Java tutorial
/**************************************************************************************** * Copyright (c) 2013 Bibek Shrestha <bibekshrestha@gmail.com> * * Copyright (c) 2013 Zaur Molotnikov <qutorial@gmail.com> * * Copyright (c) 2013 Nicolas Raoul <nicolas.raoul@gmail.com> * * Copyright (c) 2013 Flavio Lerda <flerda@gmail.com> * * * * This program is free software; you can redistribute it and/or modify it under * * the terms of the GNU General Public License as published by the Free Software * * Foundation; either version 3 of the License, or (at your option) any later * * version. * * * * This program is distributed in the hope that it will be useful, but WITHOUT ANY * * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A * * PARTICULAR PURPOSE. See the GNU General Public License for more details. * * * * You should have received a copy of the GNU General Public License along with * * this program. If not, see <http://www.gnu.org/licenses/>. * ****************************************************************************************/ package com.ichi2.anki.multimediacard.activity; import android.Manifest; import android.content.Intent; import android.content.pm.PackageManager; import android.os.Bundle; import android.support.v4.app.ActivityCompat; import android.support.v4.content.ContextCompat; import android.support.v7.widget.Toolbar; import android.view.Menu; import android.view.MenuItem; import android.view.View; import android.widget.Button; import android.widget.LinearLayout; import android.widget.LinearLayout.LayoutParams; import com.ichi2.anki.AnkiActivity; import com.ichi2.anki.R; import com.ichi2.anki.multimediacard.IMultimediaEditableNote; import com.ichi2.anki.multimediacard.fields.AudioField; import com.ichi2.anki.multimediacard.fields.BasicControllerFactory; import com.ichi2.anki.multimediacard.fields.EFieldType; import com.ichi2.anki.multimediacard.fields.IControllerFactory; import com.ichi2.anki.multimediacard.fields.IField; import com.ichi2.anki.multimediacard.fields.IFieldController; import com.ichi2.anki.multimediacard.fields.ImageField; import com.ichi2.anki.multimediacard.fields.TextField; import java.io.File; import timber.log.Timber; public class MultimediaEditFieldActivity extends AnkiActivity implements ActivityCompat.OnRequestPermissionsResultCallback { public static final String EXTRA_RESULT_FIELD = "edit.field.result.field"; public static final String EXTRA_RESULT_FIELD_INDEX = "edit.field.result.field.index"; public static final String EXTRA_FIELD_INDEX = "multim.card.ed.extra.field.index"; public static final String EXTRA_FIELD = "multim.card.ed.extra.field"; public static final String EXTRA_WHOLE_NOTE = "multim.card.ed.extra.whole.note"; private static final String BUNDLE_KEY_SHUT_OFF = "key.edit.field.shut.off"; private static final int REQUEST_AUDIO_PERMISSION = 0; IField mField; IMultimediaEditableNote mNote; int mFieldIndex; private IFieldController mFieldController; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); if (savedInstanceState != null) { boolean b = savedInstanceState.getBoolean(BUNDLE_KEY_SHUT_OFF, false); if (b) { finishCancel(); return; } } setContentView(R.layout.multimedia_edit_field_activity); View mainView = findViewById(android.R.id.content); Toolbar toolbar = (Toolbar) mainView.findViewById(R.id.toolbar); if (toolbar != null) { setSupportActionBar(toolbar); } mField = (IField) this.getIntent().getExtras().getSerializable(EXTRA_FIELD); mNote = (IMultimediaEditableNote) this.getIntent().getSerializableExtra(EXTRA_WHOLE_NOTE); mFieldIndex = this.getIntent().getIntExtra(EXTRA_FIELD_INDEX, 0); recreateEditingUi(); // Handling absence of the action bar! int currentapiVersion = android.os.Build.VERSION.SDK_INT; if (currentapiVersion <= android.os.Build.VERSION_CODES.GINGERBREAD_MR1) { LinearLayout linearLayout = (LinearLayout) findViewById(R.id.LinearLayoutForSpareMenuFieldEdit); createSpareMenu(linearLayout); } } private void finishCancel() { Intent resultData = new Intent(); setResult(RESULT_CANCELED, resultData); finish(); } private void recreateEditingUi() { IControllerFactory controllerFactory = BasicControllerFactory.getInstance(); mFieldController = controllerFactory.createControllerForField(mField); if (mFieldController == null) { Timber.d("Field controller creation failed"); return; } // Request permission to record if audio field if (mField instanceof AudioField && ContextCompat.checkSelfPermission(this, Manifest.permission.RECORD_AUDIO) != PackageManager.PERMISSION_GRANTED) { ActivityCompat.requestPermissions(this, new String[] { Manifest.permission.RECORD_AUDIO }, REQUEST_AUDIO_PERMISSION); return; } mFieldController.setField(mField); mFieldController.setFieldIndex(mFieldIndex); mFieldController.setNote(mNote); mFieldController.setEditingActivity(this); LinearLayout