根据项目需求Dialog简单封装

来源：互联网发布：淘宝考研资料是真的吗编辑：程序博客网时间：2024/05/19 22:02

创建一个类继承自Dialog，重写里面的构造方法

 public class OperationFileDialog extends Dialog {    /*上下文*/    private Context context;    /*标题*/    private TextView title;    /*内容*/    private LinearLayout content;    /*取消*/    private Button cancel;    /*确定*/    private Button ok;    /*编辑框*/    private EditText editText;    /*文本*/    private TextView textView;    /*点击事件方法*/    private OnClick onClick;    public OperationFileDialog(Context context) {        super(context);        this.context = context;        initView();    }    public OperationFileDialog(Context context, int themeResId) {        super(context, themeResId);        this.context = context;        initView();    }    protected OperationFileDialog(Context context, boolean cancelable, OnCancelListener cancelListener) {        super(context, cancelable, cancelListener);        this.context = context;        initView();    }    private void initView() {    //给整个window设置成透明色        getWindow().setBackgroundDrawableResource(android.R.color.transparent);    //设置dialog布局文件        setContentView(R.layout.dialog_file_operation);    /*找到空间*/        title = (TextView) findViewById(R.id.dialog_title);        content = (LinearLayout) findViewById(R.id.dialog_content);        cancel = (Button) findViewById(R.id.dialog_cancel);        ok = (Button) findViewById(R.id.dialog_ok);    //取消的点击事件        cancel.setOnClickListener(new View.OnClickListener() {            @Override            public void onClick(View v) {                if (onClick != null) {                    //onClick是一个接口，调用接口中的抽象方法cancel，cancel中的具体实现在调用这个dialog的地方                    onClick.cancel();                }                dismiss();            }        });    //确定的点击事件        ok.setOnClickListener(new View.OnClickListener() {            @Override            public void onClick(View v) {                if (onClick != null) {                    String content = "";                    if (editText != null) {                        content = editText.getText().toString();                    }                    onClick.ok(content);                }                dismiss();            }        });        setOnShowListener(new OnShowListener() {            @Override            public void onShow(DialogInterface dialog) {                if (editText != null) {                    InputMethodManager imm = (InputMethodManager) context.getSystemService(Context.INPUT_METHOD_SERVICE);                    imm.showSoftInput(editText, InputMethodManager.SHOW_IMPLICIT);                }            }        });    }    /*设置String标题*/    public OperationFileDialog setOpTitle(String text) {        title.setText(text);        return this;    }    /*设置int标题*/    public OperationFileDialog setOpTitle(int id) {        title.setText(id);        return this;    }    /*设置取消String内容*/    public OperationFileDialog setCancel(String text) {        cancel.setText(text);        return this;    }    /*设置取消int内容*/    public OperationFileDialog setCancel(int id) {        cancel.setText(id);        return this;    }    /*设置确定String内容*/    public OperationFileDialog setOk(String text) {        ok.setText(text);        return this;    }    /*设置确定intg内容*/    public OperationFileDialog setOk(int id) {        ok.setText(id);        return this;    }    /*设置EditText hint内容*/    public void addEditContentViewHint(String hint) {    //创建EditText        editText = new EditText(context);        editText.setHint(hint);        editText.setTextSize(TypedValue.COMPLEX_UNIT_SP, 17);        editText.setTextColor(getContext().getResources().getColor(R.color.c_666666));        editText.setGravity(Gravity.CENTER);        editText.setBackgroundDrawable(null);    //创建一个线性布局参数        LinearLayout.LayoutParams lp = new LinearLayout.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.MATCH_PARENT);    //位置居中        lp.gravity = Gravity.CENTER;    //把参数设置给EditText        editText.setLayoutParams(lp);    //移除布局中所有的视图        content.removeAllViews();    //把编辑框添加到线性布局中        content.addView(editText);    }    /*添加编辑框内容*/    public void addEditContentView(String string) {        editText = new EditText(context);        editText.setText(string);        int point = string.lastIndexOf(".");    //设置光标        if (point == -1) {            editText.setSelection(0,string.length());        } else {            editText.setSelection(0,point);        }    //获取焦点        editText.requestFocus();    //        editText.setTextSize(TypedValue.COMPLEX_UNIT_SP, 17);        editText.setTextColor(getContext().getResources().getColor(R.color.c_666666));        editText.setGravity(Gravity.CENTER);        editText.setBackgroundDrawable(null);        LinearLayout.LayoutParams lp = new LinearLayout.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.MATCH_PARENT);        lp.gravity = Gravity.CENTER;        editText.setLayoutParams(lp);        content.removeAllViews();        content.addView(editText);    }    //获取编辑内容    public String getEditContentView() {        if (editText != null) {            return editText.getEditableText().toString();        }        return "";    }    /*添加文本内容*/    public void addTextContentView(String text) {        textView = new TextView(context);        textView.setTextSize(TypedValue.COMPLEX_UNIT_SP, 17);        textView.setTextColor(getContext().getResources().getColor(R.color.c_666666));        textView.setGravity(Gravity.CENTER);        LinearLayout.LayoutParams lp = new LinearLayout.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.MATCH_PARENT);        lp.gravity = Gravity.CENTER;        textView.setLayoutParams(lp);        textView.setText(text);        content.removeAllViews();        content.addView(textView);    }    /添加点击事件/    public void addOnClick(OnClick onClick) {        this.onClick = onClick;    }    //显示    @Override    public void show() {        super.show();    }    //    //点击事件接口，具体实现在子类中    public interface OnClick {        public void cancel();        public void ok(String content);    }    }

其中的xml布局为

<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"    android:layout_width="280dp"    android:layout_height="wrap_content"    android:background="@drawable/shape_5_white"    android:orientation="vertical">    <TextView        android:id="@+id/dialog_title"        android:layout_width="match_parent"        android:layout_height="70dp"        android:background="@drawable/shape_5_gray"        android:gravity="center"        android:text=""        android:textColor="@color/c_333333"        android:textSize="@dimen/font_22" />    <LinearLayout        android:id="@+id/dialog_content"        android:layout_width="match_parent"        android:layout_height="85dp"        android:gravity="center"        android:orientation="horizontal" />    <LinearLayout        android:layout_width="match_parent"        android:layout_height="wrap_content"        android:layout_marginBottom="20dp">        <Button            android:id="@+id/dialog_cancel"            android:layout_width="120dp"            android:layout_height="40dp"            android:layout_marginLeft="13dp"            android:background="@drawable/shape_3_gray"            android:text="" />        <Button            android:id="@+id/dialog_ok"            android:layout_width="120dp"            android:layout_height="40dp"            android:layout_marginLeft="14dp"            android:background="@drawable/shape_3_blue"            android:text="" />    </LinearLayout></LinearLayout>

界面预览

这里写图片描述

使用

//创建实例         OperationFileDialog fileDialog = new OperationFileDialog(this);        //设置标题        fileDialog.setOpTitle(R.string.create_folder).setCancel(R.string.op_cancel).setOk(R.string.op_create);        fileDialog.addEditContentView(getString(R.string.please_input_floder_name));        //添加点击事件        fileDialog.addOnClick(new OperationFileDialog.OnClick() {            @Override            public void cancel() {            }            @Override            public void ok(String content) {            }        });        //最重要的一步，显示        fileDialog.show();

项目中的dialog大概都是长这样，每次使用创建实例，设置不同的文本就行了，也可以在中间的线性布局中任意添加控件

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