Android圓形頭像設定(實現相機、相簿選擇並裁剪)相容6.0/7.0
阿新 • • 發佈：2019-02-14
Android圓形頭像設定(實現相機、相簿選擇並裁剪)相容Android 7.0/6.0
Android7.0新增了許可權修改、目錄被限制訪問、多視窗 等等，最近在做頭像設定的時候，執行到Android7.0的機子上，拍照和進相簿都報錯：FileUriExposedException，又要進行適配了，先來看一下官方解釋：
下面就是我做的適配方法，僅供參考，有啥問題一起討論解決：
AndroidManifest.xml 增加provider定義
<provider
android:name="android.support.v4.content.FileProvider" 配置XML檔案
在res下建立xml資料夾，並建立filepaths.xml檔案，名字可以自定義
<?xml version="1.0" encoding="utf-8"?>
<paths>
<external-path
name="camera_photos"
path="demo" 圓形ImageView自定義控制元件
/**
* 圓形頭像設定
*/
@SuppressLint("AppCompatCustomView")
public class CircleImageView extends ImageView {
private static final ScaleType SCALE_TYPE = ScaleType.CENTER_CROP;
private static final Bitmap.Config BITMAP_CONFIG = Bitmap.Config.ARGB_8888;
private static final int COLORDRAWABLE_DIMENSION = 2;
private static final int DEFAULT_BORDER_WIDTH = 0;
private static final int DEFAULT_BORDER_COLOR = Color.BLACK;
private final RectF mDrawableRect = new RectF();
private final RectF mBorderRect = new RectF();
private final Matrix mShaderMatrix = new Matrix();
private final Paint mBitmapPaint = new Paint();
private final Paint mBorderPaint = new Paint();
private int mBorderColor = DEFAULT_BORDER_COLOR;
private int mBorderWidth = DEFAULT_BORDER_WIDTH;
private Bitmap mBitmap;
private BitmapShader mBitmapShader;
private int mBitmapWidth;
private int mBitmapHeight;
private float mDrawableRadius;
private float mBorderRadius;
private boolean mReady;
private boolean mSetupPending;
public CircleImageView(Context context) {
super(context);
init();
}
public CircleImageView(Context context, AttributeSet attrs) {
this(context, attrs, 0);
}
public CircleImageView(Context context, AttributeSet attrs, int defStyle) {
super(context, attrs, defStyle);
TypedArray a = context.obtainStyledAttributes(attrs, R.styleable.CircleImageView1, defStyle, 0);
mBorderWidth = a.getDimensionPixelSize(R.styleable.CircleImageView1_border_width, DEFAULT_BORDER_WIDTH);
mBorderColor = a.getColor(R.styleable.CircleImageView1_border_color, DEFAULT_BORDER_COLOR);
a.recycle();
init();
}
private void init() {
super.setScaleType(SCALE_TYPE);
mReady = true;
if (mSetupPending) {
setup();
mSetupPending = false;
}
}
@Override
public ScaleType getScaleType() {
return SCALE_TYPE;
}
@Override
public void setScaleType(ScaleType scaleType) {
if (scaleType != SCALE_TYPE) {
throw new IllegalArgumentException(String.format("ScaleType %s not supported.", scaleType));
}
}
@Override
public void setAdjustViewBounds(boolean adjustViewBounds) {
if (adjustViewBounds) {
throw new IllegalArgumentException("adjustViewBounds not supported.");
}
}
@Override
protected void onDraw(Canvas canvas) {
if (getDrawable() == null) {
return;
}
canvas.drawCircle(getWidth() / 2, getHeight() / 2, mDrawableRadius, mBitmapPaint);
if (mBorderWidth != 0) {
canvas.drawCircle(getWidth() / 2, getHeight() / 2, mBorderRadius, mBorderPaint);
}
}
@Override
protected void onSizeChanged(int w, int h, int oldw, int oldh) {
super.onSizeChanged(w, h, oldw, oldh);
setup();
}
public int getBorderColor() {
return mBorderColor;
}
public void setBorderColor(int borderColor) {
if (borderColor == mBorderColor) {
return;
}
mBorderColor = borderColor;
mBorderPaint.setColor(mBorderColor);
invalidate();
}
public int getBorderWidth() {
return mBorderWidth;
}
public void setBorderWidth(int borderWidth) {
if (borderWidth == mBorderWidth) {
return;
}
mBorderWidth = borderWidth;
setup();
}
@Override
public void setImageBitmap(Bitmap bm) {
