Android短信批量删除效果

前段时间在做一个项目的后期维护时，对方提出了把短信做成可以批量删除、、然后冥思苦想，终于想到了一个可执行方案、、那边的要求时这样的、、进入短信的草稿箱，然后点击一条短信，弹出批量删除对话框，然后有一个全选框，可以进行多项选择，进行删除、、、、

 

实现过程如下：首先建立一个主布局文件，主要有两个listview，然后是4个按钮，我们要做的是把四个按钮中的3个设为不可见，一个设为可见，listview也是只有一个可见，其他三个设为不可见

主xml文件：sms_store.xml

 

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:orientation="vertical" >

    <include layout="@layout/head" />
    <!-- 动态显示界面 -->

    <LinearLayout
        android:id="@+id/body"
        android:layout_width="fill_parent"
        android:layout_height="fill_parent"
        android:layout_weight="0.95"
        android:orientation="vertical"
         android:background="#F5F8FD"
        >

        

            <ListView
                android:id="@+id/smslist"
                android:layout_width="fill_parent"
                android:layout_height="wrap_content" 
                android:visibility="visible"/>
            <!-- 批量删除下的列表 -->
             <ListView
                android:id="@+id/smslist2"
                android:layout_width="fill_parent"
                android:layout_height="wrap_content" 
                android:visibility="gone"/>
       
    </LinearLayout>

    <include layout="@layout/sms_foot" />

</LinearLayout>

 sms_foot.xml文件

 

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/bottomlist"
    android:layout_width="fill_parent"
    android:layout_height="wrap_content"
    android:background="@drawable/tab_botton"
    android:orientation="vertical" >

    <LinearLayout
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:orientation="horizontal" 
        >

        <Button
            android:id="@+id/btn_choceall"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:background="@drawable/bt_background"
            android:gravity="center"
            android:text="全标记"
            android:textColor="#ffffffff"
            android:visibility="gone" 
            android:width="50dp"
            android:layout_weight="1"/>

        <Button
            android:id="@+id/btn_delete"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:background="@drawable/bt_background"
            android:gravity="center"
            android:text="删除"
            android:layout_weight="1"
            android:textColor="#ffffffff"
            android:visibility="gone" 
            android:width="50dp"/>

        <Button
            android:id="@+id/backbefore"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:background="@drawable/bt_background"
            android:gravity="center"
            android:text="返回"
            android:layout_weight="1"
            android:textColor="#ffffffff"
            android:visibility="gone" 
            android:width="50dp"/>
    </LinearLayout>

    <Button
        android:id="@+id/smsback"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:background="@drawable/bt_background"
        android:gravity="center"
        android:layout_gravity="right"
        android:text="返回"
        android:textColor="#ffffffff"
        android:visibility="visible" 
        android:width="50dp"/>
</LinearLayout>

 接下载建立两个listview的主体，一个是普通的文本，一个是多选框的文本

smslist.xml

 

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:orientation="vertical" >

    <TextView
        android:id="@+id/title"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:textSize="25dip"
        android:ellipsize="end"
        android:singleLine="true"
        android:textColor="@color/black"
        android:text="TextView" />

</LinearLayout>

 sms_delete.xml

 

<?xml version="1.0" encoding="utf-8"?>
<CheckedTextView xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/content"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:checkMark="?android:attr/listChoiceIndicatorMultiple"
    android:ellipsize="end"
    android:singleLine="true"
    android:textColor="@color/black"
    android:textSize="20dip" >

</CheckedTextView>

 在Activity里面建立

Button smsback, smsbackbrfore,btChoseall, btDelete;

ListView listv, listv2;

并且setContentView(R.layout.sms_store);

然后findid一下

 

smsback = (Button) findViewById(R.id.smsback);

smsbackbrfore = (Button) findViewById(R.id.backbefore);

btChoseall = (Button) findViewById(R.id.btn_choceall);// 全选按钮

btDelete = (Button) findViewById(R.id.btn_delete);// 删除按钮

listv = (ListView) findViewById(R.id.smslist);

listv2 = (ListView) findViewById(R.id.smslist2);

