5\u6e80<\/item>\r\n        <item>\u6d88\u8cbb\u7a0e<\/item>\r\n        <item>\u6642\u9593\u8a08\u7b97<\/item>\r\n        <item>\u9069\u6b63\u30fb\u7f8e\u5bb9\u30fb\u30e2\u30c7\u30eb\u4f53\u91cd<\/item>\r\n        <item>\u5e95\u8fba\u3068\u9ad8\u3055\u304b\u3089\u89d2\u5ea6\u3068\u659c\u8fba\u3092\u8a08\u7b97<\/item>\r\n        <item>\u5b50\u4f9b\u306e\u8eab\u9577\u4e88\u6e2c<\/item>\r\n    <\/string-array>\r\n<\/resources><\/pre>\n
activity_main.xml<\/h5>\n
<ListView\r\n    android:layout_width=\"match_parent\"\r\n    android:layout_height=\"match_parent\"\r\n    android:entries=\"@array\/calc_menu\"\/><\/pre>\n
\u3067\u3001\u4e00\u756a\u6700\u521d\u306e\u753b\u9762\u304c\u3067\u304d\u305f\u3002\u3068\u308a\u3042\u3048\u305aBMI\u3068\u3044\u3046\u3053\u3068\u3067\u305d\u3063\u3061\u306eActivity\u306e\u753b\u9762\u3092\u4f5c\u308b\u3002<\/p>\n
\"\"<\/a><\/p>\n
\u307e\u3001\u3066\u304d\u3068\u30fc\u306b\u3002<\/p>\n
\u30ea\u30b9\u30c8\u3092\u30af\u30ea\u30c3\u30af\u3057\u305f\u3089BMI\u306b\u98db\u3076\u3088\u3046\u306b\u3059\u308b<\/h4>\n
ListItemClickListener<\/h5>\n
private class ListItemClickListener implements AdapterView.OnItemClickListener {\r\n    @Override\r\n    public void onItemClick(AdapterView<?> parent, View v, int position, long id) {\r\n        Intent intent;\r\n\r\n        switch (position) {\r\n            case (0):\r\n                intent = new Intent(LifeCalcActivity.this, BMIActivity.class);\r\n                startActivity(intent);\r\n                break;\r\n\r\n            case (1):\r\n\r\n                break;\r\n        }\r\n    }\r\n}<\/pre>\n
\u3046\u30fc\u3093\u3068\u3001AdapterView\u304cListView\u3001View\u304cListView\u306eView(\u3053\u306e\u5834\u5408TextView\u304c\u53d6\u308c\u3066\u308b\u3002string_array\u304b\u3089\u3060\u304b\u3089\u304b\u306a?)\u3001position\u304c\u884c\u756a\u53f7\u3001id\u304c\u2026\u306a\u3093\u306eid\u3060\u308d\u3053\u308c\u3002\u307e\u3001\u3044\u3044\u3084\u3002\u3068\u308a\u3042\u3048\u305aposition\u3067switch\u3057\u3066\u307f\u305f\u3002<\/p>\n
onCreate\u5185<\/h5>\n
ListView listView = findViewById(R.id.calc_menu);\r\nlistView.setOnItemClickListener(new ListItemClickListener());<\/pre>\n
\u3093\u3067\u3001\u30ea\u30b9\u30ca\u306e\u8a2d\u5b9a\u3002<\/p>\n
BMI\u8a08\u7b97<\/h4>\n
\u753b\u9762\u306e\u51e6\u7406\u8272\u3005<\/h5>\n
android:focusable=\"true\"\r\nandroid:focusableInTouchMode=\"true\"<\/pre>\n
\u6700\u521d\u753b\u9762\u4f5c\u3063\u305f\u969b\u3001\u8eab\u9577\u6b04\u306b\u30d5\u30a9\u30fc\u30ab\u30b9\u304c\u5f53\u305f\u3063\u3066\u305f\u306e\u3067\u3001TextView\u306b\u30d5\u30a9\u30fc\u30ab\u30b9\u3092\u8a2d\u5b9a\u3057\u3066EditText\u306e\u30d5\u30a9\u30fc\u30ab\u30b9\u3092\u5916\u3059\u3002<\/p>\n
android:hint=\"@string\/body_height\"<\/pre>\n
\u5165\u529b\u8aac\u660e\u7528\u306bText\u3092\u5165\u529b\u3057\u3068\u3044\u305f\u3089\u3001\u30d5\u30a9\u30fc\u30ab\u30b9\u3057\u3066\u3082\u6b8b\u3063\u3066\u308b\u306e\u3067\u306a\u3093\u3058\u3083\u3053\u308a\u3083\u3001\u3068\u601d\u3063\u305f\u3089android:hint\u306b\u8a2d\u5b9a\u3059\u308b\u3093\u3060\u3063\u305f\u307f\u305f\u3044\u3002<\/p>\n
android:inputType=\"numberDecimal\"<\/pre>\n
\u30ad\u30fc\u30dc\u30fc\u30c9\u304c\u6587\u5b57\u5165\u529b\u3067\u51fa\u3066\u304f\u308b\u306e\u3067\u3001\u6570\u5b57\u5165\u529b\u306b\u3059\u308b\u3002\u3053\u308c\u3067\u5165\u529b\u5236\u9650\u3082\u3067\u304d\u308b\u307f\u305f\u3044\u3002<\/p>\n
\u5165\u529b\u7d42\u4e86\u6642\u306b\u30d5\u30a9\u30fc\u30ab\u30b9\u304c\u5f53\u305f\u308a\u3063\u3071\u306a\u306e\u304c\u6c17\u306b\u98df\u308f\u306a\u3044\u3051\u3069\u3001\u6539\u5584\u65b9\u6cd5\u304c\u5206\u304b\u3089\u3093\u306e\u3067\u307b\u3063\u3068\u304f\u3002<\/p>\n
\u8a08\u7b97\u3059\u308b<\/h5>\n
\u96fb\u5353\u4f5c\u3063\u305f\u3068\u304d\u306b\u898b\u306a\u304b\u3063\u305f\u3053\u3068\u306b\u3057\u305fBigDesimal\u3092\u4f7f\u3063\u3066\u307f\u308b\u3002<\/p>\n
EditText etHeight;\r\nEditText etWeight;\r\nTextView tvResult;<\/pre>\n
public void onClickCalc(View v) {\r\n    String result;\r\n\r\n    etHeight = findViewById(R.id.editTextHeight);\r\n    etWeight = findViewById(R.id.editTextWeight);\r\n    tvResult = findViewById(R.id.result_textView);\r\n\r\n    BigDecimal valueHeight = new BigDecimal(etHeight.getText().toString());\r\n    BigDecimal valueWeight = new BigDecimal(etWeight.getText().toString());\r\n\r\n    valueHeight = valueHeight.scaleByPowerOfTen(-2).pow(2);\r\n    result = valueWeight.divide(valueHeight, 2, RoundingMode.HALF_UP).toPlainString();\r\n\r\n    tvResult.setText(\"\u3042\u306a\u305f\u306eBMI\u306f\u2026\" + \"\\n\" + result);\r\n\r\n}<\/pre>\n
\u3053\u3093\u306a\u3002\u82e5\u5e72\u3081\u3093\u3069\u304f\u305b\u3047\u306a\u3002<\/p>\n