
1.效果图如下
点击选择照相后,d出如下选择对话框:
2. Dialog实现
布局
<linearLayout xmlns:androID="http://schemas.androID.com/apk/res/androID" androID:layout_wIDth="match_parent" androID:layout_height="match_parent" androID:orIEntation="vertical"> <TextVIEw androID:ID="@+ID/abroad_takephoto" androID:layout_wIDth="match_parent" androID:layout_height="@dimen/abroad_dialog_item_hight" androID:background="@drawable/abroad_dialogitem_selector" androID:gravity="center" androID:text="@string/abroad_photo" androID:textcolor="@color/abroad_dialog_textcolor" androID:textSize="@dimen/abroad_dialog_textsize" /> <VIEw androID:layout_wIDth="match_parent" androID:layout_height="@dimen/abroad_dialog_vIEw_hight" androID:background="@color/abroad_dialog_vIEw_bg" /> <TextVIEw androID:ID="@+ID/abroad_choosephoto" androID:layout_wIDth="match_parent" androID:layout_height="@dimen/abroad_dialog_item_hight" androID:background="@drawable/abroad_dialogitem_selector" androID:gravity="center" androID:text="@string/abroad_choosephotp" androID:textcolor="@color/abroad_dialog_textcolor" androID:textSize="@dimen/abroad_dialog_textsize" /> <TextVIEw androID:ID="@+ID/abroad_choose_cancel" androID:layout_wIDth="match_parent" androID:layout_height="@dimen/abroad_dialog_item_hight" androID:layout_margintop="@dimen/abroad_Feedback_top" androID:background="@drawable/abroad_dialogitem_selector" androID:gravity="center" androID:text="@string/abroad_cancel" androID:textcolor="@color/abroad_dialog_textcolor" androID:textSize="@dimen/abroad_dialog_textsize" /></linearLayout>
上面的高度和颜色,文字:
<color name="abroad_dialog_item">#ffffff</color> <color name="abroad_dialog_item_press">#dfdfdf</color> <color name="abroad_dialog_textcolor">#222222</color> <color name="abroad_dialog_vIEw_bg">#cccccc</color> <dimen name="abroad_dialog_item_hight">45dp</dimen> <dimen name="abroad_Feedback_top">8dp</dimen> <dimen name="abroad_dialog_textsize">18sp</dimen> <string name="abroad_photo">拍照</string> <string name="abroad_choosephotp">从相册选择</string> <string name="abroad_cancel">取消</string>
控件selector
<?xml version="1.0" enCoding="utf-8"?><selector xmlns:androID="http://schemas.androID.com/apk/res/androID"> <item androID:drawable="@color/abroad_dialog_item_press" androID:state_pressed="true" /> <item androID:drawable="@color/abroad_dialog_item" /></selector>
Dialog 创建
在style文件里面添加主题及dialogd出动画
<style name="ActionSheetDialogStyle" parent="@androID:style/theme.Dialog"> <!-- 背景透明 --> <item name="androID:windowBackground">@androID:color/transparent</item> <item name="androID:windowContentOverlay">@null</item> <!-- 浮于Activity之上 --> <item name="androID:windowIsfloating">true</item> <!-- 边框 --> <item name="androID:windowFrame">@null</item> <!-- Dialog以外的区域模糊效果 --> <item name="androID:backgroundDimEnabled">true</item> <!-- 无标题 --> <item name="androID:windowNoTitle">true</item> <!-- 半透明 --> <item name="androID:windowIsTranslucent">true</item> <!-- Dialog进入及退出动画 --> <item name="androID:windowAnimationStyle">@style/style_inner_map_dialog_animation</item><style name="style_inner_map_dialog_animation"> <!--dialog的进出动画--> <item name="androID:windowEnteranimation">@anim/scale_Alpha_to_enter</item> <item name="androID:windowExitAnimation">@anim/scale_Alpha_to_exit</item></style>
dialog创建
