一、定義對話框佈局:activity_main.xml
<?xml version="1.0" encoding="utf-8"?>
二、佈局文件中引用的樣式:styles.xml
三、自定義對話框類:CustomDialog.java
在其中引用了對話框的佈局文件,activity_main.xml
package com.zyf.myselfdialog_demo; import android.app.Dialog; import android.content.Context; import android.content.DialogInterface; import android.view.LayoutInflater; import android.view.View; import android.view.ViewGroup.LayoutParams; import android.widget.Button; import android.widget.LinearLayout; import android.widget.TextView; public class CustomDialog extends Dialog { public CustomDialog(Context context, int theme) { super(context, theme); } public CustomDialog(Context context) { super(context); } /** * Helper class for creating a custom dialog */ public static class Builder { private Context context; private String title; private String message; private String positiveButtonText; private String negativeButtonText; private View contentView; private OnClickListener positiveButtonClickListener, negativeButtonClickListener; public Builder(Context context) { this.context = context; } /** * Set the Dialog message from String * * @param title * @return */ public Builder setMessage(String message) { this.message = message; return this; } /** * Set the Dialog message from resource * * @param title * @return */ public Builder setMessage(int message) { this.message = (String) context.getText(message); return this; } /** * Set the Dialog title from resource * * @param title * @return */ public Builder setTitle(int title) { this.title = (String) context.getText(title); return this; } /** * Set the Dialog title from String * * @param title * @return */ public Builder setTitle(String title) { this.title = title; return this; } /** * Set a custom content view for the Dialog. If a message is set, the * contentView is not added to the Dialog... * * @param v * @return */ public Builder setContentView(View v) { this.contentView = v; return this; } /** * Set the positive button resource and it's listener * * @param positiveButtonText * @param listener * @return */ public Builder setPositiveButton(int positiveButtonText, OnClickListener listener) { this.positiveButtonText = (String) context .getText(positiveButtonText); this.positiveButtonClickListener = listener; return this; } /** * Set the positive button text and it's listener * * @param positiveButtonText * @param listener * @return */ public Builder setPositiveButton(String positiveButtonText, OnClickListener listener) { this.positiveButtonText = positiveButtonText; this.positiveButtonClickListener = listener; return this; } /** * Set the negative button resource and it's listener * * @param negativeButtonText * @param listener * @return */ public Builder setNegativeButton(int negativeButtonText, OnClickListener listener) { this.negativeButtonText = (String) context .getText(negativeButtonText); this.negativeButtonClickListener = listener; return this; } /** * Set the negative button text and it's listener * * @param negativeButtonText * @param listener * @return */ public Builder setNegativeButton(String negativeButtonText, OnClickListener listener) { this.negativeButtonText = negativeButtonText; this.negativeButtonClickListener = listener; return this; } /** * Create the custom dialog */ public CustomDialog create() { LayoutInflater inflater = (LayoutInflater) context .getSystemService(Context.LAYOUT_INFLATER_SERVICE); // instantiate the dialog with the custom Theme final CustomDialog dialog = new CustomDialog(context, R.style.Dialog); View layout = inflater.inflate(R.layout.activity_main, null); dialog.addContentView(layout, new LayoutParams( LayoutParams.FILL_PARENT, LayoutParams.WRAP_CONTENT)); // set the dialog title ((TextView) layout.findViewById(R.id.title)).setText(title); // set the confirm button if (positiveButtonText != null) { ((Button) layout.findViewById(R.id.positiveButton)) .setText(positiveButtonText); if (positiveButtonClickListener != null) { ((Button) layout.findViewById(R.id.positiveButton)) .setOnClickListener(new View.OnClickListener() { public void onClick(View v) { positiveButtonClickListener.onClick(dialog, DialogInterface.BUTTON_POSITIVE); } }); } } else { // if no confirm button just set the visibility to GONE layout.findViewById(R.id.positiveButton).setVisibility( View.GONE); } // set the cancel button if (negativeButtonText != null) { ((Button) layout.findViewById(R.id.negativeButton)) .setText(negativeButtonText); if (negativeButtonClickListener != null) { ((Button) layout.findViewById(R.id.negativeButton)) .setOnClickListener(new View.OnClickListener() { public void onClick(View v) { negativeButtonClickListener.onClick(dialog, DialogInterface.BUTTON_NEGATIVE); } }); } } else { // if no confirm button just set the visibility to GONE layout.findViewById(R.id.negativeButton).setVisibility( View.GONE); } // set the content message if (message != null) { ((TextView) layout.findViewById(R.id.message)).setText(message); } else if (contentView != null) { // if no message set // add the contentView to the dialog body ((LinearLayout) layout.findViewById(R.id.content)) .removeAllViews(); ((LinearLayout) layout.findViewById(R.id.content)).addView( contentView, new LayoutParams( LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT)); } dialog.setContentView(layout); return dialog; } } }
package com.zyf.myselfdialog_demo;
import com.zyf.myselfdialog_demo.CustomDialog.Builder;
import android.os.Bundle;
import android.app.Activity;
import android.app.AlertDialog;
import android.app.Dialog;
import android.content.DialogInterface;
import android.view.Menu;
import android.widget.Toast;
public class MainActivity extends Activity {
private static final int CUSTOM_DIALOG = 1;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
showDialog(CUSTOM_DIALOG);
}
@Override
public Dialog onCreateDialog(int dialogId) {
Dialog dialog = null;
switch (dialogId) {
case CUSTOM_DIALOG:
Builder customBuilder = new Builder(MainActivity.this);
customBuilder
.setTitle("Custom title")
.setMessage("Custom body")
.setNegativeButton("Cancel",
new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog,
int which) {
MainActivity.this
.dismissDialog(CUSTOM_DIALOG);
// Toast.makeText(MainActivity.this, "cancel",
// 3).show();
}
})
.setPositiveButton("Confirm",
new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog,
int which) {
dialog.dismiss();
// Toast.makeText(MainActivity.this, "ok",
// 3).show();
}
});
dialog = customBuilder.create();
break;
}
return dialog;
}
}