linearLayout = (LinearLayout) findViewById(R.id.LinearLayoutInScrollViewFieldEdit); linearLayout.removeAllViews(); mFieldController.createUI(this, linearLayout); } @Override public boolean onCreateOptionsMenu(Menu menu) { // Inflate the menu; this adds items to the action bar if it is present. getMenuInflater().inflate(R.menu.activity_edit_text, menu); menu.findItem(R.id.multimedia_edit_field_to_text).setVisible(mField.getType() != EFieldType.TEXT); menu.findItem(R.id.multimedia_edit_field_to_audio).setVisible(mField.getType() != EFieldType.AUDIO); menu.findItem(R.id.multimedia_edit_field_to_image).setVisible(mField.getType() != EFieldType.IMAGE); return true; } @Override public boolean onOptionsItemSelected(MenuItem item) { switch (item.getItemId()) { case R.id.multimedia_edit_field_to_text: Timber.i("To text field button pressed"); mFieldController.onFocusLost(); toTextField(); supportInvalidateOptionsMenu(); return true; case R.id.multimedia_edit_field_to_image: Timber.i("To image button pressed"); mFieldController.onFocusLost(); toImageField(); supportInvalidateOptionsMenu(); return true; case R.id.multimedia_edit_field_to_audio: Timber.i("To audio button pressed"); mFieldController.onFocusLost(); toAudioField(); supportInvalidateOptionsMenu(); return true; case R.id.multimedia_edit_field_done: Timber.i("Save button pressed"); done(); return true; default: return super.onOptionsItemSelected(item); } } private void createSpareMenu(LinearLayout linearLayout) { LayoutParams pars = new LinearLayout.LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT, 1); Button toTextButton = new Button(this); toTextButton.setText(gtxt(R.string.multimedia_editor_field_editing_text)); toTextButton.setOnClickListener(new View.OnClickListener() { public void onClick(View v) { toTextField(); } }); linearLayout.addView(toTextButton, pars); Button toImageButton = new Button(this); toImageButton.setText(gtxt(R.string.multimedia_editor_field_editing_image)); toImageButton.setOnClickListener(new View.OnClickListener() { public void onClick(View v) { toImageField(); } }); linearLayout.addView(toImageButton, pars); Button toAudioButton = new Button(this); toAudioButton.setText(gtxt(R.string.multimedia_editor_field_editing_audio)); toAudioButton.setOnClickListener(new View.OnClickListener() { public void onClick(View v) { toAudioField(); } }); linearLayout.addView(toAudioButton, pars); Button doneButton = new Button(this); doneButton.setText(gtxt(R.string.multimedia_editor_field_editing_done)); doneButton.setOnClickListener(new View.OnClickListener() { public void onClick(View v) { done(); } }); linearLayout.addView(doneButton, pars); } protected void done() { mFieldController.onDone(); Intent resultData = new Intent(); boolean bChangeToText = false; if (mField.getType() == EFieldType.IMAGE) { if (mField.getImagePath() == null) { bChangeToText = true; } if (!bChangeToText) { File f = new File(mField.getImagePath()); if (!f.exists()) { bChangeToText = true; } } } else if (mField.getType() == EFieldType.AUDIO) { if (mField.getAudioPath() == null) { bChangeToText = true; } if (!bChangeToText) { File f = new File(mField.getAudioPath()); if (!f.exists()) { bChangeToText = true; } } } if (bChangeToText) { mField = new TextField(); } resultData.putExtra(EXTRA_RESULT_FIELD, mField); resultData.putExtra(EXTRA_RESULT_FIELD_INDEX, mFieldIndex); setResult(RESULT_OK, resultData); finish(); } protected void toAudioField() { if (mField.getType() != EFieldType.AUDIO) { mField = new AudioField(); recreateEditingUi(); } } protected void toImageField() { if (mField.getType() != EFieldType.IMAGE) { mField = new ImageField(); recreateEditingUi(); } } protected void toTextField() { if (mField.getType() != EFieldType.TEXT) { mField = new TextField(); recreateEditingUi(); } } @Override protected void onActivityResult(int requestCode, int resultCode, Intent data) { if (mFieldController != null) { mFieldController.onActivityResult(requestCode, resultCode, data); } super.onActivityResult(requestCode, resultCode, data); } public void onRequestPermissionsResult(int requestCode, String[] permissions, int[] grantResults) { if (requestCode == REQUEST_AUDIO_PERMISSION && permissions.length == 1) { // TODO: Disable the record button / show some feedback to the user recreateEditingUi(); } } public void handleFieldChanged(IField newField) { mField = newField; recreateEditingUi(); } @Override protected void onDestroy() { super.onDestroy(); if (mFieldController != null) { mFieldController.onDestroy(); } } private String gtxt(int id) { return getText(id).toString(); } @Override protected void onSaveInstanceState(Bundle outState) { super.onSaveInstanceState(outState); outState.putBoolean(BUNDLE_KEY_SHUT_OFF, true); } }