惯用代码 - scroll listview ，去掉系统自带...- 小弟我的手机

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▪惯用代码常用代码 1 活动管理器权限 <uses-permission android:name="android.permission.GET_TASKS"/> 代码 ActivityManager activityManager = (ActivityManager) getSystemService(Context.ACTIVITY_SERVICE); 2 警报管理器权限代.........

▪ scroll listview ，去掉系统自带的滚动边沿效果 scroll listview ，去掉系统自带的滚动边缘效果去掉listview顶部和底部模糊边缘:android:fadingEdge="none" 1 楼 leif2006 2012-04-23 没用，还有其他办法吗。？ 2 楼 alp1014 2.........

▪ 小弟我的手机我的手机拨号键输入 *#*#4636#*#* 能看到手机的一些信息，包括ip。 ......

[1]惯用代码

来源: 互联网发布时间: 2014-02-18

常用代码

1 活动管理器

权限 <uses-permission android:name="android.permission.GET_TASKS"/>

代码 ActivityManager activityManager = (ActivityManager) getSystemService(Context.ACTIVITY_SERVICE);

2 警报管理器权限

代码 AlarmManager alarmManager = (AlarmManager) getSystemService(Context.ALARM_SERVICE);

3 音频管理器权限

代码 AudioManager audioManager = (AudioManager) getSystemService(Context.AUDIO_SERVICE);

4 剪贴板管理器权限

代码 ClipboardManager clipboardManager = (ClipboardManager) getSystemService(Context.CLIPBOARD_SERVICE);

5 连接管理器权限 <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"/>

代码 ConnectivityManager connectivityManager = (ConnectivityManager) getSystemService(Context.CONNECTIVIT

6 输入法管理器权限

代码 InputMethodManager inputMethodManager = (InputMethodManager) getSystemService(Context.INPUT_METHOD_S)

7 键盘管理器权限

代码 KeyguardManager keyguardManager = (KeyguardManager) getSystemService(Context.KEYGUARD_SERVICE);

8 布局解压器管理器权限

代码 LayoutInflater layoutInflater = (LayoutInflater) getSystemService(Context.LAYOUT_INFLATER_SERVICE);

9 位置管理器权限

代码 LocationManager locationManager = (LocationManager) getSystemService(Context.LOCATION_SERVICE);

10 通知管理器权限

代码 NotificationManager notificationManager = (NotificationManager) getSystemService(Context.NOTIFICATIO)

11 电源管理器权限 <uses-permission android:name="android.permission.DEVICE_POWER"/>

代码 PowerManager powerManager = (PowerManager) getSystemService(Context.POWER_SERVICE);

12 搜索管理器权限

代码 SearchManager searchManager = (SearchManager) getSystemService(Context.SEARCH_SERVICE);

13 传感器管理器权限

代码 SensorManager sensorManager = (SensorManager) getSystemService(Context.SENSOR_SERVICE);

14 电话管理器权限 <uses-permission android:name="android.permission.READ_PHONE_STATE"/>

代码 TelephonyManager telephonyManager = (TelephonyManager) getSystemService(Context.TELEPHONY_SERVICE);

15 振动器权限 <uses-permission android:name="android.permission.VIBRATE"/>

代码 Vibrator vibrator = (Vibrator) getSystemService(Context.VIBRATOR_SERVICE);

16 墙纸权限 <uses-permission android:name="android.permission.SET_WALLPAPER"/>

代码 WallpaperService wallpaperService = (WallpaperService) getSystemService(Context.WALLPAPER_SERVICE);

17 Wi-Fi管理器权限 <uses-permission android:name="android.permission.ACCESS_WIFI_STATE"/>

代码 WifiManager wifiManager = (WifiManager) getSystemService(Context.WIFI_SERVICE);

18 窗口管理器权限

代码 WindowManager windowManager = (WindowManager) getSystemService(Context.WINDOW_SERVICE);

19获取用户android手机机器码和手机号

TelephonyManager tm = (TelephonyManager)context.getSystemService(Context.TELEPHONY_SERVICE);

　　String imei = tm.getDeviceId();//获取机器码

　　String tel = tm.getLine1Number();//获取手机号

20设置为横屏

setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE);

21无标题栏、全屏

//无标题栏

requestWindowFeature(Window.FEATURE_NO_TITLE); //要在setcontentView之前哦

//全屏模式

getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,

WindowManager.LayoutParams.FLAG_FULLSCREEN);