super.setImageBitmap(bm);
mBitmap = bm;
setup();
}
@Override
public void setImageDrawable(Drawable drawable) {
super.setImageDrawable(drawable);
mBitmap = getBitmapFromDrawable(drawable);
setup();
}
@Override
public void setImageResource(int resId) {
super.setImageResource(resId);
mBitmap = getBitmapFromDrawable(getDrawable());
setup();
}
@Override
public void setImageURI(Uri uri) {
super.setImageURI(uri);
mBitmap = getBitmapFromDrawable(getDrawable());
setup();
}
private Bitmap getBitmapFromDrawable(Drawable drawable) {
if (drawable == null) {
return null;
}
if (drawable instanceof BitmapDrawable) {
return ((BitmapDrawable) drawable).getBitmap();
}
try {
Bitmap bitmap;
if (drawable instanceof ColorDrawable) {
bitmap = Bitmap.createBitmap(COLORDRAWABLE_DIMENSION, COLORDRAWABLE_DIMENSION, BITMAP_CONFIG);
} else {
bitmap = Bitmap.createBitmap(drawable.getIntrinsicWidth(), drawable.getIntrinsicHeight(), BITMAP_CONFIG);
}
Canvas canvas = new Canvas(bitmap);
drawable.setBounds(0, 0, canvas.getWidth(), canvas.getHeight());
drawable.draw(canvas);
return bitmap;
} catch (OutOfMemoryError e) {
return null;
}
}
private void setup() {
if (!mReady) {
mSetupPending = true;
return;
}
if (mBitmap == null) {
return;
}
mBitmapShader = new BitmapShader(mBitmap, Shader.TileMode.CLAMP, Shader.TileMode.CLAMP);
mBitmapPaint.setAntiAlias(true);
mBitmapPaint.setShader(mBitmapShader);
mBorderPaint.setStyle(Paint.Style.STROKE);
mBorderPaint.setAntiAlias(true);
mBorderPaint.setColor(mBorderColor);
mBorderPaint.setStrokeWidth(mBorderWidth);
mBitmapHeight = mBitmap.getHeight();
mBitmapWidth = mBitmap.getWidth();
mBorderRect.set(0, 0, getWidth(), getHeight());
mBorderRadius = Math.min((mBorderRect.height() - mBorderWidth) / 2, (mBorderRect.width() - mBorderWidth) / 2);
mDrawableRect.set(mBorderWidth, mBorderWidth, mBorderRect.width() - mBorderWidth, mBorderRect.height() - mBorderWidth);
mDrawableRadius = Math.min(mDrawableRect.height() / 2, mDrawableRect.width() / 2);
updateShaderMatrix();
invalidate();
}
private void updateShaderMatrix() {
float scale;
float dx = 0;
float dy = 0;
mShaderMatrix.set(null);
if (mBitmapWidth * mDrawableRect.height() > mDrawableRect.width() * mBitmapHeight) {
scale = mDrawableRect.height() / (float) mBitmapHeight;
dx = (mDrawableRect.width() - mBitmapWidth * scale) * 0.5f;
} else {
scale = mDrawableRect.width() / (float) mBitmapWidth;
dy = (mDrawableRect.height() - mBitmapHeight * scale) * 0.5f;
}
mShaderMatrix.setScale(scale, scale);
mShaderMatrix.postTranslate((int) (dx + 0.5f) + mBorderWidth, (int) (dy + 0.5f) + mBorderWidth);
mBitmapShader.setLocalMatrix(mShaderMatrix);
}
}然後直接在佈局中使用：
<com.lele.avatarcircledemo.view.CircleImageView
xmlns:app="http://schemas.android.com/apk/res-auto"
android:id="@+id/user_photo"
android:layout_width="60dp"
android:layout_height="60dp"
android:layout_gravity="center"
android:layout_marginRight="12dp"
android:src="@mipmap/avatar"
app:border_color="#ccc" //邊框顏色
app:border_width="2dp" /> //邊框寬度程式碼中直接新增圖片，即可顯示為圓形頭像：
user_photo.setImageBitmap(bitmap);使用相機拍照
/**
* 開啟系統相機
*/
private void openCamera() {
File file = new FileStorage().createIconFile();
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
imageUri = FileProvider.getUriForFile(this, "com.lele.avatarcircledemo.fileprovider", file);//通過FileProvider建立一個content型別的Uri
} else {
imageUri = Uri.fromFile(file);
}
Intent intent = new Intent();
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
