From Evernote: |
Androidの他アプリからSkypeを起動する方法 |
PackageManager packageManager = getPackageManager();
Intent skype = packageManager.getLaunchIntentForPackage("com.skype.raider");
// skype.setData(Uri.parse("tel:0123456789")); // これは効かなかった。方法ないのかな？
startActivity(skype);
From Evernote: |
AndroidのWebViewでLocalStorageを使う為の設定 |
String databasePath = this.getApplicationContext().getDir("localstorage", Context.MODE_PRIVATE).getPath();Log.d(LOG_TAG, "databasePath=" + databasePath);
webView = (WebView) findViewById(R.id.webview);
webView.getSettings().setJavaScriptEnabled(true);
webView.getSettings().setDomStorageEnabled(true);webView.getSettings().setDatabasePath(databasePath);// webView.setWebChromeClient(new BabukumaWebClient());
webView.loadUrl(URL_TOP);
From Evernote: |
iPhoneとAndroidのURL Scheme起動設定方法 |
$ sudo port install swig $ sudo port install swig-java $ sudo port install cmake「swig」と「swig-java」のactiveバージョンが合わないとエラーになるので、
$ cd opencv/android $ mkdir build $ cd build $ cmake .. $ make
$ cd opencv/android/android-jni $ make実行後、生成された「local.env.mk」ファイルの
#Android.mk
LOCAL_PATH := $(call my-dir)
include $(CLEAR_VARS)
LOCAL_MODULE := OpenCVUtil
LOCAL_SRC_FILES := babukuma_opencv_util.c
LOCAL_LDLIBS := -lm -llog
#define OPENCV_INCLUDES and OPENCV_LIBS
PATH_TO_OPENCV_ANDROID_BUILD := ~/dev/OpenCV-2.2.0/android/build
include $(PATH_TO_OPENCV_ANDROID_BUILD)/android-opencv.mk
LOCAL_LDLIBS += $(OPENCV_LIBS)
LOCAL_C_INCLUDES += $(OPENCV_INCLUDES)
include $(BUILD_SHARED_LIBRARY)
これなら問題なく「ndk-build」でビルドされる。/**
* OpenCVUtil.java
*/
package com.babukuma.android.demo.opencv.jni;
/**
* @author babukuma
*
*/
public final class OpenCVUtil {
static {
System.loadLibrary("OpenCVUtil");
}
/**
* エッジ効果。
*
* @param picData
* RGBのピクセルデータ
* @param width
* 画像のWidth
* @param height
* 画像のHeight
*/
public static native void edge(int[] picData, int width, int height);
}
/**
* EdgeActivity.java
*/
package com.babukuma.android.demo.opencv.activity;
import static com.babukuma.android.demo.opencv.Main.LOG_TAG;
import android.app.Activity;
import android.graphics.Bitmap;
import android.graphics.drawable.BitmapDrawable;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.ImageView;
import com.babukuma.android.demo.opencv.R;
import com.babukuma.android.demo.opencv.jni.OpenCVUtil;
/**
* エッジ効果テスト用Activity
*
* @author babukuma
*/
public class EdgeActivity extends Activity {
private ImageView picView;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
Log.d(LOG_TAG, "EdgeActivity#onCreate");
setContentView(R.layout.edge);
picView = (ImageView) findViewById(R.id.picView);
picView.setOnClickListener(new OnClickListener() {
public void onClick(View v) {
Log.d(LOG_TAG, "picView#1onClick");
BitmapDrawable db = (BitmapDrawable) picView.getDrawable();
Bitmap bitmap = db.getBitmap();
// Bitmap.Config.ARGB_8888
Bitmap copyBitmap = bitmap.copy(Bitmap.Config.ARGB_8888, true);
int width = copyBitmap.getWidth();
int height = copyBitmap.getHeight();
int[] pixels = new int[width * height];
copyBitmap.getPixels(pixels, 0, width, 0, 0, width, height);
Log.d(LOG_TAG, "OpenCVUtil#edge");
OpenCVUtil.edge(pixels, width, height);
Log.d(LOG_TAG, "finish OpenCVUtil#edge");
copyBitmap.setPixels(pixels, 0, width, 0, 0, width, height);
picView.setImageBitmap(copyBitmap);
}
});
}
}
/*
* babukuma_opencv_util.h
*/
/* DO NOT EDIT THIS FILE - it is machine generated */
#include <jni.h>
/* Header for class com_babukuma_android_demo_opencv_jni_OpenCVUtil */
#ifndef _Included_com_babukuma_android_demo_opencv_jni_OpenCVUtil
#define _Included_com_babukuma_android_demo_opencv_jni_OpenCVUtil