22 获取屏幕宽高

DisplayMetrics dm = new DisplayMetrics();

//获取窗口属性

getWindowManager().getDefaultDisplay().getMetrics(dm);

int screenWidth = dm.widthPixels;//320

int screenHeight = dm.heightPixels;//480

23使用样式表

在 res/values下面新建一个XML文件style.xml ，然后写下如下代码

<?xml version="1.0" encoding="utf-8"?>

</style>

</style>

</resources>

使用：

<TextView

//调用style

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:text="样式1"

android:id="@+id/Tv1">

</TextView>

24使用布局文件，切换布局

建立两个布局文件

在事件里面写代码

@Override

public void onClick(View v) {

helllo.this.setContentView(R.layout.layout2);

Button tempBtn=(Button)findViewById(R.id.btn_click1);

tempBtn.setOnClickListener(new Button.OnClickListener(){

@Override

public void onClick(View v) {

helllo.this.setContentView(R.layout.xxx);

}

});

=========================================================================

1.Intent用法

Intent it = new Intent(Activity.Main.this, Activity2.class);

startActivity(it);

2. 向下一个Activity传递数据（使用Bundle和Intent.putExtras）

Intent it = new Intent(Activity.Main.this, Activity2.class);

Bundle bundle=new Bundle();

bundle.putString("name", "This is from MainActivity!");

it.putExtras(bundle); // it.putExtra(“test”, "shuju”);

startActivity(it); // startActivityForResult(it,REQUEST_CODE);

对于数据的获取可以采用：

Bundle bundle=getIntent().getExtras();

String name=bundle.getString("name");

3. 向上一个Activity返回结果（使用setResult，针对startActivityForResult(it,REQUEST_CODE)启动的Activity）

Intent intent=getIntent();

Bundle bundle2=new Bundle();

bundle2.putString("name", "This is from ShowMsg!");

intent.putExtras(bundle2);

setResult(RESULT_OK, intent);

4. 回调上一个Activity的结果处理函数（onActivityResult）

@Override

protected void onActivityResult(int requestCode, int resultCode, Intent data) {

// TODO Auto-generated method stub

super.onActivityResult(requestCode, resultCode, data);

if (requestCode==REQUEST_CODE){

if(resultCode==RESULT_CANCELED)

setTitle("cancle");

else if (resultCode==RESULT_OK) {

String temp=null;

Bundle bundle=data.getExtras();

if(bundle!=null) temp=bundle.getString("name");

setTitle(temp);

}

显示网页

1. Uri uri = Uri.parse("http://google.com");

2. Intent it = new Intent(Intent.ACTION_VIEW, uri);

3. startActivity(it);

显示地图

1. Uri uri = Uri.parse("geo:38.899533,-77.036476");

2. Intent it = new Intent(Intent.ACTION_VIEW, uri);

3. startActivity(it);

4. //其他 geo URI 範例

5. //geo:latitude,longitude

6. //geo:latitude,longitude?z=zoom

7. //geo:0,0?q=my+street+address

8. //geo:0,0?q=business+near+city

9. //google.streetview:cbll=lat,lng&cbp=1,yaw,,pitch,zoom&mz=mapZoom

路径规划

1. Uri uri = Uri.parse("http://maps.google.com/maps?f=d&saddr=startLat startLng&daddr=endLat endLng&hl=en");

2. Intent it = new Intent(Intent.ACTION_VIEW, uri);

3. startActivity(it);

4. //where startLat, startLng, endLat, endLng are a long with 6 decimals like: 50.123456

打电话

1. //叫出拨号程序

2. Uri uri = Uri.parse("tel:0800000123");

3. Intent it = new Intent(Intent.ACTION_DIAL, uri);

4. startActivity(it);

1. //直接打电话出去

2. Uri uri = Uri.parse("tel:0800000123");

3. Intent it = new Intent(Intent.ACTION_CALL, uri);

4. startActivity(it);

5. //用這個，要在 AndroidManifest.xml 中，加上

6. //<uses-permission id="android.permission.CALL_PHONE" />

传送SMS/MMS

1. //调用短信程序

2. Intent it = new Intent(Intent.ACTION_VIEW, uri);

3. it.putExtra("sms_body", "The SMS text");

4. it.setType("vnd.android-dir/mms-sms");

5. startActivity(it);