private TextVIEw cancel;private TextVIEw takePhoto;private TextVIEw choosePhoto;private Dialog dialog;public voID chosePhotoDialog() { dialog = new Dialog(this,R.style.ActionSheetDialogStyle); inflate = LayoutInflater.from(this).inflate(R.layout.vIEw_abroad_choosephoto_dialog,null); choosePhoto = (TextVIEw) inflate.findVIEwByID(R.ID.abroad_choosephoto); takePhoto = (TextVIEw) inflate.findVIEwByID(R.ID.abroad_takephoto); cancel = (TextVIEw) inflate.findVIEwByID(R.ID.abroad_choose_cancel); choosePhoto.setonClickListener(this); takePhoto.setonClickListener(this); cancel.setonClickListener(this); dialog.setContentVIEw(inflate); Window window = dialog.getwindow(); if (dialog != null && window != null) { window.getDecorVIEw().setpadding(0,0); WindowManager.LayoutParams attr = window.getAttributes(); if (attr != null) { attr.height = VIEwGroup.LayoutParams.WRAP_CONTENT; attr.wIDth = VIEwGroup.LayoutParams.MATCH_PARENT; attr.gravity = Gravity.BottOM;//设置dialog 在布局中的位置 window.setAttributes(attr); } } dialog.show();}Dialig 点击事件
@OverrIDe
public voID onClick(VIEw vIEw) {
switch (vIEw.getID()) {
case R.ID.abroad_choosephoto:
pickAlbum();
break;
case R.ID.abroad_takephoto:
takePhotos();
break;
case R.ID.abroad_choose_cancel:
dialog.dismiss();
}
dialog.dismiss();
}
3. 选择图片
定义事件类型
private static final int PHOTO_REQUEST_CAREMA = 1;// 拍照 private static final int PHOTO_REQUEST_galLERY = 2;// 从相册中选择 private static final int PHOTO_REQUEST_CUT = 3;// 结果
从相册选取图片
/*** * 进入系统相册界面 */ private voID pickAlbum() { Intent intent = new Intent(Intent.ACTION_PICK,null); intent.setDataAndType(MediaStore.Images.Media.EXTERNAL_CONTENT_URI,"image/*"); startActivityForResult(intent,PHOTO_REQUEST_galLERY); }手机拍照后选取图片
protected voID takePhotos() { Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE); startActivityForResult(intent,PHOTO_REQUEST_CAREMA); }图片选择后,最终都会把数据返回到onActivityResult()方法里面,所以我们需要在activity里面重写此方法
@OverrIDe protected voID onActivityResult(int requestCode,int resultCode,Intent data) { switch (requestCode) { case PHOTO_REQUEST_galLERY: if (data != null) { Uri uri = handleImage(data); cropPhoto(uri); } break; case PHOTO_REQUEST_CAREMA: if (resultCode == RESulT_CANCELED) { return; } if (data != null) { Bitmap photo = data.getParcelableExtra("data"); //将Bitmap转化为uri Uri uri = saveBitmap(photo,"temp"); //启动图像裁剪 cropPhoto(uri); } break; case PHOTO_REQUEST_CUT: LogUtil.d("abroadUseActivity2","裁剪"); // 从剪切图片返回的数据 if (data == null) { return; } bitmap = data.getParcelableExtra("data"); if (bitmap == null) {// return; } // Todo 此处我们便获得了bitmap对象,做其他 *** 作 bitmap.recycle(); break; default: break; } super.onActivityResult(requestCode,resultCode,data); }裁剪的方法
private voID cropPhoto(Uri uri) { // 裁剪图片意图 Intent intent = new Intent("com.androID.camera.action.CROP"); intent.setDataAndType(uri,"image/*"); intent.putExtra("crop","true"); // 裁剪框的比例,1:1 intent.putExtra("aspectX",1); intent.putExtra("aspectY",1); // 裁剪后输出图片的尺寸大小 intent.putExtra("outputX",250); intent.putExtra("outputY",250); intent.putExtra("outputFormat","JPEG");// 图片格式 intent.putExtra("noFaceDetection",true);// 取消人脸识别 intent.putExtra("return-data",true); // 开启一个带有返回值的Activity,请求码为PHOTO_REQUEST_CUT startActivityForResult(intent,PHOTO_REQUEST_CUT); }拍照后需要先把数据保存一个临时的文件,然后再获取文件,才能裁剪
/** * 把bitmap保存到本地 * * @param bm bitmap * @param dirPath 路径 * @return 文件的uri */ private Uri saveBitmap(Bitmap bm,String dirPath) { //新建文件夹用于存放裁剪后的图片 file tmpDir = new file(Environment.getExternalStorageDirectory() + "/" + dirPath); if (!tmpDir.exists()) { tmpDir.mkdir(); } //新建文件存储裁剪后的图片 file img = new file(tmpDir.getabsolutePath() + "/Feedback.png"); try { //打开文件输出流 fileOutputStream fos = new fileOutputStream(img); //将bitmap压缩后写入输出流(参数依次为图片格式、图片质量和输出流) bm.compress(Bitmap.CompressFormat.JPEG,100,fos); fos.flush(); fos.close(); //返回file类型的Uri return Uri.fromfile(img); } catch (fileNotFoundException e) { e.printstacktrace(); return null; } catch (IOException e) { e.printstacktrace(); return null; } }4.注意事项
本来选择后不打算裁剪,但是在小米6等手机上,不裁剪容易崩溃,而裁剪的另一个好处就是压缩图片
在我们获取bitmap后,可以在那里做一些业务 *** 作,但是一定要记得把bitmap文件回收,不然容易导致内存泄漏
总结
以上所述是小编给大家介绍的AndoroID实现底部图片选择Dialog效果,希望对大家有所帮助,如果大家有任何疑问请给我留言,小编会及时回复大家的。在此也非常感谢大家对编程小技巧网站的支持!
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