ZCSDK/CameraDemo

MainActivity 图片选择和拍照

使用方法

在build.gradle文件中添加远程依赖：

compile 'com.sobot.camera:camera_tools:1.2'

在MainActivity的布局文件中添加以下view

<LinearLayout
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:orientation="horizontal"
    android:weightSum="2">

    <Button
        android:id="@+id/btn_take_picture"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_weight="1"
        android:text="相册" />

    <Button
        android:id="@+id/btn_take_picture_camera"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_weight="1"
        android:text="相机" />
</LinearLayout>

<TextView
    android:text="上面从相册或者相机获取的图片会显示在线面ImageView上"
    android:layout_width="match_parent"
    android:layout_height="wrap_content" />

<ImageView
    android:id="@+id/camera_demo_imageView"
    android:layout_width="match_parent"
    android:layout_height="200dp" />

在MainActivity类中添加以下五个属性

private ImageView imgView;//用来显示  获取到的图片或者拍照的图片

protected boolean has_camera_permission = false;//是否有使用相机权限
protected boolean has_write_external_storage_permission = false;//是否有存储权限

//申请权限的code
int SOBOT_CAMERA_REQUEST_CODE = 191;
int SOBOT_WRITE_EXTERNAL_STORAGE_REQUEST_CODE = 192;

在MainActivity的onCreate方法中添加以下代码

    has_camera_permission = checkPermission(this, Manifest.permission.CAMERA, SOBOT_CAMERA_REQUEST_CODE);
    has_write_external_storage_permission = checkPermission(this, Manifest.permission.WRITE_EXTERNAL_STORAGE, SOBOT_WRITE_EXTERNAL_STORAGE_REQUEST_CODE);
    if (!has_camera_permission || !has_write_external_storage_permission) {
        return;
    }

    imgView = findViewById(R.id.camera_demo_imageView);
    findViewById(R.id.btn_take_picture).setOnClickListener(new OnClickListener() {
        @Override
        public void onClick(View v) {
            CameraUtils.selectPicFromLocal(MainActivity.this);
        }
    });

    findViewById(R.id.btn_take_picture_camera).setOnClickListener(new OnClickListener() {
        @Override
        public void onClick(View v) {
            CameraUtils.selectPicFromCamera(MainActivity.this);
        }
    });

在MainActivity类中添加以下两个方法

/**
 * 检查6.0 动态权限
 * @param act activity
 * @param type 权限类型
 * @param code 返回码
 * @return 是否有权限
 */
public static boolean checkPermission(Activity act, String type, int code){
    boolean isPermission;
    if(getTargetSdkVersion(act.getApplicationContext()) >= 23){
        if (ContextCompat.checkSelfPermission(act, type)
                != PackageManager.PERMISSION_GRANTED) {
            isPermission=false;
            //申请权限
            ActivityCompat.requestPermissions(act, new String[]{type}, code);
        } else {
            isPermission = true;
        }
    } else {
        isPermission = true;
    }
    return isPermission;
}

//获取当前版本targetSdkVersion
public static int getTargetSdkVersion(Context context){
    int targetSdkVersion = 0;
    try {
        final PackageInfo info = context.getPackageManager().getPackageInfo(
                context.getPackageName(), 0);
        targetSdkVersion = info.applicationInfo.targetSdkVersion;
    } catch (PackageManager.NameNotFoundException e) {
        e.printStackTrace();
    }
    return targetSdkVersion;
}

在MainActivity类中重写onActivityResult(int requestCode, int resultCode, Intent data)

@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
    super.onActivityResult(requestCode, resultCode, data);
    Log.i("多媒体返回的结果-------", requestCode + "==========" + resultCode + "========" + data);
    if (resultCode == RESULT_OK) {
        if (requestCode == CameraUtils.REQUEST_CODE_picture) { // 发送本地图片
            if (data != null && data.getData() != null) {
                imgView.setImageURI(data.getData());//把图片设置到ImageView上
                Uri selectedImage = data.getData();
                // 通知handler更新图片
                Log.i("本地文件路径----", selectedImage.getPath());
            } else {
                Log.i("本地文件路径----", "没有");
            }
        } else if (requestCode == CameraUtils.REQUEST_CODE_makePictureFromCamera) {
            if (CameraUtils.cameraFile != null && CameraUtils.cameraFile.exists()) {
                imgView.setImageURI(Uri.fromFile(CameraUtils.cameraFile));
                Log.i("拍照文件---------", CameraUtils.cameraFile.getPath());
            } else {
                Log.i("拍照文件---------", "没有");
            }
        }
    }
}