Java tutorial
package com.survivingwithandroid.pegboard; import android.net.Uri; import android.os.Bundle; import android.provider.MediaStore; import android.app.Activity; import android.content.Context; import android.content.Intent; import android.database.Cursor; import android.graphics.Bitmap; import android.graphics.BitmapFactory; import android.support.v4.widget.SlidingPaneLayout; import android.util.Log; import android.view.Display; import android.view.Gravity; import android.view.LayoutInflater; import android.view.Menu; import android.view.MenuItem; import android.view.View; import android.view.Window; import android.view.WindowManager; import android.view.inputmethod.InputMethodManager; import android.widget.Button; import android.widget.EditText; import android.widget.PopupWindow; import android.widget.RelativeLayout; import android.widget.TextView; import android.widget.Toast; import com.survivingwithandroid.pegboard.fragment.DreamPinTableFragment; import com.survivingwithandroid.pegboard.fragment.MenuFragment; import com.survivingwithandroid.pegboard.util.ImageUtility; import com.survivingwithandroid.pegboard.util.SaveFileException; /* * Copyright (C) 2014 Francesco Azzola - Surviving with Android (http://www.survivingwithandroid.com) * * 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. */ public class DreamPinsActivity extends Activity implements MenuFragment.MenuEventListener { private SlidingPaneLayout sPaneLy; private DreamPinTableFragment pinTableFrag; private static final int SELECT_PICTURE = 1410; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); requestWindowFeature(Window.FEATURE_NO_TITLE); getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN, WindowManager.LayoutParams.FLAG_FULLSCREEN); setContentView(R.layout.activity_main); this.sPaneLy = (SlidingPaneLayout) findViewById(R.id.sp); pinTableFrag = (DreamPinTableFragment) getFragmentManager().findFragmentById(R.id.pinTable); } @Override public boolean onCreateOptionsMenu(Menu menu) { // Inflate the menu; this adds items to the action bar if it is present. getMenuInflater().inflate(R.menu.main, menu); return true; } @Override public boolean onOptionsItemSelected(MenuItem item) { int id = item.getItemId(); if (id == R.id.action_donate) { // Show popup // Handle donate here } return false; } /************************************************** * * CallBack methods * **************************************************/ @Override public void onPinSelected(int pinId) { pinTableFrag.setCurrentPin(pinId); closeMenu(); } @Override public void onClearSelected() { closeMenu(); LayoutInflater inf = (LayoutInflater) this.getSystemService(Context.LAYOUT_INFLATER_SERVICE); View v = inf.inflate(R.layout.popclear_layout, null, false); final PopupWindow pw = new PopupWindow(v); pw.setWidth(RelativeLayout.LayoutParams.WRAP_CONTENT); pw.setHeight(RelativeLayout.LayoutParams.WRAP_CONTENT); TextView yesTxt = (TextView) v.findViewById(R.id.dlgYes); TextView noTxt = (TextView) v.findViewById(R.id.dlgNo); noTxt.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { pw.dismiss(); } }); yesTxt.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { pw.dismiss(); pinTableFrag.clearBoard(); } }); pw.showAtLocation(v, Gravity.CENTER, 0, 0); } @Override public void onSaveSelected() { closeMenu(); LayoutInflater inf = (LayoutInflater) this.getSystemService(Context.LAYOUT_INFLATER_SERVICE); View v = inf.inflate(R.layout.popsave_layout, null, false); final PopupWindow pw = new PopupWindow(v); pw.setFocusable(true); pw.setWidth(RelativeLayout.LayoutParams.WRAP_CONTENT); pw.setHeight(RelativeLayout.LayoutParams.WRAP_CONTENT); final EditText edt = (EditText) v.findViewById(R.id.edtFileName); TextView saveTxt = (TextView) v.findViewById(R.id.dlgSave); TextView cancelTxt = (TextView) v.findViewById(R.id.dlgCancel); cancelTxt.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { pw.dismiss(); } }); saveTxt.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { pw.dismiss(); Bitmap b = pinTableFrag.createBitmap(); try { ImageUtility.saveImage(b, edt.getEditableText().toString(), DreamPinsActivity.this); } catch (SaveFileException sfe) { Toast.makeText(DreamPinsActivity.this, getResources().getText(R.string.msgSaveFileError), Toast.LENGTH_LONG).show(); } } }); pw.showAtLocation(v, Gravity.CENTER, 0, 0); } public void onBackgroundSelected() { LayoutInflater inf = (LayoutInflater) this.getSystemService(Context.LAYOUT_INFLATER_SERVICE); View v = inf.inflate(R.layout.popbkg_layout, null, false); final PopupWindow pw = new PopupWindow(v); pw.setFocusable(true); pw.setWidth(RelativeLayout.LayoutParams.WRAP_CONTENT); pw.setHeight(RelativeLayout.LayoutParams.WRAP_CONTENT); TextView changeTxt = (TextView) v.findViewById(R.id.dlgChange); TextView resetTxt = (TextView) v.findViewById(R.id.dlgReset); TextView cancelTxt = (TextView) v.findViewById(R.id.dlgCancel); cancelTxt.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { pw.dismiss(); } }); resetTxt.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { pw.dismiss(); pinTableFrag.setBackground(R.drawable.tilebkg); } }); changeTxt.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { pw.dismiss(); // Start a new Intent to get the picture from the Gallery Intent intent = new Intent(); intent.setType("image/*"); intent.setAction(Intent.ACTION_GET_CONTENT); intent.addCategory(Intent.CATEGORY_OPENABLE); startActivityForResult(intent, SELECT_PICTURE); } }); pw.showAtLocation(v, Gravity.CENTER, 0, 0); } @Override protected void onActivityResult(int requestCode, int resultCode, Intent data) { super.onActivityResult(requestCode, resultCode, data); switch (requestCode) { case SELECT_PICTURE: if (resultCode == RESULT_OK) { Uri selectedImage = data.getData(); String[] filePathColumn = { MediaStore.Images.Media.DATA }; Cursor cursor = getContentResolver().query(selectedImage, filePathColumn, null, null, null); cursor.moveToFirst(); int columnIndex = cursor.getColumnIndex(filePathColumn[0]); String filePath = cursor.getString(columnIndex); cursor.close(); Bitmap bkgImg = BitmapFactory.decodeFile(filePath); Display disp = getWindowManager().getDefaultDisplay(); int w = disp.getWidth(); int h = disp.getHeight(); double scaleX = (w * 1.0) / bkgImg.getWidth(); double scaleY = (h * 1.0) / bkgImg.getHeight(); double scale = Math.min(scaleX, scaleY); double sw = w * scaleX; double sh = h * scaleY; // System.out.println("Scale X ["+scaleX+"] - Scale Y ["+scaleY+"] - Scale ["+scale+"]"); bkgImg = Bitmap.createBitmap(bkgImg, 0, 0, w, h); pinTableFrag.setBackground(bkgImg); } } } private void closeMenu() { if (sPaneLy.isSlideable()) { // We close the left fragment sPaneLy.closePane(); } } }