上一篇頭像從Bomb獲取表中獲取。
效果圖:
這裏有效果是通過style風格設置。
<activity android:name=".SelectphotoActivity"
android:theme="@style/DialogStyleBottom"
>
<style name="DialogStyleBottom" parent="android:Theme.Dialog">
<item name="windowActionBar">false</item>
<item name="windowNoTitle">true</item>
<item name="android:windowAnimationStyle">@style/AnimBottom</item>
<item name="android:windowFrame">@null</item>
<!-- 邊框 -->
<item name="android:windowIsFloating">false</item>
<!-- 是否浮現在activity之上 -->
<item name="android:windowIsTranslucent">true</item>
<!-- 半透明 -->
<item name="android:windowNoTitle">true</item>
<!-- 無標題 -->
<item name="android:windowBackground">@android:color/transparent</item>
<!-- 背景透明 -->
<item name="android:backgroundDimEnabled">true</item>
<!-- 模糊 -->
</style>
<style name="AnimBottom" parent="@android:style/Animation">
<item name="android:windowEnterAnimation">@anim/push_bottom_in</item>
<item name="android:windowExitAnimation">@anim/push_bottom_out</item>
</style>
佈局
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".activity.SelectPhotoActivity">
<LinearLayout
android:id="@+id/pop_layout_select_pic"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:gravity="center_horizontal"
android:orientation="vertical" >
<TextView
android:id="@+id/text_take_photo"
android:layout_width="fill_parent"
android:layout_height="50.0dip"
android:layout_marginLeft="10.0dip"
android:layout_marginRight="10.0dip"
android:background="@drawable/shape_popup_top"
android:gravity="center"
android:orientation="horizontal"
android:text="@string/photograph"
android:textColor="#ff006cff"
android:textSize="18.0sp"/>
<View
android:layout_width="fill_parent"
android:layout_height="1.0dip"
android:layout_marginLeft="10.0dip"
android:layout_marginRight="10.0dip"
style="@style/horizontal_line_style"/>
<TextView
android:id="@+id/text_pick_photo"
android:layout_width="fill_parent"
android:layout_height="50.0dip"
android:layout_marginLeft="10.0dip"
android:layout_marginRight="10.0dip"
android:background="@drawable/shape_popup_bottom"
android:gravity="center"
android:orientation="horizontal"
android:text="@string/album"
android:textColor="#ff006cff"
android:textSize="18.0sp"/>
<TextView
android:id="@+id/text_cancle"
android:layout_width="fill_parent"
android:layout_height="50.0dip"
android:layout_margin="10.0dip"
android:background="@drawable/shape_popup"
android:gravity="center"
android:orientation="horizontal"
android:text="@string/cancel"
android:textColor="#ff006cff"
android:textSize="18.0sp"
android:textStyle="bold"/>
</LinearLayout>
</RelativeLayout>
之後就是從相冊裏選擇或者拍照之後上傳到Bomb上。雖然我寫的東西網上有很多,但是到自己手裏能運行的很少,慢慢學習與嘗試。可以是時代久遠……
上傳文件失敗:errorCode:9015,errorMsg:java.io.FileNotFoundException: /storage/emulated/0/DCIM/Camera/IMG_20190602_063607.jpg: open failed: EACCES (Permission denied)
圖片上傳這裏我我遇見一個問題 說查找不到文件路徑,權限受限,我也不知道Android路徑啊,很懵,我也看不見Android圖片的具體路徑那,我裁剪了所以找不到嗎,還虛擬機的問題那 ,具體這裏就是相冊的問題,我先做個小dome,測試從相冊進行更改ImageView。
測試成功 代碼如下:
button1.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
Intent intent = new Intent(Intent.ACTION_PICK, null);
intent.setDataAndType(MediaStore.Images.Media.EXTERNAL_CONTENT_URI, "image/*");
startActivityForResult(intent, CHOOSE_PICTURE);
}
});
button2.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
File outputImage=new File(Environment.getExternalStorageDirectory(),
"output_image.jpg");//創建File對象,用於存儲拍照後的圖片,獲取sd卡根目錄
try{
if(outputImage.exists()){
outputImage.delete();
}
outputImage.createNewFile();
}catch (IOException e){
e.printStackTrace();
}
imageUri=Uri.fromFile(outputImage);//File對象轉化爲Uri對象
Intent intent=new Intent("android.media.action.IMAGE_CAPTURE");
intent.putExtra(MediaStore.EXTRA_OUTPUT,imageUri);
startActivityForResult(intent,TAKE_PICTURE); //啓動相機程序
}
});
拍照:創建一個file文件,用來存儲攝像頭拍下的照片,存放在SD卡根目錄下。 同時這裏使用的是一個隱式的Intent,調用的startActivityForResult(intent,TAKE_PHOTO); //啓動相機程序 來啓動活動。
拍下的照片輸出成.jpg文件。
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
