第一行代碼Android學習（九）

第一行代碼Android學習：第九部分主要涉及到通知、接收和發送短信、調用攝像頭和相冊

1.通知DYHDM_08_00NotificationTest

MainActivity.java

package com.example.dyhdm_08_00notificationtest;

import android.app.Activity;
import android.app.Notification;
import android.app.NotificationManager;
import android.app.PendingIntent;
import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;

/**
 * TODO 發送通知
 * @author  張志安
 * @date:  2016-8-16 下午5:42:40
 */
public class MainActivity extends Activity {

    private Button bt_notify;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        bt_notify = (Button) findViewById(R.id.bt_notify);
        bt_notify.setOnClickListener(new OnClickListener() {

            @Override
            public void onClick(View v) {
                // 獲取NotificationManager實例
                NotificationManager manager = (NotificationManager) getSystemService(NOTIFICATION_SERVICE);
                //創建一個Notification對象，存儲通知所需要的各種信息
                Notification notification = new Notification(
                        R.drawable.ic_launcher, "hello zza", System
                                .currentTimeMillis());
                // 構建一個PendingIntentc傳入setLatestEventInfo()的第四個參數，可以傳null
                Intent intent = new Intent(MainActivity.this,
                        SecondActivity.class);
                PendingIntent pi = PendingIntent.getActivity(MainActivity.this,
                        0, intent, PendingIntent.FLAG_CANCEL_CURRENT);
                // 對通知的布局進行設定
                notification.setLatestEventInfo(MainActivity.this, "Zza",
                        "Hello", pi);
                manager.notify(1, notification);
            }
        });
    }

}

SecondActivity.java

package com.example.dyhdm_08_00notificationtest;

import android.os.Bundle;
import android.app.Activity;
import android.app.NotificationManager;
import android.view.Menu;

public class SecondActivity extends Activity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_second);
        //取消通知
        NotificationManager manager = (NotificationManager)getSystemService(NOTIFICATION_SERVICE);
        manager.cancel(1);
    }

}

2.接收和發送短信DYHDM_08_01SMSTest

activity_main.xml

MainActivity.java

package com.example.dyhdm_08_01smstest;

import android.app.Activity;
import android.app.PendingIntent;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.content.IntentSender.SendIntentException;
import android.os.Bundle;
import android.telephony.gsm.SmsManager;
import android.telephony.gsm.SmsMessage;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TextView;
import android.widget.Toast;

public class MainActivity extends Activity {

    private TextView sender;
    private TextView content;

    private IntentFilter receiveFilter;
    private MessageReceiver messageReceiver;

    private EditText to;
    private EditText msgInput;
    private Button send;

    private IntentFilter sendFilter;
    private SendStatusReceiver sendStatusReceiver;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        sender = (TextView) findViewById(R.id.tv_send);
        content = (TextView) findViewById(R.id.tv_content);
        // 接收短信的廣播接收者
        // 動態注冊廣播接收器
        receiveFilter = new IntentFilter();
        receiveFilter.addAction("android.provider.Telephony.SMS_RECEIVED");
        // receiveFilter.setPriority(100);
        messageReceiver = new MessageReceiver();
        registerReceiver(messageReceiver, receiveFilter);
        // 發送短信的廣播接收者
        sendFilter = new IntentFilter();
        sendFilter.addAction("SENT_SMS_ACTION");
        sendStatusReceiver = new SendStatusReceiver();
        registerReceiver(sendStatusReceiver, sendFilter);
        // 發送短信
        to = (EditText) findViewById(R.id.et_to);
        msgInput = (EditText) findViewById(R.id.et_msg);
        send = (Button) findViewById(R.id.bt_send);
        send.setOnClickListener(new OnClickListener() {

            @Override
            public void onClick(View v) {
                SmsManager smsManager = SmsManager.getDefault();
                Intent sendIntent = new Intent("SENT_SMS_ACTION");
                PendingIntent pi = PendingIntent.getBroadcast(
                        MainActivity.this, 0, sendIntent, 0);
                smsManager.sendTextMessage(to.getText().toString(), null,
                        msgInput.getText().toString(), pi, null);
            }
        });
    }

    // 接收信息的廣播接收者
    class MessageReceiver extends BroadcastReceiver {

        /**
         * 重載方法
         */
        @Override
        public void onReceive(Context context, Intent intent) {
            Bundle bundle = intent.getExtras();
            Object[] pdus = (Object[]) bundle.get("pdus");// 提取短信消息
            SmsMessage[] messages = new SmsMessage[pdus.length];
            for (int i = 0; i < messages.length; i++) {
                messages[i] = SmsMessage.createFromPdu((byte[]) pdus[i]);
                String address = messages[0].getOriginatingAddress();// 獲取發送方號碼
                String fullMessage = "";
                for (SmsMessage smsMessage : messages) {
                    fullMessage += smsMessage.getMessageBody();// 獲取短信內容
                }
                sender.setText(address);
                content.setText(fullMessage);
                // 可攔截系統收到短信
                // abortBroadcast();
            }
        }

