自定義適配器與電話功能

MyAdapter自定義適配器：

        //具體方法如下：

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     protected void onCreate(Bundle savedInstanceState) {

            super.onCreate(savedInstanceState);

            setContentView(R.layout.activity_main);

            // 1,找到控件

            lv = (ListView) findViewById(R.id.lv_list);

            // 2,定義適配器

            // >>>>>>>>>>>>>>>>>>>2.3自定義適配器

            MyAdapter adapter = new MyAdapter();

            // 3,加載適配器

            lv.setAdapter(adapter);

        }

        private class MyAdapter extends BaseAdapter {

        @Override

        public int getCount() {

            // TODO Auto-generated method stub

            return objects.length;

        }

        @Override

        public View getView(int position, View convertView, ViewGroup parent) {

            // 加載布局 activity加載布局

            /*

             * LayoutInflater inflater=getLayoutInflater();

             * inflater.inflate(resource, root);

             */

            View contentView = View.inflate(getApplicationContext(),

            R.layout.list_item, null);

            // 找到布局里面的控件

            ImageView iv = (ImageView) contentView.findViewById(R.id.iv_logo);

            TextView tv = (TextView) contentView.findViewById(R.id.tv_name);

            // 加載相應數據

            iv.setImageResource(imgs[position]);

            tv.setText(objects[position]);

            return contentView;

        }

        @Override

        public Object getItem(int position) {

            // TODO Auto-generated method stub

            return null;

        }

        @Override

        public long getItemId(int position) {

            // TODO Auto-generated method stub

            return 0;

        }

     }

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        撥號功能    

         lv.setOnItemClickListener(new OnItemClickListener() {

            @Override

            public void onItemClick(AdapterView<?> parent, View view,

                int position, long id) {

                //添加意圖

                Intent intent = new Intent();

                //添加動作

                intent.setAction(intent.ACTION_CALL);

                //添加數據

                intent.setData(Uri.parse("tel:"+phones[position]));

                startActivity(intent);

            }

        });

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        短信功能（頁面跳轉）

         lv.setOnItemLongClickListener(new OnItemLongClickListener() {

            @Override

            public boolean onItemLongClick(AdapterView<?> parent, View view,

                int position, long id) {

                  Intent i=new Intent(getApplicationContext(), SmsActivity.class);

                     i.putExtra("number", phones[position]);

                  startActivity(i);

                return true;

            }

        });

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    在用模擬器實現打電話發送短信等功能時需要在運行給它授予權限（授權方法：AndtoidManifest------>Permissions----->Add---->Uses Permission----->選擇要授予的權限---->Ctrl+s），若想實現發短信功能還需要先進行注冊（注冊方法：AndtoidManifest------>AndroidManifesf.xml------>建一個<activity （這里寫入android:name="com.eduask.dialing.類名"）></activity>標簽）

    在寫代碼時常范的錯誤：用LinearLayout時要記得給<LinearLayout設置寬度和高度></LinearLayout>不然將無法顯示寫在LinearLayout中的內容！切記-。-、、！！！