if (resultCode == MainActivity.RESULT_OK) {
switch (requestCode) {
case TAKE_PICTURE:
cropPhoto(imageUri);
break;
case CHOOSE_PICTURE:
Uri uri1 = data.getData();
cropPhoto(uri1);
break;
case CROP_SMALL_PICTURE:
Bundle bundle = data.getExtras();
if (bundle != null) {
//在這裏獲得了剪裁後的Bitmap對象,可以用於上傳
Bitmap image = bundle.getParcelable("data");
Log.e("我是裁剪後",""+image);
//設置到ImageView上
img.setImageBitmap(image);
//也可以進行一些保存、壓縮等操作後上傳
String path = saveImage("crop", image);
Log.e("我是裁剪後2",""+path);
}
break;
}
}
}
如果拍照成功,再次構建一個intent 對象,這個intent 進行裁剪活動 。
public String saveImage(String name, Bitmap bmp) {
File appDir = new File(Environment.getExternalStorageDirectory().getPath());
if (!appDir.exists()) {
appDir.mkdir();
}
String fileName = name + ".jpg";
File file = new File(appDir, fileName);
try {
FileOutputStream fos = new FileOutputStream(file);
bmp.compress(Bitmap.CompressFormat.PNG, 100, fos);
fos.flush();
fos.close();
return file.getAbsolutePath();
} catch (IOException e) {
e.printStackTrace();
}
return null;
}
private Bitmap getURLimage(String imageUrl) {
Bitmap bmp = null;
try {
URL myurl = new URL(imageUrl);
// 獲得連接
HttpURLConnection conn = (HttpURLConnection) myurl.openConnection();
conn.setConnectTimeout(6000);//設置超時
conn.setDoInput(true);
conn.setUseCaches(false);//不緩存
conn.connect();
InputStream is = conn.getInputStream();//獲得圖片的數據流
bmp = BitmapFactory.decodeStream(is);
is.close();
} catch (Exception e) {
e.printStackTrace();
}
return bmp;
}
/**
* 裁剪圖片
*/
private void cropPhoto(Uri uri) {
Intent intent = new Intent("com.android.camera.action.CROP");
intent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
intent.addFlags(Intent.FLAG_GRANT_WRITE_URI_PERMISSION);
intent.setDataAndType(uri, "image/*");
intent.putExtra("crop", "true");
intent.putExtra("aspectX", 1);
intent.putExtra("aspectY", 1);
intent.putExtra("outputX", 300);
intent.putExtra("outputY", 300);
intent.putExtra("return-data", true);
startActivityForResult(intent, CROP_SMALL_PICTURE);
}
}
這裏是將將照片解析成bitmip對象,然後設置到imageview中顯示出來。
涉及向SD卡中寫數據的操作,聲明權限:
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
這裏不要寫多了,有時候權限寫多了也報錯,會重複請求。這裏我之前多寫了獲取相機的權限,結果一直報錯。
做項目集成:
項目集成就是涉及圖片的上傳,這裏原先有一個找不到路徑的我問題,細化之後就解決了問題。
試了很多次才成功的,整套代碼:
在一個主界面(主Activity)通過意圖跳轉至多個不同子Activity上去,當子模塊的代碼執行完畢後再次返回主頁面,將子activity中得到的數據顯示在主界面/完成的數據交給主Activity處理。這種帶數據的意圖跳轉需要使用activity的onActivityResult()方法。
(1)startActivityForResult(Intent intent, int requestCode);
第一個參數:一個Intent對象,用於攜帶將跳轉至下一個界面中使用的數據,使用putExtra(A,B)方法,此處存儲的數據類型特別多,基本類型全部支持。
第二個參數:如果> = 0,當Activity結束時requestCode將歸還在onActivityResult()中。以便確定返回的數據是從哪個Activity中返回,用來標識目標activity。
與下面的resultCode功能一致,感覺Android就是爲了保證數據的嚴格一致性特地設置了兩把鎖,來保證數據的發送,目的地的嚴格一致性。
(2)onActivityResult(int requestCode, int resultCode, Intent data)
第一個參數:這個整數requestCode用於與startActivityForResult中的requestCode中值進行比較判斷,是以便確認返回的數據是從哪個Activity返回的。
第二個參數:這整數resultCode是由子Activity通過其setResult()方法返回。適用於多個activity都返回數據時,來標識到底是哪一個activity返回的值。
第三個參數:一個Intent對象,帶有返回的數據。可以通過data.getXxxExtra( );方法來獲取指定數據類型的數據。
二改:
改成點擊圓形頭像切換頭像。SelectPhotoActivity.java
public class SelectPhotoActivity extends BaseActivity {
private Uri imageUri;
private static final int RESULT_CODE_STARTCAMERA = 0x01;
public static final int TAKE_PHOTO = 0x02;
public static final int CHOOSE_PHOTO = 0x03;
public static final int CUT_PHOTO = 0x04;
@Override
protected int contentViewID() {
return R.layout.activity_select_photo;
}
@Override
protected void initialize() {
setTopTitle("", false);
StatusBarUtils.setTransparent(this);
}
@OnClick({R.id.text_take_photo, R.id.text_pick_photo, R.id.text_cancle})
public void OnClick(View view) {
switch (view.getId()) {
case R.id.text_pick_photo:
onAlbum();
break;
case R.id.text_take_photo:
onCamera();
break;
case R.id.text_cancle:
finish();
break;
}
}
private void onAlbum() {
Intent intent = new Intent(Intent.ACTION_PICK, null);
intent.setDataAndType(MediaStore.Images.Media.EXTERNAL_CONTENT_URI, "image/*");