    }

    // 接收短信發送
    class SendStatusReceiver extends BroadcastReceiver {

        /**
         * 重載方法
         */
        @Override
        public void onReceive(Context context, Intent intent) {
            if (getResultCode() == RESULT_OK) {
                Toast.makeText(context, "發送成功", Toast.LENGTH_SHORT).show();
            } else {
                Toast.makeText(context, "發送失敗", Toast.LENGTH_SHORT).show();
            }
        }

    }

    /**
     * 重載方法
     */
    @Override
    protected void onDestroy() {
        super.onDestroy();
        unregisterReceiver(messageReceiver);
        unregisterReceiver(sendStatusReceiver);
    }
}

3.調用攝像頭和相冊DYHDM_08_02ChoosePicTest

activity_main.xml

MainActivity.java

package com.example.dyhdm_08_02choosepictest;

import java.io.File;

import android.app.Activity;
import android.content.Intent;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.graphics.Picture;
import android.net.Uri;
import android.os.Bundle;
import android.os.Environment;
import android.provider.MediaStore;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.ImageView;

public class MainActivity extends Activity {

    public static final int TAKE_PHONE = 1;
    public static final int CROP_PHONE = 2;
    private Button bt_take_phone;
    private Button bt_choose_phone;
    private ImageView iv_phone;
    private Uri imageUri;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        bt_take_phone = (Button) findViewById(R.id.bt_take_phone);
        iv_phone = (ImageView) findViewById(R.id.iv_picture);
        bt_take_phone.setOnClickListener(new OnClickListener() {

            @Override
            public void onClick(View v) {
                // 創建File對象，存儲拍下的圖片
                // 存儲在手機的sd卡根目錄下
                // Environment.getExternalStorageDirectory()獲取sd卡的根目錄
                File outputImage = new File(Environment
                        .getExternalStorageDirectory(), "temp.jpg");
                try {
                    if (outputImage.exists()) {
                        outputImage.delete();
                    }
                    outputImage.createNewFile();
                } catch (Exception e) {
                    e.printStackTrace();
                }
                // Uri.fromFile()將File對象轉換為Uri對象
                imageUri = Uri.fromFile(outputImage);
                // 拍照
                Intent intent = new Intent("android.media.action.IMAGE_CAPTURE");
                intent.putExtra(MediaStore.EXTRA_OUTPUT, imageUri);
                startActivityForResult(intent, TAKE_PHONE);
            }
        });
        bt_choose_phone = (Button) findViewById(R.id.bt_choose_phone);
        bt_choose_phone.setOnClickListener(new OnClickListener() {

            @Override
            public void onClick(View v) {
                File outputImage = new File(Environment
                        .getExternalStorageDirectory(), "output_image.jpg");
                try {
                    if (outputImage.exists()) {
                        outputImage.delete();
                    }
                    outputImage.createNewFile();
                } catch (Exception e) {
                    e.printStackTrace();
                }

                imageUri = Uri.fromFile(outputImage);
                // 拍照  有問題 華為點擊照片後無法獲取，三星好用
                Intent intent = new Intent("android.intent.action.GET_CONTENT");
                intent.setType("image/*");
                intent.putExtra("crop", true);
                intent.putExtra("scale", true);
                intent.putExtra(MediaStore.EXTRA_OUTPUT, imageUri);
                startActivityForResult(intent, CROP_PHONE);
            }
        });
    }

    /**
     * 重載方法
     */
    @Override
    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
        switch (requestCode) {
        case TAKE_PHONE:
            if (resultCode == RESULT_OK) {
                // 裁剪
                Intent intent = new Intent("com.android.camera.action.CROP");
                intent.setDataAndType(imageUri, "image/*");
                intent.putExtra("scale", true);
                intent.putExtra(MediaStore.EXTRA_OUTPUT, imageUri);
                startActivityForResult(intent, CROP_PHONE);
            }
            break;
        case CROP_PHONE:
            if (resultCode == RESULT_OK) {
                try {
                    Bitmap bitmap = BitmapFactory
                            .decodeStream(getContentResolver().openInputStream(
                                    imageUri));
                    iv_phone.setImageBitmap(bitmap);
                } catch (Exception e) {
                    e.printStackTrace();
                }
            }
            break;
        default:
            break;
        }
    }
}