Java tutorial
/*Copyright 2015 TommyLemon(https://github.com/TommyLemon) Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0 Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.*/ package zuo.biao.library.ui; import android.content.Context; import android.content.Intent; import android.database.Cursor; import android.net.Uri; import android.os.Build; import android.os.Bundle; import android.provider.MediaStore; import android.support.v4.content.FileProvider; import android.view.Gravity; import android.view.View; import android.view.View.OnClickListener; import android.widget.Toast; import java.io.File; import zuo.biao.library.R; import zuo.biao.library.base.BaseActivity; import zuo.biao.library.base.BaseApplication; import zuo.biao.library.util.CommonUtil; import zuo.biao.library.util.DataKeeper; /**?Activity, * @author Lemon * @use * <br> toActivitystartActivityForResult (SelectPictureActivity.createIntent(...), requestCode); * <br> ?onActivityResult * <br> data.getStringExtra(SelectPictureActivity.RESULT_PICTURE_PATH); ? */ public class SelectPictureActivity extends BaseActivity implements OnClickListener { // private static final String TAG = "SelectPictureActivity"; //?<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< /** * @param context * @return */ public static Intent createIntent(Context context) { return new Intent(context, SelectPictureActivity.class); } //?<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.select_picture_activity); //<<<<<<<<<< initView(); initData(); initEvent(); //>>>>>>>>>> } //UI(?UI????????)<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< @Override public void initView() {// } //UI(?UI????????)>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> //Data?(???????)<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< private String picturePath = ""; @Override public void initData() {// } private File cameraFile; /** * ? */ public void selectPicFromCamera() { if (!CommonUtil.isExitsSdcard()) { showShortToast("SD????"); return; } intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE); // ?? cameraFile = new File(DataKeeper.imagePath, "photo" + System.currentTimeMillis() + ".jpg"); cameraFile.getParentFile().mkdirs(); Uri uri; if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) { uri = FileProvider.getUriForFile(context, BaseApplication.getInstance().getApplicationInfo().packageName + ".fileProvider", cameraFile); } else { uri = Uri.fromFile(cameraFile); } intent.putExtra(MediaStore.EXTRA_OUTPUT, uri); toActivity(intent, REQUEST_CODE_CAMERA); } /** * ? */ public void selectPicFromLocal() { Intent intent; if (Build.VERSION.SDK_INT < 19) { intent = new Intent(Intent.ACTION_GET_CONTENT); intent.setType("image/*"); } else { intent = new Intent(Intent.ACTION_PICK, android.provider.MediaStore.Images.Media.EXTERNAL_CONTENT_URI); } toActivity(intent, REQUEST_CODE_LOCAL); } public static final String RESULT_PICTURE_PATH = "RESULT_PICTURE_PATH"; /**?uri?? * @param selectedImage */ private void sendPicByUri(Uri selectedImage) { Cursor cursor = getContentResolver().query(selectedImage, null, null, null, null); if (cursor != null) { cursor.moveToFirst(); int columnIndex = cursor.getColumnIndex("_data"); picturePath = cursor.getString(columnIndex); cursor.close(); cursor = null; if (picturePath == null || picturePath.equals("null")) { Toast toast = Toast.makeText(this, "?", Toast.LENGTH_SHORT); toast.setGravity(Gravity.CENTER, 0, 0); toast.show(); return; } } else { File file = new File(selectedImage.getPath()); if (!file.exists()) { Toast toast = Toast.makeText(this, "?", Toast.LENGTH_SHORT); toast.setGravity(Gravity.CENTER, 0, 0); toast.show(); return; } picturePath = file.getAbsolutePath(); } setResult(RESULT_OK, new Intent().putExtra(RESULT_PICTURE_PATH, picturePath)); } //Data?(???????)>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> //Event(????)<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< @Override public void initEvent() {// findViewById(R.id.llSelectPictureBg).setOnClickListener(this); toActivity( new Intent(context, BottomMenuWindow.class).putExtra(BottomMenuWindow.INTENT_TITLE, "") .putExtra(BottomMenuWindow.INTENT_ITEMS, new String[] { "?", "" }), REQUEST_TO_BOTTOM_MENU, false); } //?<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< @Override public void onClick(View v) { if (v.getId() == R.id.llSelectPictureBg) { finish(); } } //?<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< public static final int REQUEST_TO_BOTTOM_MENU = 10; public static final int REQUEST_CODE_CAMERA = 18; public static final int REQUEST_CODE_LOCAL = 19; @Override public void onActivityResult(int requestCode, int resultCode, Intent data) { super.onActivityResult(requestCode, resultCode, data); if (resultCode == RESULT_OK) { switch (requestCode) { case REQUEST_TO_BOTTOM_MENU: if (data != null) { switch (data.getIntExtra(BottomMenuWindow.RESULT_ITEM_ID, -1)) { case 0: selectPicFromCamera();// return; case 1: selectPicFromLocal();// return; default: break; } } break; case REQUEST_CODE_CAMERA: //?? if (cameraFile != null && cameraFile.exists()) { picturePath = cameraFile.getAbsolutePath(); setResult(RESULT_OK, new Intent().putExtra(RESULT_PICTURE_PATH, picturePath)); } case REQUEST_CODE_LOCAL: //?? if (data != null) { Uri selectedImage = data.getData(); if (selectedImage != null) { sendPicByUri(selectedImage); } } break; default: break; } } finish(); } @Override public void finish() { exitAnim = enterAnim = R.anim.null_anim; super.finish(); } //?>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> //?>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> //Event(????)>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> //,?<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< //,?>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> }