1. //传送消息

2. Uri uri = Uri.parse("smsto://0800000123");

3. Intent it = new Intent(Intent.ACTION_SENDTO, uri);

4. it.putExtra("sms_body", "The SMS text");

5. startActivity(it);

1. //传送 MMS

2. Uri uri = Uri.parse("content://media/external/images/media/23");

3. Intent it = new Intent(Intent.ACTION_SEND);

4. it.putExtra("sms_body", "some text");

5. it.putExtra(Intent.EXTRA_STREAM, uri);

6. it.setType("image/png");

7. startActivity(it);

传送 Email

1. Uri uri = Uri.parse("mailto:xxx@abc.com");

2. Intent it = new Intent(Intent.ACTION_SENDTO, uri);

3. startActivity(it);

1. Intent it = new Intent(Intent.ACTION_SEND);

2. it.putExtra(Intent.EXTRA_EMAIL, "me@abc.com");

3. it.putExtra(Intent.EXTRA_TEXT, "The email body text");

4. it.setType("text/plain");

5. startActivity(Intent.createChooser(it, "Choose Email Client"));

1. Intent it=new Intent(Intent.ACTION_SEND);

2. String[] tos={"me@abc.com"};

3. String[] ccs={"you@abc.com"};

4. it.putExtra(Intent.EXTRA_EMAIL, tos);

5. it.putExtra(Intent.EXTRA_CC, ccs);

6. it.putExtra(Intent.EXTRA_TEXT, "The email body text");

7. it.putExtra(Intent.EXTRA_SUBJECT, "The email subject text");

8. it.setType("message/rfc822");

9. startActivity(Intent.createChooser(it, "Choose Email Client"));

1. //传送附件

2. Intent it = new Intent(Intent.ACTION_SEND);

3. it.putExtra(Intent.EXTRA_SUBJECT, "The email subject text");

4. it.putExtra(Intent.EXTRA_STREAM, "file:///sdcard/mysong.mp3");

5. sendIntent.setType("audio/mp3");

6. startActivity(Intent.createChooser(it, "Choose Email Client"));

播放多媒体

Uri uri = Uri.parse("file:///sdcard/song.mp3");

Intent it = new Intent(Intent.ACTION_VIEW, uri);

it.setType("audio/mp3");

startActivity(it);

Uri uri = Uri.withAppendedPath(MediaStore.Audio.Media.INTERNAL_CONTENT_URI, "1");

Intent it = new Intent(Intent.ACTION_VIEW, uri);

startActivity(it);

Market 相关

1. //寻找某个应用

2. Uri uri = Uri.parse("market://search?q=pname:pkg_name");

3. Intent it = new Intent(Intent.ACTION_VIEW, uri);

4. startActivity(it);

5. //where pkg_name is the full package path for an application

1. //显示某个应用的相关信息

2. Uri uri = Uri.parse("market://details?id=app_id");

3. Intent it = new Intent(Intent.ACTION_VIEW, uri);

4. startActivity(it);

5. //where app_id is the application ID, find the ID

6. //by clicking on your application on Market home

7. //page, and notice the ID from the address bar

Uninstall 应用程序

1. Uri uri = Uri.fromParts("package", strPackageName, null);

2. Intent it = new Intent(Intent.ACTION_DELETE, uri);

3. startActivity(it);

===============================================================================

1 调用浏览器载入某网址

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Uri uri = Uri.parse("http://www.baidu.com");

Intent it = new Intent(Intent.ACTION_VIEW, uri);

startActivity(it);

2 Broadcast接收系统广播的intent 监控应用程序包的安装删除

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public class getBroadcast extends BroadcastReceiver {

@Override

public void onReceive(Context context, Intent intent) {

if(Intent.ACTION_PACKAGE_ADDED.equals(intent.getAction())){

Toast.makeText(context, "有应用被添加", Toast.LENGTH_LONG).show();

}

else if(Intent.ACTION_PACKAGE_REMOVED.equals(intent.getAction())){

Toast.makeText(context, "有应用被删除", Toast.LENGTH_LONG).show();

}

else if(Intent.ACTION_PACKAGE_REPLACED.equals(intent.getAction())){

Toast.makeText(context, "有应用被替换", Toast.LENGTH_LONG).show();

}

else if(Intent.ACTION_CAMERA_BUTTON.equals(intent.getAction())){

Toast.makeText(context, "按键", Toast.LENGTH_LONG).show();