startActivityForResult(intent, CHOOSE_PHOTO);
}
private void onCamera() {
if (PackageManager.PERMISSION_GRANTED == ContextCompat.checkSelfPermission(this, Manifest.permission.CAMERA)) {
pickImageFromCamera();
} else {
//提示用戶開戶權限 拍照和讀寫sd卡權限
String[] perms = {Manifest.permission.READ_EXTERNAL_STORAGE, Manifest.permission.WRITE_EXTERNAL_STORAGE, Manifest.permission.CAMERA};
ActivityCompat.requestPermissions(this, perms, RESULT_CODE_STARTCAMERA);
}
}
@Override
public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
super.onRequestPermissionsResult(requestCode, permissions, grantResults);
switch (requestCode) {
case RESULT_CODE_STARTCAMERA:
if (grantResults.length > 0 && grantResults[0] == PackageManager.PERMISSION_GRANTED) {
pickImageFromCamera();
} else {
ToastUtils.showShort(SelectPhotoActivity.this, getString(R.string.no_permissions));
}
break;
}
}
//拍照
private void pickImageFromCamera() {
File outputImage = new File(Environment.getExternalStorageDirectory(),
"output_image.jpg");//創建File對象,用於存儲拍照後的圖片,獲取sd卡根目錄
try {
if (outputImage.exists()) {
outputImage.delete();
}
outputImage.createNewFile();
} catch (IOException e) {
e.printStackTrace();
}
imageUri = Uri.fromFile(outputImage);//File對象轉化爲Uri對象
Intent intent = new Intent("android.media.action.IMAGE_CAPTURE");
intent.putExtra(MediaStore.EXTRA_OUTPUT, imageUri);
startActivityForResult(intent, TAKE_PHOTO); //啓動相機程序
}
@Override
protected void onActivityResult(int requestCode, int resultCode, @Nullable Intent data) {
super.onActivityResult(requestCode, resultCode, data);
if (resultCode == RESULT_OK) {
switch (requestCode) {
case TAKE_PHOTO:
cropPhoto(imageUri);
break;
case CUT_PHOTO:
Bundle bundle = data.getExtras();
if (bundle != null) {
//在這裏獲得了剪裁後的Bitmap對象,可以用於上傳
Bitmap image = bundle.getParcelable("data");
String path = saveImage("HeadImages", image);
setPicToView(path);
}
break;
case CHOOSE_PHOTO:
if (data == null || data.getData() == null) {
return;
}
try {
Uri uri = data.getData();
cropPhoto(uri);
} catch (Exception e) {
e.printStackTrace();
}
break;
}
}
}
private void setPicToView(String path) {
if (path == null) {
ToastUtils.showShort(SelectPhotoActivity.this, getString(R.string.image_upload_fail));
return;
}
final BmobFile bmobFile = new BmobFile(new File(path));
bmobFile.uploadblock(new UploadFileListener() {
@Override
public void done(BmobException e) {
if (e == null) {
MyUser myUser = MyUser.getCurrentUser(MyUser.class);
myUser.setPhotoImage(bmobFile);
myUser.update(myUser.getObjectId(), new UpdateListener() {
@Override
public void done(BmobException e) {
if (e == null) {
ToastUtils.showShort(SelectPhotoActivity.this, getString(R.string.image_upload));
EventBus.getDefault().post(new MessageEvent(ConstantConfig.HEAD_IMAGE_SUCCESS));
} else {
ToastUtils.showShort(SelectPhotoActivity.this, getString(R.string.image_upload_fail));
}
}
});
}
}
});
}
/**
* 裁剪圖片
*
* @param uri
*/
private void cropPhoto(Uri uri) {
Intent intent = new Intent("com.android.camera.action.CROP");
intent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
intent.addFlags(Intent.FLAG_GRANT_WRITE_URI_PERMISSION);
intent.setDataAndType(uri, "image/*");
intent.putExtra("crop", "true");
intent.putExtra("aspectX", 1);
intent.putExtra("aspectY", 1);
intent.putExtra("outputX", 300);
intent.putExtra("outputY", 300);
intent.putExtra("return-data", true);
startActivityForResult(intent, CUT_PHOTO);
}
public String saveImage(String name, Bitmap bmp) {
File appDir = new File(Environment.getExternalStorageDirectory().getPath());
if (!appDir.exists()) {
appDir.mkdir();
}
String fileName = name + ".jpg";
File file = new File(appDir, fileName);
try {
FileOutputStream fos = new FileOutputStream(file);
bmp.compress(Bitmap.CompressFormat.PNG, 100, fos);
fos.flush();
fos.close();
return file.getAbsolutePath();
} catch (IOException e) {
e.printStackTrace();
}
return null;
}
}