#ifdef __cplusplus
extern "C" {
#endif
/*
* Class: com_babukuma_android_demo_opencv_jni_OpenCVUtil
* Method: edge
* Signature: ([III)V
*/
JNIEXPORT void JNICALL Java_com_babukuma_android_demo_opencv_jni_OpenCVUtil_edge
(JNIEnv *, jclass, jintArray, jint, jint);
#ifdef __cplusplus
}
#endif
#endif
/*
* babukuma_opencv_util.c
*/
#include <stdio.h>
// JNI
#include<jni.h>
// Android
#include <android/log.h>
// OpenCV
#include <opencv/cv.h>
#include "babukuma_opencv_util.h"
// Android LOG
#define LOG_TAG "OpenCVDemo"
#define LOGD(...) __android_log_print(ANDROID_LOG_DEBUG,LOG_TAG,__VA_ARGS__)
#define LOGI(...) __android_log_print(ANDROID_LOG_INFO,LOG_TAG,__VA_ARGS__)
#define LOGE(...) __android_log_print(ANDROID_LOG_ERROR,LOG_TAG,__VA_ARGS__)
// 関数定義
IplImage* pixels2IplImage(int* pixels, int width, int height);
void iplImage2Pixcels(int *pixcels, IplImage *srcImage);
/*
* エッジ効果。
* 「picData」データは必ず「ARGB」
*
* Class: com_babukuma_android_demo_opencv_jni_OpenCVUtil
* Method: edge
* Signature: ([III)V
*/
JNIEXPORT void JNICALL Java_com_babukuma_android_demo_opencv_jni_OpenCVUtil_edge
(JNIEnv *env, jclass class, jintArray picData, jint width, jint height)
{
LOGD("call Java_com_babukuma_android_demo_opencv_jni_OpenCVUtil_edge");
jboolean isCopy;
//Colorの配列を取り出す(配列のポインタを取得）
jint* picDataPtr = (*env)->GetIntArrayElements(env, picData, &isCopy);
//Color(int) の配列から、IplImageを作る
LOGD("call pixels2IplImage");
IplImage *srcImage = pixels2IplImage(picDataPtr, width, height);
//画像の作成完了。
LOGD("CV_BGR2GRAY");
IplImage *wordImage=cvCreateImage(cvGetSize(srcImage),IPL_DEPTH_8U,1);
cvCvtColor(srcImage, wordImage, CV_BGR2GRAY);
LOGD("cvReleaseImage srcImage");
cvReleaseImage(&srcImage);
srcImage = NULL;
// Detect edge
LOGD("Detect edge");
IplImage *wordImage2 = cvCreateImage(cvGetSize(wordImage), IPL_DEPTH_8U, 1);
cvCanny(wordImage, wordImage2, 64, 128, 3);
cvReleaseImage(&wordImage);
LOGD("cvReleaseImage wordImage");
cvReleaseImage(&wordImage);
wordImage = NULL;
// Convert black and whilte to 24bit image then convert to UIImage to show
IplImage *edgedImage = cvCreateImage(cvGetSize(wordImage2), IPL_DEPTH_8U, 3);
int y, x;
for(y=0; y<wordImage2->height; y++) {
for(x=0; x<wordImage2->width; x++) {
char *p = edgedImage->imageData + y * edgedImage->widthStep + x * 3;
*p = *(p+1) = *(p+2) = wordImage2->imageData[y * wordImage2->widthStep + x];
}
}
LOGD("cvReleaseImage wordImage2");
cvReleaseImage(&wordImage2);
wordImage2 = NULL;
//IplImageの値を、int配列に戻す
LOGD("call iplImage2Pixcels");
iplImage2Pixcels(picDataPtr, edgedImage);
LOGD("cvReleaseImage edgedImage");
cvReleaseImage(&edgedImage);
edgedImage = NULL;
(*env)->ReleaseIntArrayElements(env, picData, picDataPtr, 0);
}
// jint配列からIplImageを作成
// alphaは捨てる。
IplImage* pixels2IplImage(int *pixels, int width, int height) {
int x, y, index;
IplImage *img = cvCreateImage(cvSize(width, height), IPL_DEPTH_8U, 3);
unsigned char* base = (unsigned char*) (img->imageData);
unsigned char* ptr;
for (y = 0; y < height; y++) {
ptr = base + y * img->widthStep;
for (x = 0; x < width; x++) {
index = x + y * width;
// B
ptr[3 * x] = pixels[index] & 0xFF;
// G
ptr[3 * x + 1] = pixels[index] >> 8 & 0xFF;
// R
ptr[3 * x + 2] = pixels[index] >> 16 & 0xFF;
// A
// pixels[index] >> 24 & 0xFF;
}
}
return img;
}
// IplImageからjint配列作成
void iplImage2Pixcels(int *pixcels, IplImage *srcImage)
{
int x, y;
int w,h;
w=srcImage->width;
h=srcImage->height;
unsigned char* base = (unsigned char*) (srcImage->imageData);
unsigned char* ptr;
for (y = 0; y < h; y++)
{
ptr = base + y * srcImage->widthStep;