}

需要声明的权限如下AndroidManifest.xml

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<?xml version="1.0" encoding="utf-8"?>

<manifest xmlns:android="http://schemas.android.com/apk/res/android"

package="zy.Broadcast"

android:versionCode="1"

android:versionName="1.0">

<activity android:name=".Broadcast"

android:label="@string/app_name">

<intent-filter>

</intent-filter>

</activity>

<intent-filter>

</intent-filter>

</receiver>

</application>

<uses-sdk android:minSdkVersion="3" />

</manifest>

3 使用Toast输出一个字符串

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public void DisplayToast(String str)

{

Toast.makeText(this,str,Toast.LENGTH_SHORT).show();

}

4 把一个字符串写进文件

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public void writefile(String str,String path )

{

File file;

FileOutputStream out;

try {

//创建文件

file = new File(path);

file.createNewFile();

//打开文件file的OutputStream

out = new FileOutputStream(file);

String infoToWrite = str;

//将字符串转换成byte数组写入文件

out.write(infoToWrite.getBytes());

//关闭文件file的OutputStream

out.close();

} catch (IOException e) {

//将出错信息打印到Logcat

DisplayToast(e.toString());

}

5 把文件内容读出到一个字符串

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public String getinfo(String path)

{

File file;

String str="";

FileInputStream in;

try{

//打开文件file的InputStream

file = new File(path);

in = new FileInputStream(file);

//将文件内容全部读入到byte数组

int length = (int)file.length();

byte[] temp = new byte[length];

in.read(temp, 0, length);

//将byte数组用UTF-8编码并存入display字符串中

str = EncodingUtils.getString(temp,TEXT_ENCODING);

//关闭文件file的InputStream

in.close();

}

catch (IOException e) {

DisplayToast(e.toString());

}

return str;

}

6 调用Android installer 安装和卸载程序

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Intent intent = new Intent(Intent.ACTION_VIEW);

intent.setDataAndType(Uri.fromFile(new File("/sdcard/WorldCupTimer.apk")), "application/vnd.android.package-archive");

startActivity(intent); //安装程序

Uri packageURI = Uri.parse("package:zy.dnh");

Intent uninstallIntent = new Intent(Intent.ACTION_DELETE, packageURI);

startActivity(uninstallIntent);//正常卸载程序

7 结束某个进程

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activityManager.restartPackage(packageName);

8 设置默认来电铃声

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public void setMyRingtone()

{

File k = new File("/sdcard/Shall We Talk.mp3"); // 设置歌曲路径

ContentValues values = new ContentValues();

values.put(MediaStore.MediaColumns.DATA, k.getAbsolutePath());

values.put(MediaStore.MediaColumns.TITLE, "Shall We Talk");

values.put(MediaStore.MediaColumns.SIZE, 8474325);

values.put(MediaStore.MediaColumns.MIME_TYPE, "audio/mp3");

values.put(MediaStore.Audio.Media.ARTIST, "Madonna");

values.put(MediaStore.Audio.Media.DURATION, 230);

values.put(MediaStore.Audio.Media.IS_RINGTONE, true);

values.put(MediaStore.Audio.Media.IS_NOTIFICATION, false);

values.put(MediaStore.Audio.Media.IS_ALARM, false);

values.put(MediaStore.Audio.Media.IS_MUSIC, false);

// Insert it into the database

Uri uri = MediaStore.Audio.Media.getContentUriForPath(k.getAbsolutePath());

Uri newUri = this.getContentResolver().insert(uri, values);

RingtoneManager.setActualDefaultRingtoneUri(this, RingtoneManager.TYPE_RINGTONE, newUri);

;}

需要的权限

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<uses-permission android:name="android.permission.WRITE_SETTINGS"></uses-permission>

[2] scroll listview ，去掉系统自带的滚动边沿效果

来源: 互联网发布时间: 2014-02-18

scroll listview ，去掉系统自带的滚动边缘效果
去掉listview顶部和底部模糊边缘:android:fadingEdge="none"

1 楼 leif2006 2012-04-23

没用，还有其他办法吗。？

2 楼 alp1014 2012-04-24

我在程序中试过，没有问题的

[3] 小弟我的手机

来源: 互联网发布时间: 2014-02-18

我的手机

拨号键输入 *#*#4636#*#* 能看到手机的一些信息，包括ip。