20170127 用Intent啟動相機

//20170127 劉彥廷
//用Intent啟動相機

Mainactivity.java

package com.example.user.myapplication47;

import android.app.Activity;
import android.content.Intent;
import android.graphics.Bitmap;
import android.provider.MediaStore;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.ImageView;
import android.widget.Toast;

public class MainActivity extends AppCompatActivity {

    Bitmap bmp;
    ImageView imv;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
    }

    public  void  onGet(View v){
        Intent it = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
        startActivityForResult(it,100);

    }
    protected void onActivityResult(int requestCode,int resultCode,
                                    Intent data){
        super.onActivityResult(requestCode,resultCode,data);
        if(resultCode== Activity.RESULT_OK && requestCode==100){
            Bundle extras = data.getExtras(); //將Intent的附加資料轉為Bundle

           bmp = (Bitmap)extras.get("data");// 由Bundle取出名為"data"的Bitmap資料

           imv =(ImageView)findViewById(R.id.imageView1);

            imv.setImageBitmap(bmp); //將Bitmap資料顯示在ImageView中
        }
        else {
            Toast.makeText(this,"沒有拍到照片",Toast.LENGTH_LONG).show();
        }
    }

}

activity_main.xml

<?xml version="1.0" encoding="utf-8"?>

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"

    xmlns:tools="http://schemas.android.com/tools"

    android:id="@+id/activity_main"

    android:layout_width="match_parent"

    android:layout_height="match_parent"

    android:paddingBottom="@dimen/activity_vertical_margin"

    android:paddingLeft="@dimen/activity_horizontal_margin"

    android:paddingRight="@dimen/activity_horizontal_margin"

    android:paddingTop="@dimen/activity_vertical_margin"

    tools:context="com.example.user.myapplication47.MainActivity"

    android:orientation="vertical">

    <Button

        android:layout_width="match_parent"

        android:layout_height="wrap_content"

        android:id="@+id/button1"

        android:onClick="onGet"

        android:text="@string/pic" />

    <ImageView

        android:layout_width="match_parent"

        android:id="@+id/imageView1"

        android:scaleType="centerInside"

        android:layout_height="match_parent"

        android:adjustViewBounds="false"

        android:cropToPadding="false" />

</LinearLayout>

strings.xml

<resources>

    <string name="app_name">EZ照相機(No47)</string>

    <string name="pic">拍照</string>

</resources>