for (x = 0; x < w; x++)
{
pixcels[x + y * w] =
(0xFF000000) | // A
(ptr[3 * x + 2] << 16) | // R
(ptr[3 * x + 1] << 8) | // G
(ptr[3 * x]); // B
}
}
}
Log.isLoggable(TAG, Log.VERBOSE) == false
Log.isLoggable(TAG, Log.DEBUG) == false
Log.isLoggable(TAG, Log.INFO) == true
Log.isLoggable(TAG, Log.WARN) == true
Log.isLoggable(TAG, Log.ERROR) == true
Log.d(TAG, msg); // ログレベルとは関係なく出力はされる。
if(Log.isLoggable(TAG, Log.DEBUG)) {
Log.d(TAG, msg); // ログレベルが「DEBUG」以上の場合、出力はされる。
}
$ ./adb shell setprop log.tag.<your_log_tag> <level>
$ ./adb shell stop
$ ./adb shell setprop log.tag.BABUKUMA DEBUG
$ ./adb shell start
Log.isLoggable(TAG, Log.VERBOSE) == false
Log.isLoggable(TAG, Log.DEBUG) == true
Log.isLoggable(TAG, Log.INFO) == true
Log.isLoggable(TAG, Log.WARN) == true
Log.isLoggable(TAG, Log.ERROR) == true
Log.isLoggable(TAG, Log.VERBOSE) == false
Log.isLoggable(TAG, Log.DEBUG) == false
Log.isLoggable(TAG, Log.INFO) == true
Log.isLoggable(TAG, Log.WARN) == true
Log.isLoggable(TAG, Log.ERROR) == true
Log.d(TAG, msg); // 로그레벨과 상관없이 출력됨.
if(Log.isLoggable(TAG, Log.DEBUG)) {
Log.d(TAG, msg); // 로그레벨이 「DEBUG」이상인 경우, 출력됨.
}
$ ./adb shell setprop log.tag.<your_log_tag> <level>
$ ./adb shell stop
$ ./adb shell setprop log.tag.BABUKUMA DEBUG
$ ./adb shell start
Log.isLoggable(TAG, Log.VERBOSE) == false
Log.isLoggable(TAG, Log.DEBUG) == true
Log.isLoggable(TAG, Log.INFO) == true
Log.isLoggable(TAG, Log.WARN) == true
Log.isLoggable(TAG, Log.ERROR) == true
# Application.mk
APP_PROJECT_PATH := $(call my-dir)
APP_MODULES := jnitest
package com.babukuma.android.test.jni;
import android.app.Activity;
import android.os.Bundle;
public class Main extends Activity {
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
}
public native String helloJNI();
public native int add(int a, int b);
}
/* DO NOT EDIT THIS FILE - it is machine generated */
#include<jni.h>
/* Header for class com_babukuma_android_test_jni_Main */
#ifndef _Included_com_babukuma_android_test_jni_Main
#define _Included_com_babukuma_android_test_jni_Main
#ifdef __cplusplus
extern"C" {
#endif
/*
* Class: com_babukuma_android_test_jni_Main
* Method: helloJNI
* Signature: ()Ljava/lang/String;
*/
JNIEXPORT jstring JNICALL Java_com_babukuma_android_test_jni_Main_helloJNI
(JNIEnv *, jobject);
/*
* Class: com_babukuma_android_test_jni_Main
* Method: add
* Signature: (II)I
*/
JNIEXPORT jint JNICALL Java_com_babukuma_android_test_jni_Main_add
(JNIEnv *, jobject, jint, jint);
#ifdef __cplusplus
}
#endif
#endif
#include<jni.h>
#include"jnitest.h"
JNIEXPORT jstring JNICALL Java_com_babukuma_android_test_jni_Main_helloJNI(
JNIEnv *env, jobject thisObj) {
jstring result = (*env)->NewStringUTF(env, "Hello JNI !");
return result;
}
JNIEXPORT jint JNICALL Java_com_babukuma_android_test_jni_Main_add(JNIEnv *env,
jobject thisObj, jint a, jint b) {
jint result = a + b;
return result;
}
# Android.mkLOCAL_PATH := $(call my-dir)
include$(CLEAR_VARS)
LOCAL_MODULE := jnitest
LOCAL_SRC_FILES := jnitest.c
include$(BUILD_SHARED_LIBRARY)
package com.babukuma.android.test.jni;
import android.app.Activity;
import android.os.Bundle;
import android.widget.TextView;
public class Main extends Activity {
static {
System.loadLibrary("jnitest");
}
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
// call helloJNI()
TextView result1 = (TextView) findViewById(R.id.text_result_1);
result1.setText(helloJNI());
// call add(1, 2)
TextView result2 = (TextView) findViewById(R.id.text_result_2);
result2.setText("1 + 2 = " + add(1, 2));
}
public native String helloJNI();
public native int add(int a, int b);
}
