Android应用之基本的组件（一）

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总的页面：




注意：按钮间方法的改变需要： android:onClick="clearNoti" 添加相应的方法即可

1.点击状态栏按钮时：

public void Notification(View v){

showNotification("亲来短信了","5557","我喜欢你", R.drawable.ic_launcher, R.drawable.ic_launcher);

}

public void showNotification(String tickerText,String contentTitle,String contentText ,int iconId,int notiId ){

notificationManager = (NotificationManager) getSystemService(NOTIFICATION_SERVICE);

//创建一个Notification

Notification notification = new Notification();

//设置发出信息的内容

notification.icon =iconId;

//设置发出的信息

notification.tickerText=tickerText;

//设置发出通知的时间

notification.when=System.currentTimeMillis();

//设置显示通知的默认的发声或者振动，Light效果

notification.defaults=Notification.DEFAULT_VIBRATE;//振动的效果

//3步： PendingIntent Android系统负责维护

PendingIntent pendingIntent = PendingIntent.getActivity(this, 0,getIntent() ,0);

//Notification notification = new Notification(R.drawable.ic_launcher, "有新的消息", System.currentTimeMillis());

//4步;设置更加详细的信息

notification.setLatestEventInfo(this, contentTitle,contentText,pendingIntent);

//5步：使用notificationManager对象的notify方法 显示Notification消息 需要制定 Notification的标识

notificationManager.notify(notiId,notification);

} 效果图：




2.点击清楚状态按钮时：

//清除的操作

public void clearNoti(View v ){

notificationManager.cancelAll();//清除所有

}




3点击创建对对话框时： public void DiaLog(){

AlertDialog alertDialog = new AlertDialog.Builder(this)

.setIcon(R.drawable.mw)

.setTitle("DiaLog").setMessage("是否创建文件")

.setPositiveButton("确认",new DialogInterface.OnClickListener() {

@Override

public void onClick(DialogInterface dialog, int which) {



new AlertDialog.Builder(MainActivity.this).setMessage("您点击了确认按钮，文件已经被创建").show();

}

})

.setNegativeButton("取消",new DialogInterface.OnClickListener() {

@Override

public void onClick(DialogInterface dialog, int which) {

new AlertDialog.Builder(MainActivity.this)

.setMessage("您已经选择了取消的按钮,该文件不会被创建").create()

.show();

}

}).show();

}







4。点击简单列表对话框

public void Simplelistdialog(View v){

final String items[] = {"java","php","3g",".net"};

AlertDialog alertDialog = new AlertDialog.Builder(this)

.setTitle("简单列表对话框").setItems(items, new DialogInterface.OnClickListener() {

@Override

public void onClick(DialogInterface dialog, int which) {

Toast.makeText(getApplicationContext(), "亲，你喜欢的科目是："+items[which],Toast.LENGTH_LONG).show();

}

}).show();



}




5.点击单选列表对话框

public void Radiolistdialog(View v){

final String items[] = {"java","php","3g",".net"};

AlertDialog alertDialog = new AlertDialog.Builder(this).setTitle("单选列表对话框")

//.setSingleChoiceItems(items, checkedItem, listener)

// .setSingleChoiceItems(itemsId, checkedItem, listener)

//.setSingleChoiceItems(cursor, checkedItem, labelColumn, listener) labelColumn如果数据源是数据集

//数据集中的某一列会作为列表对话框的数据加载的列表框中，该参数表示该列的名称(字段名称)

.setSingleChoiceItems(items,1, new DialogInterface.OnClickListener() {

@Override

public void onClick(DialogInterface dialog, int which) {

Toast.makeText(getApplicationContext(), "亲，你喜欢的科目是："+items[which],Toast.LENGTH_LONG).show();

}

}).show();

}




7.点击多选列表对话框

public void Multiselectlistdialog(View v){

final String items[]={"Java","PHP","3G",".NET"};

new AlertDialog.Builder(this).setTitle("多选列表对话框")

//.setMultiChoiceItems(itemsId, checkedItems, listener)

//.setMultiChoiceItems(cursor, isCheckedColumn, labelColumn, listener)

.setMultiChoiceItems(items, new boolean[]{false,true,true,false}, new DialogInterface.OnMultiChoiceClickListener() {

@Override

public void onClick(DialogInterface dialog, int which, boolean isChecked) {

if(isChecked){

Toast.makeText(getApplicationContext(), "亲，你选中的科目是："+items[which], Toast.LENGTH_LONG).show();

}

}

}).setPositiveButton("确认", new DialogInterface.OnClickListener() {

@Override

public void onClick(DialogInterface dialog, int which) {

Toast.makeText(getApplicationContext(), "亲，你喜欢的科目有：", Toast.LENGTH_LONG).show();

}

}).show();

}


8.点击进度条

public void ProgressDialog(View v){

handler = new Handler(){

@Override

public void handleMessage(Message msg) {

super.handleMessage(msg);

switch(msg.what){

case PRO:

if(PRO>=MAX_PROGRESS){

//重新设置

progress=0;

progressDialog.dismiss();//销毁对话框



}else{

progress++;

progressDialog.incrementProgressBy(1);

//延迟发送消息

handler.sendEmptyMessageDelayed(PRO,100);

}

break;

default:

break;

}

}

};

progressDialog = new ProgressDialog(this);

progressDialog.setIcon(R.drawable.mw);

progressDialog.setTitle("正在处理数据......");

progressDialog.setMessage("请稍后.....");

progressDialog.setProgressStyle(ProgressDialog.STYLE_SPINNER); //设置进度条对话框 (水平，旋体)

//设置最大值

progressDialog.setMax(MAX_PROGRESS);

progressDialog.setButton("暂停",new DialogInterface.OnClickListener() {

@Override

public void onClick(DialogInterface dialog, int which) {

handler.removeMessages(PRO);

}

});

progressDialog.setButton2("取消", new DialogInterface.OnClickListener() {

@Override

public void onClick(DialogInterface dialog, int which) {

//删除消息队列

handler.removeMessages(PRO);

//恢复进度初始值

progress=0;

progressDialog.setProgress(progress);

}

});

//显示

progressDialog.show();

//必须设置到show之后，show之前可能bug

progress = (progress>0) ?progress:0;

progressDialog.setProgress(progress);



//线程

handler.sendEmptyMessage(PRO);

}




还有一种效果是：




9.点击自定义表对话框

public void MyDialog(View v){



LayoutInflater layoutInflater = getLayoutInflater();

View view = layoutInflater.inflate(R.layout.activity_main, null); //R.layout.activty_main自定义的布局文件这里可以是自己随意定义的

new AlertDialog.Builder(this).setView(view).setTitle("自定义的对话框").setPositiveButton("确认按钮", new DialogInterface.OnClickListener() {

@Override

public void onClick(DialogInterface dialog, int which) {

//处理

}

}).show();



}