intent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION); //新增這一句表示對目標應用臨時授權該Uri所代表的檔案
}
intent.setAction(MediaStore.ACTION_IMAGE_CAPTURE);//設定Action為拍照
intent.putExtra(MediaStore.EXTRA_OUTPUT, imageUri);//將拍取的照片儲存到指定URI
startActivityForResult(intent, CODE_CAMERA_REQUEST);
}裁剪：
/**
* 裁剪
*/
private void cropPhoto() {
File file = new FileStorage().createCropFile();
Uri outputUri = Uri.fromFile(file);//縮圖儲存地址
Intent intent = new Intent("com.android.camera.action.CROP");
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
intent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
}
intent.setDataAndType(imageUri, "image/*");
intent.putExtra("crop", "true");
intent.putExtra("aspectX", 1);
intent.putExtra("aspectY", 1);
intent.putExtra("scale", true);
intent.putExtra("return-data", false);
intent.putExtra(MediaStore.EXTRA_OUTPUT, outputUri);
intent.putExtra("outputFormat", Bitmap.CompressFormat.JPEG.toString());
intent.putExtra("noFaceDetection", true);
startActivityForResult(intent, CODE_RESULT_REQUEST);
}開啟相簿，選擇圖片
/**
* 從相簿選擇
*/
private void selectFromAlbum() {
Intent intent = new Intent(Intent.ACTION_PICK);
intent.setDataAndType(MediaStore.Images.Media.EXTERNAL_CONTENT_URI, "image/*");
startActivityForResult(intent, CODE_GALLERY_REQUEST);
}這裡編輯圖片處理方式區分Android4.4 前後兩種方式：
////////////andoird 4.4以後
@TargetApi(19)
private void handleImageOnKitKat(Intent data) {
imagePath = null;
imageUri = data.getData();
if (DocumentsContract.isDocumentUri(this, imageUri)) {
//如果是document型別的uri,則通過document id處理
String docId = DocumentsContract.getDocumentId(imageUri);
if ("com.android.providers.media.documents".equals(imageUri.getAuthority())) {
String id = docId.split(":")[1];//解析出數字格式的id
String selection = MediaStore.Images.Media._ID + "=" + id;
imagePath = getImagePath(MediaStore.Images.Media.EXTERNAL_CONTENT_URI, selection);
} else if ("com.android.downloads.documents".equals(imageUri.getAuthority())) {
Uri contentUri = ContentUris.withAppendedId(Uri.parse("content://downloads/public_downloads"), Long.valueOf(docId));
imagePath = getImagePath(contentUri, null);
}
} else if ("content".equalsIgnoreCase(imageUri.getScheme())) {
//如果是content型別的Uri，則使用普通方式處理
imagePath = getImagePath(imageUri, null);
} else if ("file".equalsIgnoreCase(imageUri.getScheme())) {
//如果是file型別的Uri,直接獲取圖片路徑即可
imagePath = imageUri.getPath();
}
cropPhoto();
}
////////////andoird 4.4之前
private void handleImageBeforeKitKat(Intent intent) {
imageUri = intent.getData();
imagePath = getImagePath(imageUri, null);
cropPhoto();
}
onActivityForResult中接收
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
switch (requestCode) {
case CODE_GALLERY_REQUEST: // 相簿
if (Build.VERSION.SDK_INT >= 19) {
handleImageOnKitKat(data);
} else {
handleImageBeforeKitKat(data);
}
break;
case CODE_CAMERA_REQUEST: //拍照
if (hasSdcard()) {
if (resultCode == RESULT_OK) {
cropPhoto();
}
} else {
Toast.makeText(this, "沒有SDCard!", Toast.LENGTH_LONG)
.show();
}
break;
case CODE_RESULT_REQUEST:
Bitmap bitmap = null;
try {
if (isClickCamera) {
bitmap = BitmapFactory.decodeStream(getContentResolver().openInputStream(imageUri));
} else {
bitmap = BitmapFactory.decodeFile(imagePath);
}
setImageToHeadView(bitmap);
} catch (Exception e) {
e.printStackTrace();
}
break;
case REQUEST_PERMISSION://許可權請求
if (resultCode == PermissionsActivity.PERMISSIONS_DENIED) {
// finish();
} else {
if (isClickCamera) {
openCamera();
} else {
selectFromAlbum();
}
}
break;
}
}許可權問題
Android 6.0 的部分許可權在使用相應功能時，應該判斷是否已允許，如果沒有需要讓使用者設定，程式碼有增加許可權檢測器，如果被使用者禁止，跳轉到設定中的許可權設定介面。