然后创建一个方法更新视图

 

private void updataview() {

listv.setVisibility(View.VISIBLE);

smsback.setVisibility(View.VISIBLE);

listv2.setVisibility(View.GONE);

smsbackbrfore.setVisibility(View.GONE);

btChoseall.setVisibility(View.GONE);

btDelete.setVisibility(View.GONE);

list = getData(status);

if (list == null) {

// 表示没有数据，显示数据为空

} else {

// 表示有数据

listViewAdapter = new ListViewAdapter(MsgStoreActivity.this, list,

R.layout.smslist, new String[] { "content" },

new int[] { R.id.title });

listv.setAdapter(listViewAdapter);

}

}

得到数据库的返回数据

 

private List<Map<String, String>> getData(String status) {

Cursor cursor = new DatabaseHelper().fetchData(MsgStoreActivity.this,

DataDefine.TABLE_MSG, Integer.valueOf(status));

List<Map<String, String>> list = new ArrayList<Map<String, String>>();

int i = 1;

System.out.println(cursor.getCount());

if (cursor != null && cursor.getCount() > 0) {

// 有数据

do {

Map<String, String> map = new HashMap<String, String>();

map.put("id", cursor.getString(cursor

.getColumnIndex(DataDefine.KEY_MSG_ID_AUTO_INCREMENT)));

String s = cursor.getString(cursor

.getColumnIndex(DataDefine.KEY_MSG_CONTENT));

// if(s.length()>10){

// s=s.substring(0,10)+"......";

// }

map.put("content", (i++) + ". " + s);

list.add(map);

} while (cursor.moveToNext());

cursor.close();

return list;

} else {

cursor.close();

Map<String, String> map = new HashMap<String, String>();

map.put("id", null);

map.put("content", "当前没有短信！");

list.add(map);

return list;

}

 

}

 

当点击批量删除时

 

listv.setVisibility(View.GONE);

smsback.setVisibility(View.GONE);

listv2.setVisibility(View.VISIBLE);

smsbackbrfore.setVisibility(View.VISIBLE);

btChoseall.setVisibility(View.VISIBLE);

btDelete.setVisibility(View.VISIBLE);

ListViewAdapter adapter = new ListViewAdapter(MsgStoreActivity.this, list, R.layout.sms_delete,

new String[] { "content" }, new int[] { R.id.content });

listv2.setChoiceMode(ListView.CHOICE_MODE_MULTIPLE);

listv2.setAdapter(adapter);

创建删除和全选按钮事件

 

btChoseall.setOnClickListener(new View.OnClickListener() {

 

@Override

public void onClick(View v) {

CheckedTextView cv;

for (int i = 0; i < listv2.getCount(); i++) {

cv = (CheckedTextView) listv2.getChildAt(i);

cv.setChecked(true);

}

 

}

});

btDelete.setOnClickListener(new View.OnClickListener() {

@Override

public void onClick(View v) {

CheckedTextView cv;

int count = 0;

for (int i = 0; i < listv2.getCount(); i++) {

cv = (CheckedTextView) listv2.getChildAt(i);

if (cv.isChecked()) {

count = 1;

break;

}

}

 

if (count == 1)

adDelete.show();

else

showToast(MsgStoreActivity.this, "未选中信息!");

 

}

});

创建删除按钮点击后的弹出对话框事件

 

adDelete = new AlertDialog.Builder(MsgStoreActivity.this)

.setTitle("删除").setMessage("确定要删除信息?")

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

 

@Override

public void onClick(DialogInterface dialog, int which) {

dialog.dismiss();

 

}

})

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

 

@Override

public void onClick(DialogInterface dialog, int which) {

CheckedTextView cv;

for (int i = 0; i < listv2.getCount(); i++) {

cv = (CheckedTextView) listv2.getChildAt(i);

if (cv.isChecked()) {

Map<?, ?> map = (Map<?, ?>) listv.getAdapter()

.getItem(i);

new DatabaseHelper().delete(

MsgStoreActivity.this,

Integer.valueOf((String) map.get("id")));

}

}

showToast(MsgStoreActivity.this, "信息已删除!");

updataview();

}

}).create();

评论

1 楼 h00473 2013-04-30  

希望能分享下你的源码，谢谢了