Android 珍藏(一)

1，调web浏览器Uri myBlogUri = Uri.parse("http://xxxxx.com");returnIt = new Intent(Intent.ACTION_VIEW, myBlogUri);2，地图Uri mapUri = Uri.parse("geo:38.899533,-77.036476");returnIt = new Intent(Intent.ACTION_VIEW, mapUri);3，调拨打电话界面Uri telUri = Uri.parse("tel:100861");returnIt = new Intent(Intent.ACTION_DIAL, telUri);4，直接拨打电话Uri callUri = Uri.parse("tel:100861");returnIt = new Intent(Intent.ACTION_CALL, callUri);5，卸载Uri uninstallUri = Uri.fromParts("package", "xxx", null);returnIt = new Intent(Intent.ACTION_DELETE, uninstallUri);6，安装Uri installUri = Uri.fromParts("package", "xxx", null);returnIt = new Intent(Intent.ACTION_PACKAGE_ADDED, installUri);7，播放Uri playUri = Uri.parse("file:///sdcard/download/everything.mp3");returnIt = new Intent(Intent.ACTION_VIEW, playUri);8，掉用发邮件Uri emailUri = Uri.parse("mailto:[email protected]");returnIt = new Intent(Intent.ACTION_SENDTO, emailUri);9，发邮件returnIt = new Intent(Intent.ACTION_SEND);String[] tos = { "[email protected]" };String[] ccs = { "[email protected]" };returnIt.putExtra(Intent.EXTRA_EMAIL, tos);returnIt.putExtra(Intent.EXTRA_CC, ccs);returnIt.putExtra(Intent.EXTRA_TEXT, "body");returnIt.putExtra(Intent.EXTRA_SUBJECT, "subject");returnIt.setType("message/rfc882");Intent.createChooser(returnIt, "Choose Email Client");10，发短信Uri smsUri = Uri.parse("tel:100861");returnIt = new Intent(Intent.ACTION_VIEW, smsUri);returnIt.putExtra("sms_body", "yyyy");returnIt.setType("vnd.android-dir/mms-sms");11，直接发邮件Uri smsToUri = Uri.parse("smsto://100861");returnIt = new Intent(Intent.ACTION_SENDTO, smsToUri);returnIt.putExtra("sms_body", "yyyy");12，发彩信Uri mmsUri = Uri.parse("content://media/external/images/media/23");returnIt = new Intent(Intent.ACTION_SEND);returnIt.putExtra("sms_body", "yyyy");returnIt.putExtra(Intent.EXTRA_STREAM, mmsUri);returnIt.setType("image/png");最后一步：startActivity(returnIt)如何把Button或者ImageButton的背景设为透明或者半透明？android:background=”@android:color/transparent”orandroid:background="@null"or半透明<Button android:background="#e0000000"/>透明<Button android:background="#00000000"/>如何在TextView显示HTML？TextView tv=(TextView)findViewById(R.id.tv);Spanned text = Html.fromHtml("<a href='http://www.baidu.com'>baidu</a>");tv.setText(text);如果html中有图片，请参考这篇文章：http://da-en.iteye.com/blog/712415如何修改软键盘默认为数字输入？EditText editText = (EditText) findViewById(R.id.et);editText.setInputType(InputType.TYPE_CLASS_NUMBER); 13.如何阻止EditText自动弹出输入法？ editText.setOnTouchListener(new OnTouchListener() {                        public boolean onTouch(View v, MotionEvent event) {                //记住EditText的InputType现在是password           int inType = editText.getInputType(); // backup the input type          editText.setInputType(InputType.TYPE_NULL); // disable soft input              editText.onTouchEvent(event); // call native handler              editText.setInputType(inType); // restore input type             editText.setSelection(editText.getText().length());          return true;                            }  });  14.如何自定义标题栏？     //首先需要请求对FEATURE_CUSTOM_TITLE操作      requestWindowFeature(Window.FEATURE_CUSTOM_TITLE);      view = new SnakeView(this);      setContentView(view);      //然后设置      getWindow().setFeatureInt(Window.FEATURE_CUSTOM_TITLE, R.layout.title);  R.layout.title对应的布局文件：     <?xml version="1.0" encoding="UTF-8"?>      <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"      android:orientation="horizontal"      android:layout_width="fill_parent"      android:layout_height="fill_parent"     >          <TextView          android:id="@+id/title"          android:layout_width="fill_parent"          android:layout_height="wrap_content"          android:layout_weight="1"          android:layout_gravity="center"          android:gravity="center"           android:text="Snake"          android:textColor="@color/red"          />      </LinearLayout>  这里需要注意，最好不要修改背景色，否则会出现标题栏不会被充满的问题（会露马脚啦：）），如果确实需要修改背景色又不漏马脚，那么请看这篇文章：http://www.iteye.com/topic/760314 15.如何隐藏标题栏?即：应用程序名称的那一栏     //注意：2行代码的先后顺序不能颠倒      requestWindowFeature(Window.FEATURE_NO_TITLE);      setContentView(R.layout.main);      //同时使用隐藏状态栏可以使可视面积最大化！      或者也可以在Manifest文件中这样设置：      <application android:icon="@drawable/icon"        android:label="@string/app_name"        android:theme="@android:style/Theme.NoTitleBar">
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